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<?php
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/**
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* Implements hook_uninstall().
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*/
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function entityreference_uninstall() {
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variable_del('entityreference:base-tables');
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}
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/**
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* Implements hook_field_schema().
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*/
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function entityreference_field_schema($field) {
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if ($field['type'] == 'entityreference') {
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// Load the base table configuration from the cache.
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$base_tables = variable_get('entityreference:base-tables', array());
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$schema = array(
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'columns' => array(
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'target_id' => array(
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'description' => 'The id of the target entity.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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),
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),
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'indexes' => array(
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'target_id' => array('target_id'),
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),
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'foreign keys' => array(),
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);
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// Create a foreign key to the target entity type base type, if available.
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$entity_type = $field['settings']['target_type'];
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if (isset($base_tables[$entity_type])) {
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list($base_table, $id_column) = $base_tables[$entity_type];
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$schema['foreign keys'][$base_table] = array(
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'table' => $base_table,
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'columns' => array('target_id' => $id_column),
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);
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}
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// Invoke the behaviors to allow them to change the schema.
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foreach (entityreference_get_behavior_handlers($field) as $handler) {
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$handler->schema_alter($schema, $field);
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}
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return $schema;
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}
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}
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/**
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* Update the field configuration to the new plugin structure.
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*/
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function entityreference_update_7000() {
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// Enable ctools.
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if (!module_enable(array('ctools'))) {
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throw new DrupalUpdateException('This version of Entity Reference requires ctools, but it could not be enabled.');
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}
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// Get the list of fields of type 'entityreference'.
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$fields = array();
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foreach (field_info_fields() as $field_name => $field) {
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// Update the field configuration.
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if ($field['type'] == 'entityreference') {
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$settings = &$field['settings'];
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if (!isset($settings['handler'])) {
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$settings['handler'] = 'base';
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$settings['handler_settings']['target_bundles'] = $settings['target_bundles'];
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unset($settings['target_bundles']);
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field_update_field($field);
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}
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}
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// Update the instance configurations.
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foreach ($field['bundles'] as $entity_type => $bundles) {
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foreach ($bundles as $bundle) {
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$instance = field_info_instance($entity_type, $field_name, $bundle);
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$save = FALSE;
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if ($instance['widget']['type'] == 'entityreference_autocomplete') {
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$instance['widget']['type'] = 'entityreference_autocomplete_tags';
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$save = TRUE;
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}
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// When the autocomplete path is the default value, remove it from
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// the configuration.
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if (isset($instance['widget']['settings']['path']) && $instance['widget']['settings']['path'] == 'entityreference/autocomplete') {
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unset($instance['widget']['settings']['path']);
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$save = TRUE;
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}
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if ($save) {
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field_update_instance($instance);
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}
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}
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}
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}
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}
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/**
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* Drop "target_type" from the field schema.
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*/
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function entityreference_update_7001() {
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if (!module_exists('field_sql_storage')) {
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return;
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}
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foreach (field_info_fields() as $field_name => $field) {
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if ($field['type'] != 'entityreference') {
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// Not an entity reference field.
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continue;
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}
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// Update the field settings.
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$field = field_info_field($field_name);
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unset($field['indexes']['target_entity']);
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$field['indexes']['target_id'] = array('target_id');
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field_update_field($field);
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if ($field['storage']['type'] !== 'field_sql_storage') {
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// Field doesn't use SQL storage, we cannot modify the schema.
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continue;
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}
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$table_name = _field_sql_storage_tablename($field);
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$revision_name = _field_sql_storage_revision_tablename($field);
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db_drop_index($table_name, $field_name . '_target_entity');
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db_drop_index($table_name, $field_name . '_target_id');
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db_drop_field($table_name, $field_name . '_target_type');
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db_add_index($table_name, $field_name . '_target_id', array($field_name . '_target_id'));
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db_drop_index($revision_name, $field_name . '_target_entity');
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db_drop_index($revision_name, $field_name . '_target_id');
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db_drop_field($revision_name, $field_name . '_target_type');
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db_add_index($revision_name, $field_name . '_target_id', array($field_name . '_target_id'));
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}
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}
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/**
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* Make the target_id column NOT NULL.
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*/
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function entityreference_update_7002() {
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if (!module_exists('field_sql_storage')) {
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return;
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}
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foreach (field_info_fields() as $field_name => $field) {
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if ($field['type'] != 'entityreference') {
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// Not an entity reference field.
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continue;
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}
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if ($field['storage']['type'] !== 'field_sql_storage') {
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// Field doesn't use SQL storage, we cannot modify the schema.
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continue;
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}
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$table_name = _field_sql_storage_tablename($field);
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$revision_name = _field_sql_storage_revision_tablename($field);
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db_change_field($table_name, $field_name . '_target_id', $field_name . '_target_id', array(
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'description' => 'The id of the target entity.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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));
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}
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}
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