Create an SQL string for a field to be used in table creation or alteration.

Before passing a field out of a schema definition into this function it has to be processed by db_processField().

Parameters

$name: Name of the field.

$spec: The field specification, as per the schema data structure format.

2 calls to DatabaseSchema_sqlite::createFieldSql()

DatabaseSchema_sqlite::addField in includes/database/sqlite/schema.inc

Add a new field to a table.

DatabaseSchema_sqlite::createColumsSql in includes/database/sqlite/schema.inc

Build the SQL expression for creating columns.

File

includes/database/sqlite/schema.inc, line 147

Class

DatabaseSchema_sqlite

Code

protected function createFieldSql($name, $spec) {
 if (!empty($spec['auto_increment'])) {
 $sql = $name . " INTEGER PRIMARY KEY AUTOINCREMENT";
 if (!empty($spec['unsigned'])) {
 $sql .= ' CHECK (' . $name . '>= 0)';
 }
 }
 else {
 $sql = $name . ' ' . $spec['sqlite_type'];
 if (in_array ($spec['sqlite_type'], array(
 'VARCHAR',
 'TEXT',
 )) && isset($spec['length'])) {
 $sql .= '(' . $spec['length'] . ')';
 }
 if (isset($spec['not null'])) {
 if ($spec['not null']) {
 $sql .= ' NOT NULL';
 }
 else {
 $sql .= ' NULL';
 }
 }
 if (!empty($spec['unsigned'])) {
 $sql .= ' CHECK (' . $name . '>= 0)';
 }
 if (isset($spec['default'])) {
 if (is_string ($spec['default'])) {
 $spec['default'] = "'" . $spec['default'] . "'";
 }
 $sql .= ' DEFAULT ' . $spec['default'];
 }
 if (empty($spec['not null']) && !isset($spec['default'])) {
 $sql .= ' DEFAULT NULL';
 }
 }
 return $sql;
}

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