| 1 | <?php | ||
| 13 | trait HasPivotPrimaryKey | ||
| 14 | { | ||
| 15 | /** | ||
| 16 | * @var null|string | ||
| 17 | */ | ||
| 18 | protected $pivotPrimaryKey = null; | ||
| 19 | |||
| 20 | /** | ||
| 21 | * @param $params | ||
| 22 | */ | ||
| 23 | public function checkParamPivotPrimaryKey($params) | ||
| 30 | |||
| 31 | |||
| 32 | /** | ||
| 33 | * @return string | ||
| 34 | */ | ||
| 35 | 1 | public function getPivotPrimaryKey() | |
| 43 | |||
| 44 | /** | ||
| 45 | * @param $name | ||
| 46 | */ | ||
| 47 | 1 | public function setPivotPrimaryKey($name) | |
| 51 | |||
| 52 | 1 | protected function initPivotPrimaryKey() | |
| 56 | |||
| 57 | /** | ||
| 58 | * @return string | ||
| 59 | */ | ||
| 60 | 1 | protected function generatePivotPrimaryKey() | |
| 64 | } | ||
| 65 | 
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.