42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
from django.contrib.contenttypes.models import ContentType
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from django.db import connection, models
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from django.utils import timezone
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from django.utils.translation import gettext_lazy as _
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from users.models import APIdentity
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from .common import Piece, VisibilityType
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class Like(Piece): # TODO remove
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owner = models.ForeignKey(APIdentity, on_delete=models.PROTECT)
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visibility = models.PositiveSmallIntegerField(
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choices=VisibilityType.choices, default=0, null=False
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) # type:ignore
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created_time = models.DateTimeField(default=timezone.now)
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edited_time = models.DateTimeField(auto_now=True)
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target = models.ForeignKey(Piece, on_delete=models.CASCADE, related_name="likes")
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@staticmethod
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def user_liked_piece(owner, piece):
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return Like.objects.filter(owner=owner, target=piece).exists()
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@staticmethod
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def user_like_piece(owner, piece):
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if not piece:
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return
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like = Like.objects.filter(owner=owner, target=piece).first()
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if not like:
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like = Like.objects.create(owner=owner, target=piece)
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return like
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@staticmethod
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def user_unlike_piece(owner, piece):
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if not piece:
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return
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Like.objects.filter(owner=owner, target=piece).delete()
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@staticmethod
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def user_likes_by_class(owner, cls):
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ctype_id = ContentType.objects.get_for_model(cls)
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return Like.objects.filter(owner=owner, target__polymorphic_ctype=ctype_id)
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