'Related entity' entity relationship text field needs to display exact matches only

[philgooch]

When there are a large number of entities in EATS, adding a new entity relationship is quite unwieldy, as typing text into the Related Entity field displays a large number of approximate matches. Can this just display exact matches as the user types?

[ajenhl]

Another tricky one, as the inexact matching is often going to be useful. Perhaps some way of toggling between the two behaviours?

To make the change in your specific case, modify eats_topic_map.py so that lookup_entities takes a new Boolean argument specifying whether an exact match is wanted, and have lookups.py's get_query method pass in True. In lookup_entities, pass the Boolean through to _create_lookup_query and use it to vary between the existing istartswith query term and iexact.

So, something like:

def _create_lookup_query (self, name, is_exact):
    query = None
    name_forms = create_name_forms(unicode(name))
    for name_form in name_forms:
        if query is None:
            if is_exact:
                query = Q(indexed_names__form__iexact=name_form)
            else:
                query = Q(indexed_names__form__istartswith=name_form)
        else:
            if is_exact:
                query = query | Q(indexed_names__form__iexact=name_form)
            else:
                query = query | Q(indexed_names__form__istartswith=name_form)
    return query

[philgooch]

Thanks Jamie, this looks like it will do the trick. Will give this a try. Many thanks!