OpenSlides/openslides/core/serializers.py

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from openslides.utils.rest_api import Field, ModelSerializer, ValidationError
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from .models import ChatMessage, CustomSlide, Projector, Tag
class JSONSerializerField(Field):
"""
Serializer for projector's JSONField.
"""
def to_internal_value(self, data):
"""
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Checks that data is a dictionary. The key is a hex UUID and the
value is a dictionary with must have a key 'name'.
"""
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if type(data) is not dict:
raise ValidationError('Data must be a dictionary.')
for element in data.values():
if type(element) is not dict:
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raise ValidationError('Data must be a dictionary.')
elif element.get('name') is None:
raise ValidationError("Every dictionary must have a key 'name'.")
return data
class ProjectorSerializer(ModelSerializer):
"""
Serializer for core.models.Projector objects.
"""
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config = JSONSerializerField(write_only=True)
class Meta:
model = Projector
fields = ('id', 'config', 'elements', 'scale', 'scroll', )
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class CustomSlideSerializer(ModelSerializer):
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"""
Serializer for core.models.CustomSlide objects.
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"""
class Meta:
model = CustomSlide
fields = ('id', 'title', 'text', 'weight', 'agenda_item_id')
class TagSerializer(ModelSerializer):
"""
Serializer for core.models.Tag objects.
"""
class Meta:
model = Tag
fields = ('id', 'name', )
class ChatMessageSerializer(ModelSerializer):
"""
Serializer for core.models.ChatMessage objects.
"""
class Meta:
model = ChatMessage
fields = ('id', 'message', 'timestamp', 'user', )
read_only_fields = ('user', )