refactor(backend): remove model mappings module

src/api/admin/models/__init__.py

@@ -6,11 +6,9 @@ from fastapi import APIRouter
 
 from .catalog import router as catalog_router
 from .global_models import router as global_models_router
-from .mappings import router as mappings_router
 
 router = APIRouter(prefix="/api/admin/models", tags=["Admin - Model Management"])
 
 # 挂载子路由
 router.include_router(catalog_router)
 router.include_router(global_models_router)
-router.include_router(mappings_router)

src/api/admin/models/mappings.py

@@ -1,303 +0,0 @@
-"""模型映射管理 API
-
-提供模型映射的 CRUD 操作。
-
-模型映射（Mapping）用于将源模型映射到目标模型，例如：
-- 请求 gpt-5.1 → Provider A 映射到 gpt-4
-- 用于处理 Provider 不支持请求模型的情况
-
-映射必须关联到特定的 Provider。
-"""
-
-import uuid
-from datetime import datetime, timezone
-from typing import List, Optional
-
-from fastapi import APIRouter, Depends, HTTPException, Query
-from sqlalchemy.orm import Session, joinedload
-
-from src.core.logger import logger
-from src.database import get_db
-from src.models.api import (
-    ModelMappingCreate,
-    ModelMappingResponse,
-    ModelMappingUpdate,
-)
-from src.models.database import GlobalModel, ModelMapping, Provider, User
-from src.services.cache.invalidation import get_cache_invalidation_service
-
-
-router = APIRouter(prefix="/mappings", tags=["Model Mappings"])
-
-
-def _serialize_mapping(mapping: ModelMapping) -> ModelMappingResponse:
-    target = mapping.target_global_model
-    provider = mapping.provider
-    scope = "provider" if mapping.provider_id else "global"
-    return ModelMappingResponse(
-        id=mapping.id,
-        source_model=mapping.source_model,
-        target_global_model_id=mapping.target_global_model_id,
-        target_global_model_name=target.name if target else None,
-        target_global_model_display_name=target.display_name if target else None,
-        provider_id=mapping.provider_id,
-        provider_name=provider.name if provider else None,
-        scope=scope,
-        mapping_type=mapping.mapping_type,
-        is_active=mapping.is_active,
-        created_at=mapping.created_at,
-        updated_at=mapping.updated_at,
-    )
-
-
-@router.get("", response_model=List[ModelMappingResponse])
-async def list_mappings(
-    provider_id: Optional[str] = Query(None, description="按 Provider 筛选"),
-    source_model: Optional[str] = Query(None, description="按源模型名筛选"),
-    target_global_model_id: Optional[str] = Query(None, description="按目标模型筛选"),
-    scope: Optional[str] = Query(None, description="global 或 provider"),
-    mapping_type: Optional[str] = Query(None, description="映射类型: alias 或 mapping"),
-    is_active: Optional[bool] = Query(None, description="按状态筛选"),
-    skip: int = Query(0, ge=0, description="跳过记录数"),
-    limit: int = Query(100, ge=1, le=1000, description="返回记录数"),
-    db: Session = Depends(get_db),
-):
-    """获取模型映射列表"""
-    query = db.query(ModelMapping).options(
-        joinedload(ModelMapping.target_global_model),
-        joinedload(ModelMapping.provider),
-    )
-
-    if provider_id is not None:
-        query = query.filter(ModelMapping.provider_id == provider_id)
-    if scope == "global":
-        query = query.filter(ModelMapping.provider_id.is_(None))
-    elif scope == "provider":
-        query = query.filter(ModelMapping.provider_id.isnot(None))
-    if mapping_type is not None:
-        query = query.filter(ModelMapping.mapping_type == mapping_type)
-    if source_model:
-        query = query.filter(ModelMapping.source_model.ilike(f"%{source_model}%"))
-    if target_global_model_id is not None:
-        query = query.filter(ModelMapping.target_global_model_id == target_global_model_id)
-    if is_active is not None:
-        query = query.filter(ModelMapping.is_active == is_active)
-
-    mappings = query.offset(skip).limit(limit).all()
-    return [_serialize_mapping(mapping) for mapping in mappings]
-
-
-@router.get("/{mapping_id}", response_model=ModelMappingResponse)
-async def get_mapping(
-    mapping_id: str,
-    db: Session = Depends(get_db),
-):
-    """获取单个模型映射"""
-    mapping = (
-        db.query(ModelMapping)
-        .options(
-            joinedload(ModelMapping.target_global_model),
-            joinedload(ModelMapping.provider),
-        )
-        .filter(ModelMapping.id == mapping_id)
-        .first()
-    )
-
-    if not mapping:
-        raise HTTPException(status_code=404, detail=f"映射 {mapping_id} 不存在")
-
-    return _serialize_mapping(mapping)
-
-
-@router.post("", response_model=ModelMappingResponse, status_code=201)
-async def create_mapping(
-    data: ModelMappingCreate,
-    db: Session = Depends(get_db),
-):
-    """创建模型映射"""
-    source_model = data.source_model.strip()
-    if not source_model:
-        raise HTTPException(status_code=400, detail="source_model 不能为空")
-
-    # 验证 mapping_type
-    if data.mapping_type not in ("alias", "mapping"):
-        raise HTTPException(status_code=400, detail="mapping_type 必须是 'alias' 或 'mapping'")
-
-    # 验证目标 GlobalModel 存在
-    target_model = (
-        db.query(GlobalModel)
-        .filter(GlobalModel.id == data.target_global_model_id, GlobalModel.is_active == True)
-        .first()
-    )
-    if not target_model:
-        raise HTTPException(
-            status_code=404, detail=f"目标模型 {data.target_global_model_id} 不存在或未激活"
-        )
-
-    # 验证 Provider 存在
-    provider = None
