kohana-orm - kohana 列内省

Question

我想知道 KOHANA 模型上 $_table_columns 数组的功能。

我问这个，因为表的列是通过自省加载的，这个数组有什么用，它是属性的默认值吗？

Answer 1

$_table_columns reflects your table column structure. So if your table has 3 columns (id, name, desc), $_table_columns will be setup to array('id' => '', 'name' => '', 'desc' => '').

By default $_table_columns is an empty array. When you extend ORM with your class and don't override $_table_columns, it will be automatically filled by ORM by calling SHOW FULL COLUMNS FROM table_name command. If you want to avoid this additional DB call, you can initialize $_table_columns on your own:

class Model_User extends ORM {
   protected $_table_columns = array('id' => '', 'name' => '', 'desc' => '');
}

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