Good Morning,
I am new to Yii and enjoy it so far, but i got a question
I have a table tmenu, with columns mnuid, description, path, parent, mnuorder.
In this table there is a two level menu where the parent field is nullable, if null it mean this row have no parent or if numeric it’s a valid mnuid.
I wrote the code below to order the menu admin CGridView like this :
In first level mnuorder (parent IS NULL) but with all children (second level) after they parents in they own menu order
$dataProvider->sort->defaultOrder='IFNULL((SELECT mnuorder FROM tmenu b WHERE b.mnuid = t.parent), mnuorder), parent';
This code work correctly ordering my menu and simulating the two level "tree view" it should manage.
But because the order clause use a subquery, which is linked to the main query table, i have to guess that Yii is using "t" as a table alias (thanks to the error message).
Now my questions are: Is it safe to use "t.parent" in the subquery knowing this "t" alias was assigned by Yii ? Or maybe there is a safer way to do the same whithout guessing t is the alias of the main table ?
Thanks in advance and regards,
Jean
PS: find attached a screenshot of the result