"Publish to" field not populated upon nodes mass creation using image_import

Thanks for your reply.
I indeed see that in the image_create_node_from function, from image_import module, the created node does not build any domain related variable.
From what I understand from your #1 reply, I should modify this function to add a section to construct $node->domain information. I read, as suggested, http://drupal.org/node/1096988 and even http://drupal.org/node/1096982, but it didn't help me that much. I will keep studying it.

But let me please come back on your #2 reply first : from what I understand (I'm not sure I got your point), even if I don't construct $node>domain information in the image_create_node_from function, the node should anyway acquire the default domain ?

Running the code step by step showed me that, in image_create_node_from function :
- before node_save($node); call, nothing is related to domain in $node
- after a call to node_save($node);, 2 new variables have been added (domain_source = 0 and domain_site = 0) and 1 array (domains, with one value [0] = 0)
(I have 4 affiliates, 0 being the default one I assume)
And then, the node is still saved without any "Publish to" selected affiliate.
Is something's missing ? If yes, why ?
If no, then my confusion is even greater !

ok, got it.
First : I succeeded in making the whole thing work by adding the following code to the function :

global $_domain
// Domain Access features
  if (isset($_domain['domain_id'])) {
    $node->domain_site = FALSE; // Sets "Send to all affiliates" off
    $node->domain_source = $_domain['domain_id']; // Sets the "Source domain"
    if ($_domain['domain_id'] == 0){  // If the active domain is the default domain, have to replace 0 by -1 since checkboxes cannot accept 0
          $node->domains = array(-1 => -1); // Sets the domains node is published to.
    }
    else {
          $node->domains = array($_domain['domain_id'] => $_domain['domain_id']); // Sets the domains node is published to.
    }
  }

Secondly, I guess I figured out why the "default" behaviour is not working : as mentionned, domains array was populated with one value : [0] => 0, after the call of node_save function.
But as you mentionned it here http://drupal.org/node/1343980, 0 is not accepted with checkboxes, and has to be replaced by -1.
But the default behaviour seems to populate the domains array with 0 instead of -1.
Am I correct that it is the cause of the issue ? What do we have to change to make it work properly ? (without switching to D7 of course ! ;-) )

According to you, it should work properly by default ?
What's wrong then on my setup ? (unless I'm missing your point ?)

yes, hack is working and I'm using it.
Anyway, I would be happy to understand why it's not working the way it should.
To answer your questions, I just tested the importation of 1 picture after having removed the hack :
One node has been created in node, type = image
1/ DA is installed and working
2/ node_access table has been populated with the following value :

• gid = 2
• realm = content_access_id
• grant_view = 1
• grant_update = 0
• grant_delete = 0

3/domain_access has not been populated with anything related to this node.

I'm wondering if maybe Content Access module may conflict with Domain Access ?
I have it installed on my drupal...

ok, sorry not to have mentionned it sooner. It did not come to my mind at all that there could be conflicts !
I don't get your point regarding my hack not working...since it is working ?

but anyway, I understand having both Domain Access and Content Access on my drupal is the cause of the unexpected behaviour and that custom bridges have to be developped if I want it to work differently.

Thanks for your time, and for your wonderfull module !