| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace SilverStripe\CMS\Model; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use SilverStripe\Core\Convert; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use SilverStripe\Forms\LiteralField; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use SilverStripe\Forms\ReadonlyTransformation; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use SilverStripe\Forms\TreeDropdownField; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use SilverStripe\ORM\DataObject; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use SilverStripe\ORM\Versioning\Versioned; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | use SilverStripe\Security\Member; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use Page; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * Virtual Page creates an instance of a  page, with the same fields that the original page had, but readonly. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * This allows you can have a page in mulitple places in the site structure, with different children without duplicating the content | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * Note: This Only duplicates $db fields and not the $has_one etc.. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * @method SiteTree CopyContentFrom() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  * @property int $CopyContentFromID | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | class VirtualPage extends Page { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	private static $description = 'Displays the content of another page'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 	public static $virtualFields; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 	 * @var array Define fields that are not virtual - the virtual page must define these fields themselves. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 	 * Note that anything in {@link self::config()->initially_copied_fields} is implicitly included in this list. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 	private static $non_virtual_fields = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | 		"ID", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 		"ClassName", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 		"ObsoleteClassName", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | 		"SecurityTypeID", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 		"OwnerID", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | 		"ParentID", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | 		"URLSegment", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  | 		"Sort", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 		"Status", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 		'ShowInMenus', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 		// 'Locale' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  | 		'ShowInSearch', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  | 		'Version', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | 		"Embargo", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 		"Expiry", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 		"CanViewType", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 		"CanEditType", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 		"CopyContentFromID", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | 		"HasBrokenLink", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 	); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 	 * @var array Define fields that are initially copied to virtual pages but left modifiable after that. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 	private static $initially_copied_fields = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | 		'ShowInMenus', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  | 		'ShowInSearch', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  | 		'URLSegment', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	private static $has_one = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | 		"CopyContentFrom" => "SilverStripe\\CMS\\Model\\SiteTree", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | 	private static $owns = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  | 		"CopyContentFrom", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 	); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 	private static $db = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 		"VersionID" => "Int", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  | 	); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  | 	private static $table_name = 'VirtualPage'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | 	 * Generates the array of fields required for the page type. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | 	 * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  | 	public function getVirtualFields() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  | 		// Check if copied page exists | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  | 		$record = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  | 		if(!$record || !$record->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  | 			return array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  | 		// Diff db with non-virtual fields | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  | 		$fields = array_keys($record->db()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 		$nonVirtualFields = $this->getNonVirtualisedFields(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  | 		return array_diff($fields, $nonVirtualFields); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 	 * List of fields or properties to never virtualise | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 	 * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | 	public function getNonVirtualisedFields() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 		return array_merge($this->config()->non_virtual_fields, $this->config()->initially_copied_fields); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 103 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 104 |  |  | 	public function setCopyContentFromID($val) { | 
            
                                                                        
                            
            
                                    
            
            
                | 105 |  |  | 		// Sanity check to prevent pages virtualising other virtual pages | 
            
                                                                        
                            
            
                                    
            
            
                | 106 |  |  | 		if($val && DataObject::get_by_id('SilverStripe\\CMS\\Model\\SiteTree', $val) instanceof VirtualPage) { | 
            
                                                                        
                            
            
                                    
            
            
                | 107 |  |  | 			$val = 0; | 
            
                                                                        
                            
            
                                    
            
            
                | 108 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 109 |  |  | 		return $this->setField("CopyContentFromID", $val); | 
            
                                                                        
                            
            
                                    
