summaryrefslogtreecommitdiffstats
path: root/core/modules/views/src/EntityViewsData.php
blob: cb30422797197a8d5035582d239a0e8b5bfb6332 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
<?php

/**
 * @file
 * Contains \Drupal\views\EntityViewsData.
 */

namespace Drupal\views;

use Drupal\Core\Entity\ContentEntityType;
use Drupal\Core\Entity\EntityHandlerInterface;
use Drupal\Core\Entity\EntityManagerInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\Sql\SqlEntityStorageInterface;
use Drupal\Core\Entity\Sql\TableMappingInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\StringTranslation\TranslationInterface;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides generic views integration for entities.
 */
class EntityViewsData implements EntityHandlerInterface, EntityViewsDataInterface {

  use StringTranslationTrait;

  /**
   * Entity type for this views controller instance.
   *
   * @var \Drupal\Core\Entity\EntityTypeInterface
   */
  protected $entityType;

  /**
   * The storage used for this entity type.
   *
   * @var \Drupal\Core\Entity\Sql\SqlEntityStorageInterface
   */
  protected $storage;

  /**
   * The module handler.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;

  /**
   * The translation manager.
   *
   * @var \Drupal\Core\StringTranslation\TranslationInterface
   */
  protected $translationManager;

  /**
   * The field storage definitions for all base fields of the entity type.
   *
   * @var \Drupal\Core\Field\FieldStorageDefinitionInterface[]
   */
  protected $fieldStorageDefinitions;

  /**
   * Constructs an EntityViewsData object.
   *
   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
   *   The entity type to provide views integration for.
   * @param \Drupal\Core\Entity\Sql\SqlEntityStorageInterface $storage_controller
   *   The storage controller used for this entity type.
   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
   *   The entity manager.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler.
   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation_manager
   *   The translation manager.
   */
  function __construct(EntityTypeInterface $entity_type, SqlEntityStorageInterface $storage_controller, EntityManagerInterface $entity_manager, ModuleHandlerInterface $module_handler, TranslationInterface $translation_manager) {
    $this->entityType = $entity_type;
    $this->entityManager = $entity_manager;
    $this->storage = $storage_controller;
    $this->moduleHandler = $module_handler;
    $this->setStringTranslation($translation_manager);
  }

  /**
   * {@inheritdoc}
   */
  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
    return new static(
      $entity_type,
      $container->get('entity.manager')->getStorage($entity_type->id()),
      $container->get('entity.manager'),
      $container->get('module_handler'),
      $container->get('string_translation'),
      $container->get('typed_data_manager')
    );
  }

  /**
   * Gets the field storage definitions.
   *
   * @return \Drupal\Core\Field\FieldStorageDefinitionInterface[]
   */
  protected function getFieldStorageDefinitions() {
    if (!isset($this->fieldStorageDefinitions)) {
      $this->fieldStorageDefinitions = $this->entityManager->getFieldStorageDefinitions($this->entityType->id());
    }
    return $this->fieldStorageDefinitions;
  }

  /**
   * {@inheritdoc}
   */
  public function getViewsData() {
    $data = [];

    // @todo In theory we should use the data table as base table, as this would
    //   save one pointless join (and one more for every relationship).
    // @see https://drupal.org/node/2337509
    $base_table = $this->entityType->getBaseTable();
    $base_field = $this->entityType->getKey('id');
    $data_table = $this->entityType->getDataTable();
    $revision_table = $this->entityType->getRevisionTable();
    $revision_data_table = $this->entityType->getRevisionDataTable();
    $revision_field = $this->entityType->getKey('revision');

