Gets the column schema for a given Sqlite3 table.
A column type may not always be available, i.e. when during creation of the column no type was declared. Those columns are internally treated by SQLite3 as having a `NONE` affinity. The final schema will contain no information about type and length of such columns (both values will be `null`).

Parameters

  • mixed $entity Specifies the table name for which the schema should be returned, or the class name of the model object requesting the schema, in which case the model class will be queried for the correct table name.
  • array $meta

Returns

array Returns an associative array describing the given table's schema, where the array keys are the available fields, and the values are arrays describing each field, containing the following keys: - `'type'`: The field type name
This method can be filtered.

Source

						public function describe($entity, array $meta = array()) {
		$params = compact('entity', 'meta');
		$regex = $this->_regex;
		return $this->_filter(__METHOD__, $params, function($self, $params) use ($regex) {
			extract($params);

			$name = $self->invokeMethod('_entityName', array($entity, array('quoted' => true)));
			$columns = $self->read("PRAGMA table_info({$name})", array('return' => 'array'));
			$fields = array();

			foreach ($columns as $column) {
				preg_match("/{$regex['column']}/", $column['type'], $matches);

				$fields[$column['name']] = array(
					'type' => isset($matches['type']) ? $matches['type'] : null,
					'length' => isset($matches['length']) ? $matches['length'] : null,
					'null' => $column['notnull'] == 1,
					'default' => $column['dflt_value']
				);
			}
			return $fields;
		});
	}