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Yii3 - How to start

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Yii3 - How to start

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Tutorials

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3.0

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# Intro
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## Disclaimer
 
 
I am just learning Yii3. Its new architecture is not my cup of tea so I am trying my best to reach my goals. (I left world of Java+Spring because of these complex DI configurations and now it's back :-o )
 
 
If you find a better implementation, let me know. I am not an architect, but a real-life developer who solves daily problems in the world of bussines and industry so sometimes I may produce too straightforward or philosophically imperfect solutions.
 
 
## Adding DB into your project

Your project now does not contain any DB. Let's add MariaDB and Adminer (DB browser) into file docker/dev/compose.yml:
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Method `xdebug_info()` will still show `xdebug.mode=develop`, but `Step Debugger` will be `enabled`.

> You can enhance it by appending `idekey`, but IDE setup then may require you to specify "IDE Key (session id)", the host (localhost:80) and set "path mapping" so that your local project-folder is mapped to "/app". All is done via IDE configuration.
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## UI
 
 
**Pjax**

Pjax does not exist any more, but you can use [HTMX](https://htmx.org/docs/#introduction) instead:
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**## GridView + CRUD
 
 
Grid view is in package `yiisoft/yii-dataview`. The source code is extremely verbose and complex to me (compared to how primitive function it should provide), so I am just linking my GitHub demo:
 
 
- [Action](https://github.com/rackycz/yii3web/blob/master/src/User/Action/IndexAction.php)
 
- [method findAll()](https://github.com/rackycz/yii3web/blob/master/src/Entity/QueryBuilder/UserQueryBuilderRepository.php)
 
- [QueryDataReader](https://github.com/rackycz/yii3web/blob/master/src/Entity/QueryBuilder/QueryDataReader.php)
 
- [View](https://github.com/rackycz/yii3web/blob/master/src/User/View/index.php)
 
 
 
## JS client - Installable Vuejs3 PWA** If you create a REST API you may be interested in a JS frontend that will communicate with it using Ajax. Below you can peek into my very simple VueJS3 attempt. It is an installable PWA application that works in offline mode (=1 data transfer per day, not on every mouse click) and is meant for situations when customer does not have wifi everywhere. See my [Gitlab](https://gitlab.com/radin.cerny/vuejs3-pwa-demo-plus).
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Version: 3.0
Category: Tutorials
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Written by: rackycz rackycz
Last updated by: rackycz rackycz
Created on: Oct 8, 2025
Last updated: 8 hours ago
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