| Total Complexity | 101 | 
| Total Lines | 833 | 
| Duplicated Lines | 0 % | 
| Changes | 0 | ||
Complex classes like BaseElement often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use BaseElement, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 43 | class BaseElement extends DataObject  | 
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| 44 | { | 
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| 45 | /**  | 
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| 46 | * Override this on your custom elements to specify a CSS icon class  | 
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| 47 | *  | 
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| 48 | * @var string  | 
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| 49 | */  | 
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| 50 | private static $icon = 'font-icon-block-layout';  | 
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                         | 
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| 51 | |||
| 52 | /**  | 
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| 53 | * Describe the purpose of this element  | 
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| 54 | *  | 
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| 55 | * @config  | 
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| 56 | * @var string  | 
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| 57 | */  | 
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| 58 | private static $description = 'Base element class';  | 
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| 59 | |||
| 60 | private static $db = [  | 
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| 61 | 'Title' => 'Varchar(255)',  | 
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| 62 | 'ShowTitle' => 'Boolean',  | 
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| 63 | 'Sort' => 'Int',  | 
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| 64 | 'ExtraClass' => 'Varchar(255)',  | 
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| 65 | 'Style' => 'Varchar(255)'  | 
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| 66 | ];  | 
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| 67 | |||
| 68 | private static $has_one = [  | 
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| 69 | 'Parent' => ElementalArea::class  | 
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| 70 | ];  | 
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| 71 | |||
| 72 | private static $extensions = [  | 
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| 73 | Versioned::class  | 
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| 74 | ];  | 
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| 75 | |||
| 76 | private static $versioned_gridfield_extensions = true;  | 
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| 77 | |||
| 78 | private static $table_name = 'Element';  | 
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| 79 | |||
| 80 | /**  | 
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| 81 | * @var string  | 
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| 82 | */  | 
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| 83 | private static $controller_class = ElementController::class;  | 
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| 84 | |||
| 85 | /**  | 
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| 86 | * @var string  | 
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| 87 | */  | 
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| 88 | private static $controller_template = 'ElementHolder';  | 
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| 89 | |||
| 90 | /**  | 
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| 91 | * @var ElementController  | 
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| 92 | */  | 
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| 93 | protected $controller;  | 
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| 94 | |||
| 95 | private static $default_sort = 'Sort';  | 
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| 96 | |||
| 97 | private static $singular_name = 'block';  | 
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| 98 | |||
| 99 | private static $plural_name = 'blocks';  | 
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| 100 | |||
| 101 | private static $summary_fields = [  | 
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| 102 | 'EditorPreview' => 'Summary'  | 
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| 103 | ];  | 
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| 104 | |||
| 105 | /**  | 
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| 106 | * @config  | 
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| 107 | * @var array  | 
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| 108 | */  | 
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| 109 | private static $styles = [];  | 
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| 110 | |||
| 111 | private static $searchable_fields = [  | 
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| 112 | 'ID' => [  | 
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| 113 | 'field' => NumericField::class,  | 
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| 114 | ],  | 
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| 115 | 'Title',  | 
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| 116 | 'LastEdited'  | 
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| 117 | ];  | 
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| 118 | |||
| 119 | /**  | 
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| 120 | * Enable for backwards compatibility  | 
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| 121 | *  | 
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| 122 | * @var boolean  | 
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| 123 | */  | 
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| 124 | private static $disable_pretty_anchor_name = false;  | 
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| 125 | |||
| 126 | /**  | 
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| 127 | * Store used anchor names, this is to avoid title clashes  | 
