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Nice manager representations on serializer classes

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This commit is contained in:
Tom Christie 2014-09-11 20:37:27 +01:00
parent ab40780dc2
commit bf52d04f4c
2 changed files with 19 additions and 6 deletions
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13
rest_framework/utils/representation.py
View File

@ -2,10 +2,23 @@
Helper functions for creating user-friendly representations Helper functions for creating user-friendly representations
of serializer classes and serializer fields. of serializer classes and serializer fields.
""" """
from django.db import models
import re import re
def manager_repr(value):
model = value.model
opts = model._meta
for _, name, manager in opts.concrete_managers + opts.abstract_managers:
if manager == value:
return '%s.%s.all()' % (model._meta.object_name, name)
return repr(value)
def smart_repr(value): def smart_repr(value):
if isinstance(value, models.Manager):
return manager_repr(value)
value = repr(value) value = repr(value)
# Representations like u'help text' # Representations like u'help text'

12
tests/test_model_field_mappings.py
View File

@ -81,9 +81,9 @@ class RelationalModel(models.Model):
RELATIONAL_FLAT_REPR = """ RELATIONAL_FLAT_REPR = """
TestSerializer(): TestSerializer():
id = IntegerField(label='ID', read_only=True) id = IntegerField(label='ID', read_only=True)
foreign_key = PrimaryKeyRelatedField(label='foreign key', queryset=<django.db.models.manager.Manager object>) foreign_key = PrimaryKeyRelatedField(label='foreign key', queryset=ForeignKeyTargetModel.objects.all())
one_to_one = PrimaryKeyRelatedField(label='one to one', queryset=<django.db.models.manager.Manager object>) one_to_one = PrimaryKeyRelatedField(label='one to one', queryset=OneToOneTargetModel.objects.all())
many_to_many = PrimaryKeyRelatedField(label='many to many', many=True, queryset=<django.db.models.manager.Manager object>) many_to_many = PrimaryKeyRelatedField(label='many to many', many=True, queryset=ManyToManyTargetModel.objects.all())
""".strip() """.strip()
@ -105,9 +105,9 @@ TestSerializer():
HYPERLINKED_FLAT_REPR = """ HYPERLINKED_FLAT_REPR = """
TestSerializer(): TestSerializer():
url = HyperlinkedIdentityField(view_name='relationalmodel-detail') url = HyperlinkedIdentityField(view_name='relationalmodel-detail')
foreign_key = HyperlinkedRelatedField(label='foreign key', queryset=<django.db.models.manager.Manager object>, view_name='foreignkeytargetmodel-detail') foreign_key = HyperlinkedRelatedField(label='foreign key', queryset=ForeignKeyTargetModel.objects.all(), view_name='foreignkeytargetmodel-detail')
one_to_one = HyperlinkedRelatedField(label='one to one', queryset=<django.db.models.manager.Manager object>, view_name='onetoonetargetmodel-detail') one_to_one = HyperlinkedRelatedField(label='one to one', queryset=OneToOneTargetModel.objects.all(), view_name='onetoonetargetmodel-detail')
many_to_many = HyperlinkedRelatedField(label='many to many', many=True, queryset=<django.db.models.manager.Manager object>, view_name='manytomanytargetmodel-detail') many_to_many = HyperlinkedRelatedField(label='many to many', many=True, queryset=ManyToManyTargetModel.objects.all(), view_name='manytomanytargetmodel-detail')
""".strip() """.strip()