According to the docs:
http://django-grappelli.readthedocs.org/en/latest/customization.html#rearrange-inlines
The two classes for the placeholder are important. First, you need a class placeholder. The second class has to match the id of the inline–group.
All's well and good, I was able to set up my inlines fine, my issue is now - where does grappelli get the "id of the inline group" I can't find any reference, and pouring through the source code is offering me no solace.
Simply, I want to change the element-id that grappelli is using. Currently, it looks to me that it is taking the object name itself and converting to a lowercase name and appending set to the end. Do we have access to override the "id of the inline-group"?
Also, I am not 100% sure exactly how (or where) grappelli is doing this, it is definitely not documented... at all in fact.
Any help would be much appreciated.
It is the id of the inline element on HTML page. You can check the id of the default HTML inline element.
<div id="[related_name of ForeignKey]-group">
For example: If in model "MyModel2", you have a ForeignKey like this:
my_model_1 = models.ForeignKey(MyModel1, related_name='my_model_2')
Then the id should be "my_model_2-group".