poulpe/api/event/serializers.py
2017-07-26 13:11:58 +02:00

97 lines
3.4 KiB
Python

from django.shortcuts import get_object_or_404
from rest_framework import serializers
from event.models import Event, ActivityTag, Place, ActivityTemplate
# Event Serializer
class EventSerializer(serializers.HyperlinkedModelSerializer):
created_by = serializers.ReadOnlyField(source='created_by.get_full_name')
creation_date = serializers.ReadOnlyField()
class Meta:
model = Event
fields = ('url', 'id', 'title', 'slug', 'created_by', 'creation_date',
'description', 'beginning_date', 'ending_date')
# Classes utilitaires
class EventSpecificSerializer(serializers.ModelSerializer):
"""
Provide `update` and `create` methods for nested view with an Event
For example for Models which extends EventSpecificMixin
the event id has to be provided in the `save` method
Works fine with view.EventSpecificViewSet
Also provides :
event = eventserializer(allow_null=true, read_only=true)
"""
event = EventSerializer(allow_null=True, read_only=True)
def update(self, instance, validated_data):
"""
Note : does NOT change the event value of the instance
"""
validated_data.pop('event_pk')
[setattr(instance, key, value)
for key, value in validated_data.items()]
instance.save()
return instance
def create(self, validated_data):
ModelClass = self.Meta.model
event_pk = validated_data.pop('event_pk', None)
event = event_pk and get_object_or_404(Event, id=event_pk) or None
instance = ModelClass.objects.create(event=event, **validated_data)
return instance
# Serializers
# TODO rajouter des permissions
class PlaceSerializer(EventSpecificSerializer):
class Meta:
model = Place
fields = ('url', 'id', 'name', 'description', 'event')
# TODO rajouter des permissions
class ActivityTagSerializer(EventSpecificSerializer):
class Meta:
model = ActivityTag
fields = ('url', 'id', 'name', 'is_public', 'color', 'event')
# TODO rajouter des permissions
class ActivityTemplateSerializer(serializers.ModelSerializer):
event = EventSerializer(read_only=True)
tags = ActivityTagSerializer(many=True)
class Meta:
model = ActivityTemplate
fields = ('id', 'title', 'event', 'is_public', 'has_perm',
'min_perm', 'max_perm', 'description', 'remarks', 'tags',)
def update(self, instance, validated_data):
tags_data = validated_data.pop('tags')
validated_data.pop('event_pk')
event = instance.event
[setattr(instance, key, value)
for key, value in validated_data.items()]
instance.save()
tags = [ActivityTag.objects.get_or_create(event=event, **tag_data)[0]
for tag_data in tags_data]
instance.tags.set(tags)
return instance
def create(self, validated_data):
tags_data = validated_data.pop('tags')
event_pk = validated_data.pop('event_pk')
event = event_pk and get_object_or_404(Event, id=event_pk) or None
activity_template = ActivityTemplate.objects.create(event=event,
**validated_data)
tags = [ActivityTag.objects.get_or_create(event=event, **tag_data)[0]
for tag_data in tags_data]
activity_template.tags = tags
return activity_template
class ActivitySerializer(serializers.ModelSerializer):
pass