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...
Register an event handler at Object-Level
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...
Let's assume we have two models: Customer and Supplier and we want both to log in. Yii is quite flexible when it comes to authentication and authorization so it's possible.
The definition of breadcrumbs according to its documentation is as follow: Breadcrumbs displays a list of links indicating the position of the current page in the whole site hierarchy.
When to use Active Record is a common question among developers, Yii and overall.
Yii 2.0 comes with a formatter component to format dates, numbers, and other values for international users according to their locale. This is very useful for displaying data. When working with incoming data or when using enhanced input methods like the [MaskedInput widget](https://www.yiiframework.com/doc/api/2.0/yii-widgets-maskedinp...
Sometimes the App needs a nicer look & feel, so its necessary to organize the assets for this and Yii can help a lot to make it easy. In this article I provide tips for handling multiple "Designs". I use these three features:
This article is for those who have dealt with the complexity of Elasticsearch or any other indexing machines and are looking for an easier way to index the existing database without additional effort.
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.
There are a few settings and plugins that can enhance the development experience with Yii in PHPStorm or IntelliJ IDEA. This article explains how to get the most out of your IDE.
The Problem: Yii2 utilizes by default UserIdentity configured in config/web.php for connection, this object apply one table to authentication ('identityClass' => 'app\panel\models\User'). How to authentication from diferent tables? Solution: Create instances in web.php to uses UserIdentify. eg:
Small companies and startups use cheap email services or even Cpanel's mail services which are less secure and compete directly with bigger email providers like Microsoft with Outlook and Google with Gmail. This creates a problem when you try to use their services to send/receive emails from this cheap services. <img width="750" src="https://static.techspot.com/fileshost/newspics3/2017/google-clo...
We all need SEO friendly URLs for our projects. its not always good to call route with params so we can generalise it for all models using a common function.
There are some very advanced grids in the Yii2 community, specifically Kartik's amazing gridview extensions but they all designed for interactive screen use.
Upon creating my Yii2 Members System, I have ran into a few snags along the way that forced me to extend and bend Yii2 to my will.
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...