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| 128 | * when calling 'getAnchor'  | 
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| 129 | *  | 
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| 130 | * @var array  | 
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| 131 | */  | 
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| 132 | protected static $used_anchors = [];  | 
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| 133 | |||
| 134 | /**  | 
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| 135 | * For caching 'getAnchor'  | 
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| 136 | *  | 
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| 137 | * @var string  | 
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| 138 | */  | 
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| 139 | protected $anchor = null;  | 
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| 140 | |||
| 141 | /**  | 
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| 142 | * Basic permissions, defaults to page perms where possible.  | 
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| 143 | *  | 
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| 144 | * @param Member $member  | 
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| 145 | * @return boolean  | 
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| 146 | */  | 
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| 147 | public function canView($member = null)  | 
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| 148 |     { | 
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| 149 | $extended = $this->extendedCan(__FUNCTION__, $member);  | 
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| 150 |         if ($extended !== null) { | 
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| 151 | return $extended;  | 
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| 152 | }  | 
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| 153 | |||
| 154 |         if ($this->hasMethod('getPage')) { | 
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| 155 |             if ($page = $this->getPage()) { | 
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| 156 | return $page->canView($member);  | 
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| 157 | }  | 
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| 158 | }  | 
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| 159 | |||
| 160 |         return (Permission::check('CMS_ACCESS', 'any', $member)) ? true : null; | 
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| 161 | }  | 
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| 162 | |||
| 163 | /**  | 
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| 164 | * Basic permissions, defaults to page perms where possible.  | 
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| 165 | *  | 
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| 166 | * @param Member $member  | 
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| 167 | *  | 
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| 168 | * @return boolean  | 
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| 169 | */  | 
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| 170 | public function canEdit($member = null)  | 
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| 171 |     { | 
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| 172 | $extended = $this->extendedCan(__FUNCTION__, $member);  | 
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| 173 |         if ($extended !== null) { | 
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| 174 | return $extended;  | 
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| 175 | }  | 
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| 176 | |||
| 177 |         if ($this->hasMethod('getPage')) { | 
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| 178 |             if ($page = $this->getPage()) { | 
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| 179 | return $page->canEdit($member);  | 
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| 180 | }  | 
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| 181 | }  | 
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| 182 | |||
| 183 |         return (Permission::check('CMS_ACCESS', 'any', $member)) ? true : null; | 
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| 184 | }  | 
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| 185 | |||
| 186 | /**  | 
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| 187 | * Basic permissions, defaults to page perms where possible.  | 
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| 188 | *  | 
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| 189 | * Uses archive not delete so that current stage is respected i.e if a  | 
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| 190 | * element is not published, then it can be deleted by someone who doesn't  | 
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| 191 | * have publishing permissions.  | 
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| 192 | *  | 
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| 193 | * @param Member $member  | 
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| 194 | *  | 
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| 195 | * @return boolean  | 
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| 196 | */  | 
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| 197 | public function canDelete($member = null)  | 
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| 211 | }  | 
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| 212 | |||
| 213 | /**  | 
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| 214 | * Basic permissions, defaults to page perms where possible.  | 
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| 215 | *  | 
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| 216 | * @param Member $member  | 
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| 217 | * @param array $context  | 
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| 218 | *  | 
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| 219 | * @return boolean  | 
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| 220 | */  | 
