diff options
Diffstat (limited to 'rest_framework/serializers.py')
| -rw-r--r-- | rest_framework/serializers.py | 52 |
1 files changed, 39 insertions, 13 deletions
diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py index 4210d058..b22ca578 100644 --- a/rest_framework/serializers.py +++ b/rest_framework/serializers.py @@ -6,8 +6,8 @@ form encoded input. Serialization in REST framework is a two-phase process: 1. Serializers marshal between complex types like model instances, and -python primatives. -2. The process of marshalling between python primatives and request and +python primitives. +2. The process of marshalling between python primitives and request and response content is handled by parsers and renderers. """ from __future__ import unicode_literals @@ -42,6 +42,7 @@ def pretty_name(name): class RelationsList(list): _deleted = [] + class NestedValidationError(ValidationError): """ The default ValidationError behavior is to stringify each item in the list @@ -56,9 +57,13 @@ class NestedValidationError(ValidationError): def __init__(self, message): if isinstance(message, dict): - self.messages = [message] + self._messages = [message] else: - self.messages = message + self._messages = message + + @property + def messages(self): + return self._messages class DictWithMetadata(dict): @@ -326,7 +331,7 @@ class BaseSerializer(WritableField): return ret - def from_native(self, data, files): + def from_native(self, data, files=None): """ Deserialize primitives -> objects. """ @@ -407,11 +412,19 @@ class BaseSerializer(WritableField): # Set the serializer object if it exists obj = get_component(self.parent.object, self.source or field_name) if self.parent.object else None - obj = obj.all() if is_simple_callable(getattr(obj, 'all', None)) else obj + + # If we have a model manager or similar object then we need + # to iterate through each instance. + if (self.many and + not hasattr(obj, '__iter__') and + is_simple_callable(getattr(obj, 'all', None))): + obj = obj.all() if self.source == '*': if value: - into.update(value) + reverted_data = self.restore_fields(value, {}) + if not self._errors: + into.update(reverted_data) else: if value in (None, ''): into[(self.source or field_name)] = None @@ -606,6 +619,7 @@ class ModelSerializer(Serializer): models.TextField: CharField, models.CommaSeparatedIntegerField: CharField, models.BooleanField: BooleanField, + models.NullBooleanField: BooleanField, models.FileField: FileField, models.ImageField: ImageField, } @@ -699,7 +713,9 @@ class ModelSerializer(Serializer): is_m2m = isinstance(relation.field, models.fields.related.ManyToManyField) - if is_m2m and not relation.field.rel.through._meta.auto_created: + if (is_m2m and + hasattr(relation.field.rel, 'through') and + not relation.field.rel.through._meta.auto_created): has_through_model = True if nested: @@ -794,6 +810,8 @@ class ModelSerializer(Serializer): # TODO: TypedChoiceField? if model_field.flatchoices: # This ModelField contains choices kwargs['choices'] = model_field.flatchoices + if model_field.null: + kwargs['empty'] = None return ChoiceField(**kwargs) # put this below the ChoiceField because min_value isn't a valid initializer @@ -865,18 +883,18 @@ class ModelSerializer(Serializer): # Reverse fk or one-to-one relations for (obj, model) in meta.get_all_related_objects_with_model(): - field_name = obj.field.related_query_name() + field_name = obj.get_accessor_name() if field_name in attrs: related_data[field_name] = attrs.pop(field_name) # Reverse m2m relations for (obj, model) in meta.get_all_related_m2m_objects_with_model(): - field_name = obj.field.related_query_name() + field_name = obj.get_accessor_name() if field_name in attrs: m2m_data[field_name] = attrs.pop(field_name) # Forward m2m relations - for field in meta.many_to_many: + for field in meta.many_to_many + meta.virtual_fields: if field.name in attrs: m2m_data[field.name] = attrs.pop(field.name) @@ -889,7 +907,10 @@ class ModelSerializer(Serializer): # Update an existing instance... if instance is not None: for key, val in attrs.items(): - setattr(instance, key, val) + try: + setattr(instance, key, val) + except ValueError: + self._errors[key] = self.error_messages['required'] # ...or create a new instance else: @@ -933,11 +954,16 @@ class ModelSerializer(Serializer): del(obj._m2m_data) if getattr(obj, '_related_data', None): + related_fields = dict([ + (field.get_accessor_name(), field) + for field, model + in obj._meta.get_all_related_objects_with_model() + ]) for accessor_name, related in obj._related_data.items(): if isinstance(related, RelationsList): # Nested reverse fk relationship for related_item in related: - fk_field = obj._meta.get_field_by_name(accessor_name)[0].field.name + fk_field = related_fields[accessor_name].field.name setattr(related_item, fk_field, obj) self.save_object(related_item) |