Yii join two models - php

Question

I've got two mysql tables:
1. prices
2. details
Table Prices
ID | DATE | CODE | PRICE
1 |2014-01-01 | AAA1 | 90.123
2 |2014-01-01 | AAB1 | 50.113
3 |2014-01-01 | AAC1 | 48.621
4 |2014-01-02 | AAA1 | 91.123
5 |2014-01-02 | AAB1 | 51.113
6 |2014-01-02 | AAC1 | 41.621
Table Details
CODE | NAME | DESCRIPTION
AAA1 | andria | A very good...
AAB1 | anasta | A very good...
AAC1 | simple | A very good...
Models:
Prices
public function relations(){
return array(
'code' => array(self::BELONGS_TO, 'details', 'code'),
);
}
Details
public function relations(){
return array(
'code' => array(self::HAS_MANY, 'prices', 'code'),
);
}
Here's the SQL code I want to execute:
SELECT * FROM prices a
JOIN (SELECT * FROM details) b
WHERE a.DATE=(SELECT MAX(DATE) FROM prices) AND a.code = b.code
My controllers:
$prices=new CActiveDataProvider('prices', array(
'criteria'=>new CDbCriteria (array(
'select'=>'code,date,close',
'condition'=>'date=(SELECT MAX(date) FROM prices)'
)),
));
$this->render('index',array(
'prices'=>$prices
));
index.php:
<?php
$this->widget('bootstrap.widgets.TbGridView', array(
'dataProvider'=>$prices,
'template'=>"{items}",
'enablePagination' => false,
'columns'=>array(
array('name'=>'code', 'header'=>'Code'),
array('name'=>'name', 'header'=>'Name'),
array('name'=>'close', 'header'=>'Close'),
),
)); ?>
With this controller commands, I can get the data from table prices, but I can't get the data from table details.

Answer 1

Take a look at the with part of the criteria: http://www.yiiframework.com/doc/api/1.1/CDbCriteria#with-detail
I think your code should look something like this (untested):
$prices=new CActiveDataProvider('prices', array(
'criteria'=>new CDbCriteria (array(
'select'=>'code,date,close',
'with' => 'details',
'condition'=>'date=(SELECT MAX(date) FROM prices)'
)),
));

Answer 2

you already have reliation in Model. So do query like this in your controller
$prices=new CActiveDataProvider('prices', array(
'criteria'=>new CDbCriteria (array(
'condition'=>'date=(SELECT MAX(date) FROM prices)'
)),
));
In View just use
$data->code->name
$data->code->description

Answer 3

Here's what I change:
index.php
<?php
$this->widget('bootstrap.widgets.TbGridView', array(
'dataProvider'=>$prices,
'template'=>"{items}",
'enablePagination' => false,
'columns'=>array(
array('name'=>'code', 'header'=>'Code'),
array('name'=>'name', 'header'=>'Name', 'value'=>'$data->details->name'),
array('name'=>'close', 'header'=>'Close'),
),
)); ?>
Models Prices
public function relations(){
return array(
'details' => array(self::BELONGS_TO, 'Stocks_details', 'code'),
);
}