View source for Rich Text Custom Fields

For those that haven't had the privilege to work with Request Tracker, it's a ticket registration system which can be used in various situations. One of the more popular usages would be incident management but it can also be used for bug tracking, project managent, CRM like functionality, etc.. If you haven't already, go check it out: http://bestpractical.com/rt/

By default Request Tracker comes with certain custom field types, one of which is the Wiki Text Custom Field. This would allow you to use wiki markup, similar to MediaWiki, which will format your text. Formatted text is something our users specifically want for the Articles feature (knowledgebase) so you'd say they would be happy with this feature. However, the problem with this Custom Field is that you need to learn the wiki syntax by heart which isn't something every end-user want's to do (let's face it, users are spoiled ^_~).

To fix this I've applied the following patch/changes to my RT installation, which has been succesfully tested with versions 4.2.3, 4.2.4 and indirectly also on 4.2.5. For the 4.2.4 release you'd have to manually commit these two patches though, this will fix an issue I've come across for this spicific patch:
*https://github.com/bestpractical/rt/commit/82d763ab
*https://github.com/bestpractical/rt/commit/af0d313d
Now the actual change itself, this is how it's now installed on my 4.2.3 version (thus, without the above commits).
==Convert Wiki Text CF into a Rich Text CF==
This modification is inspirerd by the following wiki:
*http://requesttracker.wikia.com/wiki/AddRichTextEditorToCustomField
First we need to copy the core Wiki Text CF file to a local directory for editing:
 cp /opt/rt4/share/html/Elements/EditCustomFieldWikitext /opt/rt4/local/html/Elements/EditCustomFieldWikitext
Then we need to edit this file:
 nano -w /opt/rt4/local/html/Elements/EditCustomFieldWikitext
Add the following code:
 %# --- Wiki Text Area ==> Rich Text Area ---
 
 <script type="text/javascript">CKEDITOR.replace( '<%$name%>',{ width: '100%', height: RT.Config.MessageBoxRichTextHeight });</script>
 
 %# --- Add just bove <%INIT> ---
This basically already converts the Wiki Text area into a Rich Text area. However, technically, if you enter wiki markup into the field it would now still format that markup. Something I find unnecesery since you now have a WYSYWIG editor at your finger tips.

So we now make sure that the Wiki Text custom field is used as if it's a normal text custom field, the following does this by creating a symbolic link in the local directory:
 ln -s /opt/rt4/share/html/Elements/ShowCustomFieldText /opt/rt4/local/html/Elements/ShowCustomFieldWikitext
You can now restart RT, make sure to empty the mason_data/obj directory:
 service apache2 stop && rm -rf /opt/rt4/var/mason_data/obj/* && service apache2 start
And voula, you now have a rich text custom field which you can use wherever you feel the need.
==Adjust the theme to fix line breaks==
Even though all of this works, I've noticed that RT shows allot of empty space for line breaks. To fix this you can edit your current theme with the theme editor, add the following lines:
 /* CF Value styling */
 .value br { display: block; margin: 5px 0 0 0; line-height: 5px; content: " ";}
==Customize the appearance of your Rich Text editor==
RT uses CKEditor, by default it comes with a certain configuration which might not be what you prefer in your installment.

Creating the following file with allows you to change this default/behaviour:
 nano -w /opt/rt4/local/static/RichText/config.js
This is the configuration that I'm currently using:
 /**
  * @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.html or http://ckeditor.com/license
  */
 
 CKEDITOR.editorConfig = function( config ) {
 	// Define changes to default configuration here. For example:
 	// config.language = 'fr';
 	// config.uiColor = '#AADC6E';
   config.toolbar = 'Full';
 
 config.toolbar_Full =
 [
     ['Cut','Copy','Paste','PasteText','PasteFromWord'],
     ['Undo','Redo','-','SelectAll','RemoveFormat'],
     ['Table','HorizontalRule','SpecialChar'],
     ['Link','Image','Table'],
     ['Source'],
     ['Print'],
     '/',
     ['Format','Font','FontSize'],
     ['TextColor'],
     ['Bold','Italic','Underline','Strike'],
     ['JustifyLeft','JustifyCenter','JustifyRight','JustifyBlock'],
     ['NumberedList','BulletedList','-','Outdent','Indent']
 ];
 
 config.enterMode = CKEDITOR.ENTER_BR;
 config.shiftEnterMode = CKEDITOR.ENTER_P;
 config.enableTabKeyTools = true;
 config.htmlEncodeOutput = false;
 
 config.disableNativeSpellChecker = false;
 config.browserContextMenuOnCtrl = true;
 
 
 config.toolbarCanCollapse = false;
 config.toolbarStartupExpanded = true;
 config.font_names =
     'Arial/Arial, Helvetica, sans-serif;' +
     'Courier New/Courier New, Courier, monospace;' +
     'Georgia/Georgia, serif;' +
     'Lucida Sans Unicode/Lucida Sans Unicode, Lucida Grande, sans-serif;' +
     'Tahoma/Tahoma, Geneva, sans-serif;' +
     'Times New Roman/Times New Roman, Times, serif;' +
     'Trebuchet MS/Trebuchet MS, Helvetica, sans-serif;' +
     'Verdana/Verdana, Geneva, sans-serif';
 config.contentsCss = CKEDITOR.basePath + 'contents.css'; // won't need this after ckeditor 4.3.2
 };
This changes the Rich Text editor into the following style (this is how I use it at the moment):

[http://pleh.info/_detail/blog/2014-06-12/richtext_customized.png?id=blog%3A2014-06-12%3Art_-_rich_text_custom_fields]
==Pro's and con's==
Even though this works, it does have some conditions that come with it.
#This isn't “core” functionality of Request Tracker so it might get broken during updates. (proper testing is a must)
#These custom fields are always quite “big” because of the top bar and the default styling of using 100% width. This is fine for Articles but could be annoying when using this Custom Field somewhere else.
#There are also a few things that aren't working as well when using this in Articles:
##The feature to create tables doesn't work. This is a result of the custom fields themselves being in a table and having a table within a table doesn't really work…
##It loses formatting when inporting the content of a Article page into a ticket. e.g. default e-mails, instructions, etc. (a shame, would be nice if it kept it's formatting). But, even without formatting the content is displayed properly (not that different from plain text).
But, on the flip side, the wiki text custom field can be used in Articles for a fully formatted knowledgebase which helps the support desk and makes documenting things allot easier for those that don't want to learn wiki markup.
==Source==
This page originates from:
*http://pleh.info/blog/2014-06-12/rt_-_rich_text_custom_fields
[[Category:Contribution]]