-    provider_id = data.provider_id
-    if provider_id:
-        provider = db.query(Provider).filter(Provider.id == provider_id).first()
-        if not provider:
-            raise HTTPException(status_code=404, detail=f"Provider {provider_id} 不存在")
-
-    # 检查映射是否已存在（全局或同一 Provider 下不可重复）
-    existing = (
-        db.query(ModelMapping)
-        .filter(
-            ModelMapping.source_model == source_model,
-            ModelMapping.provider_id == provider_id,
-        )
-        .first()
-    )
-    if existing:
-        raise HTTPException(status_code=400, detail="映射已存在")
-
-    # 创建映射
-    mapping = ModelMapping(
-        id=str(uuid.uuid4()),
-        source_model=source_model,
-        target_global_model_id=data.target_global_model_id,
-        provider_id=provider_id,
-        mapping_type=data.mapping_type,
-        is_active=data.is_active,
-        created_at=datetime.now(timezone.utc),
-        updated_at=datetime.now(timezone.utc),
-    )
-
-    db.add(mapping)
-    db.commit()
-    mapping = (
-        db.query(ModelMapping)
-        .options(
-            joinedload(ModelMapping.target_global_model),
-            joinedload(ModelMapping.provider),
-        )
-        .filter(ModelMapping.id == mapping.id)
-        .first()
-    )
-
-    logger.info(f"创建模型映射: {source_model} -> {target_model.name} "
-        f"(Provider: {provider.name if provider else 'global'}, ID: {mapping.id})")
-
-    cache_service = get_cache_invalidation_service()
-    cache_service.on_model_mapping_changed(source_model, provider_id)
-
-    return _serialize_mapping(mapping)
-
-
-@router.patch("/{mapping_id}", response_model=ModelMappingResponse)
-async def update_mapping(
-    mapping_id: str,
-    data: ModelMappingUpdate,
-    db: Session = Depends(get_db),
-):
-    """更新模型映射"""
-    mapping = db.query(ModelMapping).filter(ModelMapping.id == mapping_id).first()
-    if not mapping:
-        raise HTTPException(status_code=404, detail=f"映射 {mapping_id} 不存在")
-
-    update_data = data.model_dump(exclude_unset=True)
-
-    # 更新 Provider
-    if "provider_id" in update_data:
-        new_provider_id = update_data["provider_id"]
-        if new_provider_id:
-            provider = db.query(Provider).filter(Provider.id == new_provider_id).first()
-            if not provider:
-                raise HTTPException(status_code=404, detail=f"Provider {new_provider_id} 不存在")
-        mapping.provider_id = new_provider_id
-
-    # 更新目标模型
-    if "target_global_model_id" in update_data:
-        target_model = (
-            db.query(GlobalModel)
-            .filter(
-                GlobalModel.id == update_data["target_global_model_id"],
-                GlobalModel.is_active == True,
-            )
-            .first()
-        )
-        if not target_model:
-            raise HTTPException(
-                status_code=404,
-                detail=f"目标模型 {update_data['target_global_model_id']} 不存在或未激活",
-            )
-        mapping.target_global_model_id = update_data["target_global_model_id"]
-
-    # 更新源模型名
-    if "source_model" in update_data:
-        new_source = update_data["source_model"].strip()
-        if not new_source:
-            raise HTTPException(status_code=400, detail="source_model 不能为空")
-        mapping.source_model = new_source
-
-    # 检查唯一约束
-    duplicate = (
-        db.query(ModelMapping)
-        .filter(
-            ModelMapping.source_model == mapping.source_model,
-            ModelMapping.provider_id == mapping.provider_id,
-            ModelMapping.id != mapping_id,
-        )
-        .first()
-    )
-    if duplicate:
-        raise HTTPException(status_code=400, detail="映射已存在")
-
-    # 更新映射类型
-    if "mapping_type" in update_data:
-        if update_data["mapping_type"] not in ("alias", "mapping"):
-            raise HTTPException(status_code=400, detail="mapping_type 必须是 'alias' 或 'mapping'")
-        mapping.mapping_type = update_data["mapping_type"]
-
-    # 更新状态
-    if "is_active" in update_data:
-        mapping.is_active = update_data["is_active"]
-
-    mapping.updated_at = datetime.now(timezone.utc)
-    db.commit()
-    db.refresh(mapping)
-
-    logger.info(f"更新模型映射 (ID: {mapping.id})")
-
-    mapping = (
-        db.query(ModelMapping)
-        .options(
-            joinedload(ModelMapping.target_global_model),
-            joinedload(ModelMapping.provider),
-        )
-        .filter(ModelMapping.id == mapping.id)
-        .first()
-    )
-
-    cache_service = get_cache_invalidation_service()
-    cache_service.on_model_mapping_changed(mapping.source_model, mapping.provider_id)
-
-    return _serialize_mapping(mapping)
-
-
-@router.delete("/{mapping_id}", status_code=204)
-async def delete_mapping(
-    mapping_id: str,
-    db: Session = Depends(get_db),
-):
-    """删除模型映射"""
-    mapping = db.query(ModelMapping).filter(ModelMapping.id == mapping_id).first()
-
-    if not mapping:
-        raise HTTPException(status_code=404, detail=f"映射 {mapping_id} 不存在")
-
-    source_model = mapping.source_model
-    provider_id = mapping.provider_id
-
-    logger.info(f"删除模型映射: {source_model} -> {mapping.target_global_model_id} (ID: {mapping.id})")
-
-    db.delete(mapping)
-    db.commit()
-
-    cache_service = get_cache_invalidation_service()
-    cache_service.on_model_mapping_changed(source_model, provider_id)
-
-    return None