feat: 为 GlobalModel 添加关联提供商查询 API

添加新的 API 端点 GET /api/admin/models/global/{global_model_id}/providers，用于获取 GlobalModel 的所有关联提供商（包括非活跃的）。

- 后端：实现 AdminGetGlobalModelProvidersAdapter 适配器
- 前端：使用新 API 替换原有的 ModelCatalog 获取方式
- 数据库：改进初始化时的错误提示和连接异常处理

frontend/src/api/endpoints/global-models.ts

@@ -4,7 +4,8 @@ import type {
   GlobalModelUpdate,
   GlobalModelResponse,
   GlobalModelWithStats,
-  GlobalModelListResponse
+  GlobalModelListResponse,
+  ModelCatalogProviderDetail,
 } from './types'
 
 /**
@@ -83,3 +84,16 @@ export async function batchAssignToProviders(
   )
   return response.data
 }
+
+/**
+ * 获取 GlobalModel 的所有关联提供商（包括非活跃的）
+ */
+export async function getGlobalModelProviders(globalModelId: string): Promise<{
+  providers: ModelCatalogProviderDetail[]
+  total: number
+}> {
+  const response = await client.get(
+    `/api/admin/models/global/${globalModelId}/providers`
+  )
+  return response.data
+}

frontend/src/api/global-models.ts

@@ -20,4 +20,5 @@ export {
   updateGlobalModel,
   deleteGlobalModel,
   batchAssignToProviders,
+  getGlobalModelProviders,
 } from './endpoints/global-models'

frontend/src/views/admin/ModelManagement.vue

@@ -737,6 +737,7 @@ import {
   updateGlobalModel,
   deleteGlobalModel,
   batchAssignToProviders,
+  getGlobalModelProviders,
   type GlobalModelResponse,
 } from '@/api/global-models'
 import { log } from '@/utils/logger'
@@ -1080,18 +1081,11 @@ async function selectModel(model: GlobalModelResponse) {
 async function loadModelProviders(_globalModelId: string) {
   loadingModelProviders.value = true
   try {
-    // 使用 ModelCatalog API 获取详细的关联提供商信息
-    const { getModelCatalog } = await import('@/api/endpoints')
-    const catalogResponse = await getModelCatalog()
+    // 使用新的 API 获取所有关联提供商（包括非活跃的）
+    const response = await getGlobalModelProviders(_globalModelId)
 
-    // 查找当前 GlobalModel 对应的 catalog item
-    const catalogItem = catalogResponse.models.find(
-      m => m.global_model_name === selectedModel.value?.name
-    )
-
-    if (catalogItem) {
-      // 转换为展示格式，包含完整的模型实现信息
-      selectedModelProviders.value = catalogItem.providers.map(p => ({
+    // 转换为展示格式
+    selectedModelProviders.value = response.providers.map(p => ({
       id: p.provider_id,
       model_id: p.model_id,
       display_name: p.provider_display_name || p.provider_name,
@@ -1113,9 +1107,6 @@ async function loadModelProviders(_globalModelId: string) {
       supports_function_calling: p.supports_function_calling,
       supports_streaming: p.supports_streaming
     }))
-    } else {
-      selectedModelProviders.value = []
-    }
   } catch (err: any) {
     log.error('加载关联提供商失败:', err)
     showError(parseApiError(err, '加载关联提供商失败'), '错误')

src/api/admin/models/global_models.py

@@ -5,7 +5,7 @@ GlobalModel Admin API
 """
 
 from dataclasses import dataclass
-from typing import List, Optional
+from typing import Optional
 
 from fastapi import APIRouter, Depends, Query, Request
 from sqlalchemy.orm import Session
@@ -19,9 +19,11 @@ from src.models.pydantic_models import (
     BatchAssignToProvidersResponse,
     GlobalModelCreate,
     GlobalModelListResponse,
+    GlobalModelProvidersResponse,
     GlobalModelResponse,
     GlobalModelUpdate,
     GlobalModelWithStats,
+    ModelCatalogProviderDetail,
 )
 from src.services.model.global_model import GlobalModelService
 
@@ -108,6 +110,17 @@ async def batch_assign_to_providers(
     return await pipeline.run(adapter=adapter, http_request=request, db=db, mode=adapter.mode)
 
 
+@router.get("/{global_model_id}/providers", response_model=GlobalModelProvidersResponse)
+async def get_global_model_providers(
+    request: Request,
+    global_model_id: str,
+    db: Session = Depends(get_db),
+) -> GlobalModelProvidersResponse:
+    """获取 GlobalModel 的所有关联提供商（包括非活跃的）"""
+    adapter = AdminGetGlobalModelProvidersAdapter(global_model_id=global_model_id)
+    return await pipeline.run(adapter=adapter, http_request=request, db=db, mode=adapter.mode)
+
+
 # ========== Adapters ==========
 
