Cannot set values on a ManyToManyField which specifies an intermediary model
0
How can I set values on to a ManyToManyField which specifies an intermediary model?
In the models.py
class BookUser(models.Model):
email = models.EmailField()
class Book(models.Model):
author_id= models.CharField(max_length=255)
send_to = models.ManyToManyField(BookUser, through='BookUserRelationship')
book_id = models.AutoField(primary_key=True)
file_size = models.CharField(null=True)
class BookUserRelationship(models.Model):
book = models.ForeignKey(Book, on_delete=models.CASCADE)
user = models.ForeignKey(BookUser, on_delete=models.CASCADE)
shared_date = models.DateTimeField(auto_now_add=True,null=True,blank=True)
Tried to update in serializers.py
class BookSerializer(serializers.ModelSerializer):
send_to = BookUserSerializer(many=True, read_only=True)
class Meta():
model = Book
fields = ('book_id', 'author_id','file_size','send_to')
class BookUserSerializer(serializers.ModelSerializer):
model = BookUser
fields = ('email')
In the views.py for listing the books by passing the book_id as query params
class BookListView(generics.ListCreateAPIView):
serializer_class = serializers.BookSerializer
def get(self, request, *args, **kwargs):
user = self.request.user
book_id = self.request.query_params.get('book_id', None)
if book_id:
book = models.Book.objects.filter(book_id=book_id)
return Response(serializers.BookSerializer(book[0]).data)
django django-rest-framework many-to-many
asked Nov 19 '18 at 9:20
kkrkkr
206
add a comment |
0
How can I set values on to a ManyToManyField which specifies an intermediary model?
In the models.py
class BookUser(models.Model):
email = models.EmailField()
class Book(models.Model):
author_id= models.CharField(max_length=255)
send_to = models.ManyToManyField(BookUser, through='BookUserRelationship')
book_id = models.AutoField(primary_key=True)
file_size = models.CharField(null=True)
class BookUserRelationship(models.Model):
book = models.ForeignKey(Book, on_delete=models.CASCADE)
user = models.ForeignKey(BookUser, on_delete=models.CASCADE)
shared_date = models.DateTimeField(auto_now_add=True,null=True,blank=True)
Tried to update in serializers.py
class BookSerializer(serializers.ModelSerializer):
send_to = BookUserSerializer(many=True, read_only=True)
class Meta():
model = Book
fields = ('book_id', 'author_id','file_size','send_to')
class BookUserSerializer(serializers.ModelSerializer):
model = BookUser
fields = ('email')
In the views.py for listing the books by passing the book_id as query params
class BookListView(generics.ListCreateAPIView):
serializer_class = serializers.BookSerializer
def get(self, request, *args, **kwargs):
user = self.request.user
book_id = self.request.query_params.get('book_id', None)
if book_id:
book = models.Book.objects.filter(book_id=book_id)
return Response(serializers.BookSerializer(book[0]).data)
django django-rest-framework many-to-many
asked Nov 19 '18 at 9:20
kkrkkr
206
This is too broad. You need to show your models, and what you tried.
– Daniel Roseman
Nov 19 '18 at 9:46
I am very new in the Django drf programming, can you please help me with the problem? Edited the question and added the models.
– kkr
Nov 19 '18 at 10:09
Thanks but you also need to show how you are trying to set the values.
– Daniel Roseman
Nov 19 '18 at 10:11
Can you please help me with solution
– kkr
Nov 19 '18 at 11:08
add a comment |
0
0
0
How can I set values on to a ManyToManyField which specifies an intermediary model?
In the models.py
class BookUser(models.Model):
email = models.EmailField()
class Book(models.Model):
author_id= models.CharField(max_length=255)
send_to = models.ManyToManyField(BookUser, through='BookUserRelationship')
book_id = models.AutoField(primary_key=True)
file_size = models.CharField(null=True)
class BookUserRelationship(models.Model):
book = models.ForeignKey(Book, on_delete=models.CASCADE)
user = models.ForeignKey(BookUser, on_delete=models.CASCADE)
shared_date = models.DateTimeField(auto_now_add=True,null=True,blank=True)
Tried to update in serializers.py
class BookSerializer(serializers.ModelSerializer):
send_to = BookUserSerializer(many=True, read_only=True)
class Meta():
model = Book
fields = ('book_id', 'author_id','file_size','send_to')
class BookUserSerializer(serializers.ModelSerializer):
model = BookUser
fields = ('email')
In the views.py for listing the books by passing the book_id as query params
class BookListView(generics.ListCreateAPIView):
serializer_class = serializers.BookSerializer
def get(self, request, *args, **kwargs):
user = self.request.user
book_id = self.request.query_params.get('book_id', None)
if book_id:
book = models.Book.objects.filter(book_id=book_id)
return Response(serializers.BookSerializer(book[0]).data)
django django-rest-framework many-to-many
asked Nov 19 '18 at 9:20
kkrkkr
206
How can I set values on to a ManyToManyField which specifies an intermediary model?
