1<?php
2
3namespace Drupal\Core\Field;
4
5use Drupal\Core\State\StateInterface;
6
7/**
8 * Provides a repository for deleted field and field storage objects.
9 *
10 * @internal
11 */
12class DeletedFieldsRepository implements DeletedFieldsRepositoryInterface {
13
14  /**
15   * The state key/value store.
16   *
17   * @var \Drupal\Core\State\StateInterface
18   */
19  protected $state;
20
21  /**
22   * Constructs a new deleted fields repository.
23   *
24   * @param \Drupal\Core\State\StateInterface $state
25   *   The state key/value store.
26   */
27  public function __construct(StateInterface $state) {
28    $this->state = $state;
29  }
30
31  /**
32   * {@inheritdoc}
33   */
34  public function getFieldDefinitions($field_storage_unique_id = NULL) {
35    $deleted_field_definitions = $this->state->get('field.field.deleted', []);
36
37    if ($field_storage_unique_id) {
38      $deleted_field_definitions = array_filter($deleted_field_definitions, function (FieldDefinitionInterface $field_definition) use ($field_storage_unique_id) {
39        return $field_definition->getFieldStorageDefinition()->getUniqueStorageIdentifier() === $field_storage_unique_id;
40      });
41    }
42
43    return $deleted_field_definitions;
44  }
45
46  /**
47   * {@inheritdoc}
48   */
49  public function getFieldStorageDefinitions() {
50    return $this->state->get('field.storage.deleted', []);
51  }
52
53  /**
54   * {@inheritdoc}
55   */
56  public function addFieldDefinition(FieldDefinitionInterface $field_definition) {
57    $deleted_field_definitions = $this->state->get('field.field.deleted', []);
58    $deleted_field_definitions[$field_definition->getUniqueIdentifier()] = $field_definition;
59    $this->state->set('field.field.deleted', $deleted_field_definitions);
60
61    return $this;
62  }
63
64  /**
65   * {@inheritdoc}
66   */
67  public function addFieldStorageDefinition(FieldStorageDefinitionInterface $field_storage_definition) {
68    $deleted_storage_definitions = $this->state->get('field.storage.deleted', []);
69    $deleted_storage_definitions[$field_storage_definition->getUniqueStorageIdentifier()] = $field_storage_definition;
70    $this->state->set('field.storage.deleted', $deleted_storage_definitions);
71
72    return $this;
73  }
74
75  /**
76   * {@inheritdoc}
77   */
78  public function removeFieldDefinition(FieldDefinitionInterface $field_definition) {
79    $deleted_field_definitions = $this->state->get('field.field.deleted', []);
80    unset($deleted_field_definitions[$field_definition->getUniqueIdentifier()]);
81    $this->state->set('field.field.deleted', $deleted_field_definitions);
82
83    return $this;
84  }
85
86  /**
87   * {@inheritdoc}
88   */
89  public function removeFieldStorageDefinition(FieldStorageDefinitionInterface $field_storage_definition) {
90    $deleted_storage_definitions = $this->state->get('field.storage.deleted', []);
91    unset($deleted_storage_definitions[$field_storage_definition->getUniqueStorageIdentifier()]);
92    $this->state->set('field.storage.deleted', $deleted_storage_definitions);
93
94    return $this;
95  }
96
97}
98