How to use forAll method of Doctrine ArrayCollection?

Question

Can anybody show example of using forAll method of Doctrine\Common\Collections\ArrayCollection?

Answer 1

It's pretty straightforward. The class you linked to implements the forAll method in a following manner:

foreach ($this->_elements as $key => $element) {
     if ( ! $p($key, $element)) {
         return false;
     }
}

So, based on that you should invoke the forAll like:

$collection = ... #some data

$collection->forAll(function($key, $item){
    // Your logic here, based on $key and $item
});

Hope this help....

EDIT (the example):

• You have an object of entity Student, which has a OneToMany to student's marks.

• You want to check if student has passed all the subjects he/she elected

  $student = ....
  $allPassed = $student->getMarks()->forAll(function($key, $mark){
      return $mark->getValue() != 'F';
  });
  

The $allPassed will hold TRUE if all marks were either 'A', 'B', 'C' or 'D'. Even if one of them were F if will be FALSE.