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<?php |
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/** |
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* Plugin: SEOToolbox |
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* Author: Dylan Grech |
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* Copyright: 2016 |
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* |
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* Automated Link is a dataobject that contains all the data |
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* about a link that should be created automatically to a page |
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* |
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* @method SiteTree|null Page() |
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* @property string Phrase |
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* @property string TitleTag |
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* @property string AnchorTag |
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* @property boolean NewWindow |
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* @property boolean NoFollow |
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* @property boolean SelfLinking |
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* @property boolean CaseSensitive |
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* @property int MaxLinksPerPage |
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* @property int Priority |
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* @property int PageID |
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*/ |
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class AutomatedLink extends DataObject implements PermissionProvider { |
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private static $db = array( |
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'Phrase' => 'VARCHAR(255)', |
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'TitleTag' => 'VARCHAR(255)', |
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'AnchorTag' => 'VARCHAR(255)', |
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'NewWindow' => 'Boolean', |
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'NoFollow' => 'Boolean', |
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'SelfLinking' => 'Boolean', |
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'CaseSensitive' => 'Boolean', |
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'MaxLinksPerPage' => 'INT', |
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'Priority' => 'Int' |
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); |
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private static $defaults = array( |
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'MaxLinksPerPage' => 10 |
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); |
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private static $default_sort = 'Priority'; |
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private static $has_one = array( |
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'Page' => 'SiteTree' |
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); |
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private static $summary_fields = array( 'Phrase', 'PointsTo' ); |
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private static $searchable_fields = array( 'Phrase' ); |
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private static $singular_name = 'Automated Link'; |
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private static $plural_name = 'Automated Links'; |
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private static $parsableFields = array(); |
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/** |
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* Get the url of the page linked to this object |
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* |
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* @return string |
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*/ |
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public function PointsTo(){ |
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return $this->Page()->Link(); |
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} |
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/** |
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* Return the phrase set for this object |
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* |
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* @return string |
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*/ |
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public function Title(){ |
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return $this->Phrase; |
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} |
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/** |
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* Return the rendered version of this object |
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* |
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* @return String |
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*/ |
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public function forTemplate(){ |
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return $this->getHTML(); |
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} |
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public function canView( $member = false ){ |
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return Permission::check('AUTOMATEDLINK_VIEW'); |
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} |
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public function canEdit( $member = false ){ |
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return Permission::check('AUTOMATEDLINK_EDIT'); |
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} |
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public function canDelete( $member = false ){ |
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return Permission::check('AUTOMATEDLINK_DELETE'); |
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} |
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public function canCreate( $member = false ){ |
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return Permission::check('AUTOMATEDLINK_CREATE'); |
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} |
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public function providePermissions() { |
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return array( |
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'AUTOMATEDLINK_VIEW' => 'View Automated Links', |
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'AUTOMATEDLINK_EDIT' => 'Edit Automated Links', |
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'AUTOMATEDLINK_DELETE' => 'Delete Automated Links', |
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'AUTOMATEDLINK_CREATE' => 'Create Automated Links', |
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); |
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} |
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public function requireDefaultRecords(){ |
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parent::requireDefaultRecords(); |
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// Update all links to redirector pages during dev/build |
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foreach( self::get() as $link ) { |
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$link->CheckAndUpdateDestination( true ); |
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} |
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} |
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/** |
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* Returns the HTML Representation of this object |
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* |
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* @param String $originalPhrase |
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* @return String |
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*/ |
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public function getHTML($originalPhrase = NULL) { |
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$link = ($this->PageID) ? $this->Page()->Link() : '#'; |
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$title = ($this->TitleTag) ? "title='{$this->TitleTag}'" : ''; |
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$nofollow = ($this->NoFollow) ? 'rel="nofollow"' : ''; |
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$newtab = ($this->NewWindow) ? 'target="_blank"' : ''; |
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$anchor = ($originalPhrase) ? $originalPhrase : $this->Phrase; |
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$link = ($this->AnchorTag) ? rtrim($link, '#').'#'.$this->AnchorTag : $link; |
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return "<a href=\"$link\" $title $nofollow $newtab data-id=\"{$this->ID}\">{$anchor}</a>"; |
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} |
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public function getCMSFields() { |
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$fields = FieldList::create(TabSet::create('Root')); |
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$fields->addFieldsToTab('Root.LinkSettings', array( |
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TextField::create('Phrase', 'Phrase to search for', $this->Phrase, 255), |
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TextField::create('TitleTag', 'Title Tag', $this->TitleTag, 255), |
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TextField::create('AnchorTag', 'Anchor Tag(#)', $this->AnchorTag, 255), |
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FieldGroup::create( |
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CheckboxField::create('NoFollow'), |
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CheckboxField::create('NewWindow'), |
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CheckboxField::create('SelfLinking', 'Allow page to link to itself'), |
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CheckboxField::create('CaseSensitive', 'Match the case of the phrase') |
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), |
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NumericField::create('MaxLinksPerPage', 'Maximum amount of this link to be created on a single page( 0 = unlimited )'), |
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TreeDropdownField::create('PageID', 'Page to link to', 'SiteTree') |
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)); |
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$settings = GlobalAutoLinkSettings::get_current(); |
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if ($settings) { |
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$fields->addFieldsToTab('Root.Global', array( |
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NumericField::create( |
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'Global_MaxLinksPerPage', |
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'Maximum amount of links a single page can have ( 0 = unlimited )', |
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$settings->MaxLinksPerPage |
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), |
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TextField::create( |
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'Global_ExcludeTags', |
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'Do not include links into these HTML Tags ( comma seperated )', |
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$settings->ExcludeTags |
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), |
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TextField::create( |
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'Global_AddTo', |
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'Page types where links should be created in ( leave blank for all page types )', |
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$settings->AddTo ), |
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TextField::create( |
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'Global_IncludeIn', |
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'Include Links into these fields ( comma seperated & field must support html injection )', |
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$settings->IncludeIn |
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) |
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)); |
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} |
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return $fields; |
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} |
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public function getCMSValidator() { |
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return new RequiredFields(array('Phrase', 'PageID')); |
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} |
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/** |
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* Save the Global Settings into the |
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* Global Auto Link Settings Object |
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* |
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* @return void |
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*/ |
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public function onBeforeWrite() { |
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parent::onBeforeWrite(); |
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$settings = GlobalAutoLinkSettings::get_current(); |
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if ($settings) { |
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foreach ($this->getChangedFields() as $field => $value) { |
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if (strpos($field, 'Global_') === 0 && isset($value['after'])) { |
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$field = str_replace('Global_', '', $field); |
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$settings->$field = $value['after']; |
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} |
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} |
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$settings->write(); |
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} |
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$this->CheckAndUpdateDestination(); |
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} |
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/** |
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* Checks if the destination is a redirector page if so |
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* it updates it to the destination of the redirector page |
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* |
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* @Boolean $write - Write the changes if any |
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* @return void |
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*/ |
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public function CheckAndUpdateDestination( $write = false ){ |
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$this->extend('beforeCheckAndUpdateDestination', $write); |
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if( $this->PageID && $this->Page() && |
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$this->Page()->ClassName == 'RedirectorPage' && |
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$this->Page()->LinkToID && $this->Page()->RedirectionType == 'Internal' ) |
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{ |
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$this->PageID = $this->Page()->LinkToID; |
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if( $write ) { |
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$this->write(); |
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} |
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} |
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} |
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/** |
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* Checks if the field is parable |
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* |
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* @param SiteTree $page |
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* @param String $field |
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* @return Boolean |
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*/ |
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public static function isFieldParsable(SiteTree $page, $field) { |
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if (!isset(self::$parsableFields[$page->ID]) || !isset(self::$parsableFields[$page->ID][$field])) { |
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$fields = self::getAllDatabaseFields($page->ClassName); |
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self::$parsableFields[$page->ID][$field] = |
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(Boolean) array_key_exists($field, $fields) && strtolower($fields[$field]) === 'htmltext' && $page->$field; |
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} |
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return self::$parsableFields[$page->ID][$field]; |
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} |
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/** |
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* Checks if this link can be added to the provided |
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* page and field |
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* |
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* @param ContentController $controller |
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* @return Boolean |
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*/ |
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public function canBeAdded( ContentController $controller ){ |
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return ( $this->SelfLinking || $controller->ID != $this->PageID ); |
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} |
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/** |
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* Turn the string passed into a DOMDocument object |
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* |
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* @param string $html |
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* @return DOMDocument |
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*/ |
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public static function constructDOMDocument($html){ |
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if( class_exists( 'HTML5_Parser' ) ){ |
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$html5 = HTML5_Parser::parse( $html ); |
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if($html5 instanceof DOMNodeList){ |
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$dom = new DOMDocument(); |
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while($html5->length > 0) { |
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$dom->appendChild($html5->item(0)); |
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} |
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}else{ |
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$dom = $html5; |
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} |
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} else{ |
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$dom = new DOMDocument(); |
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$dom->loadHTML( $html ); |
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} |
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return $dom; |
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} |
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/** |
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* Returns an array with all the database fields $class has |
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* |
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* @param string $class |
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* @return array |
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*/ |
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public static function getAllDatabaseFields($class){ |
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$fields = array(); |
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foreach (ClassInfo::ancestry($class, true) as $ancestor){ |
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$fields = array_merge($fields, (array) DataObject::database_fields($ancestor)); |
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} |
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return $fields; |
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} |
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} |
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