2008-09-26 04:22:51 +02:00
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<?php
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/**
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* Special ComplexTableField for editing a many_many relation.
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* @package forms
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* @subpackage fields-relational
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*/
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class ManyManyComplexTableField extends HasManyComplexTableField {
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private $manyManyParentClass;
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public $itemClass = 'ManyManyComplexTableField_Item';
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function __construct($controller, $name, $sourceClass, $fieldList, $detailFormFields = null, $sourceFilter = "", $sourceSort = "", $sourceJoin = "") {
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parent::__construct($controller, $name, $sourceClass, $fieldList, $detailFormFields, $sourceFilter, $sourceSort, $sourceJoin);
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$classes = array_reverse(ClassInfo::ancestry($this->controller->ClassName));
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foreach($classes as $class) {
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$singleton = singleton($class);
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$manyManyRelations = $singleton->uninherited('many_many', true);
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if(isset($manyManyRelations) && array_key_exists($this->name, $manyManyRelations)) {
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$this->manyManyParentClass = $class;
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$manyManyTable = $class . '_' . $this->name;
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break;
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}
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$belongsManyManyRelations = $singleton->uninherited( 'belongs_many_many', true );
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if( isset( $belongsManyManyRelations ) && array_key_exists( $this->name, $belongsManyManyRelations ) ) {
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$this->manyManyParentClass = $class;
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$manyManyTable = $belongsManyManyRelations[$this->name] . '_' . $this->name;
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break;
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}
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}
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$tableClasses = ClassInfo::dataClassesFor($this->sourceClass);
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$source = array_shift($tableClasses);
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$sourceField = $this->sourceClass;
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if($this->manyManyParentClass == $sourceField)
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$sourceField = 'Child';
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$parentID = $this->controller->ID;
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$this->sourceJoin .= " LEFT JOIN `$manyManyTable` ON (`$source`.`ID` = `{$sourceField}ID` AND `{$this->manyManyParentClass}ID` = '$parentID')";
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$this->joinField = 'Checked';
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}
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function getQuery($limitClause = null) {
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if($this->customQuery) {
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$query = $this->customQuery;
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$query->select[] = "{$this->sourceClass}.ID AS ID";
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$query->select[] = "{$this->sourceClass}.ClassName AS ClassName";
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$query->select[] = "{$this->sourceClass}.ClassName AS RecordClassName";
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}
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else {
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$query = singleton($this->sourceClass)->extendedSQL($this->sourceFilter, $this->sourceSort, $limitClause, $this->sourceJoin);
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// Add more selected fields if they are from joined table.
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$SNG = singleton($this->sourceClass);
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foreach($this->FieldList() as $k => $title) {
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if(! $SNG->hasField($k) && ! $SNG->hasMethod('get' . $k))
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$query->select[] = $k;
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}
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$parent = $this->controller->ClassName;
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$query->select[] = "IF(`{$this->manyManyParentClass}ID` IS NULL, '0', '1') AS Checked";
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}
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return clone $query;
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}
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function getParentIdName($parentClass, $childClass) {
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return $this->getParentIdNameRelation($parentClass, $childClass, 'many_many');
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}
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function ExtraData() {
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$items = array();
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foreach($this->unpagedSourceItems as $item) {
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if($item->{$this->joinField})
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$items[] = $item->ID;
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}
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$list = implode(',', $items);
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$inputId = $this->id() . '_' . $this->htmlListEndName;
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return <<<HTML
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<input id="$inputId" name="{$this->name}[{$this->htmlListField}]" type="hidden" value="$list"/>
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HTML;
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}
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}
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/**
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* One record in a {@link ManyManyComplexTableField}.
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* @package forms
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* @subpackage fields-relational
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*/
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class ManyManyComplexTableField_Item extends ComplexTableField_Item {
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function MarkingCheckbox() {
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$name = $this->parent->Name() . '[]';
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if($this->parent->IsReadOnly)
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return "<input class=\"checkbox\" type=\"checkbox\" name=\"$name\" value=\"{$this->item->ID}\" disabled=\"disabled\"/>";
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else if($this->item->{$this->parent->joinField})
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return "<input class=\"checkbox\" type=\"checkbox\" name=\"$name\" value=\"{$this->item->ID}\" checked=\"checked\"/>";
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else
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return "<input class=\"checkbox\" type=\"checkbox\" name=\"$name\" value=\"{$this->item->ID}\"/>";
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}
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}
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?>
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