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<?php |
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/** |
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* BEdita, API-first content management framework |
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* Copyright 2016 ChannelWeb Srl, Chialab Srl |
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* |
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* This file is part of BEdita: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* See LICENSE.LGPL or <http://gnu.org/licenses/lgpl-3.0.html> for more details. |
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*/ |
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namespace BEdita\Core\Model\Table; |
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use BEdita\Core\Exception\BadFilterException; |
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use BEdita\Core\Model\Validation\ObjectTypesValidator; |
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use BEdita\Core\ORM\Rule\IsUniqueAmongst; |
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use Cake\Cache\Cache; |
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use Cake\Core\App; |
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use Cake\Database\Expression\Comparison; |
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use Cake\Database\Expression\QueryExpression; |
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use Cake\Database\Schema\TableSchema; |
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use Cake\Datasource\EntityInterface; |
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use Cake\Datasource\Exception\RecordNotFoundException; |
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use Cake\Event\Event; |
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use Cake\Http\Exception\BadRequestException; |
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use Cake\Http\Exception\ForbiddenException; |
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use Cake\ORM\Query; |
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use Cake\ORM\RulesChecker; |
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use Cake\ORM\Table; |
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use Cake\ORM\TableRegistry; |
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use Cake\Utility\Inflector; |
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/** |
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* ObjectTypes Model |
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* |
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* @property \Cake\ORM\Association\HasMany $Objects |
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* @property \Cake\ORM\Association\HasMany $Properties |
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* @property \Cake\ORM\Association\BelongsToMany $LeftRelations |
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* @property \Cake\ORM\Association\BelongsToMany $RightRelations |
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* @method \BEdita\Core\Model\Entity\ObjectType newEntity($data = null, array $options = []) |
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* @method \BEdita\Core\Model\Entity\ObjectType[] newEntities(array $data, array $options = []) |
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* @method \BEdita\Core\Model\Entity\ObjectType|bool save(\Cake\Datasource\EntityInterface $entity, $options = []) |
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* @method \BEdita\Core\Model\Entity\ObjectType patchEntity(\Cake\Datasource\EntityInterface $entity, array $data, array $options = []) |
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* @method \BEdita\Core\Model\Entity\ObjectType[] patchEntities($entities, array $data, array $options = []) |
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* @method \BEdita\Core\Model\Entity\ObjectType findOrCreate($search, callable $callback = null, $options = []) |
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* @mixin \Cake\ORM\Behavior\TreeBehavior |
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* @since 4.0.0 |
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*/ |
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class ObjectTypesTable extends Table |
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{ |
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/** |
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* Cache config name for object types. |
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* |
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* @var string |
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*/ |
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public const CACHE_CONFIG = '_bedita_object_types_'; |
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/** |
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* Default parent id 1 for `objects`. |
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* |
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* @var int |
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*/ |
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public const DEFAULT_PARENT_ID = 1; |
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/** |
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* Default `plugin` if not specified. |
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* |
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* @var string |
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*/ |
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public const DEFAULT_PLUGIN = 'BEdita/Core'; |
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/** |
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* Default `model` if not specified. |
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* |
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* @var string |
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*/ |
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public const DEFAULT_MODEL = 'Objects'; |
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/** |
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* @inheritDoc |
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*/ |
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protected $_validatorClass = ObjectTypesValidator::class; |
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/** |
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* {@inheritDoc} |
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* |
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* @codeCoverageIgnore |
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*/ |
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public function initialize(array $config): void |
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{ |
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parent::initialize($config); |
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$this->setTable('object_types'); |
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$this->setPrimaryKey('id'); |
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$this->setDisplayField('name'); |
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$this->hasMany('Objects', [ |
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'foreignKey' => 'object_type_id', |
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'className' => 'Objects', |
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]); |
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$this->hasMany('Properties', [ |
