Wiki articles

"By Example" cookbook pages will provide coding examples for many of the commonly used classes within Yii. We will try to provide as many usage examples as possible for keep these pages as helpful as possible.

This is a reference to be used for Model rule validation and is compiled from the Yii documentation and code. The purpose is to have all the information gathered in one place instead of scattered. This reference is not an intro. See The Definitive Guide to Yii, Declaring Validation Rules for a tutorial.

First declare an attribute to store the file name in the model class (either a form model or an active record model). Also declare a file validation rule for this attribute to ensure a file is uploaded with specific extension name.

This article will explain how to create a REST API with the Yii framework.

Hi. This is first article with my Yii v1 tutorial. I had to split it into 2 articles as there's limited length of texts on Wiki. So once you understand basics, you can read the 2nd article here: Yii for beginners 2.

Often you'll need a form with two dropdowns, and one dropdown's values will be dependent on the value of the other dropdown. Using Yii's built-in AJAX functionality you can create such a dropdown.

Set your messages in a controller:

Yii::app()->user->setFlash('success', "Data1 saved!");
Yii::app()->user->setFlash('error', "Data2 failed!");
Yii::app()->user->setFlash('notice', "Data3 ignored.");

The easiest way to update content in AJAX is to use the renderPartial method.

Assume we want to use a single HTML form to collect input for both model A and model B, and we want to display input errors (if any) in the same error summary box. We can define the following action code:

The easiest way to customize look and behaviour of them is to use series of CButtonColumn properties, like: updateButtonImageUrl (path to image for update button), updateButtonLabel (label for the update button; not HTML-encoded), updateButtonOptions (HTML options for this button, used in the way as many htmlOptions property for many widgets) and updateButtonUrl (a PHP expresion th...

One of the things you will find tricky to implement is the the sorting and filtering of a GridView's column that displays related model data.

Maybe it looks simple, but some time ago I need some time to find a solution of this case. I finally got it, and I want to share that I also experienced such cases. So that it can make reference.

• Validate the user input (see below for details).
• Protect (escape) your application output according to context (see below for a few output types, mostly HTML and SQL).
• Test your application in debug mode.
  Set the constant YII_DEBUG to true (by default, it is defined in index.php) and put alongside error_reporting(E_ALL);. Then errors and warnings will stop the execution an...

By popular demand, today I will be revisiting my previous Yii Framework 2 Getting Started Guide and updating it with what is currently available in the Yii Framework 2 Repository. Provide here is an super simple example CRUD application that will help you get started using the framework.

• Yii v1 for beginners
• Yii v1 for beginners 2
• Yii v2 snippet guide I
• Yii v2 snippet guide II
• [Yii v2 snippet guide III](https://www.yiifram...

Today I will show you how to handle multiple file upload step by step.

Some times the core validation rules provided by Yii won't satisfy all your needs, so you'll need to create your very own validation rule.

Lets say we have two models and relation between them:

This wiki explains how to add calculated fields into your Yii Framework 2.0 gridview with filtering and sorting.

Here's a quick tip to dump the SQL for query.