la-haute-societe /
yii2-save-relations-behavior
| Total Complexity | 120 |
| Total Lines | 605 |
| Duplicated Lines | 0 % |
| Coverage | 96.31% |
| Changes | 0 | ||
Complex classes like SaveRelationsBehavior often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use SaveRelationsBehavior, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 24 | class SaveRelationsBehavior extends Behavior |
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| 25 | { |
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| 26 | |||
| 27 | public $relations = []; |
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| 28 | private $_relations = []; |
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| 29 | private $_oldRelationValue = []; // Store initial relations value |
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| 30 | private $_newRelationValue = []; // Store update relations value |
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| 31 | private $_relationsSaveStarted = false; |
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| 32 | private $_transaction; |
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| 33 | |||
| 34 | |||
| 35 | private $_relationsScenario = []; |
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| 36 | private $_relationsExtraColumns = []; |
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| 37 | |||
| 38 | //private $_relationsCascadeDelete = []; //TODO |
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| 39 | |||
| 40 | /** |
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| 41 | * @inheritdoc |
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| 42 | */ |
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| 43 | 35 | public function init() |
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| 44 | { |
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| 45 | 35 | parent::init(); |
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| 46 | 35 | $allowedProperties = ['scenario', 'extraColumns']; |
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| 47 | 35 | foreach ($this->relations as $key => $value) { |
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| 48 | 34 | if (is_int($key)) { |
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| 49 | 34 | $this->_relations[] = $value; |
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| 50 | } else { |
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| 51 | 28 | $this->_relations[] = $key; |
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| 52 | 28 | if (is_array($value)) { |
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| 53 | 28 | foreach ($value as $propertyKey => $propertyValue) { |
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| 54 | 28 | if (in_array($propertyKey, $allowedProperties)) { |
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| 55 | 28 | $this->{'_relations' . ucfirst($propertyKey)}[$key] = $propertyValue; |
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| 56 | } else { |
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| 57 | 28 | throw new UnknownPropertyException('The relation property named ' . $propertyKey . ' is not supported'); |
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| 58 | } |
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| 59 | } |
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| 60 | } |
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| 61 | } |
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| 62 | } |
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| 63 | 35 | } |
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| 64 | |||
| 65 | /** |
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| 66 | * @inheritdoc |
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| 67 | */ |
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| 68 | 34 | public function events() |
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| 69 | { |
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| 70 | return [ |
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| 71 | 34 | BaseActiveRecord::EVENT_BEFORE_VALIDATE => 'beforeValidate', |
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| 72 | 34 | BaseActiveRecord::EVENT_AFTER_INSERT => 'afterSave', |
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| 73 | 34 | BaseActiveRecord::EVENT_AFTER_UPDATE => 'afterSave', |
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| 74 | ]; |
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| 75 | } |
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| 76 | |||
| 77 | /** |
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| 78 | * Check if the behavior is attached to an Active Record |
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| 79 | * @param Component $owner |
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| 80 | * @throws RuntimeException |
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| 81 | */ |
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| 82 | 35 | public function attach($owner) |
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| 83 | { |
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| 84 | 35 | if (!($owner instanceof BaseActiveRecord)) { |
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| 85 | 1 | throw new RuntimeException('Owner must be instance of yii\db\BaseActiveRecord'); |
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| 86 | } |
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| 87 | 34 | parent::attach($owner); |
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| 88 | 34 | } |
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| 89 | |||
| 90 | /** |
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| 91 | * Override canSetProperty method to be able to detect if a relation setter is allowed. |
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| 92 | * Setter is allowed if the relation is declared in the `relations` parameter |
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| 93 | * @param string $name |
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| 94 | * @param boolean $checkVars |
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| 95 | * @return boolean |
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| 96 | */ |
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| 97 | 33 | public function canSetProperty($name, $checkVars = true) |
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| 105 | } |
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| 106 | |||
| 107 | /** |
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| 108 | * Override __set method to be able to set relations values either by providing a model instance, |
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| 109 | * a primary key value or an associative array |
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| 110 | * @param string $name |
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| 111 | * @param mixed $value |
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| 112 | * @throws \yii\base\InvalidArgumentException |
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| 113 | */ |
