Services Views not exposing thumbnail image url

Question

I am trying to create a view which will be exposed as a service via Services Views module. I have only defined Default display for this view and added the following field to the list of Fields -

• Node: Nid Nid
• Node: Type Type
• Node: Title Title
• Profile: Author Info: Full Name Author Name
• Node: Post date Post date
• Node: Teaser Teaser
• Node: Promoted to front page Promoted to front page
• Node: Last edited by Last edited by
• Node: Updated date Updated date
• Content: Thumbnail URL to file

All the fields are appearing nicely when I request it (using this url: http://localhost/app/rest/views/articlelist?args[0]=1), but the last field, which is the url to thumbnail file isn't appearing there.

A sample response from the above url is as follows -

<item>
<nid>22</nid>
<type>Article</type>
<title>UK soldier killed in Afghanistan</title>
<author_name>Demo Journalist</author_name>
<post_date>Jul 1 2012 - 4:08pm</post_date>
<teaser>
<p>&nbsp;ret rre tre tretre trtretre tre t re t&nbsp;ret rre tre tretre trtretre tre t re t&nbsp;ret rre tre tretre trtretre tre t re t&nbsp;ret rre tre tretre trtretre tre t re t&nbsp;ret rre tre tretre trtretre tre t re t&nbsp;ret rre tre tretre trtretre tre t re t</p>
</teaser>
<promoted_to_front_page>Yes</promoted_to_front_page>
<last_edited_by>admin</last_edited_by>
<updated_date>Jan 2 2013 - 3:56pm</updated_date>
</item>

What do I need to do to display the related thumbnail url?

Edit

Here is the query that is being executed (obtained from preview) -

SELECT node.nid AS nid, node.language AS node_language, node.type AS node_type, 
       node.title AS node_title, 
       profile_values_profile_full_name.value AS profile_values_profile_full_name_value, 
       profile_values_profile_full_name.uid AS profile_values_profile_full_name_uid, 
       node.created AS node_created, node.promote AS node_promote, 
       node.changed AS node_changed, 
       files_node_data_field_thumbnail_image_node_data_field_thumbnail_image.field_thumbnail_image_fid AS files_node_data_field_thumbnail_image_node_data_field_thumbnail_image_field_thumbnail_image_fid, 
       files_node_data_field_thumbnail_image_node_data_field_thumbnail_image.field_thumbnail_image_list AS files_node_data_field_thumbnail_image_node_data_field_thumbnail_image_field_thumbnail_image_list, 
       files_node_data_field_thumbnail_image_node_data_field_thumbnail_image.field_thumbnail_image_data AS files_node_data_field_thumbnail_image_node_data_field_thumbnail_image_field_thumbnail_image_data, 
       node_data_field_analysis_box.field_analysis_box_value AS node_data_field_analysis_box_field_analysis_box_value, 
       node.vid AS node_vid 
FROM node node  LEFT JOIN content_type_article node_data_field_thumbnail_image 
ON node.vid = node_data_field_thumbnail_image.vid 
LEFT JOIN files files_node_data_field_thumbnail_image 
ON node_data_field_thumbnail_image.field_thumbnail_image_fid = files_node_data_field_thumbnail_image.fid 
INNER JOIN term_node term_node 
ON node.vid = term_node.vid 
INNER JOIN users users 
ON node.uid = users.uid 
LEFT JOIN profile_values profile_values_profile_full_name 
ON users.uid = profile_values_profile_full_name.uid AND 
    profile_values_profile_full_name.fid = '1' 
LEFT JOIN content_type_article files_node_data_field_thumbnail_image_node_data_field_thumbnail_image 
ON files_node_data_field_thumbnail_image.fid = files_node_data_field_thumbnail_image_node_data_field_thumbnail_image.field_thumbnail_image_fid 
LEFT JOIN content_type_article node_data_field_analysis_box 
ON node.vid = node_data_field_analysis_box.vid 
WHERE (node.status <> 0) AND (term_node.tid IN (1, 2)) 
ORDER BY node_changed DESC, node_created DESC

Answer 1

It's a bit unclear what you have in your view, but here are some suggestions:

• Make sure you have Formatter set to "Image URL", and the "Image Style" set to the specific style (ie thumbnail)
• Ensure that you actually have some data for your filter. "No Results Behavior" may have "Hide if empty", which would omit this field in your response if it's not set.
• Enable showing the query and results for the view to at least check that the return data contains the value that you expect (admin/structure/views/settings -> [] show performance statistics)
• Check that your contextual filter is not obfuscating something - remove the args[0]=1
• Ensure that the normal Page response for the view displays a value for the thumbnail field, by going to the "path" that you've defined for the view.

Answer 2

On the View edit page, try:

• Edit the image url field settings
• Expand "Rewrite results"
• Check "Output this field as a link" then
• Check "Use absolute path" under link rewrite options.

Answer 3

I have unsolved case to display field image (uri) before, I can solve it by using viewsphp module to load field image value.

Have you seen the video demo on this page? http://drupal.org/project/services_views