Wiki articles in category How-tos

https://schema.org is a markup system that allows to embed structured data on their web pages for use by search engines and other applications. Let's see how to add Schema.org to our pages on Yii2 based websites using JSON-LD.

This is a reference about model validators and user roles. In many cases we want model validators to applied only for some privileged users or not

To secure your database from inconsistencies resulting from failing (complex) operations, you (should) use transactions. However, complex methods often rely on other complex methods that themselves build on transactions. This HowTo presents a method to nest or embed transactions without relying on the database's nesting capabilities.

\yii\mail\BaseMailer::useFileTransport is a great tool. If you activate it, all emails sent trough this mailer will be saved (by default) on @runtime/mail instead of being sent, allowing the devs to inspect thre result.

When using themes you want to changes some of the translations specifically to the theme while keeping the standard translations for most of the text. Duplicating the main translation file is a headache for maintainance. This how to provides a solution.

Clearing CGridView filters and sort orders from the web pages, is usefull for the end user. Yii does not seem to propose a standard method. Furthermore, this is especially usefull when filters are "remembered" in the user's session.

There are Multiple Ways to Create a Validator But here we use Regular Expression or JavaScript Regular Expression or RegExp for Creation Validators. In this article, we will see the most Frequently Used Expression

The number of languages supported by the standard CJuiDatePicker implementation is limited and the language code to use is different from the application's language code. This Wiki shows how to improve on that.

if you have use the yiibooster extension, you have definitely used the amazing redactor, html5 and ckEditor editors.

I was recently assigned with the task of integrating several extensive forms into a WordPress website. These forms comprised numerous fields, intricate validation rules, dynamic fields (one to many relationships) and even interdependencies, where employing PHP inheritance could mitigate code duplication.

If you want to edit data directly in the gridview in a 'dropdownlist' style, then you could use the 'type' => 'select' option of TbEditableColumn (YiiBooster) or EditableColumn (x-editable for Yii). This wiki shows how to get data from the db for the 'dropdownlist', by converting AR model data into an array that is passed in json format.

During development and depending on your setup you may need to use the options forceCopy or linkAssets of the asset manager to work around possible file-system and permission issues.

Sometimes we need to create our custom exception and show it to the end user through a friendly way . In this article, I'm showing how to do it using CJuidialog.

Finding good looking, working and not abandoned gallery manager for Yii 1.x application is a tough task. Out of all I found, only yii-gallery-manager extension looked promising. But, after downloading it, it turned out, that there are certain unusual things to do, to include it in your application. So, I decided to write this article...

When one needs to select a record in a table that do not have related records through a relation, it is generally suggested to use a subquery. Personnaly, I prefer a high level approach, and I have a method to do it with scopes.

Use this code in your view,make sure to put EAmChartWidget in your extension folder. here is the url of widget http://www.yiiframework.com/extension/eamchartwidget/

Here i am writing code how to add option of theme change and layout change in your website.

This is a simple example that will give you a base for designing a database driven menu system that will use CMenu to be rendered.

The giix code generator has out of the box i18n support for model names and attribute labels (besides other cool features > check it out!) .
But I want to factor in not only the plural form, but also the grammatical cases (especially the accusative) while translating 'Manage Objects', 'Create Object', 'Edit Object' etc.

I was playing around with another PHP framework which I didn't really liked anyway but it had simple and nice integration for PHP built in web server so I decided to write one for Yii (since this is my primary PHP framework)