docs: CLAUDE.md 更新为 src/ 新结构与 /api/v1；方案文档 P7 完成
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DjangoAdmin Dev
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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> **重构状态**：项目已按《重构方案-v2.md》完成 P1-P7 全部阶段。
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> 后端源码位于 `src/`（core/common/modules/routes），API 统一 `/api/v1` 前缀，
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> 服务层为「入参数据/出参数据 + BizError」范式，全项目 flake8 零告警。
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## Project Overview
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DjangoAdmin Flask+EleVue is a separated frontend-backend admin framework. Backend: Flask + SQLAlchemy + MySQL + Redis. Frontend: Vue 3 + Element Plus + TypeScript + Vite + Pinia. The project is primarily documented and commented in Chinese.
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Each business module follows a strict **View -> Service -> Model** separation:
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- **`application/views/`** — Route controllers (Flask Blueprint). Each file defines routes using `@{module}_blue.route()`, decorated with `@check_permission("sys:module:action")`. Views are thin — they delegate to service functions and return `R.ok()`/`R.failed()` responses. Write operations check `FLASK_DEMO` first to block demo-mode writes.
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- **`application/services/`** — Business logic layer. Contains all query building, data transformation, and orchestration. Functions receive data from `request` object directly (not passed as parameters from views). Private helpers prefixed with `_` (e.g., `_apply_filters`, `_build_page_data`).
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- **`application/models/`** — SQLAlchemy models. All models inherit from `BaseModel` (provides id, create_user, create_time, update_user, update_time, is_delete fields) and `BaseDB` (provides save(), save_all(), delete() methods). Table names use `DB_PREFIX` (default `flask_`) + snake_case class name.
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- **`src/modules/<domain>/<name>/router.py`** — Route controllers (Flask Blueprint). Registered under `/api/v1` prefix (see `src/routes/v1.py`). Each file defines routes decorated with `@check_permission("sys:module:action")`. Routers parse request params, delegate to service functions, and wrap with `R.ok()`/`R.failed()`. Write operations check `FLASK_DEMO` first (via `@check_demo`).
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- **`src/modules/<domain>/<name>/service.py`** — Business logic layer. **服务函数「入参数据/出参数据」**（不直接读 `request`，不返回 R）；业务失败 `raise BizError`；私有辅助函数以 `_` 开头。数据访问委托 repository。
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- **`src/modules/<domain>/<name>/models.py`** — SQLAlchemy models. All models inherit from `BaseModel` + `BaseDB` (in `src/common/`). Table names use `DB_PREFIX` (default `flask_`) + snake_case class name.
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- **`src/modules/<domain>/<name>/repository.py`** — 数据访问层，继承 `BaseRepository`（`src/common/base_repository.py`）。
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### AOP Transaction Management
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The framework uses an AOP-style transaction interceptor (`application/middleware/transaction.py`) registered via `register_transaction(app)`. **Business code never calls commit/rollback directly.**
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The framework uses an AOP-style transaction interceptor (`src/core/middleware.py`) registered via `register_transaction(app)`. **Business code never calls commit/rollback directly.**
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- `before_request`: marks transaction active
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- `after_request`: auto-commits on POST/PUT/DELETE/PATCH only if HTTP 2xx AND `code==0` in response JSON; auto-rollbacks on business failures (`R.failed` returns HTTP 200 but `code=1`)
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### Key Backend Modules
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- **`application/__init__.py`** — App factory (`create_app()`). Initialization order: Flask core -> Redis config -> DB config -> JSON encoder -> CORS -> ProxyFix -> AOP transaction -> register blueprints -> init extensions -> register middleware.
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- **`application/views/__init__.py`** — Auto-discovery blueprint registration. Add module name to `_blueprint_modules` list; the system dynamically imports the module and registers any `Blueprint` instance found in it. No manual `app.register_blueprint()` needed.
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- **`application/middleware/`** — `check_login` (before_request hook, JWT validation with token blacklist, whitelist matching via exact/prefix/wildcard patterns) and `check_permission` (RBAC decorator; superadmin user_id=1 bypasses all checks; internal calls via API key or IP whitelist also bypass).
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- **`application/forms/`** — WTForms validation forms. All inherit `BaseForm` (in `forms/forms.py`) which handles `ArrayField` JSON serialization. Forms are instantiated with `data=json_data` from parsed request body.
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- **`application/constants/`** — Shared constants: `PAGE_SIZE=10`, `DEFAULT_PASSWORD="123456"`, `MESSAGE_OK/FAIL`, `SERIALIZE_EXCLUDE_FIELDS` (is_delete, password, salt excluded from `to_dict()`).