In the models.py
class BookUser(models.Model):
email = models.EmailField()
class Book(models.Model):
author_id= models.CharField(max_length=255)
send_to = models.ManyToManyField(BookUser, through='BookUserRelationship')
book_id = models.AutoField(primary_key=True)
file_size = models.CharField(null=True)
class BookUserRelationship(models.Model):
book = models.ForeignKey(Book, on_delete=models.CASCADE)
user = models.ForeignKey(BookUser, on_delete=models.CASCADE)
shared_date = models.DateTimeField(auto_now_add=True,null=True,blank=True)
Tried to update in serializers.py
class BookSerializer(serializers.ModelSerializer):
send_to = BookUserSerializer(many=True, read_only=True)
class Meta():
model = Book
fields = ('book_id', 'author_id','file_size','send_to')
class BookUserSerializer(serializers.ModelSerializer):
model = BookUser
fields = ('email')
In the views.py for listing the books by passing the book_id as query params
class BookListView(generics.ListCreateAPIView):
serializer_class = serializers.BookSerializer
def get(self, request, *args, **kwargs):
user = self.request.user
book_id = self.request.query_params.get('book_id', None)
if book_id:
book = models.Book.objects.filter(book_id=book_id)
return Response(serializers.BookSerializer(book[0]).data)
django django-rest-framework many-to-many
django django-rest-framework many-to-many
asked Nov 19 '18 at 9:20
kkrkkr
206
asked Nov 19 '18 at 9:20
kkrkkr
206
edited Nov 20 '18 at 5:13
kkr
asked Nov 19 '18 at 9:20
kkrkkr
206
asked Nov 19 '18 at 9:20
kkrkkr
206
asked Nov 19 '18 at 9:20
kkrkkr
206
206
This is too broad. You need to show your models, and what you tried.
– Daniel Roseman
Nov 19 '18 at 9:46
I am very new in the Django drf programming, can you please help me with the problem? Edited the question and added the models.
– kkr
Nov 19 '18 at 10:09
Thanks but you also need to show how you are trying to set the values.
– Daniel Roseman
Nov 19 '18 at 10:11
Can you please help me with solution
– kkr
Nov 19 '18 at 11:08
add a comment |
This is too broad. You need to show your models, and what you tried.
– Daniel Roseman
Nov 19 '18 at 9:46
I am very new in the Django drf programming, can you please help me with the problem? Edited the question and added the models.
– kkr
Nov 19 '18 at 10:09
Thanks but you also need to show how you are trying to set the values.
– Daniel Roseman
Nov 19 '18 at 10:11
Can you please help me with solution
– kkr
Nov 19 '18 at 11:08
This is too broad. You need to show your models, and what you tried.
– Daniel Roseman
Nov 19 '18 at 9:46
This is too broad. You need to show your models, and what you tried.
– Daniel Roseman
Nov 19 '18 at 9:46
I am very new in the Django drf programming, can you please help me with the problem? Edited the question and added the models.
– kkr
Nov 19 '18 at 10:09
I am very new in the Django drf programming, can you please help me with the problem? Edited the question and added the models.
– kkr
Nov 19 '18 at 10:09
Thanks but you also need to show how you are trying to set the values.
– Daniel Roseman
Nov 19 '18 at 10:11
Thanks but you also need to show how you are trying to set the values.
– Daniel Roseman
Nov 19 '18 at 10:11
Can you please help me with solution
– kkr
Nov 19 '18 at 11:08
Can you please help me with solution
– kkr
Nov 19 '18 at 11:08
add a comment |
1 Answer
1
active
oldest
votes
0
You don't need to do anything at all. You have already set the relevant data in your for loop, by creating the BookUserRelationship instances. That is the many-to-many relationship; you should just remove the instance.send_to.set(emails) line.
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
|
show 5 more comments
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1 Answer
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1 Answer
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active
oldest
votes
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oldest
votes
active
oldest
votes
0
You don't need to do anything at all. You have already set the relevant data in your for loop, by creating the BookUserRelationship instances. That is the many-to-many relationship; you should just remove the instance.send_to.set(emails) line.
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
|
show 5 more comments
0
You don't need to do anything at all. You have already set the relevant data in your for loop, by creating the BookUserRelationship instances. That is the many-to-many relationship; you should just remove the instance.send_to.set(emails) line.
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
|
show 5 more comments
0
0
0
You don't need to do anything at all. You have already set the relevant data in your for loop, by creating the BookUserRelationship instances. That is the many-to-many relationship; you should just remove the instance.send_to.set(emails) line.
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
You don't need to do anything at all. You have already set the relevant data in your for loop, by creating the BookUserRelationship instances. That is the many-to-many relationship; you should just remove the instance.send_to.set(emails) line.
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
answered Nov 19 '18 at 11:09
Daniel RosemanDaniel Roseman
446k41577633
446k41577633
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
|
show 5 more comments
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Thankyou, But while taking the response I am not getting it. Instead of that error 'str' object has no attribute 'values' is coming.
– kkr
Nov 19 '18 at 11:13
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Where is that error happening? It doesn't seem to have anything to do with this code. Please edit the question to show the full traceback.
– Daniel Roseman
Nov 19 '18 at 11:15
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you please have a look into this problem. The send_to field is having the value None
– kkr
Nov 19 '18 at 11:57
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
Can you show your BookUserSerializer?
– Daniel Roseman
Nov 19 '18 at 12:24
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
added BookUserSerializer also, Can you please help? Thanks in advance.
– kkr
Nov 20 '18 at 8:45
|
show 5 more comments
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This is too broad. You need to show your models, and what you tried.
– Daniel Roseman
Nov 19 '18 at 9:46
I am very new in the Django drf programming, can you please help me with the problem? Edited the question and added the models.
– kkr
Nov 19 '18 at 10:09
Thanks but you also need to show how you are trying to set the values.
– Daniel Roseman
Nov 19 '18 at 10:11
Can you please help me with solution
– kkr
Nov 19 '18 at 11:08