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 error like “yourmodel.id is not defined”.
With the adoption of PJax on Yii2 things have change quite a bit with GridView when it comes to work with them in AJAX mode. It will probably be confusing at the beginning, but then you will soon realize how powerful the new approach is.
This article shows a quick and easy way to implement flat user access control system. Flat means, that user access is controlled by level only, which is solution exactly opposite to complex RBAC access systems.
Its very common now-a-days to have Mobile app for web apps. For Mobile apps we need web APIs to fetch data or even post/update on web. We found a very simple method to make such interface.
Mobile App can call plain get or post request and receive data back in JSON format. JSON is relatively easy for mobile app to handle while plain standard GET/POST request for easy for Web server to handle. This mixed approach saves lot of time on server side. We not really need to handle actual REST requests and still be able to exchange data between web and mobiles or ajax java-scripts or even node.js.