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'foreignKey' => 'property_type_id', |
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'className' => 'Properties', |
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'dependent' => true, |
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]); |
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$through = TableRegistry::getTableLocator()->get('LeftRelationTypes', ['className' => 'RelationTypes']); |
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$this->belongsToMany('LeftRelations', [ |
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'className' => 'Relations', |
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'through' => $through, |
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'foreignKey' => 'object_type_id', |
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'targetForeignKey' => 'relation_id', |
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'conditions' => [ |
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$through->aliasField('side') => 'left', |
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], |
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]); |
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$through = TableRegistry::getTableLocator()->get('RightRelationTypes', ['className' => 'RelationTypes']); |
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$this->belongsToMany('RightRelations', [ |
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'className' => 'Relations', |
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'through' => $through, |
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'foreignKey' => 'object_type_id', |
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'targetForeignKey' => 'relation_id', |
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'conditions' => [ |
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$through->aliasField('side') => 'right', |
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], |
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]); |
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$this->belongsTo('Parent', [ |
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'foreignKey' => 'parent_id', |
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'className' => 'ObjectTypes', |
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'targetTable' => $this, |
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]); |
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$this->addBehavior('Timestamp'); |
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$this->addBehavior('Tree', [ |
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'left' => 'tree_left', |
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'right' => 'tree_right', |
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]); |
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$this->addBehavior('BEdita/Core.Searchable', [ |
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'fields' => [ |
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'name' => 10, |
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'singular' => 10, |
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'description' => 5, |
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], |
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]); |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @codeCoverageIgnore |
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*/ |
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public function buildRules(RulesChecker $rules): RulesChecker |
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{ |
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$rules |
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->add(new IsUniqueAmongst(['name' => ['name', 'singular']]), '_isUniqueAmongst', [ |
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'errorField' => 'name', |
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'message' => __d('cake', 'This value is already in use'), |
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]) |
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->add(new IsUniqueAmongst(['singular' => ['name', 'singular']]), '_isUniqueAmongst', [ |
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'errorField' => 'singular', |
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'message' => __d('cake', 'This value is already in use'), |
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]); |
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return $rules; |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @codeCoverageIgnore |
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*/ |
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protected function _initializeSchema(TableSchema $schema) |
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{ |
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$schema->setColumnType('associations', 'json'); |
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$schema->setColumnType('hidden', 'json'); |
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$schema->setColumnType('translation_rules', 'json'); |
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return $schema; |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @return \BEdita\Core\Model\Entity\ObjectType |
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*/ |
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public function get($primaryKey, $options = []): EntityInterface |
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{ |
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if (is_string($primaryKey) && !is_numeric($primaryKey)) { |
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$allTypes = array_flip( |
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$this->find('list') |
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->cache('map', self::CACHE_CONFIG) |
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->toArray() |
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); |
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$allTypes += array_flip( |
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$this->find('list', ['valueField' => 'singular']) |
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->cache('map_singular', self::CACHE_CONFIG) |
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->toArray() |
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); |
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$primaryKey = Inflector::underscore($primaryKey); |
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if (!isset($allTypes[$primaryKey])) { |
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throw new RecordNotFoundException(sprintf( |
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'Record not found in table "%s"', |
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$this->getTable() |
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)); |
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} |
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$primaryKey = $allTypes[$primaryKey]; |
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} |
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if (empty($options)) { |
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$options = [ |
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'key' => sprintf('id_%d_rel', $primaryKey), |
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'cache' => self::CACHE_CONFIG, |
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'contain' => ['LeftRelations.RightObjectTypes', 'RightRelations.LeftObjectTypes'], |
