Easy integration of jQuery

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dev-master 2014-01-07 04:33 UTC

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Last update: 2022-05-14 16:44:10 UTC


= Jquery Plug-In =

The `sfJqueryReloadedPlugin` offers helpers that integrate the [ Jquery] Javascript framework.

== Support ==
Please contact the [ sfJqueryReloadedPlugin Google group]. That is the best place to report bugs. Some of the maintainers may also be found in the 
`#symfony` channel @ Freenode IRC.

== Licence ==
This plugin is licensed under the MIT license. For the full copyright and license information, please view the LICENSE file that was distributed with this source code.

== Introduction ==

Symfony 1.0 offered a set of PHP helper functions which invoked popular AJAX functionality, such as forms that update particular page elements rather than the entire page, autocomplete/typeahead, and the like. However, these helpers were built on Prototype, while jQuery has since become a clearly superior JavaScript library. Also, in Symfony 1.2 these helpers were deprecated and in Symfony 1.4 they are gone. sfJqueryReloadedPlugin is a reimplementation of these helper functions that uses the jQuery library instead of Prototype.

Just make sure you import the helper group `jQuery` with a `use_helper` call:


And give each helper call a `jq_` prefix.

So the classic prototype helper call:

<?php echo link_to_remote(....);?>


<?php echo jq_link_to_remote(....);?>

== Installation ==

  * Install the plugin
$ symfony $ symfony plugin:install sfJqueryReloadedPlugin   

Note that you can also check it out as an svn external from:


  * Optional: change jquery_web_dir in setting.yml if you are
  not using the traditional symbolic link to the webdir of the plugin
  (or copying the plugin's /web folder to a folder called sfJqueryPlugin
  in your web dir, which will also work automatically with our defaults).
        jquery_web_dir:      /sfJqueryPlugin
  * Optional: within that folder's /js/ subfolder you might have a different
  version of jquery other than a minimized 1.3.1 which is what
  you currently get if you allow the plugin to supply it. This can be a relative path
  if the file is located in a different folder.
        jquery_core:      jquery-1.3.1.min.js
  * Optional: specify different versions of the ui and autocomplete plugins, which would be looked for in the /js/plugins/ subfolder of your jquery_web_dir. Again, you can use relative paths relative to that location in web space if they are in a different place.
        jquery_sortable: jquery-ui-1.7.2.custom.min.js
        jquery_autocomplete: jquery.autocomplete.min.js

If you are running your websites under Microsoft Windows, you also have to manually copy the {{{./web}}} 
directory of the plugin in the {{{%SF_ROOT_DIR%/web}}} directory of your project
and rename it to {{{sfJqueryReloadedPlugin}}}. (The ./symfony plugin:publish-assets task should be able to do this for you.)

== Basic syntax ==

=== Declaring the helper in templates ===

 * Inside a template
<?php use_helper('jQuery') ?>

 * In `settings.yml`, for all modules
standard_helpers:       [..., jQuery]

When you use functions that require jQuery plugins, specifically
`jq_sortable_element` and `jq_input_auto_complete_tag`, the appropriate
JavaScript files are automatically added. However, if you are attempting
to do this from your `layout.php` (including via a component or
partial referenced by `layout.php` rather than an action template),
it will not work because `get_javascripts()` has already been invoked.
To resolve this issue, call:

<?php jq_add_plugins_by_name(array('sortable', 'autocomplete')) ?>

At the top of your `layout.php` file, or just add the js files for the
plugins you need directly to your project's `view.yml` file. The first
solution is more maintainable because it means you don't have to pay
close attention when we update to a newer release of a plugin.

=== Using Jquery methods ===

To use Jquery methods, refer to ''Chapter 11'' of the classic Symfony 1.0 documentation [ Ajax Integration]. All helper functions described in that chapter can be used with the '''jq_''' prefix. 

Note that jQuery and Prototype select elements differently. In cases where selecting just one element is the only thing that makes sense, the helper functions automatically prepend a '''#''' so that the selector behaves as it would in Prototype.

== jQuery Helpers documentation ==

 * `jq_periodically_call_remote($options = array())`
 * `jq_link_to_function($name, $function, $html_options = array())`
 * `jq_link_to_remote($name, $options = array(), $html_options = array())`
 * `jq_update_element_function($element_id, $options = array())`
 * `jq_form_remote_tag($options = array(), $options_html = array())`
 * `jq_submit_to_remote($name, $value, $options = array(), $options_html = array())`
 * `jq_javascript_tag($content)`
 * `jq_visual_effect($effect, $element_id = false, $js_options = array())` 
 * `jq_add_plugins_by_name($options = array())`  
 * `jq_sortable_element($selector, $options)` (
 * `jq_input_auto_complete_tag($name, $value, $url, $tag_options = array(), $completion_options = array()) ( 
 * function jq_draggable_element($selector, $options = array())
 * function jq_drop_receiving_element($selector, $options = array())

These are the methods currently supported by sfJqueryReloadedPlugin. Also see the source for newer and more experimental implementations. Future changes may integrate more functions.

== Using JSON ==

It is possible to use JSON responses with sfJqueryReloadedPlugin. Be sure to read
[ JSON Without Header] and consider:
<?php echo jq_link_to_remote(image_tag('icons/delete.png'),
                             array('url'      => '@delete')),
                                   'dataType' => 'json',
                                   'success'  => 'leaveGroup(request)')) ?>

== TODO ==

 * Add unit tests
 * Use `sprintf` for string manipulation
 * Implement the rest of the Javascript Helper:

    * draggable_element
    * drop_receiving_element
    * input_in_place_editor_tag

== Changelog ==

See the [ official changelog on the Symfony plugins site].