Add new image field to Joomla 1.7 com_content

Question

I'm trying to make some changes to com_content component of Joomla 1.7 There are not many docs on specific topic for Joomla 1.7

Maybe you could help me out on this one.

I want to have a separate field for extra image in com_content, specifically to Featured view.

In the administrator's part I managed to add the field - just in html, then into xml file and finally to DB.

Now I'm trying to get that record displayed in my custom html view for Featured articles.

I just used simple code echo $this->item->addimage; but unfortunately it's not displayed.

Any ideas how to achieve that?

Thanks!

And one more thing, as far as I have noticed, component development structure, DB registration and so on, has been changed in Joomla 1.7. Any helpful link(s) where everything is explained well?

Hi Mikey, modifying the core com_content isn't really the best way to go around this. Have you considered a plugin which would allow you to attach an image to an article - I have created 2 extensions which provide very similar functions for 1.5 and the code is mostly transferable to 1.7. Would you be willing to try this as a solution? It would then not be a "core-hack" meaning upgrades to your CMS in the future would not break your modifications. — udjamaflip
@udjamaflip thanks for reply, but I guess making a core change is a right option for me right now — mrGott
It would appear the same as the way you're currently doing it, if this is what you're worried about — udjamaflip
I don't believe a core modification is ever the answer. As udjamaflip said, there is a plugin that would do the same thing - I'd strongly recommend going that route. It will save you hours of headache later when you have to upgrade (and you will/should for security purposes!) — Hanny
@Hanny - What is the plugin name? Just to take a look, maybe I'll like that solution :) — mrGott

WooDzu WooDzu · Accepted Answer · 2011-10-17T18:18:43

Well. If you are sure that your implementation of what you have done works. ie. Embedded image or simply URL link from field you have added are stored in the database have a look into frontpage file /components/com_content/views/featured/tmpl/default_item.php

There you should place your $this->item->addimage variable like:

<img src="<?php echo $this->item->addimage; ?>" />

If you store URL link, or

<img src="image/png;base64,<?php echo $this->item->addimage; ?>" />

if your store the image as RAW base64 encoded data

Edit: This should solve your problem if you add your articles from frontend (if backend, just let me know)

Firstly create a new column in jos_content table like:

'addimage' varchar(255) DEFAULT NULL

Then modify the following files:

../com_content/views/featured/tmpl/default_image.php [LINE: 29]

29:#</h2>

30:#<?php endif; ?>

32: <?php if(!empty($this->item->addimage)): ?>

33: <img src="<?php echo $this->item->addimage; ?>" alt="ADDIMAGE" />

34: <?php endif; ?>

36: #<?php if ($params->get('show_print_icon') || $params->get('show_email_icon') || $canEdit) : ?>
../com_content/models/articles.php [LINE: 160]

160: # $this->getState(

161: # 'list.select',

162: 'a.id, a.title, a.alias, a.title_alias, a.introtext, a.addimage, ' .

163: #'a.checked_out, a.checked_out_time, ' .
../com_content/models/forms/article.xml [ADD SOMEWHERE]

<field id="addimage" name="addimage" type="text" label="Add Image" class="inputbox" />
../com_content/views/form/tmpl/edit.php [LINE: 82]

82: #<?php echo $this->form->getInput('created_by_alias'); ?>

83: #</div>

85: <div class="formelm">

86: <?php echo $this->form->getLabel('addimage'); ?>

87: <?php echo $this->form->getInput('addimage'); ?>

88: </div>

90: #<?php if ($this->item->params->get('access-change')): ?>

Add new image field to Joomla 1.7 com_content

2 Answers