Wiki articles in category How-tos

1. Create Extension in yii2.

There are a few issues with the other solutions I originally used that I found from other wikis. I address the issues I had in this much simpler and shorter way. I am also going to explain what is going into way more detail than others to help people understand what's going on.

This behavior enable you to command the RBAC via console. This avoids you to install a entire rbac graphic toolkit to set up some rules in the rbac, maybe you are running inside a ssh console.

When one needs to select a record in a table that do not have related records through a relation, it is generally suggested to use a subquery. Personnaly, I prefer a high level approach, and I have a method to do it with scopes.

We probably have all used a virtual attribute (model function) to retrieve complex or related data for a CGridView column:

Finding good looking, working and not abandoned gallery manager for Yii 1.x application is a tough task. Out of all I found, only yii-gallery-manager extension looked promising. But, after downloading it, it turned out, that there are certain unusual things to do, to include it in your application. So, I decided to write this article...

Then, we write this in the config > main.php:

If you develop rather complex applications with Yii2, you might already be familiar with yii2-app-advanced application template. Well, the template is awesome and provides high flexibility regarding code/configuration sharing among parts of an application.

This is to show you how to use Yii2 flash messages with Kartik Growl (bootstrap notify wrapper).

MailGun.php Class

Sometimes we need to create our custom exception and show it to the end user through a friendly way . In this article, I'm showing how to do it using CJuidialog.

During development and depending on your setup you may need to use the options forceCopy or linkAssets of the asset manager to work around possible file-system and permission issues.

By default, Yii 2.0 chooses to use the non-minified version of Jquery and Bootstrap files (CSS and JS). However, there's a simple way to indicate Yii to use the minified version.

The number of languages supported by the standard CJuiDatePicker implementation is limited and the language code to use is different from the application's language code. This Wiki shows how to improve on that.

I am going to show you an effective way to validate the uniqueness of multiple columns.

In this wiki I will show how could wo pass the third parameter to UserIdentity on login authenticate. So we can do separate login authentcation from two or more different models from single login form.

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

Clearing CGridView filters and sort orders from the web pages, is usefull for the end user. Yii does not seem to propose a standard method. Furthermore, this is especially usefull when filters are "remembered" in the user's session.

The problem is not new: after setting some filters in a grid (typically in admin view), and gone to another page, returning in the grid's page I would like to find the filters with previous setting mantained.

When using themes you want to changes some of the translations specifically to the theme while keeping the standard translations for most of the text. Duplicating the main translation file is a headache for maintainance. This how to provides a solution.