新增 mid_ac_count / hard_ac_count,去重统计中等和困难难度的 AC 题数。 在此之前所有成就对水题和难题一视同仁,这是最缺的一个维度。 增量走 build_ctx 新增的 problem_difficulty,它只在首次 AC 时才查库—— 绝大多数提交都不是首次 AC,无条件预查等于给每次判题白加一条 SQL。 删除 min_ac_code_chars:线上实测 1314 个用户的分布,最小值 8、p5=10, 有道题 8 个字符就能通过,这个指标测的是"谁做过那道水题"而不是 "谁写得简洁",配不出有意义的成就。 自检里写死 min_ac_code_chars 的两处改成按 lte 成就自动发现: _check_registry 不再要求某个具体指标存在,_check_min_metric_absent 改为遍历所有上架的 lte 成就检查其指标。没有 lte 成就时 SKIP, 将来配了自动开始检查。 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
76 lines
3.2 KiB
Python
76 lines
3.2 KiB
Python
from django.db import models
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from account.models import User
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from utils.models import JSONField
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class Rarity(models.TextChoices):
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BRONZE = "bronze", "青铜"
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SILVER = "silver", "白银"
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GOLD = "gold", "黄金"
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PLATINUM = "platinum", "白金"
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class Operator(models.TextChoices):
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GTE = "gte", "大于等于"
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LTE = "lte", "小于等于"
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class Achievement(models.Model):
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name = models.TextField(verbose_name="成就名称")
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description = models.TextField(verbose_name="成就描述")
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# iconify 图标名(如 noto:owl),不是 emoji 字符:
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# 机房的老浏览器缺 emoji 字体会渲染成方块,前端统一渲染成 SVG
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icon = models.TextField(verbose_name="图标")
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rarity = models.TextField(default=Rarity.BRONZE, choices=Rarity.choices, verbose_name="稀有度")
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hidden = models.BooleanField(default=False, db_default=False, verbose_name="是否隐藏")
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metric = models.TextField(verbose_name="指标名")
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operator = models.TextField(default=Operator.GTE, choices=Operator.choices, verbose_name="比较符")
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threshold = models.IntegerField(verbose_name="阈值")
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visible = models.BooleanField(default=True, db_default=True, verbose_name="是否上架")
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unlock_count = models.IntegerField(default=0, db_default=0, verbose_name="已解锁人数")
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order = models.IntegerField(default=0, db_default=0, verbose_name="排序")
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create_time = models.DateTimeField(auto_now_add=True)
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class Meta:
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db_table = "achievement"
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ordering = ("order", "id")
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verbose_name = "成就"
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verbose_name_plural = "成就"
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class UserStat(models.Model):
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"""成就系统唯一的指标源,不复用 UserProfile 的计数器,避免两处口径漂移。
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metrics 为 {指标名: 数值};指标从未产生过有效值时 key 不存在(而非置 0),
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否则极小值型指标(求 min、配 lte 用的那种)会对新用户恒成立。
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"""
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user = models.OneToOneField(User, on_delete=models.CASCADE, related_name="achievement_stat")
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metrics = JSONField(default=dict, db_default=models.Value({}, output_field=models.JSONField()))
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update_time = models.DateTimeField(auto_now=True)
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class Meta:
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db_table = "user_stat"
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class UserAchievement(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="achievements")
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achievement = models.ForeignKey(Achievement, on_delete=models.CASCADE)
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unlock_time = models.DateTimeField(auto_now_add=True)
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# 上线补发的记录:前端不显示具体日期,只显示"已获得"
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backfilled = models.BooleanField(default=False, db_default=False)
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# 是否已向用户弹过奖杯,pending 端点据此查询
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notified = models.BooleanField(default=False, db_default=False)
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class Meta:
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db_table = "user_achievement"
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ordering = ("-unlock_time",)
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constraints = [
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models.UniqueConstraint(fields=["user", "achievement"], name="unique_user_achievement"),
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]
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indexes = [
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models.Index(fields=["user", "-unlock_time"], name="user_achv_time_idx"),
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models.Index(fields=["user", "notified"], name="user_achv_notified_idx"),
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]
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