This snippet guide continues in my series of simple Yii tutorials. Previous two contain basic info about MVC concept so read them as well, but they are meant for Yii v1. I started with them cca 8 years ago:
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...
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...
Following is the table structure
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;
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 !
Assume we have many categories and many posts.
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.
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 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.
in your controller.