Wiki articles

Here is a small guide how to get console commands running inside modules & extensions. For this guide I used a fresh yii2 basic application template.

The scenario in which this wiki can be useful is when you have to send an (huge) array of model ids and perform a time consuming computation with it like linking every model to other models. The idea is to split the array into smaller arrays and perform sequential ajax requests, showing the calculation progress using a [Bootstrap Progress bar](https://www.yiiframework.com/extension/yiisoft/yii2-bo...

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 nested set behaviour is an approach to store hierarchical data in relational databases. For example, if we have many categories for our product or items. One category can be a "parent" for other categories, means that one category consists of more than one category. The model can be drawn using a "tree" model. There are other approaches available but what we will learn in this article is speci...

• 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...

Welcome, all of you !

Here is a example on how to use Pjax with GridView (yii\grid\GridView) and ActiveForm (yii\widgets\ActiveForm) widgets in Yii2.

\yii\mail\BaseMailer::useFileTransport is a great tool. If you activate it, all emails sent trough this mailer will be saved (by default) on @runtime/mail instead of being sent, allowing the devs to inspect thre result.

If you're using a lot of bower and npm assets with Yii 2.0 you might encounter long running composer update tasks.

There are some very advanced grids in the Yii2 community, specifically Kartik's amazing gridview extensions but they all designed for interactive screen use.

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.

Uploading files in a webapp can be extremely tricky and sometimes the quickest way to do it is to store the file directly in the webserver or into a DNS (like Amazon S3) and then to save the link and the metadata inside a table in the DB. The thing is that you'll have to deal with file permissions, server storage, file management and so on (which is perfectly fine, by the way).

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One of the common requests I see in the forum is how to implement RBAC. While you can implement Yii 2's built-in RBAC, that might be too much for developers who are just starting with Yii 2 or have simpler needs. Sometimes you are looking for a fast solution and just want two flavors, user and admin. And even if you will eventually need more, you can use these methods as a starting point for devel...

I am writing this guide because I struggled to find a resource that included ALL of the necessary steps to completely separate the frontend from the backend. After reading guides like Configuring different sessions for backend and frontend in yii-advanced-app and [yii2 configuring d...

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

After getting lot's of error and don't know how to perform multiple images api in yii2 finally I get it today

This How-To is useful if you are planning to move the Yii vendor directory outside the default location.

There are numerous usability problems:

Assume we have many categories and many posts.