A simple functional search query creator for Django.

simple_search.py

from django.db.models import Q
from django.utils.text import smart_split

def get_or_query(query_string, fields):
    return reduce(Q.__or__, 
        (Q(**{'%s__iregex' % field: r"[[:<:]]%s" % term.strip('\'"')}) 
            for term in smart_split(query_string) if term not in ['and', 'or'] 
            for field in fields),
        Q())

def get_and_query(query_string, fields):
    return reduce(Q.__and__,
        (reduce(Q.__or__,
            (Q(**{'%s__iregex' % field: r"[[:<:]]%s" % term.strip('\'"')})
                for field in fields),
            Q()) for term in smart_split(query_string) if term not in ['and', 'or']),
        Q())


## Use like:

results = SomeModel.objects.filter(get_or_query("an interesting 'search query'", ["name", "description", "summary"]))