Google Map widget does not work in Field Collection

I've attached a patch that resolves the issue for me, but not sure if it is the best way to go about it.

It's been awhile, but since the Field Collection module is a fieldable entity, the array looks something like this (from memory):

$node->$field_collection_name[$parent_delta][$field_name][$delta] = array('value' => '', ... etc);

And so by just using the $instance['id'] and $delta, it is always something like 'googlemap-0', creating duplicate HTML id's and then only the first instance loads, I think. By adding the $parent_delta in there it becomes 'googlemap-0-0', 'googlemap-1-0', etc and if the field is multivalued then it would be incremented as well. The dash in between is important to avoid conflicts with something like googlemap-11-0 vs googlemap-1-10

Hope that helps.

I suppose it could be wrapped in a module_exists(), but since we aren't relying on any field_collection functions I don't think it's necessary.

That's a good question. It may have been fine to just do something like (example diff):

-  $id = $instance['id'] . '-' . $delta;
+  $depth = count($element['#field_parents']) - 1;
+  $parent_delta = $element['#field_parents'][$depth];
+  $id = $instance['id'] . '-' . $parent_delta . '-' . $delta;

I haven't tested this, but it is probably better long-term to have a more generic solution, as there may be other modules that create nested fields like this.