[solved] Add own dropdown list field to VM products in Backend

[gba]

Hello all!

In the backend there are several fields with multiselect dropdown, like i.e. categories, manufacturers, shopper groups.
Now I want to add an own field 'View groups' in this style, containing just strings, maybe separated by i.e. '|'.

In the file '/administrator/components/com_virtuemart/views/product/tmpl/product_edit_information.php' I added following code after the last TR for product information:

Code Select Expand

<?php $i = 1 - $i; ?>
<tr class="row<?php echo $i?>">
<td>View groups</td>
<td>
<select class="inputbox" id="viewgroups" name="viewgroups[]" multiple="multiple"  data-placeholder="<?php echo vmText::_('COM_VIRTUEMART_DRDOWN_SELECT_SOME_OPTIONS')  ?>" size="10">
<option value=""><?php echo vmText::_('COM_VIRTUEMART_UNCATEGORIZED') ?></option>
<option value="1">Option1</option>
<option value="2">Option2</option>
<option value="3">Option3</option>
<option value="4">Option4</option>
<option value="5">Option5</option>
<option value="6">Option6</option>
</select>
</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>

In the backend the field works as all the others of this type: Choose an option -> the option is added to the field and not available in the list anymore.

So, what I didn't find out, yet:
1. How can I store the chosen options with the product?
2. How can I display them i.e. on the product details page?
3. How can I add this field without changing the VM core?

Thank you very much in advance for any helpful hint!

Kind regards,
Gerald

[gba]

Hi all!

Solution: Use a VM custom field plugin. 

Best regars,
Gerald

[Milbo]

Not even a plugin, just customfield String, and "is a list"

[gba]

Hi!

Yes, that works for generating simple selectboxes in the frontend. 
What I needed, was a multiple selectbox in vm-chzn style in the product backend.

Best regards,
Gerald

[Milbo]

use the custom, not product customfield. I mean the prototype of them, the custom itself. Use "is_list" there and do NOT select "is input", then you get a list for the BE, to select fixed values to display them in the FE.