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| 221 | public function canCreate($member = null, $context = array())  | 
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| 229 | }  | 
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| 230 | |||
| 231 | /**  | 
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| 232 | * Increment the sort order if one hasn't been already defined. This  | 
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| 233 | * ensures that new elements are created at the end of the list by default.  | 
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| 234 | *  | 
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| 235 |      * {@inheritDoc} | 
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| 236 | */  | 
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| 237 | public function onBeforeWrite()  | 
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| 238 |     { | 
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| 239 | parent::onBeforeWrite();  | 
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| 240 | |||
| 241 |         if (!$this->Sort) { | 
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| 242 |             if ($this->hasExtension(Versioned::class)) { | 
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| 243 | $records = Versioned::get_by_stage(BaseElement::class, Versioned::DRAFT);  | 
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| 244 |             } else { | 
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| 245 |                 $records = BaseElement::get()->max('Sort'); | 
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| 246 | }  | 
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| 247 | |||
| 248 |             $records = $records->filter('ParentID', $this->ParentID); | 
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| 249 | |||
| 250 |             $this->Sort = $records->max('Sort') + 1; | 
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| 251 | }  | 
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| 252 | }  | 
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| 253 | |||
| 254 | public function getCMSFields()  | 
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| 255 |     { | 
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| 256 |         $this->beforeUpdateCMSFields(function (FieldList $fields) { | 
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| 257 | // Remove relationship fields  | 
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| 258 |             $fields->removeByName('ParentID'); | 
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| 259 |             $fields->removeByName('Sort'); | 
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| 260 | |||
| 261 | $fields->addFieldToTab(  | 
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| 262 | 'Root.Settings',  | 
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| 263 |                 TextField::create('ExtraClass', _t(__CLASS__ . '.ExtraCssClassesLabel', 'Custom CSS classes')) | 
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| 264 | ->setAttribute(  | 
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| 265 | 'placeholder',  | 
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| 266 | _t(__CLASS__ . '.ExtraCssClassesPlaceholder', 'my_class another_class')  | 
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| 267 | )  | 
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| 268 | );  | 
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| 269 | |||
| 270 | // Add a combined field for "Title" and "Displayed" checkbox in a Bootstrap input group  | 
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| 271 |             $fields->removeByName('ShowTitle'); | 
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| 272 | $fields->replaceField(  | 
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| 273 | 'Title',  | 
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| 274 | TextCheckboxGroupField::create(  | 
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| 275 |                     TextField::create('Title', _t(__CLASS__ . '.TitleLabel', 'Title (displayed if checked)')), | 
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| 276 |                     CheckboxField::create('ShowTitle', _t(__CLASS__ . '.ShowTitleLabel', 'Displayed')) | 
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| 277 | )  | 
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| 278 |                     ->setName('TitleAndDisplayed') | 
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| 279 | );  | 
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| 280 | |||
| 281 | // Rename the "Main" tab  | 
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| 282 |             $fields->fieldByName('Root.Main') | 
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| 283 | ->setTitle(_t(__CLASS__ . '.MainTabLabel', 'Content'));  | 
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| 284 | |||
| 285 |             $fields->addFieldsToTab('Root.Main', [ | 
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| 286 |                 HiddenField::create('AbsoluteLink', false, Director::absoluteURL($this->PreviewLink())), | 
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| 287 |                 HiddenField::create('LiveLink', false, Director::absoluteURL($this->Link())), | 
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| 288 |                 HiddenField::create('StageLink', false, Director::absoluteURL($this->PreviewLink())), | 
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| 289 | ]);  | 
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| 290 | |||
| 291 |             $styles = $this->config()->get('styles'); | 
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| 292 | |||
| 293 |             if ($styles && count($styles) > 0) { | 
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| 294 |                 $styleDropdown = DropdownField::create('Style', _t(__CLASS__.'.STYLE', 'Style variation'), $styles); | 
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| 295 | |||
| 296 | $fields->insertBefore($styleDropdown, 'ExtraClass');  | 