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]; |
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} |
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return parent::get($primaryKey, $options); |
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} |
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/** |
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* Set default `parent_id`, `plugin` and `model` on creation if missing. |
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* Prevent delete if: |
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* - type is abstract and a subtype exists |
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* - is a `core_type`, you may set `enabled` false in this case |
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* |
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* Controls are performed here insted of `beforeSave()` or `beforeDelete()` |
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* in order to be executed before corresponding methods in `TreeBehavior`. |
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* |
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* @param \Cake\Event\Event $event The event dispatched |
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* @param \Cake\Datasource\EntityInterface $entity The entity to save |
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* @return void |
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* @throws \Cake\Http\Exception\ForbiddenException if operation on entity is not allowed |
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*/ |
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public function beforeRules(Event $event, EntityInterface $entity) |
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{ |
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if ($entity->isNew()) { |
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if (empty($entity->get('parent_id'))) { |
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$entity->set('parent_id', self::DEFAULT_PARENT_ID); |
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} |
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if (empty($entity->get('table'))) { |
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$entity->set('table', self::DEFAULT_PLUGIN . '.' . self::DEFAULT_MODEL); |
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} |
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} |
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if ($event->getData('operation') === 'delete') { |
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if ($entity->get('is_abstract') && $this->childCount($entity) > 0) { |
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throw new ForbiddenException(__d('bedita', 'Abstract type with existing subtypes')); |
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} |
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if ($entity->get('core_type')) { |
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throw new ForbiddenException(__d('bedita', 'Core types are not removable')); |
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} |
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} |
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if ($entity->isDirty('parent_id') && $this->objectsExist($entity->get('id'))) { |
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throw new ForbiddenException(__d('bedita', 'Parent type change forbidden: objects of this type exist')); |
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} |
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} |
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/** |
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* Invalidate cache after saving an object type. |
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* Recover Nested Set Model tree structure (tree_left, tree_right) |
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* |
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* @return void |
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*/ |
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public function afterSave() |
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{ |
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Cache::clear(false, self::CACHE_CONFIG); |
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} |
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/** |
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* Forbidden operations: |
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* - `is_abstract` set to `true` if at least an object of this type exists |
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* - `is_abstract` set to `false` if a subtype exist. |
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* - `enabled` is set to false and objects of this type or subtypes exist |
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* - `table` is not a valid table model class |
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* |
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* @param \Cake\Event\Event $event The beforeSave event that was fired |
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* @param \Cake\Datasource\EntityInterface $entity The entity that is going to be saved |
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* @return void |
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* @throws \Cake\Http\Exception\ForbiddenException|\Cake\Http\Exception\BadRequestException if entity is not saveable |
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*/ |
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public function beforeSave(Event $event, EntityInterface $entity) |
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{ |
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if ($entity->isDirty('is_abstract')) { |
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if ($entity->get('is_abstract') && $this->objectsExist($entity->get('id'))) { |
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throw new ForbiddenException(__d('bedita', 'Setting as abstract forbidden: objects of this type exist')); |
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} elseif (!$entity->get('is_abstract') && $this->childCount($entity) > 0) { |
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throw new ForbiddenException(__d('bedita', 'Setting as not abstract forbidden: subtypes exist')); |
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} |
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} |
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if ($entity->isDirty('enabled') && !$entity->get('enabled')) { |
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if ($this->objectsExist($entity->get('id'))) { |
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throw new ForbiddenException(__d('bedita', 'Type disable forbidden: objects of this type exist')); |
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} elseif ($this->childCount($entity) > 0) { |
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throw new ForbiddenException(__d('bedita', 'Type disable forbidden: subtypes exist')); |
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} |
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} |
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if ($entity->isDirty('table') && !App::className($entity->get('table'), 'Model/Table', 'Table')) { |
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throw new BadRequestException(__d('bedita', '"{0}" is not a valid model table name', [$entity->get('table')])); |
