First declare an attribute to store the file name in the model class (either a form model or an active record model).
Also declare a file validation rule for this attribute to ensure a file is uploaded with specific extension name.
This wiki is to show you how to use jQuery get and JSON to get data from a dropdown/any form field and fill form fields with the values instantaneously. First, I'll give example use cases of what I'm going to teach you so you can quickly see if this is for you.
I am writing this guide because I struggled to find a resource that included ALL of the necessary steps to completely separate the frontend from the backend. After reading guides like Configuring different sessions for backend and frontend in yii-advanced-app and yii2 configuring different sessions for backend and frontend in yii advanced application template, there are still steps missing. It is funny how the 2nd one says it is an extension of the first one's article. So I guess, my wiki guide here is yet a 3rd and more complete extension of both of them. I also found a few StackOverflow questions and blog posts regarding this topic. None of them fully worked, and must be missing some magic sauce!
Una delle soluzioni che preferisco per studiare un framework PHP è avere a disposizione un webserver portabile, ovvero che non richiede una vera e propria installazione.
Questo mi permette spesso di lavorare direttamente su una chiavetta USB, potendo passare da un computer ad un altro di casa, o al lavoro, o dai clienti per le demo, senza alcun problema, avendo sempre con me l'ambiente server completo: server web, server MySQL, interprete php.
There are a few issues with the other solutions I originally used that I found from other wikis. I address the issues I had in this much simpler and shorter way. I am also going to explain what is going into way more detail than others to help people understand what's going on.