field_collection.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the field_collection module.
 */

/**
 * Implements hook_schema().
 */
function field_collection_schema() {

  $schema['field_collection_item'] = array(
    'description' => 'Stores information about field collection items.',
    'fields' => array(
      'item_id' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique field collection item ID.',
      ),
      'revision_id' => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Default revision ID.',
      ),
      'field_name' => array(
        'description' => 'The name of the field on the host entity embedding this entity.',
        'type' => 'varchar',
        'length' => 32,
        'not null' => TRUE,
      ),
      'archived' => array(
        'description' => 'Boolean indicating whether the field collection item is archived.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array('item_id'),
  );
  $schema['field_collection_item_revision'] = array(
    'description' => 'Stores revision information about field collection items.',
    'fields' => array(
      'revision_id' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique revision ID.',
      ),
      'item_id' => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Field collection item ID.',
      ),
    ),
    'primary key' => array('revision_id'),
    'indexes' => array(
      'item_id' => array('item_id'),
    ),
    'foreign keys' => array(
      'versioned_field_collection_item' => array(
        'table' => 'field_collection_item',
        'columns' => array('item_id' => 'item_id'),
      ),
    ),
  );

  $schema['cache_entity_field_collection_item'] = backdrop_get_schema_unprocessed('system', 'cache');
  $schema['cache_entity_field_collection_item']['description'] = 'Cache table used to store Field Collection item entity records.';

  return $schema;
}

/**
 * Implements hook_field_schema().
 */
function field_collection_field_schema($field) {
  $columns = array(
    'value' => array(
      'type' => 'int',
      'not null' => FALSE,
      'description' => 'The field collection item id.',
    ),
    'revision_id' => array(
      'type' => 'int',
      'not null' => FALSE,
      'description' => 'The field collection item revision id.',
    ),
  );
  return array(
    'columns' => $columns,
    'indexes' => array(
      'value' => array('value'),
      'revision_id' => array('revision_id'),
    ),
  );
}

/**
 * Creates the table to enable caching of Field Collection item entities.
 */
function field_collection_update_1000() {
  $table = backdrop_get_schema_unprocessed('system', 'cache');
  $table['description'] = 'Cache table used to store Field Collection item entity records.';
  if (db_table_exists('cache_entity_field_collection_item')) {
    db_drop_table('cache_entity_field_collection_item');
  }
  db_create_table('cache_entity_field_collection_item', $table);
}