Wiki articles in category Tutorials

To generate excel by query content, and download through any controller. You also can bind cssClass to header/odd/even rows. As for header, you even can set cssClass for each column.

$this->export2excel($excel_content,$excel_file);

in your controller.

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.

To use jui auto complete widget first add

namespace app\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.

common\components\LanguageSelector.php

<?php
namespace common\components;

Assume we have many categories and many posts.

This article discusses how one can run a long task in background in yiiframework 1.1 using Ajax technique.

Welcome, all of you !

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.

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

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.

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

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...

This document is intended for an audience already familiar with Yii2. It's meant to bring together all information related to Yii 3 in one place to make it easier to get on track.

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...

• 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...