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| 297 | |||
| 298 | $styleDropdown->setEmptyString(_t(__CLASS__.'.CUSTOM_STYLES', 'Select a style..'));  | 
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| 299 |             } else { | 
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| 300 |                 $fields->removeByName('Style'); | 
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| 301 | }  | 
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| 302 | |||
| 303 | // Support for new history viewer in SS 4.2+  | 
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| 304 |             if (class_exists(HistoryViewerField::class)) { | 
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| 305 |                 Requirements::javascript('dnadesign/silverstripe-elemental:client/dist/js/bundle.js'); | 
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| 306 | |||
| 307 |                 $historyViewer = HistoryViewerField::create('ElementHistory'); | 
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| 308 |                 $fields->addFieldToTab('Root.History', $historyViewer); | 
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| 309 | |||
| 310 |                 $fields->fieldByName('Root.History') | 
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| 311 |                     ->addExtraClass('elemental-block__history-tab tab--history-viewer'); | 
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| 312 | }  | 
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| 313 | });  | 
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| 314 | |||
| 315 | return parent::getCMSFields();  | 
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| 316 | }  | 
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| 317 | |||
| 318 | /**  | 
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| 319 | * Get the type of the current block, for use in GridField summaries, block  | 
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| 320 | * type dropdowns etc. Examples are "Content", "File", "Media", etc.  | 
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| 321 | *  | 
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| 322 | * @return string  | 
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| 323 | */  | 
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| 324 | public function getType()  | 
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| 325 |     { | 
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| 326 | return _t(__CLASS__ . '.BlockType', 'Block');  | 
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| 327 | }  | 
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| 328 | |||
| 329 | /**  | 
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| 330 | * @param ElementController $controller  | 
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| 331 | *  | 
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| 332 | * @return $this  | 
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| 333 | */  | 
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| 334 | public function setController($controller)  | 
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| 335 |     { | 
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| 336 | $this->controller = $controller;  | 
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| 337 | |||
| 338 | return $this;  | 
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| 339 | }  | 
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| 340 | |||
| 341 | /**  | 
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| 342 | * @throws Exception If the specified controller class doesn't exist  | 
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| 343 | *  | 
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| 344 | * @return ElementController  | 
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| 345 | */  | 
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| 346 | public function getController()  | 
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| 347 |     { | 
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| 348 |         if ($this->controller) { | 
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| 349 | return $this->controller;  | 
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| 350 | }  | 
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| 351 | |||
| 352 | $controllerClass = self::config()->controller_class;  | 
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| 353 | |||
| 354 |         if (!class_exists($controllerClass)) { | 
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| 355 | throw new Exception(  | 
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| 356 | 'Could not find controller class ' . $controllerClass . ' as defined in ' . static::class  | 
            ||
| 357 | );  | 
            ||
| 358 | }  | 
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| 359 | |||
| 360 | $this->controller = Injector::inst()->create($controllerClass, $this);  | 
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| 361 | $this->controller->doInit();  | 
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| 362 | |||
| 363 | return $this->controller;  | 
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| 364 | }  | 
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| 365 | |||
| 366 | /**  | 
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| 367 | * @return Controller  | 
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| 368 | */  | 
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| 369 | public function Top()  | 
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| 370 |     { | 
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| 371 | return (Controller::has_curr()) ? Controller::curr() : null;  | 
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| 372 | }  | 
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| 373 | |||
| 374 | /**  | 
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| 375 | * Default way to render element in templates. Note that all blocks should  | 
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| 376 |      * be rendered through their {@link ElementController} class as this | 