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- **`src/app.py`** — App factory (`create_app()`). Initialization order: Flask core -> Redis config -> DB config -> JSON encoder -> CORS -> ProxyFix -> op_log/transaction -> register `/api/v1` routes -> init extensions -> middleware -> error handlers -> DI injection.
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- **`src/routes/v1.py`** — API v1 路由注册中心。所有业务蓝图挂载到 `/api/v1` 前缀。
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- **`src/core/middleware.py`** — `check_login` (before_request hook, JWT validation with token blacklist, whitelist matching), `check_demo`, `register_transaction` (AOP 事务), `register_operation_log` (操作日志，写入器 DI 注入), `register_error_handlers`.
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- **`src/core/permission.py`** — `check_permission` (RBAC decorator; superadmin user_id=1 bypasses; 权限数据通过 `current_app.extensions['permission_provider']` 注入，见 `src/app.py` `_inject_dependencies`).
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- **`src/core/exceptions.py`** — `BizError` 业务异常（业务层 `raise BizError` 统一转 `R.failed`）。
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- **`src/common/forms/`** — WTForms 验证表单。继承 `BaseForm`（含 `ArrayField` JSON 序列化）。
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- **`src/common/constants/`** — 共享常量：`PAGE_SIZE=10`, `DEFAULT_PASSWORD="123456"`, `MESSAGE_OK/FAIL`, `SERIALIZE_EXCLUDE_FIELDS`.
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- **`config/`** — Split into `base.py` (Flask host/port/debug/paths), `database.py` (SQLAlchemy URI, SSL options), `redis.py` (Redis URL), `auth.py` (JWT salt, permission toggle, login whitelist, internal API key). All read from `.env` via python-dotenv. `config/__init__.py` loads `.env` before any sub-module imports.
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- **`extensions/`** — Flask extension initialization: SQLAlchemy (`db`), Redis, APScheduler. All initialized via `register_extends(app)`.
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- **`utils/`** — `R` (standardized JSON response: `{code, data, msg, ok}` where code=0 is success, code=1 is failure), `jwt` (JWT token handling with blacklist), `model_utils` (models_to_list, model_to_dict, format_datetime), `request` (parse_request_body, parse_id_list), `security` (get_user_id, get_username from JWT), `case_converter` (camelCase <-> snake_case for dict keys, recursive), `regular` (WTForms error extraction), `password` (bcrypt-based encrypt/verify — imported as `from utils import password` then used as `bcrypt.verify_password()` etc.), `captcha`, `file`, `content` (rich text + file URL handling), `redis_client`, `ip`, `user_agent`, `formatter`, `json`.
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- **`src/extensions.py`** — Flask extension registration orchestration (`register_extends(app)`). 实例定义在 `src/core/`（database/redis_client/mail/scheduler）。
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- **`src/core/`** — `response`（R 统一响应）、`jwt`、`password`（bcrypt）、`security`（get_user_id/get_username）、`redis_client`。
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- **`src/common/utils/`** — `model_utils`（models_to_list/model_to_dict）、`request`（parse_request_body/parse_id_list）、`case_converter`（camelCase <-> snake_case）、`regular`（WTForms 错误提取）、`captcha`、`file`、`rich_text`、`ip`、`user_agent`、`formatter`、`json`、`ip2region`.
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### Frontend Structure (ui/src/)
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### Adding a New Module
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1. Create model in `application/models/{module}.py` inheriting `BaseModel` + `BaseDB`
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2. Create service in `application/services/{module}.py` with business logic
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3. Create view in `application/views/{module}.py` with routes and permission decorators
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4. Add module name string to `_blueprint_modules` list in `application/views/__init__.py`
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5. Create form in `application/forms/{module}.py` inheriting `BaseForm` if input validation needed
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6. Add frontend API in `ui/src/api/{module}/`, views in `ui/src/views/{module}/`
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1. Create model in `src/modules/<domain>/<name>/models.py` inheriting `BaseModel` + `BaseDB`
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2. Create service in `src/modules/<domain>/<name>/service.py`（入参数据/出参数据 + raise BizError）
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3. Create repository in `src/modules/<domain>/<name>/repository.py` inheriting `BaseRepository`
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4. Create router in `src/modules/<domain>/<name>/router.py` with routes and permission decorators
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5. Create schema in `src/modules/<domain>/<name>/schema.py` inheriting `BaseForm` if input validation needed
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6. Add the blueprint to `BLUEPRINTS` list in `src/routes/v1.py`
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7. Add frontend API in `ui/src/api/{module}/`, views in `ui/src/views/{module}/`（API 前缀 /api/v1）
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## Environment Configuration
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