Wiki articles in category How-tos

Register an event handler at Object-Level

Let's assume we have two models: Customer and Supplier and we want both to log in. Yii is quite flexible when it comes to authentication and authorization so it's possible.

Yii 2.0 comes with a formatter component to format dates, numbers, and other values for international users according to their locale. This is very useful for displaying data. When working with incoming data or when using enhanced input methods like the [MaskedInput widget](https://www.yiiframework.com/doc/api/2.0/yii-widgets-maskedinp...

This article is for those who have dealt with the complexity of Elasticsearch or any other indexing machines and are looking for an easier way to index the existing database without additional effort.

Normally, after clicking the delete button in gridview, the record will be deleted and the page will refresh, but the page number in query string is lost. This is not always the case we expect.

The Problem: Yii2 utilizes by default UserIdentity configured in config/web.php for connection, this object apply one table to authentication ('identityClass' => 'app\panel\models\User'). How to authentication from diferent tables? Solution: Create instances in web.php to uses UserIdentify. eg:

Small companies and startups use cheap email services or even Cpanel's mail services which are less secure and compete directly with bigger email providers like Microsoft with Outlook and Google with Gmail. This creates a problem when you try to use their services to send/receive emails from this cheap services. <img width="750" src="https://static.techspot.com/fileshost/newspics3/2017/google-clo...

We all need SEO friendly URLs for our projects. its not always good to call route with params so we can generalise it for all models using a common function.

Upon creating my Yii2 Members System, I have ran into a few snags along the way that forced me to extend and bend Yii2 to my will.

Using a version control system, like Git, is nice. However, when building an extension from scratch and loading it via Composer, it adds a lot of pain in the butt steps. You have to commit your changes, update composer to pull them over, then notice there is an error, fix, commit, update. repeat.. I don't want all my baby steps under Git. Sure, I could edit my commit history, but c'mon. Just let m...

The CRUD generator of Gii has done a wonderful job for you, and you already have a list of items in the "index" page and a detailed view of a specified item in the "view" page.

I just chased my tail around for a bit today. I got lost with setting the status of all inputs, and banging my head on why the "validate" function just wasn't working.

A Yii Framework 2 component for using assets in different environments (Local/CDNs)

https://github.com/marciocamello/yii2-app-advanced-sh

It can happen that you work in development environment and you make changes to database tables structures, adding tables, or changing fields.

I've read many comments that it's not possible to install Yii 2 advanced on a shared hosting environment, as it has two webroots. This is partially true.

The Google mapping extension by Dos Amigos (link) is really great but there are difficulties with Google maps when you want to manipulate your map object with Ajax.

It's easy to execute migration locally on XAMPP using cmd, but on server where you script is it's little bit harder.

There are numerous usability problems:

I was playing around with another PHP framework which I didn't really liked anyway but it had simple and nice integration for PHP built in web server so I decided to write one for Yii (since this is my primary PHP framework)