284 lines
8.5 KiB
Python
284 lines
8.5 KiB
Python
"""Tag serializers."""
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from rest_framework import serializers
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from rest_framework.fields import SerializerMethodField
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from establishment.models import Establishment
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from establishment.models import EstablishmentType
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from news.models import News
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from news.models import NewsType
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from tag import models
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from utils.exceptions import BindingObjectNotFound
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from utils.exceptions import ObjectAlreadyAdded
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from utils.exceptions import RemovedBindingObjectNotFound
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from utils.serializers import TranslatedField
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class TagBaseSerializer(serializers.ModelSerializer):
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"""Serializer for model Tag."""
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def get_extra_kwargs(self):
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return super().get_extra_kwargs()
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label_translated = TranslatedField()
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index_name = serializers.CharField(source='value', read_only=True, allow_null=True)
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class Meta:
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"""Meta class."""
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model = models.Tag
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fields = (
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'id',
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'label_translated',
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'index_name',
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)
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class TagBackOfficeSerializer(TagBaseSerializer):
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"""Serializer for Tag model for Back office users."""
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class Meta(TagBaseSerializer.Meta):
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"""Meta class."""
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fields = TagBaseSerializer.Meta.fields + (
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'label',
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'category'
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)
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class TagCategoryProductSerializer(serializers.ModelSerializer):
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"""SHORT Serializer for TagCategory"""
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label_translated = TranslatedField()
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class Meta:
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"""Meta class."""
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model = models.TagCategory
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fields = (
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'id',
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'label_translated',
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'index_name',
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)
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class TagCategoryBaseSerializer(serializers.ModelSerializer):
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"""Serializer for model TagCategory."""
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label_translated = TranslatedField()
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tags = SerializerMethodField()
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class Meta:
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"""Meta class."""
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model = models.TagCategory
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fields = (
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'id',
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'label_translated',
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'index_name',
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'tags',
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)
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def get_tags(self, obj):
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query_params = dict(self.context['request'].query_params)
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if len(query_params) > 1:
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return []
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params = {}
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if 'establishment_type' in query_params:
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params = {
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'establishments__isnull': False,
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}
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elif 'product_type' in query_params:
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params = {
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'products__isnull': False,
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}
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tags = obj.tags.filter(**params).distinct()
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return TagBaseSerializer(instance=tags, many=True, read_only=True).data
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class FiltersTagCategoryBaseSerializer(serializers.ModelSerializer):
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"""Serializer for model TagCategory."""
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label_translated = TranslatedField()
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filters = SerializerMethodField()
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param_name = SerializerMethodField()
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type = SerializerMethodField()
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class Meta:
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"""Meta class."""
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model = models.TagCategory
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fields = (
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'id',
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'label_translated',
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'index_name',
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'param_name',
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'type',
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'filters',
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)
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def get_type(self, obj):
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return obj in ['open_now', ]
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def get_param_name(self, obj):
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if obj.index_name == 'wine-color':
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return 'wine_colors_id__in'
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return 'tags_id__in'
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def get_fields(self, *args, **kwargs):
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fields = super(FiltersTagCategoryBaseSerializer, self).get_fields()
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if self.get_type(self):
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fields.pop('filters', None)
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else:
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fields.pop('type', None)
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return fields
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def get_filters(self, obj):
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query_params = dict(self.context['request'].query_params)
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params = {}
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if 'establishment_type' in query_params:
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params = {
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'establishments__isnull': False,
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}
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elif 'product_type' in query_params:
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params = {
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'products__isnull': False,
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}
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tags = obj.tags.filter(**params).distinct()
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return TagBaseSerializer(instance=tags, many=True, read_only=True).data
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class TagCategoryShortSerializer(serializers.ModelSerializer):
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"""Serializer for model TagCategory."""
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label_translated = TranslatedField()
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value_type_display = serializers.CharField(source='get_value_type_display',
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read_only=True)
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class Meta(TagCategoryBaseSerializer.Meta):
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"""Meta class."""