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| 377 | * contains the holder styles.  | 
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| 378 | *  | 
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| 379 | * @return string|null HTML  | 
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| 380 | */  | 
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| 381 | public function forTemplate($holder = true)  | 
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| 382 |     { | 
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| 383 | $templates = $this->getRenderTemplates();  | 
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| 384 | |||
| 385 |         if ($templates) { | 
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| 386 | return $this->renderWith($templates);  | 
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| 387 | }  | 
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| 388 | |||
| 389 | return null;  | 
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| 390 | }  | 
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| 391 | |||
| 392 | /**  | 
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| 393 | * @param string $suffix  | 
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| 394 | *  | 
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| 395 | * @return array  | 
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| 396 | */  | 
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| 397 | public function getRenderTemplates($suffix = '')  | 
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| 398 |     { | 
            ||
| 399 | $classes = ClassInfo::ancestry($this->ClassName);  | 
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| 400 | $classes[static::class] = static::class;  | 
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| 401 | $classes = array_reverse($classes);  | 
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| 402 | $templates = [];  | 
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| 403 | |||
| 404 |         foreach ($classes as $key => $class) { | 
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| 405 |             if ($class == BaseElement::class) { | 
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| 406 | continue;  | 
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| 407 | }  | 
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| 408 | |||
| 409 |             if ($class == DataObject::class) { | 
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| 410 | break;  | 
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| 411 | }  | 
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| 412 | |||
| 413 |             if ($style = $this->Style) { | 
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| 414 | $templates[$class][] = $class . $suffix . '_'. $this->getAreaRelationName() . '_' . $style;  | 
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| 415 | $templates[$class][] = $class . $suffix . '_' . $style;  | 
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| 416 | }  | 
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| 417 | $templates[$class][] = $class . $suffix . '_'. $this->getAreaRelationName();  | 
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| 418 | $templates[$class][] = $class . $suffix;  | 
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| 419 | }  | 
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| 420 | |||
| 421 |         $this->extend('updateRenderTemplates', $templates, $suffix); | 
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| 422 | |||
| 423 | $templateFlat = [];  | 
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| 424 |         foreach ($templates as $class => $variations) { | 
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| 425 | $templateFlat = array_merge($templateFlat, $variations);  | 
            ||
| 426 | }  | 
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| 427 | |||
| 428 | return $templateFlat;  | 
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| 429 | }  | 
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| 430 | |||
| 431 | /**  | 
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| 432 | * Strip all namespaces from class namespace.  | 
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| 433 | *  | 
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| 434 | * @param string $classname e.g. "\Fully\Namespaced\Class"  | 
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| 435 | *  | 
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| 436 | * @return string following the param example, "Class"  | 
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| 437 | */  | 
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| 438 | protected function stripNamespacing($classname)  | 
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| 439 |     { | 
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| 440 |         $classParts = explode('\\', $classname); | 
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| 441 | return array_pop($classParts);  | 
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| 442 | }  | 
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| 443 | |||
| 444 | /**  | 
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| 445 | * @return string  | 
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| 446 | */  | 
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| 447 | public function getSimpleClassName()  | 
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| 448 |     { | 
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| 449 | return strtolower($this->sanitiseClassName($this->ClassName, '__'));  | 
            ||
| 450 | }  | 
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| 451 | |||
| 452 | /**  | 
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| 453 | * @return null|DataObject  | 
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| 454 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
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| 455 | * @throws \SilverStripe\ORM\ValidationException  | 
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| 456 | */  | 
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| 457 | public function getPage()  | 
