public function testGet()
{
$instance = Db::get($GLOBALS['config_database']);
$instance2 = Db::get($GLOBALS['config_database']);
$this->assertEquals($instance, $instance2);
$instance3 = Db::get($GLOBALS['config_database'], true);
$this->assertFalse($instance === $instance3);
}
/**
* Consultar los campos de la tabla en la base de datos
*
* @param string $database base de datos
* @param string $table tabla
* @param string $schema squema
* @return array
*/
protected function queryFields($database, $table, $schema = null)
{
$sql = $schema ? "DESCRIBE `{$schema}`.`{$table}`" : "DESCRIBE `{$table}`";
$describe = Db::get($database)->query($sql);
$fields = array();
while ($value = $describe->fetch(PDO::FETCH_OBJ)) {
$fields[$value->Field] = array('Type' => $value->Type, 'Null' => $value->Null != 'NO', 'Key' => $value->Key, 'Default' => $value->Default != '', 'Auto' => $value->Extra == 'auto_increment');
$this->filterCol($fields[$value->Field], $value->Field);
}
return $fields;
}
/**
* Consultar los campos de la tabla en la base de datos
*
* @param string $database base de datos
* @param string $table tabla
* @param string $schema squema
* @return array
*/
protected function queryFields($database, $table, $schema = 'public')
{
// Nota: Se excluyen claves compuestas
$describe = Db::get($database)->query("\n SELECT DISTINCT\n c.column_name AS field,\n c.udt_name AS type,\n tc.constraint_type AS key,\n c.column_default AS default,\n c.is_nullable AS null\n FROM information_schema.columns c\n LEFT OUTER JOIN information_schema.key_column_usage cu ON (\n cu.column_name = c.column_name AND cu.table_name = c.table_name AND (\n SELECT COUNT(*) FROM information_schema.key_column_usage\n WHERE constraint_name = cu.constraint_name\n ) = 1)\n LEFT OUTER JOIN information_schema.table_constraints tc ON (cu.constraint_name = tc.constraint_name AND tc.constraint_type IN ('PRIMARY KEY', 'UNIQUE'))\n WHERE c.table_name = '{$table}' AND c.table_schema = '{$schema}';\n ");
return self::describe($describe);
}