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
Does your application need to know user's details on browser details, os and device type? We can use PHP's misc. function to achieve that provided you have an update copy of browsercap.ini
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...
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...
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.
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...
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.
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.
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.
this is my way for embed js code block in view file:
I'm using PayPal's script from
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.
It can happen that you work in development environment and you make changes to database tables structures, adding tables, or changing fields.
namespace app\components;
Bootstrap tabs gets unselected/inactive when user navigates to other page and comes back. How to make bootstrap tabs remain active/selected after navigating to different web pages.
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:
Here's a possible implementation for MongoDb of the RBAC standard. Create a class "MongoDbManager" in `common\components and modify your params.php` file like this:
Ok, you have installed a Yii 2 basic or advanced app for the first time and completed the post install steps. You have picked up a few extensions to install for the first time as well. You would already see a composer.lock file in your application root folder.