            
            
                | 110 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  | 	public function ContentSource() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 		$copied = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 		if($copied && $copied->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 			return $copied; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 		return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  | 	 * For VirtualPage, add a canonical link tag linking to the original page | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | 	 * See TRAC #6828 & http://support.google.com/webmasters/bin/answer.py?hl=en&answer=139394 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  | 	 * @param boolean $includeTitle Show default <title>-tag, set to false for custom templating | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  | 	 * @return string The XHTML metatags | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  | 	public function MetaTags($includeTitle = true) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  | 		$tags = parent::MetaTags($includeTitle); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  | 		$copied = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  | 		if ($copied && $copied->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  | 			$link = Convert::raw2att($copied->Link()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  | 			$tags .= "<link rel=\"canonical\" href=\"{$link}\" />\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  | 		return $tags; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  | 	public function allowedChildren() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  | 		$copy = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  | 		if($copy && $copy->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  | 			return $copy->allowedChildren(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  | 		return array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  | 	public function syncLinkTracking() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  | 		if($this->CopyContentFromID) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  | 			$this->HasBrokenLink = !(bool) DataObject::get_by_id('SilverStripe\\CMS\\Model\\SiteTree', $this->CopyContentFromID); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  | 			$this->HasBrokenLink = true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  | 	 * We can only publish the page if there is a published source page | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  | 	 * @param Member $member Member to check | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  | 	 * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  | 	public function canPublish($member = null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  | 		return $this->isPublishable() && parent::canPublish($member); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  | 	 * Returns true if is page is publishable by anyone at all | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  | 	 * Return false if the source page isn't published yet. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  | 	 * Note that isPublishable doesn't affect ete from live, only publish. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  | 	public function isPublishable() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  | 		// No source | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  | 		if(!$this->CopyContentFrom() || !$this->CopyContentFrom()->ID) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  | 		// Unpublished source | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  | 		if(!Versioned::get_versionnumber_by_stage('SilverStripe\\CMS\\Model\\SiteTree', 'Live', $this->CopyContentFromID)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  | 		// Default - publishable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  | 		return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  | 	 * Generate the CMS fields from the fields from the original page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  | 	public function getCMSFields() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  | 		$fields = parent::getCMSFields(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  | 		// Setup the linking to the original page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  | 		$copyContentFromField = new TreeDropdownField( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  | 			"CopyContentFromID", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  | 			_t('VirtualPage.CHOOSE', "Linked Page"), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  | 			"SilverStripe\\CMS\\Model\\SiteTree" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  | 		// filter doesn't let you select children of virtual pages as as source page | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  | 		//$copyContentFromField->setFilterFunction(create_function('$item', 'return !($item instanceof VirtualPage);')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  | 		// Setup virtual fields | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  | 		if($virtualFields = $this->getVirtualFields()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  | 			$roTransformation = new ReadonlyTransformation(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  | 			foreach($virtualFields as $virtualField) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  | 				if($fields->dataFieldByName($virtualField)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  | 					$fields->replaceField($virtualField, $fields->dataFieldByName($virtualField)->transform($roTransformation)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  | 		$msgs = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  | 		$fields->addFieldToTab("Root.Main", $copyContentFromField, "Title"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  | 		// Create links back to the original object in the CMS | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  | 		if($this->CopyContentFrom()->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  | 			$link = "<a class=\"cmsEditlink\" href=\"admin/pages/edit/show/$this->CopyContentFromID\">" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  | 				. _t('VirtualPage.EditLink', 'edit') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  | 				. "</a>"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  | 			$msgs[] = _t( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  | 				'VirtualPage.HEADERWITHLINK', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  | 				"This is a virtual page copying content from \"{title}\" ({link})", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  | 				array( | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  | 					'title' => $this->CopyContentFrom()->obj('Title'), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  | 					'link' => $link | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  | 				) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  | 			$msgs[] = _t('VirtualPage.HEADER', "This is a virtual page"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  | 			$msgs[] = _t( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  | 				'SITETREE.VIRTUALPAGEWARNING', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  | 				'Please choose a linked page and save first in order to publish this page' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  | 		if( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  | 			$this->CopyContentFromID | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  | 			&& !Versioned::get_versionnumber_by_stage('SilverStripe\\CMS\\Model\\SiteTree', 'Live', $this->CopyContentFromID) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  | 		) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  | 			$msgs[] = _t( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  | 				'SITETREE.VIRTUALPAGEDRAFTWARNING', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  | 				'Please publish the linked page in order to publish the virtual page' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  | 		$fields->addFieldToTab("Root.Main", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  | 			new LiteralField( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  | 				'VirtualPageMessage', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  | 				'<div class="message notice">' . implode('. ', $msgs) . '.</div>' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  | 			), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  | 			'CopyContentFromID' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  | 		return $fields; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  | 	public function onBeforeWrite() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  | 		parent::onBeforeWrite(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  | 		$this->refreshFromCopied(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  | 	 * Copy any fields from the copied record to bootstrap /backup | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  | 	protected function refreshFromCopied() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  | 		// Skip if copied record isn't available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  | 		$source = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  | 		if(!$source || !$source->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  | 			return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  | 		// We also want to copy certain, but only if we're copying the source page for the first | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  | 		// time. After this point, the user is free to customise these for the virtual page themselves. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  | 		if($this->isChanged('CopyContentFromID', 2) && $this->CopyContentFromID) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  | 			foreach (self::config()->initially_copied_fields as $fieldName) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  | 				$this->$fieldName = $source->$fieldName; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  | 		// Copy fields to the original record in case the class type changes | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  | 		foreach($this->getVirtualFields() as $virtualField) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  | 			$this->$virtualField = $source->$virtualField; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  | 	public function getSettingsFields() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  | 		$fields = parent::getSettingsFields(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  | 		if(!$this->CopyContentFrom()->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  | 			$fields->addFieldToTab("Root.Settings", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  | 				new LiteralField( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  | 					'VirtualPageWarning', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  | 					'<div class="message notice">' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  | 					 . _t( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  | 							'SITETREE.VIRTUALPAGEWARNINGSETTINGS', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  | 							'Please choose a linked page in the main content fields in order to publish' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  | 						) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  | 					. '</div>' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  | 				), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  | 				'ClassName' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  | 		return $fields; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  | 	public function validate() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  | 		$result = parent::validate(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  | 		// "Can be root" validation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  | 		$orig = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  | 		if($orig && $orig->exists() && !$orig->stat('can_be_root') && !$this->ParentID) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  | 			$result->error( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  | 				_t( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  | 					'VirtualPage.PageTypNotAllowedOnRoot', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  | 					'Original page type "{type}" is not allowed on the root level for this virtual page', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  | 					array('type' => $orig->i18n_singular_name()) | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  | 				), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  | 				'CAN_BE_ROOT_VIRTUAL' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  | 			); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  | 		return $result; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  | 	public function updateImageTracking() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 |  |  | 		// Doesn't work on unsaved records | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 |  |  | 		if(!$this->ID) return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  | 		// Remove CopyContentFrom() from the cache | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  | 		unset($this->components['CopyContentFrom']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 |  |  | 		// Update ImageTracking | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 |  |  | 		$this->ImageTracking()->setByIDList($this->CopyContentFrom()->ImageTracking()->column('ID')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 331 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  | 	 * @param string $numChildrenMethod | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  | 	 * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 |  |  | 	public function CMSTreeClasses($numChildrenMethod="numChildren") { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 |  |  | 		return parent::CMSTreeClasses($numChildrenMethod) . ' VirtualPage-' . $this->CopyContentFrom()->ClassName; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 338 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 339 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 340 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 341 |  |  | 	 * Allow attributes on the master page to pass | 
            
