public static function current()
{
if (self::$defs === NULL) {
self::$defs = new FieldDefinitions();
}
return self::$defs;
}
/**
* This function gets the description of a table from the RDBMS and then constructs
* an array of Fields and returns them as required
*/
public function setupFields()
{
/*if(!$fields = Session::getRegistered($this->table_name.'_field_array'))
{*/
try {
$fields = FieldDefinitions::current()->definitionsForTable($this->table_name);
} catch (Exception $exc) {
if (!file_exists($this->fieldCachePath())) {
$query = SimpleQuery::create('describe ' . $this->table_name);
$fields = array();
while ($row = $query->next()) {
$type_array = preg_split('/\\(/', $row['Type']);
if ($row['Extra'] == 'auto_increment') {
$type = 'Field::T_AUTO';
} else {
if ($row['Key'] == 'PRI') {
$type = 'Field::T_PRIMARY_KEY_' . strtoupper($type_array[0]) . '';
} else {
$type = 'Field::T_' . strtoupper($type_array[0]) . '';
}
}
eval('$field_type = ' . $type . ';');
$field = new Field($this->table_name, $row['Field'], $field_type);
$fields[$row['Field']] = $field;
if ($row['Default'] || !$row['Default'] && is_numeric($row['Default'])) {
$field->setValue($row['Default']);
}
}
@unlink($this->fieldCachePath());
file_put_contents($this->fieldCachePath(), serialize($fields));
@chmod($this->fieldCachePath(), 0664);
} else {
if (file_exists($this->fieldCachePath())) {
$fields = unserialize(file_get_contents($this->fieldCachePath()));
}
}
//Session::register($this->table_name.'_field_array',$fields);
FieldDefinitions::current()->addDefinitionsForTable($this->table_name, $fields);
}
return $fields;
}