Yii CListView Search with Subqueries - php

Question

I am using a CListView to display my data on a page. I have a textbox for searching keywords in the query.
In my query where I build my CActiveDataProvider I have some subqueries. For Example:
$criteria = new CDbCriteria;
$criteria->select = array('
Lessons.id,
Lessons.name,
(SELECT
COALESCE(CONCAT(u.first_name, " ", u.last_name), last_name, first_name)
FROM
users AS u
WHERE
u.user_token = Lessons.instructor_id
) as instructor_name
');
My model for the above query does have a class variable called $instructor_name.
When I enter data into the textbox I then run this piece of code to join another table for searching.
if ( !empty($query) ) {
$criteria->with = array('packages');
$criteria->compare( 'packages.contents', $query, true);
$criteria->together = true;
}
The results when running a search query do not return the instructor_name data from the subquery.
Any ideas on what is happening here to prevent my subquery data from loading? Thank you in advance.

Answer 1

To do this in a more CActiveRecord way (and get the results your looking for), try the following:
1 - Add instructor relation to Lesson model that references the User table (so now you will be able to do $lesson->instructor)
'instructor'=>array(self::BELONGS_TO, 'User', 'instructor_id'),
2 - Add a column/expression into the select clause in your Lesson::search() method that represents the concatenated instructor_name - something like:
$criteria->select = array('
Lessons.id,
Lessons.name,
COALESCE(CONCAT(instructor.first_name, " ", instructor.last_name), last_name, first_name) AS instructor_name
...etc
3 - Add instructor to the "with" part of the search criteria so that the instructor info is joined into the query
$criteria->with = array('packages', 'instructor');