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<?php |
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/** |
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* @copyright Copyright (c) Flipbox Digital Limited |
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* @license https://github.com/flipboxfactory/craft-element-lists/LICENSE |
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* @link https://github.com/flipboxfactory/craft-element-lists/ |
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*/ |
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namespace flipbox\craft\element\lists\fields; |
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use craft\elements\db\ElementQuery; |
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use craft\elements\db\ElementQueryInterface; |
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use craft\helpers\Db; |
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use flipbox\craft\element\lists\records\Association; |
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use flipbox\craft\ember\helpers\ArrayHelper; |
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/** |
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* @author Flipbox Factory <[email protected]> |
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* @since 2.0.0 |
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* |
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* @property int|null id |
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*/ |
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trait ModifyElementQueryTrait |
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{ |
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/** |
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* @inheritdoc |
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*/ |
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public function modifyElementsQuery(ElementQueryInterface $query, $value) |
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{ |
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if ($value === null || !$query instanceof ElementQuery) { |
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return null; |
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} |
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if ($value === false) { |
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return false; |
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} |
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if (is_array($value)) { |
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$this->modifyElementsQueryForArrayValue($query, $value); |
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return null; |
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} |
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if (is_string($value)) { |
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$this->modifyElementsQueryForStringValue($query, $value); |
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return null; |
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} |
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$this->modifyElementsQueryForTargetValue($query, $value); |
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return null; |
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} |
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/** |
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* @param ElementQuery $query |
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* @param array $value |
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* @return void |
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*/ |
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protected function modifyElementsQueryForArrayValue( |
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ElementQuery $query, |
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array $value |
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) { |
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if (array_key_exists('source', $value)) { |
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$this->modifyElementsQueryForStringValue( |
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$query, |
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$value['source'] ?: ':empty:', |
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ArrayHelper::remove($value, 'sourceSiteId') |
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); |
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return null; |
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} |
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$this->modifyElementsQueryForTargetValue($query, $value); |
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} |
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/** |
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* @param ElementQuery $query |
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* @param string $value |
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* @param $siteId |
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*/ |
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protected function modifyElementsQueryForStringValue( |
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ElementQuery $query, |
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string $value, |
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$siteId = null |
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) { |
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if ($value === 'not :empty:') { |
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$value = ':notempty:'; |
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} |
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if ($value === ':notempty:' || $value === ':empty:') { |
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$this->modifyElementsQueryForEmptyValue($query, $value); |
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return; |
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} |
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$this->modifyElementsQueryForTargetValue($query, $value, $siteId); |
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} |
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/** |
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* @param ElementQuery $query |
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* @param $sourceId |
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* @param $siteId |
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*/ |
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protected function modifyElementsQueryForTargetValue( |
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ElementQuery $query, |
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$sourceId, |
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$siteId = null |
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) { |
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$alias = Association::tableAlias(); |
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$name = Association::tableName(); |
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$joinTable = "{$name} {$alias}"; |
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$query->query->innerJoin($joinTable, "[[{$alias}.targetId]] = [[subquery.elementsId]]"); |
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$query->subQuery->innerJoin($joinTable, "[[{$alias}.targetId]] = [[elements.id]]"); |
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$query->subQuery->addSelect(["{$alias}.sortOrder"]); |
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$query->subQuery->andWhere( |
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Db::parseParam($alias . '.fieldId', $this->id) |
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); |
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$query->subQuery->andWhere( |
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Db::parseParam($alias . '.sourceId', $sourceId) |
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); |
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if ($this->localizeRelations && $siteId) { |
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$query->subQuery->andWhere( |
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Db::parseParam($alias . '.sourceSiteId', $siteId) |
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); |
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} |
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$query->query->distinct(true); |
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} |
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/** |
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* @param ElementQuery $query |
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* @param string $value |
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*/ |
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protected function modifyElementsQueryForEmptyValue( |
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ElementQuery $query, |
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string $value |
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) { |
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$alias = Association::tableAlias(); |
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$name = Association::tableName(); |
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$operator = ($value === ':notempty:' ? '!=' : '='); |
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$query->subQuery->andWhere( |
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"(select count([[{$alias}.targetId]]) from " . |
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$name . |
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" {{{$alias}}} where [[{$alias}.targetId" . |
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"]] = [[elements.id]] and [[{$alias}.fieldId]] = {$this->id}) {$operator} 0" |
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); |
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} |
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} |
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flipboxfactory /
craft-element-lists
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: