Wiki articles

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

This tutorial shows you how to safely remove records between relationships.

I have been working on a REST API using the excellent tools provided by Yii2. My problem was that I have to differentiate between empty values and null values. In other words, <elem></elem> is different from null as it represents an empty string. Also, although some use <elem/> to represent a null value it should still be interpreted as an empty string. In other cases, the absence of the eleme...

Working with scenarios, with models that can receive many modifications in their rules or structures as development evolves, can create disruptions in the rescue process.

Following is the table structure

tblgroups

CREATE TABLE IF NOT EXISTS `tblgroups` (
  `id` int(11) NOT NULL,
  `groupname` varchar(150) NOT NULL,
  `status` tinyint(1) NOT NULL DEFAULT '1' COMMENT '1=Acitve,2=Inactive',
  `date` datetime NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

tblcontacts

Bootstrap tabs gets unselected/inactive when user navigates to other page and comes back. How to make bootstrap tabs remain active/selected after navigating to different web pages.

Welcome, all of you !

It is convenient to use the same identification attribute, say info, in all of the active records of your application. It should be a virtual read-only attribute defined by a getter method, its label being the model name.

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.

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

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

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

Hello,
If you want to give extra attention for some specific delete actions and you don't want to override whole yii.confirm JS method here is what you can do:
(I've only put the ActionColumn part of the GridView here to just give you the idea)

Assume we have many categories and many posts.

common\components\LanguageSelector.php

<?php
namespace common\components;

It's well known that there are Lazy Loading approach and Eager Loading approach in the relational query. But it's very important to know how the Eager Loading approach works in Yii 2. It has changed drastically from that of Yii 1.1, and there are common misunderstandings about it in the community.

namespace app\components;

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