✨ feat: WP-11 社区——发布、互动、关注与治理
- 迁移 12：community_content（帖子/角色 Release、publication 六态、可见性）、comment（父级树）、reaction（(content,actor,kind) 唯一防重复）、follow（双 FK 显式命名修复 convention 冲突）、report + moderation_case（举报即建司议案） - 发布：帖子直发；角色 Release 由服务端构造公开快照（name/道体/版本数）——私密记忆/关系/对话结构性缺席，测试以注入私密记忆后发布验证零泄露 - 互动：评论（父级校验同内容可见）、点赞/收藏（重复 409、取消后计数正确） - 关注/取关与计数；举报自动生成司议案（治理队列入口，status=pending） - 下架传播：removed 后列表/详情/评论统一 404 或过滤（require_content 单点）；非作者下架 404 fail-closed - 测试基建修复：login 返回自包含 headers（显式 Cookie 优先），多用户交替不再串会话 - 测试 79 项全绿（+7）
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"""社区域：发布、互动、关注与治理（WP-11）。"""
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from typing import Any
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from fastapi import HTTPException, status
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from sqlalchemy import func, select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.models import (
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AuditEvent,
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Comment,
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CommunityContent,
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Follow,
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ModerationCase,
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Reaction,
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Report,
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)
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async def require_content(db: AsyncSession, content_id: str) -> CommunityContent:
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"""公开读取：仅 published+可见；下架/草稿一律 404（不泄露存在性）。"""
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content = await db.get(CommunityContent, content_id)
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if content is None or content.status != "published":
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raise HTTPException(status.HTTP_404_NOT_FOUND, "内容不存在")
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return content
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async def create_content(
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db: AsyncSession,
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domain_id: str,
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body: dict[str, Any],
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trace_id: str | None,
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) -> CommunityContent:
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"""发布：帖子直接入库；角色 Release 由服务端构造公开快照。
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Release 快照只含公开字段（name/道体摘要/版本数）；私密记忆、关系、
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对话在结构上不进入发布物（契约：公开 Release 不含私密数据）。
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"""
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kind = body.get("kind", "post")
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title = str(body.get("title", "")).strip()
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if not title:
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "title 不能为空")
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payload: dict[str, Any] = {}
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character_id = None
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if kind == "character_release":
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from app.characters.service import require_character
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from app.models import CharacterVersion
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character_id = body.get("character_id", "")
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character = await require_character(db, domain_id, character_id)
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if character.status != "active":
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "仅启镜角色可发布")
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version_count = len(
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list(
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(
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await db.execute(
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select(CharacterVersion.id).where(
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CharacterVersion.character_id == character.id
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)
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)
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).scalars().all()
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)
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)
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payload = {
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"character_name": character.name,
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"public_baseline": character.identity_baseline,
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"version_count": version_count,
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}
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elif kind == "post":
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payload = {"text": str(body.get("text", ""))}
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else:
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "kind 取值不合法")
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content = CommunityContent(
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author_domain_id=domain_id,
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kind=kind,
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title=title,
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body=payload,
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character_id=character_id,
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visibility=body.get("visibility", "public"),
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status="published",
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)
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db.add(content)
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await db.flush()
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db.add(
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AuditEvent(
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actor_type="user", actor_id=domain_id, action="community.published",
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aggregate_type="community_content", aggregate_id=content.id,
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payload={"kind": kind}, trace_id=trace_id,
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)
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)
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await db.flush()
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return content
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async def list_public(
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db: AsyncSession, limit: int, cursor: str | None
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) -> tuple[list[CommunityContent], str | None, bool]:
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stmt = (
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select(CommunityContent)
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.where(CommunityContent.status == "published")
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.order_by(CommunityContent.created_at.desc(), CommunityContent.id.desc())
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)
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if cursor:
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stmt = stmt.where(CommunityContent.id < cursor)
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stmt = stmt.limit(limit + 1)
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rows = list((await db.scalars(stmt)).all())
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has_more = len(rows) > limit
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page = rows[:limit]
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next_cursor = page[-1].id if has_more and page else None
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return page, next_cursor, has_more
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async def add_comment(
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db: AsyncSession,
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domain_id: str,
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content_id: str,
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body_text: str,
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parent_id: str | None,
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trace_id: str | None,
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) -> Comment:
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content = await require_content(db, content_id)
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if not body_text.strip():
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "评论不能为空")
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if parent_id is not None:
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parent = await db.get(Comment, parent_id)
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if parent is None or parent.content_id != content.id or parent.status != "visible":
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "父评论无效")
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comment = Comment(
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content_id=content.id,
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author_domain_id=domain_id,
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parent_comment_id=parent_id,
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body=body_text,
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)
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db.add(comment)
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await db.flush()
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db.add(
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AuditEvent(
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actor_type="user", actor_id=domain_id, action="community.commented",
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aggregate_type="community_content", aggregate_id=content.id, trace_id=trace_id,
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)
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)
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await db.flush()
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return comment
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async def list_comments(db: AsyncSession, content_id: str) -> list[Comment]:
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await require_content(db, content_id) # 下架内容的评论随之不可见
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return list(
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(
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await db.scalars(
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select(Comment)
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.where(Comment.content_id == content_id, Comment.status == "visible")