    // Setup base information of the views data.
    $data[$base_table]['table']['group'] = $this->entityType->getLabel();
    $data[$base_table]['table']['provider'] = $this->entityType->getProvider();
    $data[$base_table]['table']['base'] = [
      'field' => $base_field,
      'title' => $this->entityType->getLabel(),
    ];

    if ($label_key = $this->entityType->getKey('label')) {
      if ($data_table) {
        $data[$base_table]['table']['base']['defaults'] = array(
          'field' => $label_key,
          'table' => $data_table,
        );
      }
      else {
        $data[$base_table]['table']['base']['defaults'] = array(
          'field' => $label_key,
        );
      }
    }

    // Setup relations to the revisions/property data.
    if ($data_table) {
      $data[$data_table]['table']['join'][$base_table] = [
        'left_field' => $base_field,
        'field' => $base_field,
        'type' => 'INNER'
      ];
      $data[$data_table]['table']['group'] = $this->entityType->getLabel();
      $data[$data_table]['table']['provider'] = $this->entityType->getProvider();
    }
    if ($revision_table) {
      $data[$revision_table]['table']['group'] = $this->t('@entity_type revision', ['@entity_type' => $this->entityType->getLabel()]);
      $data[$revision_table]['table']['provider'] = $this->entityType->getProvider();
      $data[$revision_table]['table']['base'] = array(
        'field' => $revision_field,
        'title' => $this->t('@entity_type revisions', array('@entity_type' => $this->entityType->getLabel())),
      );
      // Join the revision table to the base table.
      $data[$revision_table]['table']['join'][$base_table] = array(
        'left_field' => $revision_field,
        'field' => $revision_field,
        'type' => 'INNER',
      );

      if ($revision_data_table) {
        $data[$revision_data_table]['table']['group'] = $this->t('@entity_type revision', ['@entity_type' => $this->entityType->getLabel()]);

        $data[$revision_data_table]['table']['join'][$revision_table] = array(
          'left_field' => $revision_field,
          'field' => $revision_field,
          'type' => 'INNER',
        );
      }
    }

    // Load all typed data definitions of all fields. This should cover each of
    // the entity base, revision, data tables.
    $field_definitions = $this->entityManager->getBaseFieldDefinitions($this->entityType->id());
    if ($table_mapping = $this->storage->getTableMapping()) {
      // Iterate over each table we have so far and collect field data for each.
      // Based on whether the field is in the field_definitions provided by the
      // entity manager.
      // @todo We should better just rely on information coming from the entity
      //   storage.
      // @todo https://drupal.org/node/2337511
      foreach ($table_mapping->getTableNames() as $table) {
        foreach ($table_mapping->getFieldNames($table) as $field_name) {
          $this->mapFieldDefinition($table, $field_name, $field_definitions[$field_name], $table_mapping, $data[$table]);
        }
      }
    }

    // Add the entity type key to each table generated.
    $entity_type_id = $this->entityType->id();
    array_walk($data, function(&$table_data) use ($entity_type_id){
      $table_data['table']['entity type'] = $entity_type_id;
    });

    return $data;
  }

  /**
   * Puts the views data for a single field onto the views data.
   *
   * @param string $table
   *   The table of the field to handle.
   * @param string $field_name
   *   The name of the field to handle.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The field definition defined in Entity::baseFieldDefinitions()
   * @param \Drupal\Core\Entity\Sql\TableMappingInterface $table_mapping
   *   The table mapping information
   * @param array $table_data
   *   A reference to a specific entity table (for example data_table) inside
   *   the views data.
   */
  protected function mapFieldDefinition($table, $field_name, FieldDefinitionInterface $field_definition, TableMappingInterface $table_mapping, &$table_data) {
    // Create a dummy instance to retrieve property definitions.
    $field_column_mapping = $table_mapping->getColumnNames($field_name);
    $field_schema = $this->getFieldStorageDefinitions()[$field_name]->getSchema();

