Wiki articles in category Tips

Use this extension : yii2-relation-trait

Generally we need to show one or more fields from a model that is related to another model used in CGridView. For our case we will use two related models, which explain how to use model "A" fields in a CGridView that used model "B".

As for complexity SQL query we have two solutions as below, I will discuss #2 in this article.

Lately, i needed to deal with the following scenario: read from two databases (db1,db2), and write to a third database (db3).

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)

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

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 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...

We are running one frontend running NGINX and several app servers running Apache2. There are several issues we have come across but right now I'll be documenting one of them. I'll be completing this article when I get more time.

Facebook iframe app’s session is losing in Internet Explorer when doing a second redirection inside the facebook iframe app.The main reason is ,by default IE wont allow cookies in its priavacy settings If cookies not available means session is also not available for our Facebook iframe app in IE.

hi, Here i am giving you some simple step to import huge data from a csv file to your mysql table.this is useful when you have a very huge data to import from csv format.

hello,

 This article is helpful only if you have the following situation:
 A web app which uses facebook login to login its users and if a user is logged out from his/her facebook account through another browser tab, then your app dont know that he is logged out  out or not from his facebook account and he/she will remain as logged in your web application.Its ok if you have no problem wi...

Yii's CArrayDataProvider is very helpful to display model relation data's directly on it.But it is truely a confusing one because by default it will assume a table field named “id” as primary key for its pagination purpose and what if you dont have field named “id” as primary key on your table? so its truely confusing and if you tried to display without an “id” field on ur table you will get an...

Step 1: Initialize the Bootstrap Tooltip & Popover plugins in your view layout file @web\views\layouts\main.php. Add this to somewhere in the beginning head section (after you have loaded the Jquery using your AppAsset or something similar).

There are some very advanced grids in the Yii2 community, specifically Kartik's amazing gridview extensions but they all designed for interactive screen use.

• Complete code: Ctrl+Space.
• Show method arguments: Ctrl+Q.

The official Yii project site now supports OpenSearch. This means you can customize your browser's search box to enable direct search of the content in yiiframework.com. For example, by entering a Yii class name in the browser's search box, the corresponding class API page will be shown in the browser.

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 usual way to find out what Yii has created for an SQL query is to mutilate the SQL in the sourcecode and call the program again so that the SQL statement with errors is displayed. Or you can use the SQL logger, which must be switched on and off each time and logs all SQL statements, which leads to an enormous slowdown in program execution and decelerates your workflow.

Virtually all Yii applications are built on top of a database, and though Yii is very flexible in how it addresses your DB, some design choices make things more convenient than others.