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| 458 |     { | 
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| 459 | $area = $this->Parent();  | 
            ||
| 460 | |||
| 461 |         if ($area instanceof ElementalArea && $area->exists()) { | 
            ||
| 462 | return $area->getOwnerPage();  | 
            ||
| 463 | }  | 
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| 464 | |||
| 465 | return null;  | 
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| 466 | }  | 
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| 467 | |||
| 468 | /**  | 
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| 469 | * Get a unique anchor name  | 
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| 470 | *  | 
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| 471 | * @return string  | 
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| 472 | */  | 
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| 473 | public function getAnchor()  | 
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| 474 |     { | 
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| 475 |         if ($this->anchor !== null) { | 
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| 476 | return $this->anchor;  | 
            ||
| 477 | }  | 
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| 478 | |||
| 479 | $anchorTitle = '';  | 
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| 480 | |||
| 481 |         if (!$this->config()->disable_pretty_anchor_name) { | 
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| 482 |             if ($this->hasMethod('getAnchorTitle')) { | 
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| 483 | $anchorTitle = $this->getAnchorTitle();  | 
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| 484 |             } elseif ($this->config()->enable_title_in_template) { | 
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| 485 |                 $anchorTitle = $this->getField('Title'); | 
            ||
| 486 | }  | 
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| 487 | }  | 
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| 488 | |||
| 489 |         if (!$anchorTitle) { | 
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| 490 | $anchorTitle = 'e'.$this->ID;  | 
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| 491 | }  | 
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| 492 | |||
| 493 | $filter = URLSegmentFilter::create();  | 
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| 494 | $titleAsURL = $filter->filter($anchorTitle);  | 
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| 495 | |||
| 496 | // Ensure that this anchor name isn't already in use  | 
            ||
| 497 | // ie. If two elemental blocks have the same title, it'll append '-2', '-3'  | 
            ||
| 498 | $result = $titleAsURL;  | 
            ||
| 499 | $count = 1;  | 
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| 500 |         while (isset(self::$used_anchors[$result]) && self::$used_anchors[$result] !== $this->ID) { | 
            ||
| 501 | ++$count;  | 
            ||
| 502 | $result = $titleAsURL . '-' . $count;  | 
            ||
| 503 | }  | 
            ||
| 504 | self::$used_anchors[$result] = $this->ID;  | 
            ||
| 505 | return $this->anchor = $result;  | 
            ||
| 506 | }  | 
            ||
| 507 | |||
| 508 | /**  | 
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| 509 | * @param string|null $action  | 
            ||
| 510 | * @return string|null  | 
            ||
| 511 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 512 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 513 | */  | 
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| 514 | public function AbsoluteLink($action = null)  | 
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| 515 |     { | 
            ||
| 516 |         if ($page = $this->getPage()) { | 
            ||
| 517 | $link = $page->AbsoluteLink($action) . '#' . $this->getAnchor();  | 
            ||
| 518 | |||
| 519 | return $link;  | 
            ||
| 520 | }  | 
            ||
| 521 | |||
| 522 | return null;  | 
            ||
| 523 | }  | 
            ||
| 524 | |||
| 525 | /**  | 
            ||
| 526 | * @param string|null $action  | 
            ||
| 527 | * @return string  | 
            ||
| 528 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 529 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 530 | */  | 
            ||
| 531 | public function Link($action = null)  | 
            ||
| 532 |     { | 
            ||
| 533 |         if ($page = $this->getPage()) { | 
            ||
| 534 | $link = $page->Link($action) . '#' . $this->getAnchor();  | 
            ||
| 535 | |||
| 536 |             $this->extend('updateLink', $link); | 
            ||
| 537 | |||
| 538 | return $link;  | 
            ||
| 539 | }  | 
            ||
| 540 | |||
| 541 | return null;  | 
            ||
| 542 | }  | 
            ||
| 543 | |||
| 544 | /**  | 
            ||
| 545 | * @param string|null $action  | 
            ||
| 546 | * @return string  | 
            ||
| 547 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 548 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 549 | */  | 
            ||
| 550 | public function PreviewLink($action = null)  | 
            ||
| 551 |     { | 
            ||
| 552 | $action = $action . '?ElementalPreview=' . mt_rand();  | 
            ||
| 553 | $link = $this->Link($action);  | 
            ||
| 554 |         $this->extend('updatePreviewLink', $link); | 
            ||
| 555 | |||
| 556 | return $link;  | 
            ||
| 557 | }  | 
            ||
| 558 | |||
| 559 | /**  | 
            ||
| 560 | * @return boolean  | 
            ||
| 561 | */  | 
            ||
| 562 | public function isCMSPreview()  | 
            ||
| 563 |     { | 
            ||
| 564 |         if (Controller::has_curr()) { | 
            ||
| 565 | $controller = Controller::curr();  | 
            ||
| 566 | |||
| 567 |             if ($controller->getRequest()->requestVar('CMSPreview')) { | 
            ||
| 568 | return true;  | 
            ||
| 569 | }  | 
            ||
| 570 | }  | 
            ||
| 571 | |||
| 572 | return false;  | 
            ||
| 573 | }  | 