    $field_definition_type = $field_definition->getType();
    // Add all properties to views table data. We need an entry for each
    // column of each field, with the first one given special treatment.
    // @todo Introduce concept of the "main" column for a field, rather than
    //   assuming the first one is the main column. See also what the
    //   mapSingleFieldViewsData() method does with $first.
    $multiple = (count($field_column_mapping) > 1);
    $first = TRUE;
    foreach ($field_column_mapping as $field_column_name => $schema_field_name) {
      $views_field_name = ($multiple) ? $field_name . '__' . $field_column_name : $field_name;
      $table_data[$views_field_name] = $this->mapSingleFieldViewsData($table, $field_name, $field_definition_type, $field_column_name, $field_schema['columns'][$field_column_name]['type'], $first, $field_definition);

      $table_data[$views_field_name]['entity field'] = $field_name;
      $first = FALSE;
    }
  }

  /**
   * Provides the views data for a given data type and schema field.
   *
   * @param string $table
   *   The table of the field to handle.
   * @param string $field_name
   *   The machine name of the field being processed.
   * @param string $field_type
   *   The type of field being handled.
   * @param string $column_name
   *   For fields containing multiple columns, the column name being processed.
   * @param string $column_type
   *   Within the field, the column type being handled.
   * @param bool $first
   *   TRUE if this is the first column within the field.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The field definition.
   *
   * @return array
   *   The modified views data field definition.
   */
  protected function mapSingleFieldViewsData($table, $field_name, $field_type, $column_name, $column_type, $first, FieldDefinitionInterface $field_definition) {
    $views_field = array();

    // Provide a nicer, less verbose label for the first column within a field.
    // @todo Introduce concept of the "main" column for a field, rather than
    //   assuming the first one is the main column.
    if ($first) {
      $views_field['title'] = $field_definition->getLabel();
    }
    else {
      $views_field['title'] = $field_definition->getLabel() . " ($column_name)";
    }

    if ($description = $field_definition->getDescription()) {
      $views_field['help'] = $description;
    }

    // Set up the field, sort, argument, and filters, based on
    // the column and/or field data type.
    // @todo Allow field types to customize this.
    // @see https://www.drupal.org/node/2337515
    switch ($field_type) {
      // Special case a few field types.
      case 'timestamp':
      case 'created':
      case 'changed':
        $views_field['field']['id'] = 'date';
        $views_field['argument']['id'] = 'date';
        $views_field['filter']['id'] = 'date';
        $views_field['sort']['id'] = 'date';
        break;

      case 'language':
        $views_field['field']['id'] = 'language';
        $views_field['argument']['id'] = 'language';
        $views_field['filter']['id'] = 'language';
        $views_field['sort']['id'] = 'standard';
        break;

      case 'boolean':
        $views_field['field']['id'] = 'boolean';
        $views_field['argument']['id'] = 'numeric';
        $views_field['filter']['id'] = 'boolean';
        $views_field['sort']['id'] = 'standard';
        break;

      case 'uri':
        $views_field['field']['id'] = 'url';
        $views_field['argument']['id'] = 'string';
        $views_field['filter']['id'] = 'string';
        $views_field['sort']['id'] = 'standard';
        break;

      case 'text':
      case 'text_with_summary':
        // Treat these three long text fields the same.
        $field_type = 'text_long';
        // Intentional fall-through here to the default processing!

      default:
        // For most fields, the field type is generic enough to just use
        // the column type to determine the filters etc.
        switch ($column_type) {

          case 'int':
          case 'integer':
          case 'smallint':
          case 'tinyint':
          case 'mediumint':
          case 'float':
          case 'double':
          case 'decimal':
            $views_field['field']['id'] = 'numeric';
            $views_field['argument']['id'] = 'numeric';
            $views_field['filter']['id'] = 'numeric';
            $views_field['sort']['id'] = 'standard';
            break;

          case 'char':
          case 'string':
          case 'varchar':
          case 'tinytext':
          case 'text':
          case 'mediumtext':
          case 'longtext':
            $views_field['field']['id'] = 'standard';
            $views_field['argument']['id'] = 'string';
            $views_field['filter']['id'] = 'string';
            $views_field['sort']['id'] = 'standard';
            break;

          default:
            $views_field['field']['id'] = 'standard';
            $views_field['argument']['id'] = 'standard';
            $views_field['filter']['id'] = 'standard';
            $views_field['sort']['id'] = 'standard';
        }
    }

    // Do post-processing for a few field types.

