80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
import django_filters
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from django.conf import settings
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from django.contrib.postgres.search import TrigramSimilarity
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from django.db.models import Q
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from django.utils.translation import gettext as _
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from cookbook.forms import MultiSelectWidget
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from cookbook.models import Food, Keyword, Recipe, ShoppingList
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class RecipeFilter(django_filters.FilterSet):
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name = django_filters.CharFilter(method='filter_name')
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keywords = django_filters.ModelMultipleChoiceFilter(
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queryset=Keyword.objects.all(),
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widget=MultiSelectWidget,
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method='filter_keywords'
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)
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foods = django_filters.ModelMultipleChoiceFilter(
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queryset=Food.objects.all(),
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widget=MultiSelectWidget,
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method='filter_foods',
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label=_('Ingredients')
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)
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@staticmethod
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def filter_keywords(queryset, name, value):
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if not name == 'keywords':
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return queryset
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for x in value:
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queryset = queryset.filter(keywords=x)
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return queryset
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@staticmethod
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def filter_foods(queryset, name, value):
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if not name == 'foods':
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return queryset
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for x in value:
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queryset = queryset.filter(
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steps__ingredients__food__name=x
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).distinct()
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return queryset
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@staticmethod
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def filter_name(queryset, name, value):
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if not name == 'name':
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return queryset
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if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.postgresql_psycopg2': # noqa: E501
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queryset = queryset \
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.annotate(similarity=TrigramSimilarity('name', value), ) \
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.filter(Q(similarity__gt=0.1) | Q(name__unaccent__icontains=value)) \
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.order_by('-similarity')
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else:
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queryset = queryset.filter(name__icontains=value)
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return queryset
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class Meta:
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model = Recipe
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fields = ['name', 'keywords', 'foods', 'internal']
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class IngredientFilter(django_filters.FilterSet):
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name = django_filters.CharFilter(lookup_expr='icontains')
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class Meta:
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model = Food
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fields = ['name']
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class ShoppingListFilter(django_filters.FilterSet):
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def __init__(self, data=None, *args, **kwargs):
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if data is not None:
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data = data.copy()
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data.setdefault("finished", False)
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super(ShoppingListFilter, self).__init__(data, *args, **kwargs)
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class Meta:
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model = ShoppingList
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fields = ['finished']
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