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Trying to create nested view of django model classes using relations

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1

I am trying to follow this documentation to create nested serializer and api view.
https://www.django-rest-framework.org/api-guide/relations/#nested-relationships

However, I am not able to understand what did I miss as my results are not expected.

I have followed this example to my case and checked various other guides regarding same. Tried different views and different serializer formats.

Code for model is this:-

class Round(models.Model):
 player_num = models.IntegerField(null=False, default=1)

class Seats(models.Model):
 stack = models.IntegerField(null=False, default=0)
 round = models.ForeignKey(Round, on_delete=models.CASCADE)
 state = models.IntegerField(choices=STATE)

code for Serializers is this:-

class SeatsSerializer(serializers.ModelSerializer):
 class Meta:
 model = Seats
 fields = ('stack','state')

class RoundSerializer(serializers.ModelSerializer):
 seats = SeatsSerializer(many = True, read_only=True)

 class Meta:
 model = Round
 fields = ('player_num','seats')

I want output like this:

 'player_num': 3,
 'seats': [
 'stack': 100, 'state': 'participating', 'name': 'p1', 'uuid': 'ftwdqkystzsqwjrzvludgi',
 'stack': 100, 'state': 'participating', 'name': 'p2', 'uuid': 'bbiuvgalrglojvmgggydyt',
 ]

However, output I get is:

 'player_num': 3,

django rest api django-rest-framework

share|improve this question

edited Mar 28 at 12:30

Himanshu Sharma

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There needs to be a relationship between the Seats and Round models if you want to use DRF nested serializers.
  
  – Endre Both
  Mar 28 at 12:27
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There is, I made a typo. I made the edit now. Please check
  
  – Himanshu Sharma
  Mar 28 at 12:30
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Try replacing seats with seats_set in RoundSerializer (2x).
  
  – Endre Both
  Mar 28 at 12:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Oh .. works!! Such lame error. Thanks!
  
  – Himanshu Sharma
  Mar 28 at 13:04
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  No problem. Consider using singular model names though (Seat).
  
  – Endre Both
  Mar 28 at 13:11
  

  
  
  
  

add a comment
 | 

1

I am trying to follow this documentation to create nested serializer and api view.
https://www.django-rest-framework.org/api-guide/relations/#nested-relationships

However, I am not able to understand what did I miss as my results are not expected.

I have followed this example to my case and checked various other guides regarding same. Tried different views and different serializer formats.

Code for model is this:-

class Round(models.Model):
 player_num = models.IntegerField(null=False, default=1)

class Seats(models.Model):
 stack = models.IntegerField(null=False, default=0)
 round = models.ForeignKey(Round, on_delete=models.CASCADE)
 state = models.IntegerField(choices=STATE)

code for Serializers is this:-

class SeatsSerializer(serializers.ModelSerializer):
 class Meta:
 model = Seats
 fields = ('stack','state')

class RoundSerializer(serializers.ModelSerializer):
 seats = SeatsSerializer(many = True, read_only=True)

 class Meta:
 model = Round
 fields = ('player_num','seats')

I want output like this:

 'player_num': 3,
 'seats': [
 'stack': 100, 'state': 'participating', 'name': 'p1', 'uuid': 'ftwdqkystzsqwjrzvludgi',
 'stack': 100, 'state': 'participating', 'name': 'p2', 'uuid': 'bbiuvgalrglojvmgggydyt',
 ]

However, output I get is:

 'player_num': 3,

django rest api django-rest-framework

share|improve this question

edited Mar 28 at 12:30

Himanshu Sharma

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There needs to be a relationship between the Seats and Round models if you want to use DRF nested serializers.
  
  – Endre Both
  Mar 28 at 12:27
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There is, I made a typo. I made the edit now. Please check
  
  – Himanshu Sharma
  Mar 28 at 12:30
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Try replacing seats with seats_set in RoundSerializer (2x).
  
  – Endre Both
  Mar 28 at 12:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Oh .. works!! Such lame error. Thanks!
  
  – Himanshu Sharma
  Mar 28 at 13:04
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  No problem. Consider using singular model names though (Seat).
  
  – Endre Both
  Mar 28 at 13:11
  

  
  
  
  

add a comment
 | 

I am trying to follow this documentation to create nested serializer and api view.
https://www.django-rest-framework.org/api-guide/relations/#nested-relationships

However, I am not able to understand what did I miss as my results are not expected.

I have followed this example to my case and checked various other guides regarding same. Tried different views and different serializer formats.

Code for model is this:-

class Round(models.Model):
 player_num = models.IntegerField(null=False, default=1)

class Seats(models.Model):
 stack = models.IntegerField(null=False, default=0)
 round = models.ForeignKey(Round, on_delete=models.CASCADE)
 state = models.IntegerField(choices=STATE)

code for Serializers is this:-

class SeatsSerializer(serializers.ModelSerializer):
 class Meta:
 model = Seats
 fields = ('stack','state')

class RoundSerializer(serializers.ModelSerializer):
 seats = SeatsSerializer(many = True, read_only=True)

 class Meta:
 model = Round
 fields = ('player_num','seats')

I want output like this:

 'player_num': 3,
 'seats': [
 'stack': 100, 'state': 'participating', 'name': 'p1', 'uuid': 'ftwdqkystzsqwjrzvludgi',
 'stack': 100, 'state': 'participating', 'name': 'p2', 'uuid': 'bbiuvgalrglojvmgggydyt',
 ]

However, output I get is:

 'player_num': 3,

django rest api django-rest-framework

share|improve this question

edited Mar 28 at 12:30

Himanshu Sharma

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

class Round(models.Model):
 player_num = models.IntegerField(null=False, default=1)

class Seats(models.Model):
 stack = models.IntegerField(null=False, default=0)
 round = models.ForeignKey(Round, on_delete=models.CASCADE)
 state = models.IntegerField(choices=STATE)

class SeatsSerializer(serializers.ModelSerializer):
 class Meta:
 model = Seats
 fields = ('stack','state')

class RoundSerializer(serializers.ModelSerializer):
 seats = SeatsSerializer(many = True, read_only=True)

 class Meta:
 model = Round
 fields = ('player_num','seats')

 'player_num': 3,
 'seats': [
 'stack': 100, 'state': 'participating', 'name': 'p1', 'uuid': 'ftwdqkystzsqwjrzvludgi',
 'stack': 100, 'state': 'participating', 'name': 'p2', 'uuid': 'bbiuvgalrglojvmgggydyt',
 ]

 'player_num': 3,

share|improve this question

edited Mar 28 at 12:30

Himanshu Sharma

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

share|improve this question

edited Mar 28 at 12:30

Himanshu Sharma

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

asked Mar 28 at 12:19

Himanshu SharmaHimanshu Sharma

5799 bronze badges

1 Answer
1

active

oldest

votes

2

Try this:

round = models.ForeignKey(Round, on_delete=models.CASCADE, related_name='seats')

share|improve this answer

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges

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 | 

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2

Try this:

round = models.ForeignKey(Round, on_delete=models.CASCADE, related_name='seats')

share|improve this answer

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges

add a comment
 | 

2

Try this:

round = models.ForeignKey(Round, on_delete=models.CASCADE, related_name='seats')

share|improve this answer

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges

add a comment
 | 

Try this:

round = models.ForeignKey(Round, on_delete=models.CASCADE, related_name='seats')

share|improve this answer

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges

round = models.ForeignKey(Round, on_delete=models.CASCADE, related_name='seats')

share|improve this answer

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges

answered Mar 28 at 19:58

Hugo BrilhanteHugo Brilhante

44533 silver badges1111 bronze badges