    $process_method = 'processViewsDataFor' . Container::camelize($field_type);
    if (method_exists($this, $process_method)) {
      $this->{$process_method}($table, $field_definition, $views_field, $column_name);
    }

    return $views_field;
  }

  /**
   * Processes the views data for a language field.
   *
   * @param string $table
   *   The table the language field is added to.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The field definition.
   * @param array $views_field
   *   The views field data.
   * @param string $field_column_name
   *   The field column being processed.
   */
  protected function processViewsDataForLanguage($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {
    // Apply special titles for the langcode field.
    if ($field_definition->getName() == $this->entityType->getKey('langcode')) {
      if ($table == $this->entityType->getDataTable() || $table == $this->entityType->getRevisionDataTable()) {
        $views_field['title'] = $this->t('Translation language');
      }
      if ($table == $this->entityType->getBaseTable() || $table == $this->entityType->getRevisionTable()) {
        $views_field['title'] =  $this->t('Original language');
      }
    }
  }

  /**
   * Processes the views data for an entity reference field.
   *
   * @param string $table
   *   The table the language field is added to.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The field definition.
   * @param array $views_field
   *   The views field data.
   * @param string $field_column_name
   *   The field column being processed.
   */
  protected function processViewsDataForEntityReference($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {

    // @todo Should the actual field handler respect that this just renders a
    //   number?
    // @todo Create an optional entity field handler, that can render the
    //   entity.
    // @see https://www.drupal.org/node/2322949

    if ($entity_type_id = $field_definition->getItemDefinition()->getSetting('target_type')) {
      $entity_type = $this->entityManager->getDefinition($entity_type_id);
      if ($entity_type instanceof ContentEntityType) {
        $views_field['relationship'] = [
          'base' => $this->getViewsTableForEntityType($entity_type),
          'base field' => $entity_type->getKey('id'),
          'label' => $entity_type->getLabel(),
          'title' => $entity_type->getLabel(),
          'id' => 'standard',
        ];
        $views_field['field']['id'] = 'numeric';
        $views_field['argument']['id'] = 'numeric';
        $views_field['filter']['id'] = 'numeric';
        $views_field['sort']['id'] = 'standard';
      }
      else {
        $views_field['field']['id'] = 'standard';
        $views_field['argument']['id'] = 'string';
        $views_field['filter']['id'] = 'string';
        $views_field['sort']['id'] = 'standard';
      }
    }

    if ($field_definition->getName() == $this->entityType->getKey('bundle')) {
      // @todo Use the other bundle handlers, once
      //   https://www.drupal.org/node/2322949 is in.
      $views_field['filter']['id'] = 'bundle';
    }
  }

  /**
   * Processes the views data for a text field with formatting.
   *
   * @param string $table
   *   The table the field is added to.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The field definition.
   * @param array $views_field
   *   The views field data.
   * @param string $field_column_name
   *   The field column being processed.
   */
  protected function processViewsDataForTextLong($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {
    // Connect the text field to its formatter.
    if ($field_column_name == 'value') {
      $views_field['field']['format'] = $field_definition->getName() . '__format';
      $views_field['field']['id'] = 'markup';
    }
  }

  /**
   * Gets the table of an entity type to be used as base table in views.
   *
   * @todo Given that the base_table is pretty much useless as you often have to
   *   join to the data table anyway, it could make a lot of sense to start with
   *   the data table right from the beginning.
   * @see https://drupal.org/node/2337509
   *
   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
   *   The entity type.
   *
   * @return string
   *   The name of the base table in views.
   */
  protected function getViewsTableForEntityType(EntityTypeInterface $entity_type) {
    return $entity_type->getBaseTable();
  }

}