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.. rst-class:: phpdoctorst .. role:: php(code) :language: php CollectionTrait =============== .. php:namespace:: atk4\core .. php:trait:: CollectionTrait .. rst-class:: phpdoc-description | This trait makes it possible for you to add child objects | into your object, but unlike "ContainerTrait" you can use | multiple collections stored as different array properties\. | This class does not offer automatic naming, so if you try | to add another element with same name, it will result in | exception\. :Source: `vendor/atk4/core/src/CollectionTrait.php#14 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L14>`_ Methods ------- .. rst-class:: public .. php:method:: public _addIntoCollection( $name, $object, $collection) .. rst-class:: phpdoc-description | Use this method trait like this:\. | function addField\($name, $definition\) \{ | $field = $this\-\>factory\($definition, \[\], \'\\atk4\\data\\Field\'\); | | return $this\-\>\_addIntoCollection\($name, $field, \'fields\'\); | \} :Source: `vendor/atk4/core/src/CollectionTrait.php#33 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L33>`_ :Parameters: * **$name** (string) Name that can be used to reference object * **$object** (object) New element to add * **$collection** (string) string String corresponding to the name of the property :Throws: :any:`\\atk4\\core\\Exception <atk4\\core\\Exception>` :Returns: object | mixed $obect .. rst-class:: public .. php:method:: public _removeFromCollection( $name, $collection) .. rst-class:: phpdoc-description | Removes element from specified collection\. :Source: `vendor/atk4/core/src/CollectionTrait.php#98 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L98>`_ :Parameters: * **$name** (string) * **$collection** (string) :Throws: :any:`\\atk4\\core\\Exception <atk4\\core\\Exception>` .. rst-class:: public .. php:method:: public _cloneCollection( $collection) .. rst-class:: phpdoc-description | Call this on collections after cloning object\. This will clone all collection | elements \(which are objects\)\. :Source: `vendor/atk4/core/src/CollectionTrait.php#117 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L117>`_ :Parameters: * **$collection** (string) to be cloned .. rst-class:: public .. php:method:: public _hasInCollection( $name, $collection) .. rst-class:: phpdoc-description | Returns object from collection or false if object is not found\. :Source: `vendor/atk4/core/src/CollectionTrait.php#135 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L135>`_ :Parameters: * **$name** (string) * **$collection** (string) :Returns: object | bool .. rst-class:: public .. php:method:: public _getFromCollection( $name, $collection) :Source: `vendor/atk4/core/src/CollectionTrait.php#148 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L148>`_ :Parameters: * **$name** (string) * **$collection** (string) :Throws: :any:`\\atk4\\core\\Exception <atk4\\core\\Exception>` :Returns: object .. rst-class:: protected .. php:method:: protected _shorten_ml( $desired) .. rst-class:: phpdoc-description | Method used internally for shortening object names | Identical implementation to ContainerTrait::\_shortern\. :Source: `vendor/atk4/core/src/CollectionTrait.php#171 <https://github.com/atk4/core/blob/master/vendor/atk4/core/src/CollectionTrait.php#L171>`_ :Parameters: * **$desired** (string) Desired name of new object. :Returns: string Shortened name of new object\.