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<?php
// $Id$
/**
* @file
* Install, update and uninstall functions for the field_sql_storage module.
*/
/**
* Implements hook_schema().
*/
function field_sql_storage_schema() {
$schema = array();
// Dynamic (data) tables.
if (db_table_exists('field_config')) {
$fields = field_read_fields(array(), array('include_deleted' => TRUE, 'include_inactive' => TRUE));
drupal_load('module', 'field_sql_storage');
foreach ($fields as $field) {
if ($field['storage']['type'] == 'field_sql_storage') {
$schema += _field_sql_storage_schema($field);
}
}
}
return $schema;
}
/**
* Utility function: write field data directly to SQL storage.
*
* This function can be used for databases whose schema is at field module
* version 7000 or higher.
*
* @ingroup update-api-6.x-to-7.x
*/
function _update_7000_field_sql_storage_write($entity_type, $bundle, $entity_id, $revision_id, $field_name, $data) {
$table_name = "field_data_{$field_name}";
$revision_name = "field_revision_{$field_name}";
db_delete($table_name)
->condition('entity_type', $entity_type)
->condition('entity_id', $entity_id)
->execute();
db_delete($revision_name)
->condition('entity_type', $entity_type)
->condition('entity_id', $entity_id)
->condition('revision_id', $revision_id)
->execute();
$columns = array();
foreach ($data as $langcode => $items) {
foreach ($items as $delta => $item) {
$record = array(
'entity_type' => $entity_type,
'entity_id' => $entity_id,
'revision_id' => $revision_id,
'bundle' => $bundle,
'delta' => $delta,
'language' => $langcode,
);
foreach ($item as $column => $value) {
$record[_field_sql_storage_columnname($field_name, $column)] = $value;
}
$records[] = $record;
// Record the columns used.
$columns += $record;
}
}
if ($columns) {
$query = db_insert($table_name)->fields(array_keys($columns));
$revision_query = db_insert($revision_name)->fields(array_keys($columns));
foreach ($records as $record) {
$query->values($record);
if ($revision_id) {
$revision_query->values($record);
}
}
$query->execute();
$revision_query->execute();
}
}
/**
* @addtogroup updates-6.x-to-7.x
* @{
*/
/**
* Field SQL storage update version placeholder.
*/
function field_sql_storage_update_7000() {
// Some update helper functions (such as
// _update_7000_field_sql_storage_write()) modify the database directly. They
// can be used safely only if the database schema matches the field module
// schema established for Drupal 7.0 (i.e. version 7000). This function exists
// solely to set the schema version to 7000, so that update functions calling
// those helpers can do so safely by declaring a dependency on
// field_sql_storage_update_7000().
}
/**
* Remove the field_config_entity_type table and store 'entity_type' strings.
*/
function field_sql_storage_update_7001(&$sandbox) {
if (!isset($sandbox['progress'])) {
// Collect current etids.
$sandbox['etids'] = db_query('SELECT etid, type FROM {field_config_entity_type}')->fetchAllKeyed();
// Collect affected tables: field data, field revision data, 'deleted'
// tables.
$sandbox['tables'] = array();
$results = db_select('field_config', 'fc', array('fetch' => PDO::FETCH_ASSOC))
->fields('fc')
->condition('storage_module', 'field_sql_storage')
->execute();
foreach ($results as $field) {
if ($field['deleted']) {
$sandbox['tables']["field_deleted_data_{$field['id']}"] = 'data';
$sandbox['tables']["field_deleted_revision_{$field['id']}"] = 'revision';
}
else {
$sandbox['tables']["field_data_{$field['field_name']}"] = 'data';
$sandbox['tables']["field_revision_{$field['field_name']}"] = 'revision';
}
}
reset($sandbox['tables']);
$sandbox['total'] = count($sandbox['tables']);
$sandbox['progress'] = 0;
}
if ($sandbox['tables']) {
// Grab the next table to process.
$table = key($sandbox['tables']);
$type = array_shift($sandbox['tables']);
if (db_table_exists($table)) {
// Add the 'entity_type' column.
if (!db_field_exists($table, 'entity_type')) {
$column = array(
'type' => 'varchar',
'length' => 128,
'not null' => TRUE,
'default' => '',
'description' => 'The entity type this data is attached to.',
);
db_add_field($table, 'entity_type', $column);
// Populate the 'entity_type' column based on the 'etid' column.
foreach ($sandbox['etids'] as $etid => $entity_type) {
db_update($table)
->fields(array('entity_type' => $entity_type))
->condition('etid', $etid)
->execute();
}
// Index the new column.
db_add_index($table, 'entity_type', array('entity_type'));
}
// Use the 'entity_type' column in the primary key.
db_drop_primary_key($table);
$primary_keys = array(
'data' => array('entity_type', 'entity_id', 'deleted', 'delta', 'language'),
'revision' => array('entity_type', 'entity_id', 'revision_id', 'deleted', 'delta', 'language'),
);
db_add_primary_key($table, $primary_keys[$type]);
// Drop the 'etid' column.
if (db_field_exists($table, 'etid')) {
db_drop_field($table, 'etid');
}
}
// Report progress.
$sandbox['progress']++;
$sandbox['#finished'] = min(0.99, $sandbox['progress'] / $sandbox['total']);
}
else {
// No more tables left: drop the field_config_entity_type table.
db_drop_table('field_config_entity_type');
// Drop the previous 'field_sql_storage_ENTITYTYPE_etid' system variables.
foreach ($sandbox['etids'] as $etid => $entity_type) {
variable_del('field_sql_storage_' . $entity_type . '_etid');
}
// We're done.
$sandbox['#finished'] = 1;
}
}
/**
* Fix primary keys in field revision data tables.
*/
function field_sql_storage_update_7002() {
$results = db_select('field_config', 'fc', array('fetch' => PDO::FETCH_ASSOC))
->fields('fc')
->condition('storage_module', 'field_sql_storage')
->execute();
foreach ($results as $field) {
// Revision tables of deleted fields do not need to be fixed, since no new
// data is written to them.
if (!$field['deleted']) {
$table = "field_revision_{$field['field_name']}";
db_drop_primary_key($table);
db_add_primary_key($table, array('entity_type', 'entity_id', 'revision_id', 'deleted', 'delta', 'language'));
}
}
}
/**
* @} End of "addtogroup updates-6.x-to-7.x"
*/
|
