Prepare data before query

Yii 2.0 General Discussions
1

Where can I prepare data before performing query?

I precisely need to make a check:


if (!empty($this->id_district) AND $this->district->id_province != $this->id_province)

{

   $this->id_district = NULL;

}

This should be run every time before filtering data for grid widget. (Test if user earlier already picked district from different province).

In Yii 1 I had it placed in search method, but where to go with it now?

2

You can put it in your search model.

You can generate your search model using Gii tool

3

Thank you for help. I misunderstood search with query class, but finally figured it out.