function drupal_get_module_schema

drupal_get_module_schema($module, $table = NULL)

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.

Parameters

string $module: The module to which the table belongs.

string $table: The name of the table. If not given, the module's complete schema is returned.

Related topics

Schema API

API to handle database schemas.

File

core/includes/schema.inc, line 156

Schema API handling functions.

Code

function drupal_get_module_schema($module, $table = NULL) {
  // Load the .install file to get hook_schema.
  module_load_install($module);
  $schema = \Drupal::moduleHandler()->invoke($module, 'schema');

  if (isset($table)) {
    if (isset($schema[$table])) {
      return $schema[$table];
    }
    return array();
  }
  elseif (!empty($schema)) {
    return $schema;
  }
  return array();
}