Django join query set based on condition
0
Models are given below:
class Workspace(models.Model):
wid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
wname = models.CharField(max_length=100)
created_time = models.DateTimeField(auto_now_add=True)
class Invitation(models.Model):
iid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
invite_to = models.ForeignKey(User, related_name="invitation_uid2", on_delete=models.CASCADE)
workspace = models.ForeignKey(Workspace, related_name="invitation_wid", on_delete=models.CASCADE)
created_time = models.DateTimeField(auto_now_add=True)
I need to get the list of workspaces based on invite_to
"select * from Workspace where wid in (select workspace from Invitation where invite_to = 1)"
The above query in ORM type
python django django-models orm django-queryset
asked Nov 18 '18 at 18:21
kaushikkaushik
738
add a comment |
0
Models are given below:
class Workspace(models.Model):
wid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
wname = models.CharField(max_length=100)
created_time = models.DateTimeField(auto_now_add=True)
class Invitation(models.Model):
iid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
invite_to = models.ForeignKey(User, related_name="invitation_uid2", on_delete=models.CASCADE)
workspace = models.ForeignKey(Workspace, related_name="invitation_wid", on_delete=models.CASCADE)
created_time = models.DateTimeField(auto_now_add=True)
I need to get the list of workspaces based on invite_to
"select * from Workspace where wid in (select workspace from Invitation where invite_to = 1)"
The above query in ORM type
python django django-models orm django-queryset
asked Nov 18 '18 at 18:21
kaushikkaushik
738
Why do you want to make a SQLite joint queryset if you can make this query through Django's QuerySet?
– Aurora Wang
Nov 18 '18 at 18:25
Django is also fine @AuroraWang
– kaushik
Nov 18 '18 at 18:26
Can't you do something like: "Workspace.objects.filter(invitation_wid__invite_to__id=1)"?
– Aurora Wang
Nov 18 '18 at 18:29
add a comment |
0
0
0
1
Models are given below:
class Workspace(models.Model):
wid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
wname = models.CharField(max_length=100)
created_time = models.DateTimeField(auto_now_add=True)
class Invitation(models.Model):
iid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
invite_to = models.ForeignKey(User, related_name="invitation_uid2", on_delete=models.CASCADE)
workspace = models.ForeignKey(Workspace, related_name="invitation_wid", on_delete=models.CASCADE)
created_time = models.DateTimeField(auto_now_add=True)
I need to get the list of workspaces based on invite_to
"select * from Workspace where wid in (select workspace from Invitation where invite_to = 1)"
The above query in ORM type
python django django-models orm django-queryset
asked Nov 18 '18 at 18:21
kaushikkaushik
738
Models are given below:
class Workspace(models.Model):
wid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
wname = models.CharField(max_length=100)
created_time = models.DateTimeField(auto_now_add=True)
class Invitation(models.Model):
iid = models.AutoField(primary_key=True, validators=[MinValueValidator(1000)])
invite_to = models.ForeignKey(User, related_name="invitation_uid2", on_delete=models.CASCADE)
workspace = models.ForeignKey(Workspace, related_name="invitation_wid", on_delete=models.CASCADE)
created_time = models.DateTimeField(auto_now_add=True)
I need to get the list of workspaces based on invite_to
"select * from Workspace where wid in (select workspace from Invitation where invite_to = 1)"
The above query in ORM type
python django django-models orm django-queryset
python django django-models orm django-queryset
asked Nov 18 '18 at 18:21
kaushikkaushik
738
asked Nov 18 '18 at 18:21
kaushikkaushik
738
edited Nov 18 '18 at 18:27
kaushik
asked Nov 18 '18 at 18:21
kaushikkaushik
738
asked Nov 18 '18 at 18:21
kaushikkaushik
738
asked Nov 18 '18 at 18:21
kaushikkaushik
738
738
Why do you want to make a SQLite joint queryset if you can make this query through Django's QuerySet?
– Aurora Wang
Nov 18 '18 at 18:25
Django is also fine @AuroraWang
– kaushik
Nov 18 '18 at 18:26
Can't you do something like: "Workspace.objects.filter(invitation_wid__invite_to__id=1)"?
– Aurora Wang
Nov 18 '18 at 18:29
add a comment |
Why do you want to make a SQLite joint queryset if you can make this query through Django's QuerySet?
– Aurora Wang
Nov 18 '18 at 18:25
Django is also fine @AuroraWang
– kaushik
Nov 18 '18 at 18:26
Can't you do something like: "Workspace.objects.filter(invitation_wid__invite_to__id=1)"?
– Aurora Wang
Nov 18 '18 at 18:29
Why do you want to make a SQLite joint queryset if you can make this query through Django's QuerySet?
– Aurora Wang
Nov 18 '18 at 18:25
Why do you want to make a SQLite joint queryset if you can make this query through Django's QuerySet?
– Aurora Wang
Nov 18 '18 at 18:25
Django is also fine @AuroraWang
– kaushik
Nov 18 '18 at 18:26
Django is also fine @AuroraWang
– kaushik
Nov 18 '18 at 18:26
Can't you do something like: "Workspace.objects.filter(invitation_wid__invite_to__id=1)"?
– Aurora Wang
Nov 18 '18 at 18:29
Can't you do something like: "Workspace.objects.filter(invitation_wid__invite_to__id=1)"?
– Aurora Wang
Nov 18 '18 at 18:29
add a comment |
2 Answers
2
active
oldest
votes
1
As I said in the comments, you can do it using Django's QuerySet:
Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
add a comment |
1
If you've got the user id, you can use the double underscore __ syntax to filter across relations:
workspaces = Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
As I said in the comments, you can do it using Django's QuerySet:
Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
add a comment |
1
As I said in the comments, you can do it using Django's QuerySet:
Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
add a comment |
1
1
1
As I said in the comments, you can do it using Django's QuerySet:
Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
As I said in the comments, you can do it using Django's QuerySet:
Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
answered Nov 18 '18 at 18:37
Aurora WangAurora Wang
713216
713216
add a comment |
add a comment |
1
If you've got the user id, you can use the double underscore __ syntax to filter across relations:
workspaces = Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
add a comment |
1
If you've got the user id, you can use the double underscore __ syntax to filter across relations:
workspaces = Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
add a comment |
1
1
1
If you've got the user id, you can use the double underscore __ syntax to filter across relations:
workspaces = Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
If you've got the user id, you can use the double underscore __ syntax to filter across relations:
workspaces = Workspace.objects.filter(invitation_wid__invite_to__id=1)
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
answered Nov 18 '18 at 18:35
RHSmith159RHSmith159
62039
62039
add a comment |
add a comment |
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Why do you want to make a SQLite joint queryset if you can make this query through Django's QuerySet?
– Aurora Wang
Nov 18 '18 at 18:25
Django is also fine @AuroraWang
– kaushik
Nov 18 '18 at 18:26
Can't you do something like: "Workspace.objects.filter(invitation_wid__invite_to__id=1)"?
– Aurora Wang
Nov 18 '18 at 18:29