Handling various levels of nesting in the Django REST Framework

Question

For example, if you take models:

class Region(models.Model):
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=256)

class Company(models.Model):
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=256)
    region = models.ForeignKey('Region', db_index=True)

class Staff(models.Model):
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=256)
    company = models.ForeignKey('Company', db_index=True)

I know that I do not need to include an identifier in these models, but I did this to make it more clear.

In this example, sometimes you just need to return a list of regions. At other times, you would like to return a list of regions with a list of all regional companies in each region.

You also, I believe, would like to receive even more detailed information about where you have a list of regions, their subsidiaries and the children of each employee.

What is the best way to handle these different levels of depth / detail with respect to the frame representations of the rest. How do people usually deal with this?

, , , , , ?

Answer 1

- > = True ( )

class SimpleRegionSerializer(serializers.ModelSerializer):
    class Meta:
        model = Region
        fields = ('id', 'name')

- >

 class CompanySerializer(serializers.ModelSerializer):
     class Meta:
         model = Company
         fields = ('id', 'name')

 class NestedRegionSerializer(serializers.ModelSerializer):
     company = CompanySerializer(many=True, read_only=True)

     class Meta:
         model = Region
         fields = ('id', 'name')

 class Company(models.Model):
     id = models.AutoField(primary_key=True)
     name = models.CharField(max_length=256)
     region = models.ForeignKey('Region', db_index=True, related_name='company')

related_name NestedRegionSerializer.

syncdb

. http://www.django-rest-framework.org/api-guide/relations/#nested-relationships.

. , "" -, .