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} |
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} |
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/** |
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* Check if objects of a certain type id exist |
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* |
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* @param int $typeId Object type id |
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* @return bool True if at least an object exists, false otherwise |
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*/ |
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protected function objectsExist($typeId) |
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{ |
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return TableRegistry::getTableLocator()->get('Objects')->exists(['object_type_id' => $typeId]); |
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} |
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/** |
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* Don't allow delete actions if at least an object of this type exists. |
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* |
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* @param \Cake\Event\Event $event The beforeDelete event that was fired |
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* @param \Cake\Datasource\EntityInterface $entity The entity that is going to be deleted |
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* @return void |
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* @throws \Cake\Http\Exception\ForbiddenException if entity is not deletable |
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*/ |
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public function beforeDelete(Event $event, EntityInterface $entity) |
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{ |
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if ($this->objectsExist($entity->get('id'))) { |
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throw new ForbiddenException(__d('bedita', 'Objects of this type exist')); |
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} |
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} |
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/** |
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* Invalidate cache after deleting an object type. |
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* |
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* @return void |
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*/ |
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public function afterDelete() |
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{ |
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Cache::clear(false, self::CACHE_CONFIG); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function findAll(Query $query, array $options): Query |
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{ |
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return $query->contain(['LeftRelations', 'RightRelations']); |
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} |
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/** |
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* Find object types having a parent by `name` or `id` |
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* |
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* @param \Cake\ORM\Query $query Query object. |
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* @param array $options Additional options. The first element containing `id` or `name` is required. |
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* @return \Cake\ORM\Query |
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* @throws \BEdita\Core\Exception\BadFilterException When missing required parameters. |
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*/ |
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public function findParent(Query $query, array $options) |
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{ |
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if (empty($options[0])) { |
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throw new BadFilterException(__d('bedita', 'Missing required parameter "{0}"', 'parent')); |
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} |
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$parentId = $options[0]; |
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if (!is_numeric($parentId)) { |
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$parentId = $this->get($parentId)->id; |
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} |
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return $query->where([$this->aliasField('parent_id') => $parentId]); |
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} |
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/** |
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* Find allowed object types by relation name and side. |
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* |
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* This finder returns a list of object types that are allowed for the |
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* relation specified by the required option `name`. You can specify the |
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* side of the relation you want to retrieve allowed object types for by |
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* passing an additional option `side` (default: `'right'`). |
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* |
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* If the specified relation name is actually the name of an inverse relation, |
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* this finder automatically takes care of "swapping" sides, always returning |
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* correct results. |
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* |
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* ### Example |
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* |
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* ```php |
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* // Find object types allowed on the "right" side: |
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* TableRegistry::getTableLocator()->get('ObjectTypes') |
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* ->find('byRelation', ['name' => 'my_relation']); |
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* |
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* // Find a list of object type names allowed on the "left" side of the inverse relation: |
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* TableRegistry::getTableLocator()->get('ObjectTypes') |
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* ->find('byRelation', ['name' => 'my_inverse_relation', 'side' => 'left']) |
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* ->find('list') |
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* ->toArray(); |
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* |
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* // Include also descendants of the allowed object types (e.g.: return **Images** whereas **Media** are allowed): |
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* TableRegistry::getTableLocator()->get('ObjectTypes') |
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* ->find('byRelation', ['name' => 'my_relation', 'descendants' => true]); |
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* ``` |
