asset preview for off server assets

hemingweb · June 2016

I'm building a module to manage image data from a data feed we receive. The image files are held on a remote server and we are just maintaining a link to them. As there are several images per item, I'm storing the links as JSON, this also allows me to use a repeatable block in Form_fields, which is very tidy:


$fields['gallery'] = array(
            'display_label' => FALSE,
            'add_extra'     => FALSE,
            'repeatable'    => TRUE,
            'type'          => 'template',
            'label'         => 'Gallery',
            'limit'         => 12,
            'class'         => 'repeatable',
            'title_field'   => 'cap_id',
            'fields' => array(
                'viewpoint' => array(
                    'type' => 'int', 
                    'multiple' => TRUE
                    ),
                'src'       => array(
                    'type' => 'asset', 
                    'multiple' => TRUE,
                    'img_styles' => 'float: left; width: 100px;',
                    'after_html' => "<img src='{__src__}'>"
                    ),
            )
        );

The image preview doesn't appear, I assume this is because the image is on a remote site.

How could I drop a preview image into the repeatable block?

Regards

David

admin · June 2016

Is there a broken image appearing or no image at all. If it is broken, what is the src path being used?

hemingweb · June 2016

it's a broken image link.
I'm not sure how to reference the $gallery->src. At what point are the values dropped into the template?

Cheers

admin · June 2016

It would be in the $values array that is passed to the form_fields method if you are editing. If it is a new record then it won't exist. Since only form field values get saved in the JSON, you could try saving the __src__ value as just another hidden field value. You could use an on_before_save model hook to save the value in the JSON (would need to loop through the $_POST['gallery'] value). Then you could use javascript to perhaps grab all the hidden field values and use it to replace the after_html {__src__} value.

Howdy, Stranger!

Categories

asset preview for off server assets

Comments