 
@@ -275,3 +288,61 @@ class AdminBatchAssignToProvidersAdapter(AdminApiAdapter):
         logger.info(f"批量为 Provider 添加 GlobalModel: global_model_id={self.global_model_id} success={len(result['success'])} errors={len(result['errors'])}")
 
         return BatchAssignToProvidersResponse(**result)
+
+
+@dataclass
+class AdminGetGlobalModelProvidersAdapter(AdminApiAdapter):
+    """获取 GlobalModel 的所有关联提供商（包括非活跃的）"""
+
+    global_model_id: str
+
+    async def handle(self, context):  # type: ignore[override]
+        from sqlalchemy.orm import joinedload
+
+        from src.models.database import Model
+
+        global_model = GlobalModelService.get_global_model(context.db, self.global_model_id)
+
+        # 获取所有关联的 Model（包括非活跃的）
+        models = (
+            context.db.query(Model)
+            .options(joinedload(Model.provider), joinedload(Model.global_model))
+            .filter(Model.global_model_id == global_model.id)
+            .all()
+        )
+
+        provider_entries = []
+        for model in models:
+            provider = model.provider
+            if not provider:
+                continue
+
+            effective_tiered = model.get_effective_tiered_pricing()
+            tier_count = len(effective_tiered.get("tiers", [])) if effective_tiered else 1
+
+            provider_entries.append(
+                ModelCatalogProviderDetail(
+                    provider_id=provider.id,
+                    provider_name=provider.name,
+                    provider_display_name=provider.display_name,
+                    model_id=model.id,
+                    target_model=model.provider_model_name,
+                    input_price_per_1m=model.get_effective_input_price(),
+                    output_price_per_1m=model.get_effective_output_price(),
+                    cache_creation_price_per_1m=model.get_effective_cache_creation_price(),
+                    cache_read_price_per_1m=model.get_effective_cache_read_price(),
+                    cache_1h_creation_price_per_1m=model.get_effective_1h_cache_creation_price(),
+                    price_per_request=model.get_effective_price_per_request(),
+                    effective_tiered_pricing=effective_tiered,
+                    tier_count=tier_count,
+                    supports_vision=model.get_effective_supports_vision(),
+                    supports_function_calling=model.get_effective_supports_function_calling(),
+                    supports_streaming=model.get_effective_supports_streaming(),
+                    is_active=bool(model.is_active),
+                )
+            )
+
+        return GlobalModelProvidersResponse(
+            providers=provider_entries,
+            total=len(provider_entries),
+        )

src/database/database.py

@@ -360,6 +360,9 @@ def init_db():
 
     注意：数据库表结构由 Alembic 管理，部署时请运行 ./migrate.sh
     """
+    import sys
+    from sqlalchemy.exc import OperationalError
+
     logger.info("初始化数据库...")
 
     # 确保引擎已创建
@@ -382,6 +385,38 @@ def init_db():
         db.commit()
         logger.info("数据库初始化完成")
 
+    except OperationalError as e:
+        db.rollback()
+        # 提取数据库连接信息用于提示
+        db_url = config.database_url
+        # 隐藏密码，只显示 host:port/database
+        if "@" in db_url:
+            db_info = db_url.split("@")[-1]
+        else:
+            db_info = db_url
+
+        import os
+
+        # 直接打印到 stderr，确保消息显示
+        print("", file=sys.stderr)
+        print("=" * 60, file=sys.stderr)
+        print("数据库连接失败", file=sys.stderr)
+        print("=" * 60, file=sys.stderr)
+        print("", file=sys.stderr)
+        print(f"无法连接到数据库: {db_info}", file=sys.stderr)
+        print("", file=sys.stderr)
+        print("请检查以下事项:", file=sys.stderr)
+        print("  1. PostgreSQL 服务是否正在运行", file=sys.stderr)
+        print("  2. 数据库连接配置是否正确 (DATABASE_URL)", file=sys.stderr)
+        print("  3. 数据库用户名和密码是否正确", file=sys.stderr)
+        print("", file=sys.stderr)
+        print("如果使用 Docker，请先运行:", file=sys.stderr)
+        print("  docker-compose up -d postgres redis", file=sys.stderr)
+        print("", file=sys.stderr)
+        print("=" * 60, file=sys.stderr)
+        # 使用 os._exit 直接退出，避免 uvicorn 捕获并打印堆栈
+        os._exit(1)
+
     except Exception as e:
         logger.error(f"数据库初始化失败: {e}")
         db.rollback()

src/models/pydantic_models.py

@@ -274,6 +274,13 @@ class GlobalModelListResponse(BaseModel):
     total: int
 
 
+class GlobalModelProvidersResponse(BaseModel):
+    """GlobalModel 关联提供商列表响应"""
+
+    providers: List[ModelCatalogProviderDetail]
+    total: int
+
+
 class BatchAssignToProvidersRequest(BaseModel):
     """批量为 Provider 添加 GlobalModel 实现"""