function db_field_exists

1 database.inc db_field_exists($table, $field)

Checks if a column exists in the given table.

Parameters

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

string $field: The name of the field.

Return value

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

Related topics

Schema API API to handle database schemas.

22 calls to db_field_exists()

block_update_1001 in core/modules/block/block.install: Add a column for title to the block_custom table.
comment_install in core/modules/comment/comment.install: Implements hook_install().
comment_uninstall in core/modules/comment/comment.install: Implements hook_uninstall().
comment_update_1004 in core/modules/comment/comment.install: Add an Override column for automatic comment closing for individual nodes.
DatabaseRegressionTestCase::testDBFieldExists in core/modules/simpletest/tests/database_test.test: Test the db_field_exists() function.

... See full list

File

core/includes/database/database.inc, line 3061: Core systems for the database layer.

Code

function db_field_exists($table, $field) {
  return Database::getConnection()->schema()->fieldExists($table, $field);
}