58 lines
2.3 KiB
PHP
58 lines
2.3 KiB
PHP
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<?php
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namespace common\models\relation_presenters;
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use common\modules\abiturient\models\drafts\DraftsManager;
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use yii\db\ActiveRecord;
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use yii\helpers\ArrayHelper;
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use yii\web\NotFoundHttpException;
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class ManyToManyThroughModelRelationPresenter extends ManyToManyRelationPresenter
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{
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public $via_model;
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public function __construct(string $relation_label, $config)
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{
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parent::__construct($relation_label, $config);
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$this->via_table = $this->via_model::tableName();
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}
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protected function getLinkProviders(ActiveRecord $new_parent, ActiveRecord $old_parent, ActiveRecord $old_child): array
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{
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DraftsManager::ensurePersisted($new_parent);
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[$parent_attrs_provider, $child_attrs_provider, $mediator_provider] = parent::getLinkProviders($new_parent, $old_parent, $old_child);
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$old_junction_records = $this->via_model::find()
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->andWhere([
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$this->via_table_parent_column => $old_parent->{$this->parent_column_name},
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$this->via_table_child_column => $old_child->{$this->child_column_name},
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])
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->all();
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if (!$old_junction_records) {
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throw new NotFoundHttpException('Не удалось найти связующую таблицу');
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}
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$mediator_provider = function (ActiveRecord $child) use ($old_junction_records, $new_parent) {
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DraftsManager::ensurePersisted($child);
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foreach ($old_junction_records as $old_junction_record) {
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$junction_attrs = DraftsManager::excludeIgnoredProps($old_junction_record);
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$junction_data = ArrayHelper::merge(
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$junction_attrs,
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[
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$this->via_table_parent_column => $new_parent->{$this->parent_column_name},
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$this->via_table_child_column => $child->{$this->child_column_name},
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]
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);
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$already_linked = $this->via_model::find()->andWhere($junction_data)->exists();
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if (!$already_linked) {
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$tmp = new $this->via_model();
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DraftsManager::setModelAttributes($tmp, $junction_data);
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}
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}
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return [];
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};
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return [$parent_attrs_provider, $child_attrs_provider, $mediator_provider];
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}
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}
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