            ||
| 574 | |||
| 575 | /**  | 
            ||
| 576 | * @return null|string  | 
            ||
| 577 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 578 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 579 | */  | 
            ||
| 580 | public function CMSEditLink()  | 
            ||
| 581 |     { | 
            ||
| 582 | $relationName = $this->getAreaRelationName();  | 
            ||
| 583 | $page = $this->getPage(true);  | 
            ||
| 584 | |||
| 585 |         if (!$page) { | 
            ||
| 586 | return null;  | 
            ||
| 587 | }  | 
            ||
| 588 | |||
| 589 | $editLinkPrefix = '';  | 
            ||
| 590 |         if (!$page instanceof SiteTree && method_exists($page, 'CMSEditLink')) { | 
            ||
| 591 | $editLinkPrefix = Controller::join_links($page->CMSEditLink(), 'ItemEditForm');  | 
            ||
| 592 |         } else { | 
            ||
| 593 | $editLinkPrefix = Controller::join_links(  | 
            ||
| 594 |                 singleton(CMSPageEditController::class)->Link('EditForm'), | 
            ||
| 595 | $page->ID  | 
            ||
| 596 | );  | 
            ||
| 597 | }  | 
            ||
| 598 | |||
| 599 | $link = Controller::join_links(  | 
            ||
| 600 | $editLinkPrefix,  | 
            ||
| 601 | 'field/' . $relationName . '/item/',  | 
            ||
| 602 | $this->ID  | 
            ||
| 603 | );  | 
            ||
| 604 | |||
| 605 | $link = Controller::join_links(  | 
            ||
| 606 | $link,  | 
            ||
| 607 | 'edit'  | 
            ||
| 608 | );  | 
            ||
| 609 | |||
| 610 |         $this->extend('updateCMSEditLink', $link); | 
            ||
| 611 | |||
| 612 | return $link;  | 
            ||
| 613 | }  | 
            ||
| 614 | |||
| 615 | /**  | 
            ||
| 616 | * Retrieve a elemental area relation for creating cms links  | 
            ||
| 617 | *  | 
            ||
| 618 | * @return int|string The name of a valid elemental area relation  | 
            ||
| 619 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 620 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 621 | */  | 
            ||
| 622 | public function getAreaRelationName()  | 
            ||
| 623 |     { | 
            ||
| 624 | $page = $this->getPage();  | 
            ||
| 625 | |||
| 626 |         if ($page) { | 
            ||
| 627 |             $has_one = $page->config()->get('has_one'); | 
            ||
| 628 | $area = $this->Parent();  | 
            ||
| 629 | |||
| 630 |             foreach ($has_one as $relationName => $relationClass) { | 
            ||
| 631 |                 if ($page instanceof BaseElement && $relationName === 'Parent') { | 
            ||
| 632 | continue;  | 
            ||
| 633 | }  | 
            ||
| 634 |                 if ($relationClass === $area->ClassName && $page->{$relationName}()->ID === $area->ID) { | 
            ||
| 635 | return $relationName;  | 
            ||
| 636 | }  | 
            ||
| 637 | }  | 
            ||
| 638 | }  | 
            ||
| 639 | |||
| 640 | return 'ElementalArea';  | 
            ||
| 641 | }  | 
            ||
| 642 | |||
| 643 | /**  | 
            ||
| 644 | * Sanitise a model class' name for inclusion in a link.  | 
            ||
| 645 | *  | 
            ||
| 646 | * @return string  | 
            ||
| 647 | */  | 
            ||
| 648 | public function sanitiseClassName($class, $delimiter = '-')  | 
            ||
| 649 |     { | 
            ||
| 650 |         return str_replace('\\', $delimiter, $class); | 
            ||
| 651 | }  | 
            ||
| 652 | |||
| 653 | public function unsanitiseClassName($class, $delimiter = '-')  | 
            ||
| 654 |     { | 
            ||
| 655 | return str_replace($delimiter, '\\', $class);  | 
            ||
| 656 | }  | 
            ||
| 657 | |||
| 658 | /**  | 
            ||
| 659 | * @return null|string  | 
            ||
| 660 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 661 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 662 | */  | 
            ||
| 663 | public function getEditLink()  | 
            ||
| 664 |     { | 
            ||
| 665 | return $this->CMSEditLink();  | 
            ||
| 666 | }  | 
            ||
| 667 | |||
| 668 | /**  | 
            ||
| 669 | * @return DBField|null  | 
            ||
| 670 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 671 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 672 | */  | 
            ||
| 673 | public function PageCMSEditLink()  | 
            ||
| 674 |     { | 
            ||
| 675 |         if ($page = $this->getPage()) { | 
            ||
| 676 |             return DBField::create_field('HTMLText', sprintf( | 
            ||
| 677 | '<a href="%s">%s</a>',  | 
            ||
| 678 | $page->CMSEditLink(),  | 
            ||
| 679 | $page->Title  | 
            ||
| 680 | ));  | 
            ||
| 681 | }  | 
            ||
| 682 | |||
| 683 | return null;  | 
            ||
| 684 | }  | 
            ||
| 685 | |||
| 686 | /**  | 
            ||
| 687 | * @return string  | 
            ||
| 688 | */  | 
            ||
| 689 | public function getMimeType()  | 
            ||
| 690 |     { | 
            ||
| 691 | return 'text/html';  | 
            ||
| 692 | }  | 
            ||
| 693 | |||
| 694 | /**  | 
            ||
| 695 | * This can be overridden on child elements to create a summary for display  | 
            ||
| 696 | * in GridFields.  | 
            ||
| 697 | *  | 
            ||
| 698 | * @return string  | 
            ||
| 699 | */  | 
            ||
| 700 | public function getSummary()  | 
            ||
| 701 |     { | 
            ||
| 702 | return '';  | 
            ||
| 703 | }  | 
            ||
| 704 | |||
| 705 | |||
| 706 | /**  | 
            ||
| 707 | * Generate markup for element type icons suitable for use in GridFields.  | 
            ||
| 708 | *  | 
            ||
| 709 | * @return null|DBHTMLText  | 
            ||
| 710 | */  | 
            ||
| 711 | public function getIcon()  | 
            ||
| 712 |     { | 
            ||
| 713 | $data = ArrayData::create([]);  | 
            ||
| 714 | |||
| 715 |         $iconClass = $this->config()->get('icon'); | 
            ||
