123 lines
4.6 KiB
Python
123 lines
4.6 KiB
Python
from rest_framework import serializers
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from django.conf import settings
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from .models import Competition, CompetitionEnrollment, ScoreDimension, Project, ProjectFile, Score, Comment, HomePageConfig
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from shop.serializers import WeChatUserSerializer
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def _media_url(file_field):
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"""返回 media 文件的相对路径，避免 build_absolute_uri 生成容器内部地址"""
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if file_field and file_field.name:
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return settings.MEDIA_URL + file_field.name
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return None
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class HomePageConfigSerializer(serializers.ModelSerializer):
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display_banner = serializers.SerializerMethodField()
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class Meta:
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model = HomePageConfig
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fields = ['id', 'banner_image', 'banner_image_url', 'display_banner',
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'main_title', 'organizer', 'undertaker']
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def get_display_banner(self, obj):
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return _media_url(obj.banner_image) or obj.banner_image_url
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class ScoreDimensionSerializer(serializers.ModelSerializer):
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class Meta:
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model = ScoreDimension
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fields = ['id', 'name', 'description', 'weight', 'max_score', 'order']
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class CompetitionSerializer(serializers.ModelSerializer):
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score_dimensions = ScoreDimensionSerializer(many=True, read_only=True)
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display_cover_image = serializers.SerializerMethodField()
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status_display = serializers.CharField(source='get_status_display', read_only=True)
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class Meta:
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model = Competition
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fields = ['id', 'title', 'description', 'rule_description', 'condition_description',
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'cover_image', 'cover_image_url', 'display_cover_image',
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'start_time', 'end_time', 'status', 'project_visibility', 'status_display', 'is_active',
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'score_dimensions', 'created_at']
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def get_display_cover_image(self, obj):
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return _media_url(obj.cover_image) or obj.cover_image_url
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class CompetitionEnrollmentSerializer(serializers.ModelSerializer):
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user = WeChatUserSerializer(read_only=True)
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class Meta:
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model = CompetitionEnrollment
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fields = ['id', 'competition', 'user', 'role', 'status', 'created_at']
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read_only_fields = ['status']
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class ProjectFileSerializer(serializers.ModelSerializer):
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class Meta:
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model = ProjectFile
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fields = ['id', 'project', 'file_type', 'file', 'file_url', 'name', 'created_at']
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def validate_file(self, value):
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if not value:
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return value
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limit_mb = 50
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if value.size > limit_mb * 1024 * 1024:
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raise serializers.ValidationError(f"文件大小不能超过 {limit_mb}MB")
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return value
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class ProjectSerializer(serializers.ModelSerializer):
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files = ProjectFileSerializer(many=True, read_only=True)
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contestant_info = serializers.SerializerMethodField()
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display_cover_image = serializers.SerializerMethodField()
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class Meta:
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model = Project
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fields = ['id', 'competition', 'contestant', 'title', 'description', 'team_info',
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'cover_image', 'cover_image_url', 'display_cover_image',
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'status', 'final_score', 'files', 'contestant_info', 'created_at']
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read_only_fields = ['final_score', 'contestant']
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def get_contestant_info(self, obj):
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return {
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"nickname": obj.contestant.user.nickname,
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"avatar_url": obj.contestant.user.avatar_url
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}
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def get_display_cover_image(self, obj):
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return _media_url(obj.cover_image) or obj.cover_image_url
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class ScoreSerializer(serializers.ModelSerializer):
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judge_name = serializers.CharField(source='judge.user.nickname', read_only=True)
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dimension_name = serializers.CharField(source='dimension.name', read_only=True)
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class Meta:
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model = Score
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fields = ['id', 'project', 'judge', 'dimension', 'score', 'judge_name', 'dimension_name', 'created_at']
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read_only_fields = ['judge']
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class CommentSerializer(serializers.ModelSerializer):
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judge_name = serializers.CharField(source='judge.user.nickname', read_only=True)
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score = serializers.SerializerMethodField()
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class Meta:
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model = Comment
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fields = ['id', 'project', 'judge', 'content', 'judge_name', 'created_at', 'score']
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read_only_fields = ['judge']
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def get_score(self, obj):
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scores = Score.objects.filter(project=obj.project, judge=obj.judge)
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if not scores.exists():
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return None
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total_score = 0
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total_weight = 0
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for score in scores:
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total_score += score.score * score.dimension.weight
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total_weight += score.dimension.weight
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if total_weight > 0:
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return round(total_score / total_weight, 1)
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return None
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