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backend/app/api/endpoints/sources.py

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+# app/api/endpoints/sources.py
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+from typing import List
+
+from app.database import get_db
+from app.schemas.schemas import (
+    InfoSourceCreate, InfoSourceUpdate, InfoSourceResponse, PaginatedResponse
+)
+from app.crud import crud_source
+
+router = APIRouter()
+
+
+@router.post("/", response_model=InfoSourceResponse, status_code=status.HTTP_201_CREATED)
+async def create_info_source(source_in: InfoSourceCreate, db: Session = Depends(get_db)):
+    """新建一个信息源"""
+    return crud_source.create(db=db, obj_in=source_in)
+
+
+@router.get("/", response_model=PaginatedResponse[InfoSourceResponse])
+async def get_all_sources(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+    """获取所有信息源列表（加入了分页参数）"""
+    sources = crud_source.get_multi(db=db, skip=skip, limit=limit)
+    return {"total": len(sources), "data": sources}
+
+
+@router.get("/{source_id}", response_model=InfoSourceResponse)
+async def get_info_source(source_id: int, db: Session = Depends(get_db)):
+    """获取单个信息源详情"""
+    source = crud_source.get(db=db, source_id=source_id)
+    if not source:
+        raise HTTPException(status_code=404, detail="该信息源不存在")
+    return source
+
+
+@router.patch("/{source_id}", response_model=InfoSourceResponse)
+async def update_info_source(source_id: int, source_in: InfoSourceUpdate, db: Session = Depends(get_db)):
+    """更新信息源"""
+    source = crud_source.get(db=db, source_id=source_id)
+    if not source:
+        raise HTTPException(status_code=404, detail="该信息源不存在")
+
+    # 直接把查出来的数据库对象和前端传来的 Pydantic 对象丢给 CRUD 处理
+    return crud_source.update(db=db, db_obj=source, obj_in=source_in)