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| 114 | 32 | public function __set($name, $value) |
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| 115 | { |
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| 116 | /** @var BaseActiveRecord $owner */ |
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| 117 | 32 | $owner = $this->owner; |
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| 118 | 32 | if (in_array($name, $this->_relations)) { |
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| 119 | 32 | Yii::debug("Setting {$name} relation value", __METHOD__); |
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| 120 | 32 | if (!isset($this->_oldRelationValue[$name])) { |
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| 121 | 32 | if ($owner->isNewRecord) { |
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| 122 | 15 | if ($owner->getRelation($name)->multiple === true) { |
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|
Bug
introduced
by
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| 123 | 7 | $this->_oldRelationValue[$name] = []; |
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| 124 | } else { |
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| 125 | 13 | $this->_oldRelationValue[$name] = null; |
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| 126 | } |
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| 127 | } else { |
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| 128 | 18 | $this->_oldRelationValue[$name] = $owner->{$name}; |
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| 129 | } |
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| 130 | } |
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| 131 | 32 | if ($owner->getRelation($name)->multiple === true) { |
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| 132 | 21 | $this->setMultipleRelation($name, $value); |
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| 133 | } else { |
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| 134 | 19 | $this->setSingleRelation($name, $value); |
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| 135 | } |
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| 136 | } |
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| 137 | 32 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * Set the named single relation with the given value |
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| 141 | * @param $name |
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| 142 | * @param $value |
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| 143 | * @throws \yii\base\InvalidArgumentException |
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| 144 | */ |
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| 145 | 19 | protected function setSingleRelation($name, $value) |
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| 146 | { |
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| 147 | /** @var BaseActiveRecord $owner */ |
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| 148 | 19 | $owner = $this->owner; |
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| 149 | 19 | $relation = $owner->getRelation($name); |
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| 150 | 19 | if (!($value instanceof $relation->modelClass)) { |
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| 151 | 8 | $value = $this->processModelAsArray($value, $relation); |
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| 152 | } |
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| 153 | 19 | $this->_newRelationValue[$name] = $value; |
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| 154 | 19 | $owner->populateRelation($name, $value); |
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| 155 | 19 | } |
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| 156 | |||
| 157 | /** |
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| 158 | * Set the named multiple relation with the given value |
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| 159 | * @param $name |
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| 160 | * @param $value |
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| 161 | * @throws \yii\base\InvalidArgumentException |
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| 162 | */ |
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| 163 | 21 | protected function setMultipleRelation($name, $value) |
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| 164 | { |
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| 165 | /** @var BaseActiveRecord $owner */ |
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| 166 | 21 | $owner = $this->owner; |
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| 167 | 21 | $relation = $owner->getRelation($name); |
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| 168 | 21 | $newRelations = []; |
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| 169 | 21 | if (!is_array($value)) { |
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| 170 | 3 | if (!empty($value)) { |
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| 171 | 2 | $value = [$value]; |
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| 172 | } else { |
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| 173 | 1 | $value = []; |
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| 174 | } |
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| 175 | } |
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| 176 | 21 | foreach ($value as $entry) { |
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| 177 | 20 | if ($entry instanceof $relation->modelClass) { |
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| 178 | 15 | $newRelations[] = $entry; |
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| 179 | } else { |
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| 180 | // TODO handle this with one DB request to retrieve all models |
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| 181 | 9 | $newRelations[] = $this->processModelAsArray($entry, $relation); |
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| 182 | } |
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| 183 | } |
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| 184 | 21 | $this->_newRelationValue[$name] = $newRelations; |
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| 185 | 21 | $owner->populateRelation($name, $newRelations); |
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| 186 | 21 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * Get a BaseActiveRecord model using the given $data parameter. |
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| 190 | * $data could either be a model ID or an associative array representing model attributes => values |
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| 191 | * @param mixed $data |
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| 192 | * @param \yii\db\ActiveQuery $relation |
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| 193 | * @return BaseActiveRecord |
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| 194 | */ |
