def generic_filter(generic_qs_model, filter_qs_model, gfk_field=None):
"""
Only show me ratings made on foods that start with "a":
a_foods = Food.objects.filter(name__startswith='a')
generic_filter(Rating.objects.all(), a_foods)
Only show me comments from entries that are marked as public:
generic_filter(Comment.objects.public(), Entry.objects.public())
:param generic_qs_model: A model or queryset containing a GFK, e.g. comments
:param qs_model: A model or a queryset of objects you want to restrict the generic_qs to
:param gfk_field: explicitly specify the field w/the gfk
"""
generic_qs = normalize_qs_model(generic_qs_model)
filter_qs = normalize_qs_model(filter_qs_model)
if not gfk_field:
gfk_field = get_gfk_field(generic_qs.model)
pk_field_type = get_field_type(filter_qs.model._meta.pk)
gfk_field_type = get_field_type(
generic_qs.model._meta.get_field(gfk_field.fk_field))
if pk_field_type != gfk_field_type:
return fallback_generic_filter(generic_qs, filter_qs, gfk_field)
return generic_qs.filter(
**{
gfk_field.ct_field: ContentType.objects.get_for_model(
filter_qs.model),
'%s__in' % gfk_field.fk_field: filter_qs.values('pk'),
})
def generic_filter(generic_qs_model, filter_qs_model, gfk_field=None):
"""
Only show me ratings made on foods that start with "a":
a_foods = Food.objects.filter(name__startswith='a')
generic_filter(Rating.objects.all(), a_foods)
Only show me comments from entries that are marked as public:
generic_filter(Comment.objects.public(), Entry.objects.public())
:param generic_qs_model: A model or queryset containing a GFK, e.g. comments
:param qs_model: A model or a queryset of objects you want to restrict the generic_qs to
:param gfk_field: explicitly specify the field w/the gfk
"""
generic_qs = normalize_qs_model(generic_qs_model)
filter_qs = normalize_qs_model(filter_qs_model)
if not gfk_field:
gfk_field = get_gfk_field(generic_qs.model)
pk_field_type = get_field_type(filter_qs.model._meta.pk)
gfk_field_type = get_field_type(generic_qs.model._meta.get_field(gfk_field.fk_field))
if pk_field_type != gfk_field_type:
return fallback_generic_filter(generic_qs, filter_qs, gfk_field)
return generic_qs.filter(
**{
gfk_field.ct_field: ContentType.objects.get_for_model(filter_qs.model),
"%s__in" % gfk_field.fk_field: filter_qs.values("pk"),
}
)
def generic_filter(self, *args, **kwargs):
return fallback_generic_filter(*args, **kwargs)
def generic_filter(self, *args, **kwargs):
return fallback_generic_filter(*args, **kwargs)
