349 lines
14 KiB
Python
349 lines
14 KiB
Python
from django.db import models
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from shop.models import WeChatUser
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class Competition(models.Model):
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"""
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比赛管理模型
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"""
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STATUS_CHOICES = (
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('draft', '草稿'),
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('published', '已发布'),
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('registration', '报名中'),
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('submission', '作品提交中'),
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('judging', '评审中'),
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('ended', '已结束'),
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)
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PROJECT_VISIBILITY_CHOICES = (
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('public', '公开可见'),
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('contestant', '选手及以上可见'),
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('guest', '嘉宾及评委可见'),
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('judge', '仅评委可见'),
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)
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title = models.CharField(max_length=200, verbose_name="比赛名称")
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description = models.TextField(verbose_name="比赛简介")
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rule_description = models.TextField(verbose_name="规则说明")
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condition_description = models.TextField(verbose_name="参赛条件说明", blank=True)
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cover_image = models.ImageField(upload_to='competitions/covers/', verbose_name="封面图", null=True, blank=True)
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cover_image_url = models.URLField(verbose_name="封面图URL", null=True, blank=True, help_text="优先使用上传的图片")
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start_time = models.DateTimeField(verbose_name="开始时间")
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end_time = models.DateTimeField(verbose_name="结束时间")
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status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='draft', verbose_name="状态")
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project_visibility = models.CharField(max_length=20, choices=PROJECT_VISIBILITY_CHOICES, default='public', verbose_name="项目可见性")
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allow_contestant_grading = models.BooleanField(default=False, verbose_name="允许选手互评")
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SCORE_CALCULATION_CHOICES = (
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('default', '默认加权平均'),
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('custom', '自定义算式'),
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)
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score_calculation_type = models.CharField(max_length=20, choices=SCORE_CALCULATION_CHOICES, default='default', verbose_name="得分计算方式")
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custom_score_formula = models.CharField(max_length=1000, blank=True, verbose_name="自定义得分算式", help_text="如使用自定义算式，将使用此公式计算最终得分。变量格式: dimension_维度ID，如 dimension_1, dimension_2")
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is_active = models.BooleanField(default=True, verbose_name="是否启用")
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created_at = models.DateTimeField(auto_now_add=True, verbose_name="创建时间")
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updated_at = models.DateTimeField(auto_now=True, verbose_name="更新时间")
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def __str__(self):
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return self.title
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class Meta:
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verbose_name = "比赛"
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verbose_name_plural = "比赛管理"
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ordering = ['-created_at']
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class CompetitionEnrollment(models.Model):
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"""
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比赛人员报名/角色分配
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"""
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ROLE_CHOICES = (
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('contestant', '选手'),
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('judge', '评委'),
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('guest', '嘉宾'),
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)
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STATUS_CHOICES = (
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('pending', '待审核'),
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('approved', '已通过'),
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('rejected', '已拒绝'),
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)
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competition = models.ForeignKey(Competition, on_delete=models.CASCADE, related_name='enrollments', verbose_name="所属比赛")
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user = models.ForeignKey(WeChatUser, on_delete=models.CASCADE, related_name='competitions', verbose_name="用户")
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role = models.CharField(max_length=20, choices=ROLE_CHOICES, default='contestant', verbose_name="角色")
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status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='pending', verbose_name="状态")
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created_at = models.DateTimeField(auto_now_add=True, verbose_name="申请时间")
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updated_at = models.DateTimeField(auto_now=True, verbose_name="更新时间")
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class Meta:
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verbose_name = "比赛人员"
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verbose_name_plural = "人员管理"
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unique_together = ('competition', 'user')
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def __str__(self):
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return f"{self.competition.title} - {self.user.nickname} ({self.get_role_display()})"
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class ScoreDimension(models.Model):
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"""
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评分维度配置
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"""
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FORMULA_TYPE_CHOICES = (
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('weight', '权重模式'),
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('formula', '自定义算式'),
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)
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competition = models.ForeignKey(Competition, on_delete=models.CASCADE, related_name='score_dimensions', verbose_name="所属比赛")
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name = models.CharField(max_length=100, verbose_name="维度名称")
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description = models.TextField(verbose_name="维度说明", blank=True)
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weight = models.DecimalField(max_digits=6, decimal_places=4, default=1.0000, verbose_name="权重", help_text="例如 0.3000 表示 30%")
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max_score = models.IntegerField(default=100, verbose_name="满分值")
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formula_type = models.CharField(max_length=20, choices=FORMULA_TYPE_CHOICES, default='weight', verbose_name="算式类型")
