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db_column_exists

Versions
6 – 7
db_column_exists($table, $column)

Check if a column exists in the given table.

Related topics

Schema API
A Drupal schema definition is an array structure representing one or more tables and their related keys and indexes. A schema is defined by hook_schema(), which usually lives in a modulename.install file.

▸ 3 functions call db_column_exists()

▾ 3 functions call db_column_exists()

system_update_6051 in modules/system/system.install
Create a signature_format column.
user_update_7002 in modules/user/user.install
Convert user time zones from time zone offsets to time zone names.
user_update_7004 in modules/user/user.install
Add the user's pictures to the {file} table and make them managed files.

Code

includes/database/database.inc, line 2328

<?php
function db_column_exists($table, $column) {
  return Database::getConnection()->schema()->columnExists($table, $column);
}
?>
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