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* |
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* @param \Cake\ORM\Query $query Query object. |
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* @param array $options Additional options. The `name` key is required, while `side` is optional |
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* and assumed to be `'right'` by default. |
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* @return \Cake\ORM\Query |
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* @throws \LogicException When missing required parameters. |
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*/ |
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protected function findByRelation(Query $query, array $options = []) |
408
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{ |
409
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if (empty($options['name'])) { |
410
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throw new \LogicException(__d('bedita', 'Missing required parameter "{0}"', 'name')); |
411
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} |
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$name = Inflector::underscore($options['name']); |
413
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414
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$leftField = 'inverse_name'; |
415
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$rightField = 'name'; |
416
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if (!empty($options['side']) && $options['side'] !== 'right') { |
417
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$leftField = 'name'; |
418
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$rightField = 'inverse_name'; |
419
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} |
420
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|
421
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// Build sub-queries to find object-types that lay on the left and right side of searched relationship, respectively. |
422
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$leftSubQuery = $this->find() |
423
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->innerJoinWith('LeftRelations', function (Query $query) use ($name, $leftField) { |
424
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return $query->where(function (QueryExpression $exp) use ($name, $leftField) { |
425
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return $exp->eq($this->LeftRelations->aliasField($leftField), $name); |
426
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}); |
427
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}); |
428
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$rightSubQuery = $this->find() |
429
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->innerJoinWith('RightRelations', function (Query $query) use ($name, $rightField) { |
430
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return $query->where(function (QueryExpression $exp) use ($name, $rightField) { |
431
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return $exp->eq($this->RightRelations->aliasField($rightField), $name); |
432
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}); |
433
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}); |
434
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|
435
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|
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// Conditions builder that filters only object types returned by one of the two sub-queries. |
436
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|
|
// This could be achieved more efficiently using two left joins, but if we need to find also |
437
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|
|
// descendants it's simpler done this way. |
438
|
|
|
$conditionsBuilder = function (QueryExpression $exp) use ($leftSubQuery, $rightSubQuery) { |
439
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|
|
return $exp->or(function (QueryExpression $exp) use ($leftSubQuery, $rightSubQuery) { |
440
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|
|
return $exp |
441
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|
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->in($this->aliasField('id'), $leftSubQuery->select(['id'])) |
442
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|
|
->in($this->aliasField('id'), $rightSubQuery->select(['id'])); |
443
|
|
|
}); |
444
|
|
|
}; |
445
|
|
|
|
446
|
|
|
if (!empty($options['descendants'])) { // We don't need only explicitly linked object types, but also their descendants! |
447
|
|
|
// Obtain Nested-Set-Model left and right counters for the explicitly-linked object types, that are obtained |
448
|
|
|
// using the `$conditionsBuilder` built before. |
449
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|
|
$nsmCounters = $this->find() |
450
|
|
|
->select(['tree_left', 'tree_right']) |
451
|
|
|
->where($conditionsBuilder) |
452
|
|
|
->enableHydration(false) |
453
|
|
|
->all(); |
454
|
|
|
|
455
|
|
|
// Replace `$conditionsBuilder` with a more complex one that returns not only the matching object types, |
456
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|
|
// but also their descendants. |
457
|
|
|
$conditionsBuilder = function (QueryExpression $exp) use ($nsmCounters) { |
458
|
|
|
if ($nsmCounters->count() === 0) { |
459
|
|
|
// No nodes found: relationship apparently does not exist, or has no linked types. |
460
|
|
|
// Add contradiction to force empty results. |
461
|
|
|
return $exp->add(new Comparison(1, 1, 'integer', '<>')); |
462
|
|
|
} |
463
|
|
|
|
464
|
|
|
// Find descendants for all found nodes using NSM rules. |
465
|
|
|
// If the nodes found are [l = 3, r = 8] and [l = 9, r = 10], the conditions will be built as follows: |
466
|
|
|
// ... WHERE (tree_left >= 3 AND tree_right <= 8) OR (tree_left >= 9 AND tree_right <= 10) |
467
|
|
|
return $exp->or( |
468
|
|
|
$nsmCounters |
469
|
|
|
->map(function (array $row) use ($exp) { |
470
|
|
|
return $exp->and(function (QueryExpression $exp) use ($row) { |
471
|
|
|
return $exp |
472
|
|
|
->gte($this->aliasField('tree_left'), $row['tree_left']) |
473
|
|
|
->lte($this->aliasField('tree_right'), $row['tree_right']); |
474
|
|
|
}); |
475
|
|
|
}) |
476
|
|
|
->toArray() |
477
|
|
|
); |
478
|
|
|
}; |
479
|
|
|
} |
480
|
|
|
|
481
|
|
|
// Everything is said and done by now. Fingers crossed! |
482
|
|
|
return $query->where($conditionsBuilder); |
483
|
|
|
} |
484
|
|
|
|
485
|
|
|
/** |
486
|
|
|
* Finder to get object type starting from object id or uname. |
487
|
|
|
* |
488
|
|
|
* @param \Cake\ORM\Query $query Query object. |
489
|
|
|
* @param array $options Additional options. The `id` key is required. |
490
|
|
|
* @return \Cake\ORM\Query |
491
|
|
|
* @throws \BEdita\Core\Exception\BadFilterException When missing required parameters. |
492
|
|
|
*/ |
493
|
|
|
protected function findObjectId(Query $query, array $options = []) |
494
|
|
|
{ |
495
|
|
|
if (empty($options['id'])) { |
496
|
|
|
throw new BadFilterException(__d('bedita', 'Missing required parameter "{0}"', 'id')); |
497
|
|
|
} |
498
|
|
|
|
499
|
|
|
return $query->innerJoinWith('Objects', function (Query $query) use ($options) { |
500
|
|
|
if (!is_numeric($options['id'])) { |
501
|
|
|
return $query->where([$this->Objects->aliasField('uname') => $options['id']]); |
502
|
|
|
} |
503
|
|
|
|
504
|
|
|
return $query->where([$this->Objects->aliasField('id') => intval($options['id'])]); |
505
|
|
|
}); |
506
|
|
|
} |
507
|
|
|
} |
508
|
|
|
|