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<?php |
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use SilverStripe\Forms\TreeDropdownField; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\Core\Convert; |
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class ExternalTreeDropdownField extends TreeDropdownField |
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{ |
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/** |
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* Should children be selectable when this tree is shown |
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* |
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* @var boolean |
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*/ |
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protected $showChildren; |
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/** |
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* @param string $name the field name |
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* @param string $title the field label |
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* @param string $souceClass the class to display in the tree, must have the "Hierachy" extension. |
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* @param string $keyField to field on the source class to save as the field value (default ID). |
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* @param string $labelField the field name to show as the human-readable value on the tree (default Title). |
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* @param boolean $showChildren whether children should be selectable |
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*/ |
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public function __construct($name, $title = null, $sourceObject = 'Group', $keyField = 'ID', $labelField = 'Title', $showChildren=true) |
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{ |
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parent::__construct($name, $title, $sourceObject, $keyField, $labelField); |
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$this->showChildren = $showChildren; |
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} |
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/** |
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* Override to allow for compound IDs |
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* |
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* @param mixed $ID |
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*/ |
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public function setTreeBaseID($ID) |
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{ |
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$this->baseID = $ID; |
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} |
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/** |
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* Get the object where the $keyField is equal to a certain value |
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* |
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* @param string|int $key |
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* @return DataObject |
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*/ |
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protected function objectForKey($key) |
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{ |
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if ($this->keyField == 'ID') { |
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return ExternalContent::getDataObjectFor($key); |
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} else { |
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return DataObject::get_one($this->sourceObject, "\"{$this->keyField}\" = '" . Convert::raw2sql($key) . "'"); |
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} |
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} |
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} |
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