How to convert custom query to CDbCriteria - php

Question

I have the following query:
select
`t`.`id` AS `id`,
`rm`.`role_id` AS `role_id`,
`t`.`id` AS `sequence`,
`t`.`parent_id` AS `parent_id`,
`t`.`label` AS `label`,
`t`.`order` AS `order`,
(case
when isnull(`rm`.`id`) then 0
else 1
end) AS `description`,
`tb`.`label` AS `parent_label`
from
((`tbl_menu` `t`
left join `tbl_menu` `tb` ON ((`t`.`parent_id` = `tb`.`id`)))
left join `tbl_role_menu` `rm` ON ((`rm`.`menu_id` = `t`.`id`))) and rm.role_id = $role_id
where
isnull(`tb`.`label`)
union select
`t`.`id` AS `id`,
`rm`.`role_id` AS `role_id`,
`t`.`parent_id` AS `parent_id`,
`t`.`parent_id` AS `sequence`,
`t`.`label` AS `label`,
`t`.`order` AS `order`,
(case
when isnull(`rm`.`id`) then 0
else 1
end) AS `description`,
`tb`.`label` AS `parent_label`
from
((`tbl_menu` `t`
left join `tbl_menu` `tb` ON ((`t`.`parent_id` = `tb`.`id`)))
left join `tbl_role_menu` `rm` ON ((`rm`.`menu_id` = `t`.`id`))) and rm.role_id = $role_id
where
(`tb`.`label` is not null)
order by `sequence` , `parent_id` , `label`
On both queries, on the second left join I have to pass a variable $role_id. Currently, I have this query on a view but if a try passing a criteria condition, the resulting query is
select * form menu_links where role_id = $role_id
Being menu_links the name of the view. This doesn't give me the result I want. I need a way to add this parameter to this query and transform it into a CDbCriteria in order to pass it to a CGridView. Any help?
Thanks.

Answer 1

Consider using CArrayDataProvider.
CArrayDataProvider acts as a wrapper around a simple associative array and CGridView won't know the difference. You can even apply pagination, sorting etc. An example showcasing these features can be found in the documentation:
$rawData=Yii::app()->db->createCommand('SELECT * FROM tbl_user')->queryAll();
$dataProvider=new CArrayDataProvider($rawData, array(
'id'=>'user',
'sort'=>array(
'attributes'=>array(
'id', 'username', 'email',
),
),
'pagination'=>array(
'pageSize'=>10,
),
));

Answer 2

I give you a simple example you will figure out how to apply it to you case
$sql= "select * form menu_links where role_id = :role_id";
$role_id='Something you will get from your could';
$command = Yii::app()->db->createCommand($sql);
// And finally the command you can replace the role id with varibale is
$command->bindParam(":role_id", $role_id, PDO::PARAM_STR);
$result = $command->queryAll();
I hope this was what you were asking.