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| 195 | 13 | protected function processModelAsArray($data, $relation) |
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| 196 | { |
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| 197 | /** @var BaseActiveRecord $modelClass */ |
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| 198 | 13 | $modelClass = $relation->modelClass; |
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| 199 | // Get the related model foreign keys |
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| 200 | 13 | if (is_array($data)) { |
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| 201 | 9 | $fks = []; |
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| 202 | |||
| 203 | // search PK |
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| 204 | 9 | foreach ($modelClass::primaryKey() as $modelAttribute) { |
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| 205 | 9 | if (array_key_exists($modelAttribute, $data) && !empty($data[$modelAttribute])) { |
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| 206 | 7 | $fks[$modelAttribute] = $data[$modelAttribute]; |
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| 207 | } else { |
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| 208 | 7 | $fks = []; |
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| 209 | 7 | break; |
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| 210 | } |
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| 211 | } |
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| 212 | 9 | if (empty($fks)) { |
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| 213 | // Get the right link definition |
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| 214 | 7 | if ($relation->via instanceof BaseActiveRecord) { |
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| 215 | /** @var BaseActiveRecord|array $viaQuery */ |
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| 216 | $viaQuery = $relation->via; |
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| 217 | $link = $viaQuery->link; |
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| 218 | 7 | } elseif (is_array($relation->via)) { |
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| 219 | 2 | list($viaName, $viaQuery) = $relation->via; |
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| 220 | 2 | $link = $viaQuery->link; |
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| 221 | } else { |
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| 222 | 5 | $link = $relation->link; |
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| 223 | } |
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| 224 | 7 | foreach ($link as $relatedAttribute => $modelAttribute) { |
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| 225 | 7 | if (array_key_exists($modelAttribute, $data) && !empty($data[$modelAttribute])) { |
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| 226 | 7 | $fks[$modelAttribute] = $data[$modelAttribute]; |
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| 227 | } |
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| 228 | } |
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| 229 | } |
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| 230 | } else { |
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| 231 | 4 | $fks = $data; |
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| 232 | } |
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| 233 | // Load existing model or create one if no key was provided and data is not empty |
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| 234 | /** @var BaseActiveRecord $relationModel */ |
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| 235 | 13 | $relationModel = null; |
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| 236 | 13 | if (!empty($fks)) { |
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| 237 | 8 | $relationModel = $modelClass::findOne($fks); |
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| 238 | } |
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| 239 | 13 | if (!($relationModel instanceof BaseActiveRecord) && !empty($data)) { |
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| 240 | 8 | $relationModel = new $modelClass; |
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| 241 | } |
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| 242 | 13 | if (($relationModel instanceof BaseActiveRecord) && is_array($data)) { |
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| 243 | 9 | $relationModel->setAttributes($data); |
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| 244 | } |
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| 245 | 13 | return $relationModel; |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * Before the owner model validation, save related models. |
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| 250 | * For `hasOne()` relations, set the according foreign keys of the owner model to be able to validate it |
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| 251 | * @param ModelEvent $event |
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| 252 | * @throws DbException |
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| 253 | * @throws \yii\base\InvalidConfigException |
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| 254 | */ |
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| 255 | 29 | public function beforeValidate(ModelEvent $event) |
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| 256 | { |
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| 257 | 29 | if ($this->_relationsSaveStarted === false && !empty($this->_oldRelationValue)) { |
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| 258 | /* @var $model BaseActiveRecord */ |
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| 259 | 29 | $model = $this->owner; |
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| 260 | 29 | if ($this->saveRelatedRecords($model, $event)) { |
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| 261 | // If relation is has_one, try to set related model attributes |
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| 262 | 27 | foreach ($this->_relations as $relationName) { |
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| 263 | 27 | if (array_key_exists($relationName, $this->_oldRelationValue)) { // Relation was not set, do nothing... |
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| 264 | 27 | $relation = $model->getRelation($relationName); |
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| 265 | 27 | if ($relation->multiple === false && !empty($model->{$relationName})) { |
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| 266 | 15 | Yii::debug("Setting foreign keys for {$relationName}", __METHOD__); |
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| 267 | 15 | foreach ($relation->link as $relatedAttribute => $modelAttribute) { |
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| 268 | 15 | if ($model->{$modelAttribute} !== $model->{$relationName}->{$relatedAttribute}) { |
