121 lines
4.6 KiB
Python
121 lines
4.6 KiB
Python
from django.shortcuts import get_object_or_404
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from rest_framework import serializers
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from event.models import Event, ActivityTag, Place, ActivityTemplate
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# Event Serializer
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class EventSerializer(serializers.HyperlinkedModelSerializer):
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created_by = serializers.ReadOnlyField(source='created_by.get_full_name')
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creation_date = serializers.ReadOnlyField()
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class Meta:
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model = Event
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fields = ('url', 'id', 'title', 'slug', 'created_by', 'creation_date',
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'description', 'beginning_date', 'ending_date')
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# Classes utilitaires
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class EventSpecificSerializerMixin():
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"""
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Provide `update` and `create` methods for nested view with an Event
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For example for Models which extends EventSpecificMixin
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the event id has to be provided in the `save` method
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Works fine with view.EventSpecificViewSet
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Also provides :
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event = eventserializer(allow_null=true, read_only=true)
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"""
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event = EventSerializer(allow_null=True, read_only=True)
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def update(self, instance, validated_data):
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"""
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Note : does NOT change the event value of the instance
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"""
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validated_data.pop('event_pk')
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[setattr(instance, key, value)
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for key, value in validated_data.items()]
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instance.save()
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return instance
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def create(self, validated_data):
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ModelClass = self.Meta.model
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event_pk = validated_data.pop('event_pk', None)
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event = event_pk and get_object_or_404(Event, id=event_pk) or None
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instance = ModelClass.objects.create(event=event, **validated_data)
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return instance
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# Serializers
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# TODO rajouter des permissions
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class PlaceSerializer(serializers.ModelSerializer,
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EventSpecificSerializerMixin):
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class Meta:
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model = Place
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fields = ('url', 'id', 'name', 'description', 'event')
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# TODO rajouter des permissions
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class ActivityTagSerializer(serializers.ModelSerializer,
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EventSpecificSerializerMixin):
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class Meta:
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model = ActivityTag
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fields = ('url', 'id', 'name', 'is_public', 'color', 'event')
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# TODO rajouter des permissions
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class ActivityTemplateSerializer(serializers.ModelSerializer):
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event = EventSerializer(read_only=True)
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tags = ActivityTagSerializer(many=True)
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class Meta:
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model = ActivityTemplate
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fields = ('id', 'title', 'event', 'is_public', 'has_perm',
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'min_perm', 'max_perm', 'description', 'remarks', 'tags',)
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def update(self, instance, validated_data):
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"""
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@tags comportement attendu : si l'id existe déjà on ne change pas
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les autres champs et si l'id n'existe pas on le créé
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"""
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tags_data = validated_data.pop('tags')
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validated_data.pop('event_pk')
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event = instance.event
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[setattr(instance, key, value)
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for key, value in validated_data.items()]
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instance.save()
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# TODO: en fonction de si backbone envoie un `id` ou non lorsque le tag
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# n'existe pas encore il faudra faire un premier passage sur `tags` i
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# pour s'assurer que le get ne foire pas le get si, par exemple, le tag
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# été modifié entre temps dans la base de donnée (mais pas sur la
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# classe backbone
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for tag_data in tags_data:
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tag_data.pop('event', None)
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tags = [ActivityTag.objects.get_or_create(event=event, **tag_data)[0]
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for tag_data in tags_data]
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instance.tags.set(tags)
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return instance
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def create(self, validated_data):
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"""
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@tags comportement attendu : si l'id existe déjà on ne change pas
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les autres champs et si l'id n'existe pas on le créé
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"""
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tags_data = validated_data.pop('tags')
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event_pk = validated_data.pop('event_pk')
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event = event_pk and get_object_or_404(Event, id=event_pk) or None
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activity_template = ActivityTemplate.objects.create(event=event,
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**validated_data)
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# TODO: en fonction de si backbone envoie un `id` ou non lorsque le tag
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# n'existe pas encore il faudra faire un premier passage sur `tags` i
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# pour s'assurer que le get ne foire pas le get si, par exemple, le tag
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# été modifié entre temps dans la base de donnée (mais pas sur la
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# classe backbone
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for tag_data in tags_data:
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tag_data.pop('event', None)
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tags = [ActivityTag.objects.get_or_create(event=event, **tag_data)[0]
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for tag_data in tags_data]
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activity_template.tags = tags
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return activity_template
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class ActivitySerializer(serializers.ModelSerializer):
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pass
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