Фремворк Limb

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====== CRUD - basic example of Limb3 based Create-Read-Update-Delete application ======

===== The main goals of this tutorial =====

* Show the basics of Limb3 framework
  * Demonstrate how to create an application with Limb3 from the scratch using WEB_APP package
  * Make a short glance at WACT template engine: main tags, expressions etc.

You can find the source code of the example at [[http://projects.limb-project.com|Limb3 projects section]] (see CRUD).

===== System requirements =====

* OS: *nix, Windows 98/ME/2000/XP
  * Web-server: Apache 1.3+ (with mod_rewrite)
  * PHP: PHP 5.1.4+
  * DB Server: MySQL 4.1+ or [[http://sqlite.org/|SQLite]]

You can place your project files somewhere in your Apache DocumentRoot or you can also setup your web server with a Virtual Host:

<code>
<VirtualHost *>
  DocumentRoot /var/dev/crud/www/
  ServerName crud
  ErrorLog logs/crud-error_log
  CustomLog logs/crud-access_log common
</VirtualHost>
</code>

Also make sure what Apache reads .htaccess files from your application directory. There should be something like this in Apache httpd.conf file:

<code>
 <Directory "/var/dev/">  
     Options Indexes FollowSymLinks  
     AllowOverride All  
 </Directory>  
</code>

===== Limb3 packages =====

Limb3, as framework, distributed via several packages, like, CORE, ACTIVE_RECORD, WEB_APP, DBAL etc. You can read a short tutorial about [[limb3_2007_4:en:packages_architecture|Limb3 packages]].

For our example application we need WEB_APP package and all other packages WEB_APP depends on.

The simplest way is to get WEB_APP via [[http://pear.limb-project.com|Limb3 PEAR channel]]:

<code>
  #PEAR-1.5 is in alpha
  $ pear install PEAR-alpha 
  # discovering Limb3 PEAR channel
  $ pear channel-discover pear.limb-project.com
  #web_app is in alpha too
  $ pear install limb/web_app-alpha 
</code>

There are [[limb3_2007_4:en:how_to_download|many different ways to get Limb3 source code]]. For example you can download the release archive of Limb3 from SourceForge.net or checkout the code from SVN - just use method you feel comfortable with.

===== Steps =====

- [[.basic:step1|Step1. Creating a skeleton of your application and make it run]]
  - [[.basic:step2|Step2. Displaying newsline using WACT-template]]
  - [[.basic:step3|Step3. Adding forms to allow creating and editing news. Data validation. News removal]]
  - [[.basic:step4|Step4. Templates optimization. Adding news pagination]]
  - [[.basic:step5|Step5. Adding more functionality: single news in detail, 5 latest news on the main page, sorting etc.]]
  - [[.basic:step6|Step6. Creating newsline RSS-feed]]
  - [[.basic:step7|Step7. Further readings]]

Пожалуйста, введите код подтверждения, чтобы доказать, что вы не робот:

  _____   ____   __    __  ___  _      __
 / ___/  /  _/  / /   /  |/  / | | /| / /
/ /__   _/ /   / /__ / /|_/ /  | |/ |/ / 
\___/  /___/  /____//_/  /_/   |__/|__/

Пожалуйста, оставьте это поле пустым:

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