c3lf-system-3/core/inventory/serializers.py
jedi 04636a6408
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Python

from django.utils import timezone
from rest_framework import serializers
from rest_framework.relations import SlugRelatedField
from files.models import File
from inventory.models import Event, Container, Item
from mail.models import EventAddress
# class EventAdressSerializer(serializers.ModelSerializer):
# class Meta:
# model = EventAddress
# fields = ['address']
# def to_internal_value(self, data):
# if not isinstance(data, str):
# raise serializers.ValidationError('This field must be a string.')
#
# def create(self, validated_data):
# return EventAddress.objects.create(**validated_data)
#
# def validate(self, data):
# return isinstance(data, str)
class EventSerializer(serializers.ModelSerializer):
# addresses = EventAdressSerializer(many=True, required=False)
addresses = SlugRelatedField(many=True, slug_field='address', queryset=EventAddress.objects.all())
class Meta:
model = Event
fields = ['eid', 'slug', 'name', 'start', 'end', 'pre_start', 'post_end', 'addresses']
read_only_fields = ['eid']
# def update(self, instance, validated_data):
# addresses = validated_data.pop('addresses', None)
# instance.save(validated_data)
# if addresses:
# for address in addresses:
# nested_instance, created = EventAddress.objects.get_or_create(address=address)
# instance.addresses.add(nested_instance)
#
# return instance
class ContainerSerializer(serializers.ModelSerializer):
itemCount = serializers.SerializerMethodField()
class Meta:
model = Container
fields = ['id', 'name', 'itemCount']
read_only_fields = ['id', 'itemCount']
def get_itemCount(self, instance):
return len(instance.items)
class ItemSerializer(serializers.ModelSerializer):
dataImage = serializers.CharField(write_only=True, required=False)
cid = serializers.SerializerMethodField()
box = serializers.SerializerMethodField()
file = serializers.SerializerMethodField()
returned = serializers.SerializerMethodField(required=False)
event = serializers.SlugRelatedField(slug_field='slug', queryset=Event.objects.all(),
allow_null=True, required=False)
class Meta:
model = Item
fields = ['cid', 'box', 'id', 'description', 'file', 'dataImage', 'returned', 'event']
read_only_fields = ['id']
def get_cid(self, instance):
return instance.container.id if instance.container else None
def get_box(self, instance):
return instance.container.name if instance.container else None
def get_file(self, instance):
if len(instance.files.all()) > 0:
return instance.files.all().order_by('-created_at')[0].hash
return None
def get_returned(self, instance):
return instance.returned_at is not None
def to_internal_value(self, data):
container = None
returned = False
if 'cid' in data:
container = Container.objects.get(id=data['cid'])
if 'returned' in data:
returned = data['returned']
internal = super().to_internal_value(data)
if container:
internal['container'] = container
if returned:
internal['returned_at'] = timezone.now()
return internal
def validate(self, attrs):
return super().validate(attrs)
def create(self, validated_data):
if 'dataImage' in validated_data:
file = File.objects.create(data=validated_data['dataImage'])
validated_data.pop('dataImage')
item = Item.objects.create(**validated_data)
item.files.set([file])
return item
return Item.objects.create(**validated_data)
def update(self, instance, validated_data):
if 'returned' in validated_data:
if validated_data['returned']:
validated_data['returned_at'] = timezone.now()
validated_data.pop('returned')
if 'dataImage' in validated_data:
file = File.objects.create(data=validated_data['dataImage'])
validated_data.pop('dataImage')
instance.files.add(file)
return super().update(instance, validated_data)
class SearchResultSerializer(serializers.Serializer):
search_score = serializers.IntegerField()
item = ItemSerializer()
def to_representation(self, instance):
return {**ItemSerializer(instance['item']).data, 'search_score': instance['search_score']}
class Meta:
model = Item