I managed to build my own generical search that works like the admin search. The class is as follows:
from django.db.models import Q
from django.db.models.query import QuerySet
import operator
def django_admin_keyword_search(model, keywords, search_fields):
"""Search according to fields defined in Admin's search_fields"""
all_queries = None
for keyword in keywords.split(' '): #breaks query_string into 'Foo' and 'Bar'
keyword_query = None
for field in search_fields:
each_query = Q(**{field+'__icontains':keyword})
if not keyword_query:
keyword_query = each_query
else:
keyword_query = keyword_query | each_query
if not all_queries:
all_queries = keyword_query
else:
all_queries = all_queries & keyword_query
result_set = model.objects.filter(all_queries).distinct()
return result_set
Enjoy !!