Why does Django add 'IS NOT NULL' to SQL clause?
0
I have model:
class Profile:
...
phone = models.CharField(max_length=50, blank=True, null=True)
...
When I run queryset:
Profile.objects.exclude(phone='', phone__isnull=True).values('phone')
It create SQL code:
SELECT "user_profile_profile"."phone" FROM "user_profile_profile" WHERE NOT ("user_profile_profile"."phone" IS NULL AND "user_profile_profile"."phone" = '' AND "user_profile_profile"."phone" IS NOT NULL); args=('',)
And it is wrong because it return all phone include phone=None and phone=''.
python django
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
add a comment |
0
I have model:
class Profile:
...
phone = models.CharField(max_length=50, blank=True, null=True)
...
When I run queryset:
Profile.objects.exclude(phone='', phone__isnull=True).values('phone')
It create SQL code:
SELECT "user_profile_profile"."phone" FROM "user_profile_profile" WHERE NOT ("user_profile_profile"."phone" IS NULL AND "user_profile_profile"."phone" = '' AND "user_profile_profile"."phone" IS NOT NULL); args=('',)
And it is wrong because it return all phone include phone=None and phone=''.
python django
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
What do you want to query actually ?
– MD. Khairul Basar
Nov 17 '18 at 4:03
I expect it isNOT ("user_profile_profile"."phone" = '') AND NOT ("user_profile_profile"."phone" IS NULL). And why was"user_profile_profile"."phone" IS NOT NULLadded?
– Vân Phong Nguyễn
Nov 17 '18 at 4:22
add a comment |
0
0
0
I have model:
class Profile:
...
phone = models.CharField(max_length=50, blank=True, null=True)
...
When I run queryset:
Profile.objects.exclude(phone='', phone__isnull=True).values('phone')
It create SQL code:
SELECT "user_profile_profile"."phone" FROM "user_profile_profile" WHERE NOT ("user_profile_profile"."phone" IS NULL AND "user_profile_profile"."phone" = '' AND "user_profile_profile"."phone" IS NOT NULL); args=('',)
And it is wrong because it return all phone include phone=None and phone=''.
python django
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
I have model:
class Profile:
...
phone = models.CharField(max_length=50, blank=True, null=True)
...
When I run queryset:
Profile.objects.exclude(phone='', phone__isnull=True).values('phone')
It create SQL code:
SELECT "user_profile_profile"."phone" FROM "user_profile_profile" WHERE NOT ("user_profile_profile"."phone" IS NULL AND "user_profile_profile"."phone" = '' AND "user_profile_profile"."phone" IS NOT NULL); args=('',)
And it is wrong because it return all phone include phone=None and phone=''.
python django
python django
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
edited Nov 17 '18 at 4:03
MD. Khairul Basar
2,772101938
2,772101938
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
asked Nov 17 '18 at 3:49
Vân Phong Nguyễn
4016
4016
What do you want to query actually ?
– MD. Khairul Basar
Nov 17 '18 at 4:03
I expect it isNOT ("user_profile_profile"."phone" = '') AND NOT ("user_profile_profile"."phone" IS NULL). And why was"user_profile_profile"."phone" IS NOT NULLadded?
– Vân Phong Nguyễn
Nov 17 '18 at 4:22
add a comment |
What do you want to query actually ?
– MD. Khairul Basar
Nov 17 '18 at 4:03
I expect it isNOT ("user_profile_profile"."phone" = '') AND NOT ("user_profile_profile"."phone" IS NULL). And why was"user_profile_profile"."phone" IS NOT NULLadded?
– Vân Phong Nguyễn
Nov 17 '18 at 4:22
What do you want to query actually ?
– MD. Khairul Basar
Nov 17 '18 at 4:03
What do you want to query actually ?
– MD. Khairul Basar
Nov 17 '18 at 4:03
I expect it is
NOT ("user_profile_profile"."phone" = '') AND NOT ("user_profile_profile"."phone" IS NULL). And why was "user_profile_profile"."phone" IS NOT NULL added?– Vân Phong Nguyễn
Nov 17 '18 at 4:22
I expect it is
NOT ("user_profile_profile"."phone" = '') AND NOT ("user_profile_profile"."phone" IS NULL). And why was "user_profile_profile"."phone" IS NOT NULL added?– Vân Phong Nguyễn
Nov 17 '18 at 4:22
add a comment |
1 Answer
1
active
oldest
votes
1
You need to split the exclude condition to two parts:
Profile.objects.exclude(phone='').exclude(phone__isnull=True).values('phone')
or use Q object
from django.db.models import Q
Profile.objects.exclude(Q(phone='')|Q(phone__isnull=True)).values('phone')
answered Nov 17 '18 at 4:14
Yriuns
301316
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
You need to split the exclude condition to two parts:
Profile.objects.exclude(phone='').exclude(phone__isnull=True).values('phone')
or use Q object
from django.db.models import Q
Profile.objects.exclude(Q(phone='')|Q(phone__isnull=True)).values('phone')
answered Nov 17 '18 at 4:14
Yriuns
301316
add a comment |
1
You need to split the exclude condition to two parts:
Profile.objects.exclude(phone='').exclude(phone__isnull=True).values('phone')
or use Q object
from django.db.models import Q
Profile.objects.exclude(Q(phone='')|Q(phone__isnull=True)).values('phone')
answered Nov 17 '18 at 4:14
Yriuns
301316
add a comment |
1
1
1
You need to split the exclude condition to two parts:
Profile.objects.exclude(phone='').exclude(phone__isnull=True).values('phone')
or use Q object
from django.db.models import Q
Profile.objects.exclude(Q(phone='')|Q(phone__isnull=True)).values('phone')
answered Nov 17 '18 at 4:14
Yriuns
301316
You need to split the exclude condition to two parts:
Profile.objects.exclude(phone='').exclude(phone__isnull=True).values('phone')
or use Q object
from django.db.models import Q
Profile.objects.exclude(Q(phone='')|Q(phone__isnull=True)).values('phone')
answered Nov 17 '18 at 4:14
Yriuns
301316
answered Nov 17 '18 at 4:14
Yriuns
301316
answered Nov 17 '18 at 4:14
Yriuns
301316
answered Nov 17 '18 at 4:14
Yriuns
301316
301316
add a comment |
add a comment |
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What do you want to query actually ?
– MD. Khairul Basar
Nov 17 '18 at 4:03
I expect it is
NOT ("user_profile_profile"."phone" = '') AND NOT ("user_profile_profile"."phone" IS NULL). And why was"user_profile_profile"."phone" IS NOT NULLadded?– Vân Phong Nguyễn
Nov 17 '18 at 4:22