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

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.

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.

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.

One of the common tasks the web application might be required to perform, especially the app using some kind of a CMS, is to save the history of data changes. Your client for sure will want the answer to this simple question - If I mess this up or delete by accident can we bring it back? Well, DB backup is one thing and quick recovery is another - let's talk about latter one.

There are cases that model validators should be depended by controller/action and you couldn't manipulate on the model class or using scenarios in easy way

In yii2 we can create form without create FormModel. Here we go

Efficient coding with Yii implies efficient use of the code generator. This article shares the personalised Gii templates that were built starting from the standard templates proposed by AweGen.

Suppose you have Products,Categories and each product belongs in many categories

The yii2-field-range extension enables you to easily setup ActiveField range fields with Bootstrap styling. You basically can setup two attributes joined together like a single field with combined validation error block.

In this wiki I will show you how to save/update a model with many related model For example: How to set a product to multiple categories only in one post form ?

CGridview displays existent rows of the table (using DataProvider)

Suppose we want to set a category to product (or an item in general term), Also suppose categories has sub-categories (multi-level)

Note the tag {{homeUrl}} will be dynamically replaced at runtime.

There are cases you want to update a record on CGridview directly

Suppose you have an Application in Yii that manages hotels each one has many customers.

There are cases that you want to validate the file format, size, extension etc but how to do that without submit the form ?

So you want to use CForm (form builder), but need to preload dropdowns in a form? It's simpler than it seems.
You got your CFormModel, CForm and the actual Form, right?
Let's say you have the typical State -> City dependent dropdowns, so you would want to load the from with the State and City selected.

Ok, it is a little bit difficult to full understanding the unsafe validator.

Everyone have seen a multilayer menu in several CMS