mirror of
https://github.com/netbox-community/netbox.git
synced 2024-05-10 07:54:54 +00:00
33 lines
1015 B
Python
33 lines
1015 B
Python
from django.db.models import CharField, TextField, Lookup
|
|
from .fields import CachedValueField
|
|
|
|
|
|
class Empty(Lookup):
|
|
"""
|
|
Filter on whether a string is empty.
|
|
"""
|
|
lookup_name = 'empty'
|
|
|
|
def as_sql(self, qn, connection):
|
|
lhs, lhs_params = self.process_lhs(qn, connection)
|
|
rhs, rhs_params = self.process_rhs(qn, connection)
|
|
params = lhs_params + rhs_params
|
|
return 'CAST(LENGTH(%s) AS BOOLEAN) != %s' % (lhs, rhs), params
|
|
|
|
|
|
class NetContainsOrEquals(Lookup):
|
|
"""
|
|
This lookup has the same functionality as the one from the ipam app except lhs is cast to inet
|
|
"""
|
|
lookup_name = 'net_contains_or_equals'
|
|
|
|
def as_sql(self, qn, connection):
|
|
lhs, lhs_params = self.process_lhs(qn, connection)
|
|
rhs, rhs_params = self.process_rhs(qn, connection)
|
|
params = lhs_params + rhs_params
|
|
return 'CAST(%s as inet) >>= %s' % (lhs, rhs), params
|
|
|
|
|
|
CharField.register_lookup(Empty)
|
|
CachedValueField.register_lookup(NetContainsOrEquals)
|