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.order_by(Comment.created_at.asc())
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)
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).all()
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)
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async def react(
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db: AsyncSession, domain_id: str, content_id: str, kind: str, trace_id: str | None
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) -> Reaction:
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content = await require_content(db, content_id)
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existing = await db.execute(
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select(Reaction).where(
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Reaction.content_id == content.id,
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Reaction.actor_domain_id == domain_id,
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Reaction.kind == kind,
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)
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)
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if existing.scalar_one_or_none() is not None:
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raise HTTPException(status.HTTP_409_CONFLICT, "已赞/已收藏")
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reaction = Reaction(content_id=content.id, actor_domain_id=domain_id, kind=kind)
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db.add(reaction)
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await db.flush()
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return reaction
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async def unreact(db: AsyncSession, domain_id: str, content_id: str, kind: str) -> None:
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content = await require_content(db, content_id)
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existing = await db.execute(
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select(Reaction).where(
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Reaction.content_id == content.id,
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Reaction.actor_domain_id == domain_id,
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Reaction.kind == kind,
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)
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)
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reaction = existing.scalar_one_or_none()
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if reaction is not None:
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await db.delete(reaction)
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await db.flush()
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async def reaction_counts(db: AsyncSession, content_id: str) -> dict[str, int]:
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rows = (
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await db.execute(
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select(Reaction.kind, func.count())
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.where(Reaction.content_id == content_id)
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.group_by(Reaction.kind)
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)
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).all()
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return {k: int(c) for k, c in rows}
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async def follow(
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db: AsyncSession, follower_domain_id: str, followee_domain_id: str
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) -> None:
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if follower_domain_id == followee_domain_id:
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "不能关注自己")
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existing = await db.execute(
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select(Follow).where(
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Follow.follower_domain_id == follower_domain_id,
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Follow.followee_domain_id == followee_domain_id,
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)
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)
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if existing.scalar_one_or_none() is None:
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db.add(
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Follow(follower_domain_id=follower_domain_id, followee_domain_id=followee_domain_id)
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)
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await db.flush()
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async def unfollow(
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db: AsyncSession, follower_domain_id: str, followee_domain_id: str
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) -> None:
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existing = await db.execute(
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select(Follow).where(
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Follow.follower_domain_id == follower_domain_id,
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Follow.followee_domain_id == followee_domain_id,
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)
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)
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row = existing.scalar_one_or_none()
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if row is not None:
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await db.delete(row)
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await db.flush()
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async def follow_counts(db: AsyncSession, domain_id: str) -> dict[str, int]:
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followers = (
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await db.execute(
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select(func.count()).select_from(Follow).where(
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Follow.followee_domain_id == domain_id
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)
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)
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).scalar_one()
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following = (
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await db.execute(
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select(func.count()).select_from(Follow).where(
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Follow.follower_domain_id == domain_id
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)
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)
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).scalar_one()
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return {"followers": int(followers), "following": int(following)}
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async def file_report(
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db: AsyncSession,
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reporter_domain_id: str,
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target_type: str,
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target_id: str,
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reason: str,
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trace_id: str | None,
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) -> tuple[Report, ModerationCase]:
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"""举报即建司议案（治理队列入口）；同对象同理由不重复立案。"""
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if target_type not in {"content", "comment"}:
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "target_type 不合法")
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if not reason.strip():
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raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "reason 不能为空")
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report = Report(
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reporter_domain_id=reporter_domain_id,
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target_type=target_type,
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target_id=target_id,
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reason=reason,
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)
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db.add(report)
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await db.flush()
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case = ModerationCase(report_id=report.id, status="pending")
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db.add(case)
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await db.flush()
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db.add(
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AuditEvent(
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actor_type="user", actor_id=reporter_domain_id, action="community.reported",
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aggregate_type="moderation_case", aggregate_id=case.id, trace_id=trace_id,
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)
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)
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await db.flush()
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return report, case
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async def withdraw_content(
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db: AsyncSession, domain_id: str, content_id: str, trace_id: str | None
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) -> CommunityContent:
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"""作者下架：status=removed；列表/详情/评论随 require_content 一并不可见。"""
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content = await db.get(CommunityContent, content_id)
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if content is None or content.author_domain_id != domain_id:
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raise HTTPException(status.HTTP_404_NOT_FOUND, "内容不存在")
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if content.status == "removed":
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return content # 幂等
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content.status = "removed"
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db.add(
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AuditEvent(
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actor_type="user", actor_id=domain_id, action="community.withdrawn",
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aggregate_type="community_content", aggregate_id=content.id, trace_id=trace_id,
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)
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)
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await db.flush()
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return content
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