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87 lines
3.2 KiB
87 lines
3.2 KiB
from rest_framework import serializers
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from django.core.files.uploadedfile import SimpleUploadedFile
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from .models import Blog, BlogContent, BlogSeo
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from utils import absolute_url
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from utils.image_compression import maybe_compress_uploaded_file
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# ─── Helper: return full URL for an ImageField ────────────────────────────────
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class AbsoluteImageField(serializers.ImageField):
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"""
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Wraps DRF's ImageField to return a full absolute URL on read,
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while accepting a real uploaded file (InMemoryUploadedFile /
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TemporaryUploadedFile) on write – just like a normal ImageField.
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"""
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def to_internal_value(self, data):
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uploaded = super().to_internal_value(data)
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compressed_bytes = maybe_compress_uploaded_file(uploaded)
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if compressed_bytes is None:
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return uploaded
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return SimpleUploadedFile(
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name=getattr(uploaded, "name", "image"),
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content=compressed_bytes,
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content_type=getattr(uploaded, "content_type", None),
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)
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def to_representation(self, value):
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if not value:
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return None
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request = self.context.get("request")
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url = value.url if hasattr(value, "url") else str(value)
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if request:
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return request.build_absolute_uri(url)
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return url
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# ─── Serializers ──────────────────────────────────────────────────────────────
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class AdminBlogSeoSerializer(serializers.ModelSerializer):
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class Meta:
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model = BlogSeo
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fields = ["id", "title", "keywords", "description", "language"]
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class AdminBlogContentSerializer(serializers.ModelSerializer):
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image = AbsoluteImageField(required=False, allow_null=True)
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class Meta:
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model = BlogContent
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fields = [
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"id", "blog", "title", "content", "slug", "image", "order",
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"created_at", "updated_at",
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]
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class AdminBlogListSerializer(serializers.ModelSerializer):
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"""
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Lightweight serializer for the admin data table.
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Exposes raw JSON fields so the React frontend can manage translations.
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"""
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thumbnail = AbsoluteImageField(required=False, allow_null=True)
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class Meta:
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model = Blog
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fields = [
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"id", "title", "slogan", "summary", "slug", "thumbnail",
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"views_count", "created_at", "updated_at",
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]
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read_only_fields = ["id", "views_count", "created_at", "updated_at"]
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class AdminBlogDetailSerializer(serializers.ModelSerializer):
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"""
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Full serializer for the admin detail/edit view.
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Includes nested contents and SEO data.
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"""
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thumbnail = AbsoluteImageField(required=False, allow_null=True)
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contents = AdminBlogContentSerializer(many=True, read_only=True)
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seos = AdminBlogSeoSerializer(many=True, read_only=True)
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class Meta:
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model = Blog
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fields = [
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"id", "title", "slogan", "summary", "slug", "thumbnail",
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"views_count", "created_at", "updated_at", "contents", "seos",
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]
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read_only_fields = ["id", "views_count", "created_at", "updated_at"]
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