function field_sql_storage_field_storage_query

Implements hook_field_storage_query().

File

modules/field/modules/field_sql_storage/field_sql_storage.module, line 668

Code

function field_sql_storage_field_storage_query(EntityFieldQuery $query) {
    if ($query->age == FIELD_LOAD_CURRENT) {
        $tablename_function = '_field_sql_storage_tablename';
        $id_key = 'entity_id';
    }
    else {
        $tablename_function = '_field_sql_storage_revision_tablename';
        $id_key = 'revision_id';
    }
    $table_aliases = array();
    $query_tables = NULL;
    // Add tables for the fields used.
    foreach ($query->fields as $key => $field) {
        $tablename = $tablename_function($field);
        $table_alias = _field_sql_storage_tablealias($tablename, $key, $query);
        $table_aliases[$key] = $table_alias;
        if ($key) {
            if (!isset($query_tables[$table_alias])) {
                $select_query->join($tablename, $table_alias, "{$table_alias}.entity_type = {$field_base_table}.entity_type AND {$table_alias}.{$id_key} = {$field_base_table}.{$id_key}");
            }
        }
        else {
            $select_query = db_select($tablename, $table_alias);
            // Store a reference to the list of joined tables.
            $query_tables =& $select_query->getTables();
            // Allow queries internal to the Field API to opt out of the access
            // check, for situations where the query's results should not depend on
            // the access grants for the current user.
            if (!isset($query->tags['DANGEROUS_ACCESS_CHECK_OPT_OUT'])) {
                $select_query->addTag('entity_field_access');
            }
            $select_query->addMetaData('base_table', $tablename);
            $select_query->fields($table_alias, array(
                'entity_type',
                'entity_id',
                'revision_id',
                'bundle',
            ));
            $field_base_table = $table_alias;
        }
        if ($field['cardinality'] != 1 || $field['translatable']) {
            $select_query->distinct();
        }
    }
    // Add field conditions. We need a fresh grouping cache.
    drupal_static_reset('_field_sql_storage_query_field_conditions');
    _field_sql_storage_query_field_conditions($query, $select_query, $query->fieldConditions, $table_aliases, '_field_sql_storage_columnname');
    // Add field meta conditions.
    _field_sql_storage_query_field_conditions($query, $select_query, $query->fieldMetaConditions, $table_aliases, '_field_sql_storage_query_columnname');
    if (isset($query->deleted)) {
        $select_query->condition("{$field_base_table}.deleted", (int) $query->deleted);
    }
    // Is there a need to sort the query by property?
    $has_property_order = FALSE;
    foreach ($query->order as $order) {
        if ($order['type'] == 'property') {
            $has_property_order = TRUE;
        }
    }
    if ($query->propertyConditions || $has_property_order) {
        if (empty($query->entityConditions['entity_type']['value'])) {
            throw new EntityFieldQueryException('Property conditions and orders must have an entity type defined.');
        }
        $entity_type = $query->entityConditions['entity_type']['value'];
        $entity_base_table = _field_sql_storage_query_join_entity($select_query, $entity_type, $field_base_table);
        $query->entityConditions['entity_type']['operator'] = '=';
        foreach ($query->propertyConditions as $property_condition) {
            $query->addCondition($select_query, "{$entity_base_table}." . $property_condition['column'], $property_condition);
        }
    }
    foreach ($query->entityConditions as $key => $condition) {
        $query->addCondition($select_query, "{$field_base_table}.{$key}", $condition);
    }
    // Order the query.
    foreach ($query->order as $order) {
        if ($order['type'] == 'entity') {
            $key = $order['specifier'];
            $select_query->orderBy("{$field_base_table}.{$key}", $order['direction']);
        }
        elseif ($order['type'] == 'field') {
            $specifier = $order['specifier'];
            $field = $specifier['field'];
            $table_alias = $table_aliases[$specifier['index']];
            $sql_field = "{$table_alias}." . _field_sql_storage_columnname($field['field_name'], $specifier['column']);
            $select_query->orderBy($sql_field, $order['direction']);
        }
        elseif ($order['type'] == 'property') {
            $select_query->orderBy("{$entity_base_table}." . $order['specifier'], $order['direction']);
        }
    }
    return $query->finishQuery($select_query, $id_key);
}