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| 269 | 15 | $model->{$modelAttribute} = $model->{$relationName}->{$relatedAttribute}; |
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| 270 | } |
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| 271 | } |
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| 272 | } |
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| 273 | } |
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| 274 | } |
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| 275 | } |
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| 276 | } |
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| 277 | 29 | } |
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| 278 | |||
| 279 | /** |
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| 280 | * For each related model, try to save it first. |
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| 281 | * If set in the owner model, operation is done in a transactional way so if one of the models should not validate |
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| 282 | * or be saved, a rollback will occur., |
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| 283 | * This is done during the before validation process to be able to set the related foreign keys. |
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| 284 | * @param BaseActiveRecord $model |
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| 285 | * @param ModelEvent $event |
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| 286 | * @return bool |
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| 287 | * @throws DbException |
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| 288 | * @throws \yii\base\InvalidConfigException |
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| 289 | */ |
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| 290 | 29 | protected function saveRelatedRecords(BaseActiveRecord $model, ModelEvent $event) |
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| 291 | { |
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| 292 | if ( |
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| 293 | 29 | method_exists($model, 'isTransactional') |
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| 294 | 29 | && is_null($model->getDb()->transaction) |
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| 295 | && ( |
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| 296 | 29 | ($model->isNewRecord && $model->isTransactional($model::OP_INSERT)) |
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| 297 | 21 | || (!$model->isNewRecord && $model->isTransactional($model::OP_UPDATE)) |
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| 298 | 6 | || $model->isTransactional($model::OP_ALL) |
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| 299 | ) |
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| 300 | ) { |
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| 301 | 23 | $this->_transaction = $model->getDb()->beginTransaction(); |
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| 302 | } |
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| 303 | try { |
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| 304 | 29 | foreach ($this->_relations as $relationName) { |
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| 305 | 29 | if (array_key_exists($relationName, $this->_oldRelationValue)) { // Relation was not set, do nothing... |
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| 306 | /** @var ActiveQuery $relation */ |
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| 307 | 29 | $relation = $model->getRelation($relationName); |
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| 308 | 29 | if (!empty($model->{$relationName})) { |
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| 309 | 27 | if ($relation->multiple === false) { |
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| 310 | 17 | $this->_prepareHasOneRelation($model, $relationName, $event); |
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| 311 | } else { |
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| 312 | 18 | $this->_prepareHasManyRelation($model, $relationName); |
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| 313 | } |
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| 314 | } |
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| 315 | } |
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| 316 | } |
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| 317 | 27 | if (!$event->isValid) { |
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| 318 | throw new Exception('One of the related model could not be validated'); |
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| 319 | } |
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| 320 | 2 | } catch (Exception $e) { |
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| 321 | 2 | Yii::warning(get_class($e) . ' was thrown while saving related records during beforeValidate event: ' . $e->getMessage(), __METHOD__); |
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| 322 | 2 | $this->_rollback(); |
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| 323 | 2 | $model->addError($model->formName(), $e->getMessage()); |
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| 324 | 2 | $event->isValid = false; // Stop saving, something went wrong |
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| 325 | 2 | return false; |
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| 326 | } |
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| 327 | 27 | return true; |
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| 328 | } |
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| 329 | |||
| 330 | /** |
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| 331 | * Validate a relation model and add an error message to owner model attribute if needed |
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| 332 | * @param string $pettyRelationName |
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| 333 | * @param string $relationName |
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| 334 | * @param BaseActiveRecord $relationModel |
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| 335 | */ |
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| 336 | 27 | protected function validateRelationModel($pettyRelationName, $relationName, BaseActiveRecord $relationModel) |
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| 337 | { |
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| 338 | /** @var BaseActiveRecord $model */ |
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| 339 | 27 | $model = $this->owner; |
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| 340 | 27 | if (!is_null($relationModel) && ($relationModel->isNewRecord || count($relationModel->getDirtyAttributes()))) { |
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| 341 | 19 | if (array_key_exists($relationName, $this->_relationsScenario)) { |
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| 342 | 7 | $relationModel->setScenario($this->_relationsScenario[$relationName]); |
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| 343 | } |
