src/applications/releeph/field/selector/ReleephFieldSelector.php

   1 <?php
   2
   3 abstract class ReleephFieldSelector extends Phobject {
   4
   5   final public function __construct() {
   6     // <empty>
   7   }
   8
   9   abstract public function getFieldSpecifications();
  10
  11   public function sortFieldsForCommitMessage(array $fields) {
  12     assert_instances_of($fields, 'ReleephFieldSpecification');
  13     return $fields;
  14   }
  15
  16   protected static function selectFields(array $fields, array $classes) {
  17     assert_instances_of($fields, 'ReleephFieldSpecification');
  18
  19     $map = array();
  20     foreach ($fields as $field) {
  21       $map[get_class($field)] = $field;
  22     }
  23
  24     $result = array();
  25     foreach ($classes as $class) {
  26       $field = idx($map, $class);
  27       if (!$field) {
  28         throw new Exception(
  29           pht(
  30             "Tried to select a in instance of '%s' but that field ".
  31             "is not configured for this project!",
  32             $class));
  33       }
  34
  35       if (idx($result, $class)) {
  36         throw new Exception(
  37           pht(
  38             "You have asked to select the field '%s' more than once!",
  39             $class));
  40       }
  41
  42       $result[$class] = $field;
  43     }
  44
  45     return $result;
  46   }
  47
  48 }