Define the Field API schema for a field structure.
This hook MUST be defined in .install for it to be detected during installation and upgrade.
$field: A field structure.
An associative array with the following keys:
Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.
function hook_field_schema($field) {
if ($field['type'] == 'text_long') {
$columns = array(
'value' => array(
'type' => 'text',
'size' => 'big',
'not null' => FALSE,
),
);
}
else {
$columns = array(
'value' => array(
'type' => 'varchar',
'length' => $field['settings']['max_length'],
'not null' => FALSE,
),
);
}
$columns += array(
'format' => array(
'type' => 'varchar',
'length' => 255,
'not null' => FALSE,
),
);
return array(
'columns' => $columns,
'indexes' => array(
'format' => array(
'format',
),
),
'foreign keys' => array(
'format' => array(
'table' => 'filter_format',
'columns' => array(
'format' => 'format',
),
),
),
);
}