| 716 |         if ($iconClass) { | 
            ||
| 717 | $data->IconClass = $iconClass;  | 
            ||
| 718 | |||
| 719 | // Add versioned states (rendered as a circle over the icon)  | 
            ||
| 720 |             if ($this->hasExtension(Versioned::class)) { | 
            ||
| 721 | $data->IsVersioned = true;  | 
            ||
| 722 |                 if ($this->isOnDraftOnly()) { | 
            ||
| 723 | $data->VersionState = 'draft';  | 
            ||
| 724 | $data->VersionStateTitle = _t(  | 
            ||
| 725 | 'SilverStripe\\Versioned\\VersionedGridFieldState\\VersionedGridFieldState.ADDEDTODRAFTHELP',  | 
            ||
| 726 | 'Item has not been published yet'  | 
            ||
| 727 | );  | 
            ||
| 728 |                 } elseif ($this->isModifiedOnDraft()) { | 
            ||
| 729 | $data->VersionState = 'modified';  | 
            ||
| 730 | $data->VersionStateTitle = $data->VersionStateTitle = _t(  | 
            ||
| 731 | 'SilverStripe\\Versioned\\VersionedGridFieldState\\VersionedGridFieldState.MODIFIEDONDRAFTHELP',  | 
            ||
| 732 | 'Item has unpublished changes'  | 
            ||
| 733 | );  | 
            ||
| 734 | }  | 
            ||
| 735 | }  | 
            ||
| 736 | |||
| 737 | return $data->renderWith(__CLASS__ . '/PreviewIcon');  | 
            ||
| 738 | }  | 
            ||
| 739 | |||
| 740 | return null;  | 
            ||
| 741 | }  | 
            ||
| 742 | |||
| 743 | /**  | 
            ||
| 744 | * Get a description for this content element, if available  | 
            ||
| 745 | *  | 
            ||
| 746 | * @return string  | 
            ||
| 747 | */  | 
            ||
| 748 | public function getDescription()  | 
            ||
| 749 |     { | 
            ||
| 750 |         $description = $this->config()->uninherited('description'); | 
            ||
| 751 |         if ($description) { | 
            ||
| 752 | return _t(__CLASS__ . '.Description', $description);  | 
            ||
| 753 | }  | 
            ||
| 754 | return '';  | 
            ||
| 755 | }  | 
            ||
| 756 | |||
| 757 | /**  | 
            ||
| 758 | * Generate markup for element type, with description suitable for use in  | 
            ||
| 759 | * GridFields.  | 
            ||
| 760 | *  | 
            ||
| 761 | * @return DBField  | 
            ||
| 762 | */  | 
            ||
| 763 | public function getTypeNice()  | 
            ||
| 764 |     { | 
            ||
| 765 | $description = $this->getDescription();  | 
            ||
| 766 | $desc = ($description) ? ' <span class="element__note"> — ' . $description . '</span>' : '';  | 
            ||
| 767 | |||
| 768 | return DBField::create_field(  | 
            ||
| 769 | 'HTMLVarchar',  | 
            ||
| 770 | $this->getType() . $desc  | 
            ||
| 771 | );  | 
            ||
| 772 | }  | 
            ||
| 773 | |||
| 774 | /**  | 
            ||
| 775 | * @return \SilverStripe\ORM\FieldType\DBHTMLText  | 
            ||
| 776 | */  | 
            ||
| 777 | public function getEditorPreview()  | 
            ||
| 778 |     { | 
            ||
| 779 |         $templates = $this->getRenderTemplates('_EditorPreview'); | 
            ||
| 780 | $templates[] = BaseElement::class . '_EditorPreview';  | 
            ||
| 781 | |||
| 782 | return $this->renderWith($templates);  | 
            ||
| 783 | }  | 
            ||
| 784 | |||
| 785 | /**  | 
            ||
| 786 | * @return Member  | 
            ||
| 787 | */  | 
            ||
| 788 | public function getAuthor()  | 
            ||
| 795 | }  | 
            ||
| 796 | |||
| 797 | /**  | 
            ||
| 798 | * Get a user defined style variant for this element, if available  | 
            ||
| 799 | *  | 
            ||
| 800 | * @return string  | 
            ||
| 801 | */  | 
            ||
| 802 | public function getStyleVariant()  | 
            ||
| 803 |     { | 
            ||
| 804 | $style = $this->Style;  | 
            ||
| 805 |         $styles = $this->config()->get('styles'); | 
            ||
| 806 | |||
| 807 |         if (isset($styles[$style])) { | 
            ||
| 808 | $style = strtolower($style);  | 
            ||
| 809 |         } else { | 
            ||
| 810 | $style = '';  | 
            ||
| 811 | }  | 
            ||
| 812 | |||
| 813 |         $this->extend('updateStyleVariant', $style); | 
            ||
| 814 | |||
| 815 | return $style;  | 
            ||
| 816 | }  | 
            ||
| 817 | |||
| 818 | /**  | 
            ||
| 819 | * @return mixed|null  | 
            ||
| 820 | * @throws \Psr\Container\NotFoundExceptionInterface  | 
            ||
| 821 | * @throws \SilverStripe\ORM\ValidationException  | 
            ||
| 822 | */  | 
            ||
| 823 | public function getPageTitle()  | 
            ||
| 832 | }  | 
            ||
| 833 | |||
| 834 | /**  | 
            ||
| 835 | * @return boolean  | 
            ||
| 836 | */  | 
            ||
| 837 | public function First()  | 
            ||
| 838 |     { | 
            ||
| 839 | return ($this->Parent()->Elements()->first()->ID === $this->ID);  | 
            ||
| 840 | }  | 
            ||
| 841 | |||
| 842 | /**  | 
            ||
| 843 | * @return boolean  | 
            ||
| 844 | */  | 
            ||
| 845 | public function Last()  | 
            ||
| 846 |     { | 
            ||
| 847 | return ($this->Parent()->Elements()->last()->ID === $this->ID);  | 
            ||
| 848 | }  | 
            ||
| 849 | |||
| 850 | /**  | 
            ||
| 851 | * @return boolean  | 
            ||
| 852 | */  | 
            ||
| 853 | public function TotalItems()  | 
            ||
| 854 |     { | 
            ||
| 855 | return $this->Parent()->Elements()->count();  | 
            ||
| 856 | }  | 
            ||
| 857 | |||
| 858 | /**  | 
            ||
| 859 | * Returns the position of the current element.  | 
            ||
| 860 | *  | 
            ||
| 861 | * @return boolean  | 
            ||
| 862 | */  | 
            ||
| 863 | public function Pos()  | 
            ||
| 866 | }  | 
            ||
| 867 | |||
| 868 | /**  | 
            ||
| 869 | * @return boolean  | 
            ||
| 870 | */  | 
            ||
| 871 | public function EvenOdd()  | 
            ||
| 878 |