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fields = [
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'label_translated',
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'value_type_display',
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]
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class TagCategoryBackOfficeDetailSerializer(TagCategoryBaseSerializer):
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"""Tag Category detail serializer for back-office users."""
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country_translated = TranslatedField(source='country.name_translated')
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class Meta(TagCategoryBaseSerializer.Meta):
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"""Meta class."""
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fields = TagCategoryBaseSerializer.Meta.fields + (
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'label',
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'country',
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'country_translated',
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)
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class TagBindObjectSerializer(serializers.Serializer):
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"""Serializer for binding tag category and objects"""
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ESTABLISHMENT = 'establishment'
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NEWS = 'news'
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TYPE_CHOICES = (
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(ESTABLISHMENT, 'Establishment type'),
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(NEWS, 'News type'),
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)
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type = serializers.ChoiceField(TYPE_CHOICES)
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object_id = serializers.IntegerField()
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def validate(self, attrs):
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view = self.context.get('view')
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request = self.context.get('request')
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obj_type = attrs.get('type')
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obj_id = attrs.get('object_id')
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tag = view.get_object()
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attrs['tag'] = tag
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if obj_type == self.ESTABLISHMENT:
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establishment = Establishment.objects.filter(pk=obj_id).first()
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if not establishment:
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raise BindingObjectNotFound()
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if request.method == 'POST' and tag.establishments.filter(
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pk=establishment.pk).exists():
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raise ObjectAlreadyAdded()
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if request.method == 'DELETE' and not tag.establishments.filter(
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pk=establishment.pk).exists():
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raise RemovedBindingObjectNotFound()
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attrs['related_object'] = establishment
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elif obj_type == self.NEWS:
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news = News.objects.filter(pk=obj_id).first()
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if not news:
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raise BindingObjectNotFound()
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if request.method == 'POST' and tag.news.filter(pk=news.pk).exists():
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raise ObjectAlreadyAdded()
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if request.method == 'DELETE' and not tag.news.filter(
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pk=news.pk).exists():
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raise RemovedBindingObjectNotFound()
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attrs['related_object'] = news
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return attrs
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class TagCategoryBindObjectSerializer(serializers.Serializer):
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"""Serializer for binding tag category and objects"""
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ESTABLISHMENT_TYPE = 'establishment_type'
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NEWS_TYPE = 'news_type'
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TYPE_CHOICES = (
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(ESTABLISHMENT_TYPE, 'Establishment type'),
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(NEWS_TYPE, 'News type'),
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)
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type = serializers.ChoiceField(TYPE_CHOICES)
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object_id = serializers.IntegerField()
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def validate(self, attrs):
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view = self.context.get('view')
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request = self.context.get('request')
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obj_type = attrs.get('type')
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obj_id = attrs.get('object_id')
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tag_category = view.get_object()
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attrs['tag_category'] = tag_category
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if obj_type == self.ESTABLISHMENT_TYPE:
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establishment_type = EstablishmentType.objects.filter(pk=obj_id). \
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first()
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if not establishment_type:
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raise BindingObjectNotFound()
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if request.method == 'POST' and tag_category.establishment_types. \
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filter(pk=establishment_type.pk).exists():
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raise ObjectAlreadyAdded()
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if request.method == 'DELETE' and not tag_category. \
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establishment_types.filter(pk=establishment_type.pk). \
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exists():
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raise RemovedBindingObjectNotFound()
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attrs['related_object'] = establishment_type
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elif obj_type == self.NEWS_TYPE:
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news_type = NewsType.objects.filter(pk=obj_id).first()
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if not news_type:
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raise BindingObjectNotFound()
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if request.method == 'POST' and tag_category.news_types. \
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filter(pk=news_type.pk).exists():
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raise ObjectAlreadyAdded()
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if request.method == 'DELETE' and not tag_category.news_types. \
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filter(pk=news_type.pk).exists():
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raise RemovedBindingObjectNotFound()
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attrs['related_object'] = news_type
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return attrs
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