54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
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from rest_framework import serializers
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from apps.reviews.models import Review
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def _display_name(user) -> str:
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if user.name:
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return user.name
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# حریمِ خصوصی: برای کاربرِ بینام، فقط ۴ رقمِ آخرِ شماره نشان داده میشود.
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return f"کاربر ...{user.phone[-4:]}"
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class ReviewSerializer(serializers.ModelSerializer):
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user_display = serializers.SerializerMethodField()
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like_count = serializers.IntegerField(read_only=True)
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liked_by_me = serializers.SerializerMethodField()
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is_mine = serializers.SerializerMethodField()
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class Meta:
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model = Review
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fields = [
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"id", "user_display", "body", "is_approved",
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"like_count", "liked_by_me", "is_mine", "created_at", "updated_at",
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]
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read_only_fields = ["is_approved", "created_at", "updated_at"]
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def get_user_display(self, obj: Review) -> str:
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return _display_name(obj.user)
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def get_liked_by_me(self, obj: Review) -> bool:
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request = self.context.get("request")
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if request is None or not request.user.is_authenticated:
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return False
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# get_liked_ids (اگر در context باشد) از یک کوئریِ batch پر میشود تا
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# برای فهرست، بهازای هر نظر یک کوئریِ جدا نزنیم.
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liked_ids = self.context.get("liked_ids")
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if liked_ids is not None:
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return obj.id in liked_ids
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return obj.likes.filter(user=request.user).exists()
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def get_is_mine(self, obj: Review) -> bool:
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request = self.context.get("request")
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return bool(request and request.user.is_authenticated and obj.user_id == request.user.id)
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class ReviewWriteSerializer(serializers.Serializer):
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body = serializers.CharField(max_length=1000)
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def validate_body(self, value: str) -> str:
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value = value.strip()
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if not value:
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raise serializers.ValidationError("متنِ نظر نمیتواند خالی باشد.")
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return value
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