                                                                                                            
                            
            
                                    
            
            
                | 342 |  |  | 	 * through to the virtual page | 
            
                                                                                                            
                            
            
                                    
            
            
                | 343 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 344 |  |  | 	 * @param string $field | 
            
                                                                                                            
                            
            
                                    
            
            
                | 345 |  |  | 	 * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 346 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 |  |  | 	public function __get($field) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  | 		if(parent::hasMethod($funcName = "get$field")) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 |  |  | 			return $this->$funcName(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  | 		if(parent::hasField($field) || ($field === 'ID' && !$this->exists())) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 352 |  |  | 			return $this->getField($field); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 353 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 354 |  |  | 		if(($copy = $this->CopyContentFrom()) && $copy->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 355 |  |  | 			return $copy->$field; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 356 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 357 |  |  | 		return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 358 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 359 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 360 |  |  | 	public function getField($field) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 361 |  |  | 		if($this->isFieldVirtualised($field)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 362 |  |  | 			return $this->CopyContentFrom()->getField($field); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 363 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 364 |  |  | 		return parent::getField($field); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 365 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 366 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 367 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 368 |  |  | 	 * Check if given field is virtualised | 
            
                                                                                                            
                            
            
                                    
            
            
                | 369 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 370 |  |  | 	 * @param string $field | 
            
                                                                                                            
                            
            
                                    
            
            
                | 371 |  |  | 	 * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 372 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 373 |  |  | 	public function isFieldVirtualised($field) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 374 |  |  | 		// Don't defer if field is non-virtualised | 
            
                                                                                                            
                            
            
                                    
            
            
                | 375 |  |  | 		$ignore = $this->getNonVirtualisedFields(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 376 |  |  | 		if(in_array($field, $ignore)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 377 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 378 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 379 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 380 |  |  | 		// Don't defer if no virtual page | 
            
                                                                                                            
                            
            
                                    
            
            
                | 381 |  |  | 		$copied = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 382 |  |  | 		if(!$copied || !$copied->exists()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 383 |  |  | 			return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 384 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 385 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 386 |  |  | 		// Check if copied object has this field | 
            
                                                                                                            
                            
            
                                    
            
            
                | 387 |  |  | 		return $copied->hasField($field); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 388 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 389 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 390 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 391 |  |  | 	 * Pass unrecognized method calls on to the original data object | 
            
                                                                                                            
                            
            
                                    
            
            
                | 392 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 393 |  |  | 	 * @param string $method | 
            
                                                                                                            
                            
            
                                    
            
            
                | 394 |  |  | 	 * @param string $args | 
            
                                                                                                            
                            
            
                                    
            
            
                | 395 |  |  | 	 * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 396 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 397 |  |  | 	public function __call($method, $args) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 398 |  |  | 		if(parent::hasMethod($method)) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 399 |  |  | 			return parent::__call($method, $args); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 400 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 401 |  |  | 			return call_user_func_array(array($this->CopyContentFrom(), $method), $args); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 402 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 403 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 404 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 405 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 406 |  |  | 	 * @param string $field | 
            
                                                                                                            
                            
            
                                    
            
            
                | 407 |  |  | 	 * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 408 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 409 |  |  | 	public function hasField($field) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 410 |  |  | 		if(parent::hasField($field)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 411 |  |  | 			return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 412 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 413 |  |  | 		$copy = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 414 |  |  | 		return $copy && $copy->exists() && $copy->hasField($field); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 415 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 416 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 417 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 418 |  |  | 	 * Return the "casting helper" (a piece of PHP code that when evaluated creates a casted value object) for a field | 
            
                                                                                                            
                            
            
                                    
            
            
                | 419 |  |  | 	 * on this object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 420 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 421 |  |  | 	 * @param string $field | 
            
                                                                                                            
                            
            
                                    
            
            
                | 422 |  |  | 	 * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 423 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 424 |  |  | 	public function castingHelper($field) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 425 |  |  | 		$copy = $this->CopyContentFrom(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 426 |  |  | 		if($copy && $copy->exists() && ($helper = $copy->castingHelper($field))) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 427 |  |  | 			return $helper; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 428 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 429 |  |  | 		return parent::castingHelper($field); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 430 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 431 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 432 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 433 |  |  | 	 * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 434 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 435 |  |  | 	public function allMethodNames($custom = false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 436 |  |  |  		$methods = parent::allMethodNames($custom); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 437 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 438 |  |  |  		if ($copy = $this->CopyContentFrom()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 439 |  |  |  			$methods = array_merge($methods, $copy->allMethodNames($custom)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 440 |  |  |  		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 441 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 442 |  |  |  		return $methods; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 443 |  |  |  	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 444 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 445 |  |  |  	/** | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 446 |  |  | 	 * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 447 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 448 |  |  | 	public function getControllerName() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 449 |  |  | 		if ($copy = $this->CopyContentFrom()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 450 |  |  | 			return $copy->getControllerName(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 451 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 452 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 453 |  |  | 		return parent::getControllerName(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 454 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 455 |  |  |  | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 456 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 457 |  |  |  | 
            
                        
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: