Display error messages and notices

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Errors, warnings and notices can be displayed from any component, module, plugin or template using the method outlined below (took me some time to figure this out, might help someone else):  
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{{RightTOC}}
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Errors, warnings and notices can be displayed from any component, module, plugin or template using the methods outlined below.
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<source lang="php">
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// Get a handle to the Joomla! application object
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$application = JFactory::getApplication();
  
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//Get a handle to the Joomla!-application object
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// Add a message to the message queue
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$app =& JFactory::getApplication();
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$application->enqueueMessage(JText::_('SOME_ERROR_OCCURRED'), 'error');
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//add a message to the message queue
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$app->enqueueMessage(JText::_('Random error occured'), 'error');
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The second argument to the enqueueMessage()-function is the type of message. Default is 'message', but both error, and I believe also 'warning' will work. The api for the JApplication-object can be found at:
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/** Alternatively you may use chaining */
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[[http://api.joomla.org/Joomla-Framework/Application/JApplication.html JApplication API]]
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JFactory::getApplication()->enqueueMessage(JText::_('SOME_ERROR_OCCURRED'), 'error');
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The error message will now be displayed if the message-tag is present in your template. The message-field is added with the following statement in your template:
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</source>
  
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The second argument to the [[JApplication/enqueueMessage|enqueueMessage]] function is the type of the message. The default is 'message', but 'error' results in a different style for the message.  The message will be displayed in place of a special <tt>jdoc:include</tt> statement in your template.  Place the following in your template at the location where you want messages to appear.
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<source lang="php">
 
<jdoc:include type="message" />
 
<jdoc:include type="message" />
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</source>
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== Message ==
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<div style="background-color: #c3d2e5; color: #0055bb; border-top: 3px solid #84a7db; border-bottom: 3px solid #84a7db; padding-left: 1em; font-weight: bold;">
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Message
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</div>
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<source lang="php">
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JFactory::getApplication()->enqueueMessage('Message');
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</source>
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== Notice ==
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<div style="background-color: #efe7b8; color: #c00; border-top: 3px solid #f0dc7e; border-bottom: 3px solid #f0dc7e; padding-left: 1em; font-weight: bold;">
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Notice
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</div>
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<source lang="php">
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JError::raiseNotice( 100, 'Notice' );
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</source>
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== Warning ==
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<div style="background-color: #e6c0c0; color: #c00; border-top: 3px solid #DE7A7B; border-bottom: 3px solid #DE7A7B; padding-left: 1em; font-weight: bold;">
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Warning
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</div>
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<source lang="php">
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JError::raiseWarning( 100, 'Warning' );
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</source>
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== Error ==
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<source lang="php">
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JError::raiseError( 4711, 'A severe error occurred' );
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</source>
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== Joomla! 3.x is bootstraped ==
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Since Joomla! {{JVer|3.0}} will use bootstraped templates, the messages will use the standard boostrap CSS styles for Alerts.
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See: http://twitter.github.com/bootstrap/components.html#alerts
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The general syntax remains:
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<source lang="php">
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JFactory::getApplication()->enqueueMessage('Your Message', 'type');
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</source>
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Where '''type''' can be one of
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* EMPTY - yellow
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* 'info' - blue
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* 'error' - red
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* 'success' - green
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== Success ==
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Note the new style in Joomla! 3 using the type '''success''' which is now used instead of the former "Message".
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<div style="background-color: #dff0d8; color: #468847; border-top: 3px solid #468847; border-bottom: 3px solid #468847; padding-left: 1em; font-weight: bold;">
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Success
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</div>
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<source lang="php">
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JFactory::getApplication()->enqueueMessage('Success');
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</source>
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== See also ==
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* [[JError]]
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* [[JApplication]]
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*  [http://api.joomla.org/1.5/Joomla-Framework/Application/JApplication.html JApplication on api.joomla.org]
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<noinclude>[[Category:Development]]</noinclude>
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[[Category:Tutorials]][[Category:Component Development]]

Revision as of 04:07, 17 January 2013

Contents

Errors, warnings and notices can be displayed from any component, module, plugin or template using the methods outlined below. 

// Get a handle to the Joomla! application object
$application = JFactory::getApplication();
 
// Add a message to the message queue
$application->enqueueMessage(JText::_('SOME_ERROR_OCCURRED'), 'error');
 
/** Alternatively you may use chaining */
JFactory::getApplication()->enqueueMessage(JText::_('SOME_ERROR_OCCURRED'), 'error');

The second argument to the enqueueMessage function is the type of the message. The default is 'message', but 'error' results in a different style for the message. The message will be displayed in place of a special jdoc:include statement in your template. Place the following in your template at the location where you want messages to appear. 

<jdoc:include type="message" />

Message

Message 

JFactory::getApplication()->enqueueMessage('Message');

Notice

Notice 

JError::raiseNotice( 100, 'Notice' );

Warning

Warning 

JError::raiseWarning( 100, 'Warning' );

Error 

JError::raiseError( 4711, 'A severe error occurred' );

Joomla! 3.x is bootstraped

Since Joomla! Joomla 3.0 will use bootstraped templates, the messages will use the standard boostrap CSS styles for Alerts.

See: http://twitter.github.com/bootstrap/components.html#alerts

The general syntax remains: 

JFactory::getApplication()->enqueueMessage('Your Message', 'type');

Where type can be one of

  • EMPTY - yellow
  • 'info' - blue
  • 'error' - red
  • 'success' - green

Success

Note the new style in Joomla! 3 using the type success which is now used instead of the former "Message".

Success 

JFactory::getApplication()->enqueueMessage('Success');

See also

Retrieved from "http://docs.joomla.org/index.php?title=Display_error_messages_and_notices&oldid=79945"
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