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[HOW TO] Add additional fields
Dody
Join Date: Jul 2004
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Dody Dody is offline 03-09-2010, 10:00 PM
This guide will show you how to add additional fields to your threads. This feature has been requested many many times and can be very powerfull.

Imagine that you want to add additional fields to your threads, such that every time a user create a new thread has the opportunity to fill these fields. This requires HTML and PHP experience, so be prepared!


Add additional fields

The very first step is to the the HTML code of the additional fields into newthread template. This can be done by adding HTML code directly into the HTML code right after the Title field:

HTML Code:
<input type="text" class="primary full textbox" name="subject" id="subject" value="{vb:raw subject}" maxlength="{vb:raw vboptions.titlemaxchars}" tabindex="1" />
    &nbsp;<img id="display_posticon" src="{vb:raw selectedicon.src}" alt="{vb:raw selectedicon.alt}" />
   </div>
For instance you can add:

HTML Code:
<input type="text" name="additionalField" />
Or you can add a variable ({vb:raw additionalfields}) and render newthread template to add these fields automatically from a plugin (if you don't know how, go for adding the HTML code or do some homework )


Catch additional fields values

Now that you have add some fields to newthread template, you need to catch them before adding them to the database. This can simply be done by hooking newthread_post_start and catching the field value:

PHP Code:
$value = $vbulletin->input->clean_gpc('p', "additionField", TYPE_STR); 
Where additionalField is HTML name attribute of the additional field we added above.


Add additional fields values to post/database

Now we have catched the field value ($value) and are ready to save it to the database or to the post.

Personally I prefer to add it to the post, because it will be searchable by default and can be done very easily (easier than adding it to an extra database table)

Once you cashed the field variable as described above, you can add it to the post by:

PHP Code:
$vbulletin->GPC['message'] = $vbulletin->GPC['message']."(padding goes here)".$value; 

Extra BBcodes

If you want to wrap $value with some extra HTML codes, then you need to create some custom BBcodes and wrap it around the value:

PHP Code:
$value = "[customBBcode]".$value."[/customBBcode]"; 
This requires that you add the BBcodes manually before everything else.


Case study
Let's say we want to add an additonal field that will carry the source URL of an article.

First we add:

HTML Code:
<input type="text" name="additionalFieldURL" />
to newthread template as described above

Then create a plugin (something similar to the following).

PHP Code:
<?xml version="1.0" encoding="ISO-8859-1"?>
<product productid="additionalFields" active="1">
 <title>Additional Fields</title>
 <description>Addition Fields</description>
 <version>0.0.1</version>
 <url />
 <versioncheckurl />
 <dependencies>
 </dependencies>
 <codes>
 </codes>
 <templates>
 </templates>
 <stylevardfns>
 </stylevardfns>
 <stylevars>
 </stylevars>
 <plugins>
  <plugin active="1" executionorder="5">
   <title>additional fields</title>
   <hookname>newthread_post_start</hookname>
   <phpcode><![CDATA[
         $value = $vbulletin->input->clean_gpc('p', "additionlFieldURL", TYPE_STR);
         $custom_message .= "[customBBcode][b]Source URL: [/b] [/customBBcode]: ".$value;
         $vbulletin->GPC['message'] .= "".$custom_message;
 ]]></phpcode>
  </plugin>
 </plugins>
 <phrases>
 </phrases>
 <options>
 </options>
 <helptopics>
 </helptopics>
 <cronentries>
 </cronentries>
 <faqentries>
 </faqentries>
</product>
Or download it from the attachment below. Add it through Admincp -> Plugins & Products -> Manage products, and [Add/Import Product]

And you are done!

Note: the plugin is just to show you how this works and by no mean is supported or ready for production.

Got a question, suggestion or improvment? don't hesitate to let me know
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  #2  
Old 03-12-2010, 04:35 PM
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MARCO1 MARCO1 is offline
 
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Nice Guide, Thanks.
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Old 03-13-2010, 03:33 AM
nader nader is offline
 
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what about CMS additional fields?
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Old 03-13-2010, 08:57 AM
Dody Dody is offline
 
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I don't think that CMS has enough hooks to do the above, but as Edwin Brown blogged, you can create your own content type which includes the number of fields that suites your need.
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Old 04-17-2010, 12:25 AM
weallgovern weallgovern is offline
 
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great can this be done for individual forum categories? For example not in lobby forum but in forum a b and z etc.
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Old 04-29-2010, 10:24 PM
Dody Dody is offline
 
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Quote:
Originally Posted by weallgovern View Post
great can this be done for individual forum categories? For example not in lobby forum but in forum a b and z etc.
Yes it is possible. In the newthread template you can use

PHP Code:
<vb:if condition="$foruminfo[forumid] == x">
HTML fields
</vb:if> 
Similary in the plugin code, you can add:

PHP Code:
    if($foruminfo[forumid] == 9){
    //catching the fields vars
     } 
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Old 05-04-2010, 02:18 AM
as7apcool as7apcool is offline
 
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thanks alot for your good work
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Old 06-07-2010, 03:49 PM
bnimbhal bnimbhal is offline
 
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very tough to understand.
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Old 06-08-2010, 06:32 PM
wolfe wolfe is offline
 
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the bbcode parsing is not working properly i use [CODE] tags and it all shows in one line.
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Old 06-22-2010, 12:16 PM
Dody Dody is offline
 
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Quote:
Originally Posted by wolfe View Post
the bbcode parsing is not working properly i use [CODE] tags and it all shows in one line.
I am not sure if that could be a bug in the code tag.
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