jTags module

This is a module for Jelix, allowing to manage tags on records/objects.

This module is for Jelix 1.7.2 and higher.

It was originally developed into the Booster project and the Havefnubb project.

Setting up the module

The best method is to use Composer.

In a commande line inside your project, execute:

composer require "jelix/jtags-module"

Launch the configurator for your application to enable the module

php dev.php module:configure jtags

After configuring the module, you should launch the installer of your application to activate the module:

php install/installer.php

How to use it

All tags are stored into a table. An other table contains the association between a tag, a scope and an id.

A scope is the type of records (a table name for example), or a domain. An id is the id of a record inside the scope.

When you store some tags for an object, you give a scope and the id of the object.

For example, for news posts, the scope may be news, and the id, the id of a news.

Editing tags within a form

Add in your jforms:

<input ref="tags" rows="2" cols="60">
    <label>Type your tags</label>
</input>

When initializing the form, retrieve the list of tags and set it to the input:

$form = jForms::create('news', $id_news);

// ...

$srvTags = jClasses::getService("jtags~tags");
$tags = implode(',', $srvTags->getTagsBySubject('news', $id_news));
$form->setData('tags', $tags);

If you want autocompletion, add the class on the widget, into your template:

{ctrl_control 'tags', ["class"=>"jtags-autocomplete"]}

And call setResponseHeaders() into your controller:

$resp = $this->getResponse('html');
//...
jClasses::getService("jtags~tags")->setResponsesHeaders($resp);

Saving tags after submitting a form

In the action of submit, retrieve the list of tags, and call saveTagsBySubject()

$id_news = $this->param('id_news');
$form = jForms::fill('news', $id_news);

// ...

$srvTags = jClasses::getService("jtags~tags");
$tags = explode(',', $form->getData('tags'));

$srvTags->saveTagsBySubject($tags, 'news', $id_news));

Displaying the list of tags

to display the list of tags of a record, call getTagsBySubject

$srvTags = jClasses::getService("jtags~tags");
$tags = implode(', ', $srvTags->getTagsBySubject('news', $id_news));

$tpl->assign('tags', $tags);

Displaying tags cloud

There is a zone to display a tags cloud.

Into your controller:

$tpl->assignZone("tagscloud", "jtags~tagscloud", array('destination'=>'module~ctrl:method', 'maxcount'=>30));

or in a template

{zone "jtags~tagscloud", array('destination'=>'module~ctrl:method', 'maxcount'=>20)}

• destination : the action which will display objects corresponding to a tag. it receive a "tag" parameter.
• maxcount : displays only the given number of tags. Set it to 0 or don't set this parameter to displays all tags.

Getting all objects marked with tags

$tag = $this->param("tag", false);
if ($tag) {
    $srv_tags = jClasses::getService("jtags~tags");
    $listOfNewsId = $srv_tags->getSubjectsByTags($tag, "news"));
}