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<?php
/**
* @file
* Schema API handling functions.
*/
/**
* @addtogroup schemaapi
* @{
*/
/**
* Indicates that a module has not been installed yet.
*/
const SCHEMA_UNINSTALLED = -1;
/**
* Returns an array of available schema versions for a module.
*
* @param string $module
* A module name.
*
* @return array|bool
* If the module has updates, an array of available updates sorted by
* version. Otherwise, FALSE.
*/
function drupal_get_schema_versions($module) {
$updates = &drupal_static(__FUNCTION__, NULL);
if (!isset($updates[$module])) {
$updates = [];
foreach (\Drupal::moduleHandler()->getModuleList() as $loaded_module => $filename) {
$updates[$loaded_module] = [];
}
// Prepare regular expression to match all possible defined hook_update_N().
$regexp = '/^(?<module>.+)_update_(?<version>\d+)$/';
$functions = get_defined_functions();
// Narrow this down to functions ending with an integer, since all
// hook_update_N() functions end this way, and there are other
// possible functions which match '_update_'. We use preg_grep() here
// since looping through all PHP functions can take significant page
// execution time and this function is called on every administrative page
// via system_requirements().
foreach (preg_grep('/_\d+$/', $functions['user']) as $function) {
// If this function is a module update function, add it to the list of
// module updates.
if (preg_match($regexp, $function, $matches)) {
$updates[$matches['module']][] = (int) $matches['version'];
}
}
// Ensure that updates are applied in numerical order.
foreach ($updates as &$module_updates) {
sort($module_updates, SORT_NUMERIC);
}
}
return empty($updates[$module]) ? FALSE : $updates[$module];
}
/**
* Returns the currently installed schema version for a module.
*
* @param string $module
* A module name.
* @param bool $reset
* Set to TRUE after installing or uninstalling an extension.
* @param bool $array
* Set to TRUE if you want to get information about all modules in the
* system.
*
* @return string|int
* The currently installed schema version, or SCHEMA_UNINSTALLED if the
* module is not installed.
*/
function drupal_get_installed_schema_version($module, $reset = FALSE, $array = FALSE) {
$versions = &drupal_static(__FUNCTION__, []);
if ($reset) {
$versions = [];
}
if (!$versions) {
if (!$versions = \Drupal::keyValue('system.schema')->getAll()) {
$versions = [];
}
}
if ($array) {
return $versions;
}
else {
return isset($versions[$module]) ? $versions[$module] : SCHEMA_UNINSTALLED;
}
}
/**
* Updates the installed version information for a module.
*
* @param string $module
* A module name.
* @param string $version
* The new schema version.
*/
function drupal_set_installed_schema_version($module, $version) {
\Drupal::keyValue('system.schema')->set($module, $version);
// Reset the static cache of module schema versions.
drupal_get_installed_schema_version(NULL, TRUE);
}
/**
* Creates all tables defined in a module's hook_schema().
*
* @param string $module
* The module for which the tables will be created.
*
* @deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct
* replacement is provided.
*
* @see https://www.drupal.org/node/2970993
* @see \Drupal\Core\Extension\ModuleInstaller::installSchema()
*/
function drupal_install_schema($module) {
@trigger_error('drupal_install_schema() is deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct replacement is provided. See https://www.drupal.org/node/2970993', E_USER_DEPRECATED);
$schema = drupal_get_module_schema($module);
_drupal_schema_initialize($schema, $module, FALSE);
foreach ($schema as $name => $table) {
\Drupal::database()->schema()->createTable($name, $table);
}
}
/**
* Removes all tables defined in a module's hook_schema().
*
* @param string $module
* The module for which the tables will be removed.
*
* @deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct
* replacement is provided.
*
* @see https://www.drupal.org/node/2970993
* @see \Drupal\Core\Extension\ModuleInstaller::uninstallSchema()
*/
function drupal_uninstall_schema($module) {
@trigger_error('drupal_uninstall_schema() is deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct replacement is provided. See https://www.drupal.org/node/2970993', E_USER_DEPRECATED);
$tables = drupal_get_module_schema($module);
_drupal_schema_initialize($tables, $module, FALSE);
$schema = \Drupal::database()->schema();
foreach ($tables as $table) {
if ($schema->tableExists($table['name'])) {
$schema->dropTable($table['name']);
}
}
}
/**
* Returns a module's schema.
*
* This function can be used to retrieve a schema specification in
* hook_schema(), so it allows you to derive your tables from existing
* specifications.
*
* @param string $module
* The module to which the table belongs.
* @param string $table
* The name of the table. If not given, the module's complete schema
* is returned.
*
* @deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct
* replacement is provided. Testing classes could use
* \Drupal\TestTools\Extension\SchemaInspector for introspection.
*
* @see https://www.drupal.org/node/2970993
* @see \Drupal\TestTools\Extension\SchemaInspector::getTablesSpecification()
*/
function drupal_get_module_schema($module, $table = NULL) {
@trigger_error('drupal_get_module_schema() is deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct replacement is provided. Testing classes could use \Drupal\TestTools\Extension\SchemaInspector for introspection. See https://www.drupal.org/node/2970993', E_USER_DEPRECATED);
// Load the .install file to get hook_schema.
module_load_install($module);
$schema = \Drupal::moduleHandler()->invoke($module, 'schema');
if (isset($table)) {
if (isset($schema[$table])) {
return $schema[$table];
}
return [];
}
elseif (!empty($schema)) {
return $schema;
}
return [];
}
/**
* Fills in required default values for table definitions from hook_schema().
*
* @param array $schema
* The schema definition array as it was returned by the module's
* hook_schema().
* @param string $module
* The module for which hook_schema() was invoked.
* @param bool $remove_descriptions
* (optional) Whether to additionally remove 'description' keys of all tables
* and fields to improve performance of serialize() and unserialize().
* Defaults to TRUE.
*
* @deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct
* replacement is provided.
*
* @see https://www.drupal.org/node/2970993
*/
function _drupal_schema_initialize(&$schema, $module, $remove_descriptions = TRUE) {
@trigger_error('_drupal_schema_initialize() is deprecated in drupal:9.2.0 and is removed from drupal:10.0.0. No direct replacement is provided. See https://www.drupal.org/node/2970993', E_USER_DEPRECATED);
// Set the name and module key for all tables.
foreach ($schema as $name => &$table) {
if (empty($table['module'])) {
$table['module'] = $module;
}
if (!isset($table['name'])) {
$table['name'] = $name;
}
if ($remove_descriptions) {
unset($table['description']);
foreach ($table['fields'] as &$field) {
unset($field['description']);
}
}
}
}
/**
* @} End of "addtogroup schemaapi".
*/
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