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| 344 | 19 | Yii::debug("Validating {$pettyRelationName} relation model using " . $relationModel->scenario . ' scenario', __METHOD__); |
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| 345 | 19 | if (!$relationModel->validate()) { |
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| 346 | 4 | $this->_addError($relationModel, $model, $relationName, $pettyRelationName); |
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| 347 | } |
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| 348 | |||
| 349 | } |
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| 350 | 27 | } |
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| 351 | |||
| 352 | /** |
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| 353 | * Attach errors to owner relational attributes |
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| 354 | * @param $relationModel |
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| 355 | * @param $owner |
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| 356 | * @param $relationName |
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| 357 | * @param $pettyRelationName |
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| 358 | */ |
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| 359 | 5 | private function _addError($relationModel, $owner, $relationName, $pettyRelationName) |
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| 364 | } |
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| 365 | } |
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| 366 | 5 | } |
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| 367 | |||
| 368 | /** |
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| 369 | * Rollback transaction if any |
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| 370 | * @throws DbException |
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| 371 | */ |
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| 372 | 3 | private function _rollback() |
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| 377 | } |
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| 378 | 3 | } |
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| 379 | |||
| 380 | /** |
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| 381 | * Link the related models. |
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| 382 | * If the models have not been changed, nothing will be done. |
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| 383 | * Related records will be linked to the owner model using the BaseActiveRecord `link()` method. |
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| 384 | * @throws Exception |
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| 385 | */ |
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| 386 | 27 | public function afterSave() |
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| 387 | { |
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| 388 | 27 | if ($this->_relationsSaveStarted === false) { |
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| 389 | /** @var BaseActiveRecord $owner */ |
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| 390 | 27 | $owner = $this->owner; |
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| 391 | 27 | $this->_relationsSaveStarted = true; |
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| 392 | // Populate relations with updated values |
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| 393 | 27 | foreach ($this->_newRelationValue as $name => $value) { |
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| 394 | 27 | $this->owner->populateRelation($name, $value); |
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| 395 | } |
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| 396 | try { |
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| 397 | 27 | foreach ($this->_relations as $relationName) { |
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| 398 | 27 | if (array_key_exists($relationName, $this->_oldRelationValue)) { // Relation was not set, do nothing... |
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| 399 | 27 | Yii::debug("Linking {$relationName} relation", __METHOD__); |
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| 400 | /** @var ActiveQuery $relation */ |
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| 401 | 27 | $relation = $owner->getRelation($relationName); |
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| 402 | 27 | if ($relation->multiple === true) { // Has many relation |
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| 403 | 18 | $this->_afterSaveHasManyRelation($relationName); |
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| 404 | } else { // Has one relation |
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| 405 | 17 | $this->_afterSaveHasOneRelation($relationName); |
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| 406 | } |
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| 407 | 27 | unset($this->_oldRelationValue[$relationName]); |
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| 408 | } |
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| 409 | } |
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| 410 | 1 | } catch (Exception $e) { |
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| 411 | 1 | Yii::warning(get_class($e) . ' was thrown while saving related records during afterSave event: ' . $e->getMessage(), __METHOD__); |
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| 412 | 1 | $this->_rollback(); |
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| 413 | /*** |
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| 414 | * Sadly mandatory because the error occurred during afterSave event |
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| 415 | * and we don't want the user/developper not to be aware of the issue. |
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| 416 | ***/ |
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| 417 | 1 | throw $e; |
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| 418 | } |
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| 419 | 27 | $owner->refresh(); |
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| 420 | 27 | $this->_relationsSaveStarted = false; |
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| 421 | 27 | if (($this->_transaction instanceof Transaction) && $this->_transaction->isActive) { |
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| 422 | 21 | $this->_transaction->commit(); |
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| 423 | } |
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| 424 | } |
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| 425 | 27 | } |
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| 426 | |||
| 427 | /** |
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| 428 | * Return array of columns to save to the junction table for a related model having a many-to-many relation. |
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| 429 | * @param string $relationName |