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formula = models.CharField(max_length=500, blank=True, verbose_name="自定义算式", help_text="使用维度ID作为变量，如: dimension_1 * 0.3 + dimension_2 * 0.5 + dimension_3 * 0.2")
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is_public = models.BooleanField(default=True, verbose_name="是否公开给评委", help_text="如果关闭，评委端将看不到此评分维度，通常用于AI自动评分")
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is_peer_review = models.BooleanField(default=False, verbose_name="是否用于选手互评", help_text="如果开启，此评分维度仅在选手互评时可见，评委和嘉宾看不到")
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order = models.IntegerField(default=0, verbose_name="排序权重")
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class Meta:
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verbose_name = "评分维度"
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verbose_name_plural = "评分维度配置"
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ordering = ['order']
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def __str__(self):
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return f"{self.competition.title} - {self.name}"
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def get_formula_preview(self):
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"""
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获取算式预览，显示维度名称而非ID
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"""
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if not self.formula or self.formula_type != 'formula':
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return None
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dimension_map = {d.id: d.name for d in self.competition.score_dimensions.all()}
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result = self.formula
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for dim_id, dim_name in dimension_map.items():
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result = result.replace(f'dimension_{dim_id}', f'[{dim_name}]')
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return result
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class Project(models.Model):
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"""
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参赛项目/作品
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"""
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STATUS_CHOICES = (
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('draft', '草稿'),
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('submitted', '已提交'),
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)
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competition = models.ForeignKey(Competition, on_delete=models.CASCADE, related_name='projects', verbose_name="所属比赛")
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contestant = models.ForeignKey(CompetitionEnrollment, on_delete=models.CASCADE, related_name='projects', verbose_name="参赛选手")
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title = models.CharField(max_length=200, verbose_name="项目名称")
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description = models.TextField(verbose_name="项目介绍")
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team_info = models.TextField(verbose_name="团队介绍", blank=True)
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cover_image = models.ImageField(upload_to='competitions/projects/covers/', verbose_name="项目封面", null=True, blank=True)
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cover_image_url = models.URLField(verbose_name="项目封面URL", null=True, blank=True, help_text="优先使用上传的图片")
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status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='draft', verbose_name="状态")
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# 最终得分缓存，避免每次实时计算
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final_score = models.DecimalField(max_digits=10, decimal_places=2, default=0.00, verbose_name="最终得分")
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created_at = models.DateTimeField(auto_now_add=True, verbose_name="创建时间")
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updated_at = models.DateTimeField(auto_now=True, verbose_name="更新时间")
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class Meta:
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verbose_name = "参赛项目"
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verbose_name_plural = "项目管理"
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ordering = ['-final_score', '-created_at']
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def __str__(self):
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return self.title
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def calculate_score(self):
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"""
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计算项目得分
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支持两种模式：
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1. 默认加权平均：每个评委的得分 = sum(维度分数 × 维度权重)，然后所有评委取平均
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2. 自定义算式：使用比赛级别的 custom_score_formula 计算最终得分
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自定义算式变量格式：
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- dimension_X: 第X个维度的平均分（所有评委对该维度的平均分）
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- 也可以在算式中直接使用维度ID
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"""
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scores = self.scores.all()
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if not scores.exists():
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self.final_score = 0
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self.save()
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return 0
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competition = self.competition
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if competition.score_calculation_type == 'custom' and competition.custom_score_formula:
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return self._calculate_custom_score(scores, competition.custom_score_formula)
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return self._calculate_default_score(scores)
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def _calculate_default_score(self, scores):
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"""
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默认加权平均模式
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1. 获取所有评委对该项目的打分
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2. 每个评委的得分 = sum(维度分数 × 维度权重)
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3. 项目最终得分 = 所有评委得分的平均值
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"""
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judges = set(score.judge for score in scores)
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if not judges:
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return 0
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total_weighted_score = 0
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for judge in judges:
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judge_score = 0
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judge_scores = scores.filter(judge=judge)
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for score in judge_scores:
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judge_score += float(score.score) * float(score.dimension.weight)
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total_weighted_score += judge_score
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avg_score = total_weighted_score / len(judges)
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self.final_score = round(avg_score, 2)
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self.save()
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return avg_score
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def _calculate_custom_score(self, scores, formula):
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"""
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自定义算式模式
