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As seen in this post, Yii doesn't enforce how language is set and maintained within the session.

In case of a multilingual application, one might consider it a reasonable approach to store the preferred language of the user in a session variable, and after that, every time a page is requested, to check this session variable and render the page in the indicated language. This tutorial shows a Yii-way of doing this. We implement an event handler for the onBeginRequest event; as the name of the event suggests, this event handler will be called at the beginning of each request, so its a good place to check whether a language is provided (via post, session or cookie) and set the application language accordingly. We also implement a simple Language-Selector Widget, which can render the language options as ajax-links or as a drop-down list.

This little tutorial explains a way how you can retrieve more parameters from Yii::app()->user by adding a component that extends CWebUser and retrieves the user information from database table named User.

This example uses a MySQL DB with a table named tree with the fields id, name, and parent_id. The parent_id will be NULL for root elements. The SQL is kept simple (no autoinc, no FK, etc).

I saw many posts that community newbie is confuse in image/photo upload with random name. so I post this topic covering all useful things regarding to image/photo upload(not covering image attribute related functionality)

Sometimes we get lost trying to search by a HAS_MANY relation using CActiveRecord or CActiveDataProvider. This article is a series of drills that try to describe the practical techniques of searching by a HAS_MANY relation.

I would like to provide you a quick tip on how to implement user level access to your Yii applications.

Following on from international dates, I also wanted times in the local timezone and format. This was a little more tricky but I think I've got a solution. This is only really appropriate if you have an international app.

I've seen many tickets regarding how to show friendly delete confirmation using CGridView's CButtonColumn in ajax request. If you are using relational database, after producing CRUD functionality when you try to delete a record in ajax mode which has child record it can't be deleted and you can see the ajax loader forever. By this way you can't show the users if a record has been successfully deleted or if there are some problem in flash style (setFlash() / getFlash())

If you have to display a overview of related data in a table, you can use the CListView, create your view with table/tr/td tags and implement db-queries in the view to display detaildata of the current (master-)record.