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| 430 | * @param BaseActiveRecord $model |
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| 431 | * @return array |
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| 432 | * @throws \RuntimeException |
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| 433 | */ |
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| 434 | 14 | private function _getJunctionTableColumns($relationName, $model) |
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| 435 | { |
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| 436 | 14 | $junctionTableColumns = []; |
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| 437 | 14 | if (array_key_exists($relationName, $this->_relationsExtraColumns)) { |
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| 438 | 1 | if (is_callable($this->_relationsExtraColumns[$relationName])) { |
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| 439 | 1 | $junctionTableColumns = $this->_relationsExtraColumns[$relationName]($model); |
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| 440 | } elseif (is_array($this->_relationsExtraColumns[$relationName])) { |
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| 441 | $junctionTableColumns = $this->_relationsExtraColumns[$relationName]; |
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| 442 | } |
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| 443 | 1 | if (!is_array($junctionTableColumns)) { |
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| 444 | throw new RuntimeException( |
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| 445 | 'Junction table columns definition must return an array, got ' . gettype($junctionTableColumns) |
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| 446 | ); |
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| 447 | } |
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| 448 | } |
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| 449 | 14 | return $junctionTableColumns; |
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| 450 | } |
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| 451 | |||
| 452 | /** |
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| 453 | * Compute the difference between two set of records using primary keys "tokens" |
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| 454 | * If third parameter is set to true all initial related records will be marked for removal even if their |
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| 455 | * properties did not change. This can be handy in a many-to-many relation involving a junction table. |
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| 456 | * @param BaseActiveRecord[] $initialRelations |
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| 457 | * @param BaseActiveRecord[] $updatedRelations |
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| 458 | * @param bool $forceSave |
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| 459 | * @return array |
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| 460 | */ |
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| 461 | 17 | private function _computePkDiff($initialRelations, $updatedRelations, $forceSave = false) |
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| 479 | } |
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| 480 | |||
| 481 | /** |
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| 482 | * Populates relations with input data |
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| 483 | * @param array $data |
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| 484 | */ |
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| 485 | 4 | public function loadRelations($data) |
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| 497 | } |
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| 498 | } |
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| 499 | 4 | } |
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| 500 | |||
| 501 | /** |
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| 502 | * @param $relationName |
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| 503 | * @throws DbException |
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| 504 | */ |
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| 505 | 18 | public function _afterSaveHasManyRelation($relationName) |
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| 568 | } |
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| 569 | 17 | } |
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| 570 | |||
| 571 | /** |
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| 572 | * @param $relationName |
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| 573 | * @throws \yii\base\InvalidCallException |
||
| 574 | */ |
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| 575 | 17 | private function _afterSaveHasOneRelation($relationName) |
|
| 576 | { |
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| 577 | /** @var BaseActiveRecord $owner */ |
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| 578 | 17 | $owner = $this->owner; |
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| 579 | |||
| 580 | 17 | if ($this->_oldRelationValue[$relationName] !== $owner->{$relationName}) { |
|
| 581 | 14 | if ($owner->{$relationName} instanceof BaseActiveRecord) { |
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| 582 | 13 | $owner->link($relationName, $owner->{$relationName}); |
|
| 583 | } else { |
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| 584 | 1 | if ($this->_oldRelationValue[$relationName] instanceof BaseActiveRecord) { |
|
| 585 | 1 | $owner->unlink($relationName, $this->_oldRelationValue[$relationName]); |
|
| 586 | } |
||
| 587 | } |
||
| 588 | } |
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| 589 | 17 | if ($owner->{$relationName} instanceof BaseActiveRecord) { |
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| 590 | 15 | $owner->{$relationName}->save(); |
|
| 591 | } |
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| 592 | 17 | } |
|
| 593 | |||
| 594 | /** |
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| 595 | * @param BaseActiveRecord $model |
||
| 596 | * @param $relationName |
||
| 597 | */ |
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| 598 | 18 | private function _prepareHasManyRelation(BaseActiveRecord $model, $relationName) |
|
| 604 | } |
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| 605 | 18 | } |
|
| 606 | |||
| 607 | /** |
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| 608 | * @param BaseActiveRecord $model |
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| 609 | * @param ModelEvent $event |
||
| 610 | * @param $relationName |
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| 611 | */ |
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| 612 | 17 | private function _prepareHasOneRelation(BaseActiveRecord $model, $relationName, ModelEvent $event) |
|
| 629 | } |
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| 630 | 15 | } |
|
| 631 | } |
||
| 632 |
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