Wiki articles in category Tutorials

namespace app\components;

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.

Personalmente trovo che la versione "portable" sia molto più semplice da aggiornare, ed io tengo sempre costantemente aggiornato TUTTO il parco software relativo al mio webserver.

• Running a composer update does not fetch any new packages (even though the source is updated)
• A specific vendor package never gets updated
• Facing on and off problems when fetching packages while performing composer update.
• You ran a composer update earlier, but it was partially done, before you lost network connectivity, and you cannot refresh packages anymore.

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

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...

This tutorial need extension mdmsoft/yii2-upload-file. Follow the intruction to install. After installation done, create controller and action

When building PHP web applications you usually have to take care about defining and providing a consistent development and production environment for your team. This includes your application packages, PHP-extensions, database servers and often further components such as a mail server or workers.

1. create file common\components\languageSwitcher.php

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.

$this->export2excel($excel_content,$excel_file);

in your controller.

common\components\LanguageSelector.php

<?php
namespace common\components;

When you are handling so many projects and those projects are saved in different repository locations, you may find it very difficult to keep track all the versions and revisions manually and it will be much harder if you are developing in multiple repository branches.

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...

Please note, that this article will be updated regularly as I have more and more snippets so come back in a few weeks

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

The yii2-detail-view extension offers you an easy way to EDIT and VIEW your model data, toggle these modes, and adds other features. You can read the extension documentation and/or view a demo of this extension, to understand usage.

If you have read this wiki you would be aware of the yii2-detail-view extension and how it offers you an easy way to EDIT and VIEW your model data, toggle these modes, and other features. You can [read the extension documentation](http://demos....

Hi Friends,

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.