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<?php |
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/* |
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* This file is part of Mailable. |
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* |
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* (c) Oliver Green <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace BoxedCode\Eloquent\Meta; |
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trait FluentMeta |
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{ |
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use Metable; |
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/** |
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* Model table columns. |
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* |
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* @var array |
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*/ |
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public static $model_table_columns = []; |
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/** |
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* Get a models table columns. |
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* |
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* @param $class |
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* @return mixed |
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*/ |
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protected function getClassColumns($class) |
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{ |
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if (! isset(static::$model_table_columns[$class])) { |
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static::$model_table_columns[$class] = $this->getConnection() |
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->getSchemaBuilder() |
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->getColumnListing($this->getTable()); |
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} |
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return static::$model_table_columns[$class]; |
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} |
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/** |
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* Check whether a method, property or attribute |
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* name exists on the model. |
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* |
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* @param $name |
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* @return bool |
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*/ |
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protected function existsOnParent($name) |
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{ |
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$columns = $this->getClassColumns(static::class); |
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return property_exists($this, $name) |
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|| method_exists($this, $name) |
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|| in_array($name, $columns); |
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} |
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/** |
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* Dynamically determine whether a meta item or model property isset. |
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* |
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* @param $name |
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* @return bool |
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*/ |
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public function __isset($name) |
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{ |
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if ($this->existsOnParent($name)) { |
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return parent::__isset($name); |
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} |
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return isset($this->meta->$name); |
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} |
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/** |
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* Dynamically get a model property / attribute or meta item. |
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* |
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* @param $name |
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* @return mixed |
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*/ |
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public function __get($name) |
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{ |
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if ($this->existsOnParent($name)) { |
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return parent::__get($name); |
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} |
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if ($meta = $this->meta->$name) { |
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return $this->meta->$name; |
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} |
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} |
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/** |
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* Dynamically set a meta item or model property / attribute. |
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* |
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* @param $name |
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* @param $value |
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* @return mixed |
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*/ |
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public function __set($name, $value) |
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{ |
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if ($this->existsOnParent($name)) { |
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return parent::__set($name, $value); |
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} |
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$this->meta->$name = $value; |
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} |
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/** |
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* Dynamically unset a meta item or model property / attribute. |
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* |
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* @param $name |
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*/ |
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public function __unset($name) |
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{ |
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if ($this->existsOnParent($name)) { |
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unset($this->$name); |
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return; |
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} |
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if ($meta = $this->meta->$name) { |
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unset($this->meta->$name); |
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} |
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} |
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} |
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This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.