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使用比赛配置的自定义算式计算得分
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"""
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dimension_scores = {}
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dimensions = self.competition.score_dimensions.all()
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for dimension in dimensions:
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dim_scores = scores.filter(dimension=dimension)
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if dim_scores.exists():
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avg = sum(float(s.score) for s in dim_scores) / dim_scores.count()
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dimension_scores[f'dimension_{dimension.id}'] = avg
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if not dimension_scores:
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self.final_score = 0
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self.save()
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return 0
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try:
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result = eval(formula, {"__builtins__": {}}, dimension_scores)
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final_score = float(result)
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self.final_score = round(final_score, 2)
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self.save()
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return self.final_score
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except Exception as e:
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print(f"算式计算错误: {e}, formula: {formula}, values: {dimension_scores}")
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return self._calculate_default_score(scores)
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def calculate_judge_score(self, judge):
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"""
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计算指定评委对该项目的得分
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用于显示评委个人评分
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"""
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scores = self.scores.filter(judge=judge)
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if not scores.exists():
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return 0
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total = 0
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for score in scores:
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total += float(score.score) * float(score.dimension.weight)
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return round(total, 2)
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class ProjectFile(models.Model):
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"""
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项目附件
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"""
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FILE_TYPE_CHOICES = (
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('ppt', 'PPT演示文稿'),
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('pdf', 'PDF文档'),
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('image', '图片'),
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('video', '视频'),
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('doc', '文档'),
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('other', '其他'),
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)
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project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name='files', verbose_name="所属项目")
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file_type = models.CharField(max_length=20, choices=FILE_TYPE_CHOICES, default='other', verbose_name="文件类型")
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file = models.FileField(upload_to='competitions/projects/files/', verbose_name="文件", null=True, blank=True)
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file_url = models.URLField(verbose_name="文件链接", null=True, blank=True, help_text="视频等大文件建议使用外部链接")
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name = models.CharField(max_length=100, verbose_name="文件名称", blank=True)
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created_at = models.DateTimeField(auto_now_add=True, verbose_name="上传时间")
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class Meta:
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verbose_name = "项目附件"
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verbose_name_plural = "附件管理"
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def __str__(self):
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return self.name or f"{self.get_file_type_display()}"
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class Score(models.Model):
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"""
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评委打分
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"""
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project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name='scores', verbose_name="所属项目")
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judge = models.ForeignKey(CompetitionEnrollment, on_delete=models.CASCADE, related_name='given_scores', verbose_name="评委")
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dimension = models.ForeignKey(ScoreDimension, on_delete=models.CASCADE, verbose_name="评分维度")
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score = models.DecimalField(max_digits=5, decimal_places=1, verbose_name="得分")
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created_at = models.DateTimeField(auto_now_add=True, verbose_name="打分时间")
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updated_at = models.DateTimeField(auto_now=True, verbose_name="更新时间")
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class Meta:
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verbose_name = "评分记录"
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verbose_name_plural = "评分记录"
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unique_together = ('project', 'judge', 'dimension')
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def __str__(self):
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return f"{self.judge.user.nickname} -> {self.project.title}: {self.score}"
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def save(self, *args, **kwargs):
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super().save(*args, **kwargs)
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# 触发重新计算分数
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self.project.calculate_score()
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class Comment(models.Model):
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"""
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评委评语
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"""
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project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name='comments', verbose_name="所属项目")
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judge = models.ForeignKey(CompetitionEnrollment, on_delete=models.CASCADE, related_name='given_comments', verbose_name="评委")
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content = models.TextField(verbose_name="评语内容")
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created_at = models.DateTimeField(auto_now_add=True, verbose_name="评论时间")
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updated_at = models.DateTimeField(auto_now=True, verbose_name="更新时间")
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class Meta:
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verbose_name = "评委评语"
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verbose_name_plural = "评语管理"
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def __str__(self):
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return f"{self.judge.user.nickname} -> {self.project.title}"
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