function db_index_exists

1 database.inc db_index_exists($table, $name)

Checks if an index exists in the given table.

Parameters

string $table: The name of the table in Backdrop (no prefixing).

string $name: The name of the index in Backdrop (no prefixing).

Return value

bool: TRUE if the given index exists, otherwise FALSE.

Related topics

Schema API API to handle database schemas.

6 calls to db_index_exists()

DatabaseRegressionTestCase::testDBIndexExists in core/modules/simpletest/tests/database_test.test: Test the db_index_exists() function.
file_update_1003 in core/modules/file/file.install: Add a type column to the file_managed table, and add a file_metadata table.
redirect_update_1001 in core/modules/redirect/redirect.install: Rename the language column to langcode, drop inactive redirects.
redirect_update_1004 in core/modules/redirect/redirect.install: Fix redirect table schema of upgraded sites.
taxonomy_update_1002 in core/modules/taxonomy/taxonomy.install: Drop the old taxonomy vocabulary table.

... See full list

File

core/includes/database/database.inc, line 3033: Core systems for the database layer.

Code

function db_index_exists($table, $name) {
  return Database::getConnection()->schema()->indexExists($table, $name);
}