feat(purchase): 新增采购申请模块后端（模型+Service+API路由）
This commit is contained in:
@ -126,6 +126,17 @@ def create_app():
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except ImportError as e:
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print(f"❌ 错误: Scrap 模块导入失败: {e}")
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# -----------------------------------------------------
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# 2.8 注册采购管理模块
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# -----------------------------------------------------
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try:
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from app.api.v1.purchase import purchase_bp
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app.register_blueprint(purchase_bp, url_prefix='/api/v1/purchase')
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app.register_blueprint(purchase_bp, url_prefix='/api/purchase', name='purchase_legacy')
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print("✅ Purchase 模块注册成功")
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except ImportError as e:
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print(f"❌ 错误: Purchase 模块导入失败: {e}")
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# -----------------------------------------------------
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# 2.7 注册 BOM 模块
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# -----------------------------------------------------
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202
inventory-backend/app/api/v1/purchase.py
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202
inventory-backend/app/api/v1/purchase.py
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@ -0,0 +1,202 @@
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import traceback
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from flask import Blueprint, request, jsonify, current_app
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from flask_jwt_extended import jwt_required, get_jwt_identity
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from app.services.purchase_service import PurchaseService
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from app.utils.decorators import permission_required
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purchase_bp = Blueprint('purchase', __name__, url_prefix='/api/v1/purchase')
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def get_current_user_id():
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"""获取当前登录用户ID"""
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identity = get_jwt_identity()
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return identity
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def get_current_user_role():
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"""获取当前用户角色"""
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from flask_jwt_extended import get_jwt
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claims = get_jwt()
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return claims.get('role')
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# --------------------------------------------------------
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# 1. 采购申请列表
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# GET /api/v1/purchase
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# --------------------------------------------------------
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@purchase_bp.route('', methods=['GET'])
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@jwt_required()
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def get_purchase_list():
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"""获取采购申请列表"""
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try:
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page = int(request.args.get('page', 1))
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per_page = int(request.args.get('limit', 20))
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status = request.args.get('status')
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status = int(status) if status is not None else None
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user_id = get_current_user_id()
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role = get_current_user_role()
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# 普通用户（SUPERVISOR 和 SUPER_ADMIN 除外）只看自己提交的
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is_admin = role in ('SUPERVISOR', 'SUPER_ADMIN')
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result = PurchaseService.get_purchase_list(
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page=page,
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per_page=per_page,
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requester_id=None if is_admin else user_id,
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status=status
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)
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return jsonify({'code': 200, 'msg': '获取成功', 'data': result})
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except Exception as e:
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traceback.print_exc()
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return jsonify({'code': 500, 'msg': f'获取失败: {str(e)}'}), 500
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# --------------------------------------------------------
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# 2. 创建采购申请
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# POST /api/v1/purchase
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# --------------------------------------------------------
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@purchase_bp.route('', methods=['POST'])
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@jwt_required()
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def create_purchase_request():
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"""创建采购申请"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({'code': 400, 'msg': '无有效数据'}), 400
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user_id = get_current_user_id()
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# 必填校验
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required = ['name', 'quantity', 'purchase_date', 'approver_id']
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for field in required:
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if field not in data or str(data.get(field, '')).strip() == '':
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return jsonify({'code': 400, 'msg': f'缺少必填字段: {field}'}), 400
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purchase = PurchaseService.create_purchase_request(data, requester_id=user_id)
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return jsonify({
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'code': 200,
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'msg': '创建成功',
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'data': purchase.to_dict()
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}), 200
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except ValueError as e:
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return jsonify({'code': 400, 'msg': str(e)}), 400
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except Exception as e:
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traceback.print_exc()
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return jsonify({'code': 500, 'msg': f'服务器内部错误: {str(e)}'}), 500
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# --------------------------------------------------------
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# 3. 获取采购申请详情
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# GET /api/v1/purchase/<id>
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# --------------------------------------------------------
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@purchase_bp.route('/<int:purchase_id>', methods=['GET'])
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@jwt_required()
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def get_purchase_detail(purchase_id):
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"""获取采购申请详情"""
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try:
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purchase = PurchaseService.get_purchase_by_id(purchase_id)
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if not purchase:
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return jsonify({'code': 404, 'msg': '采购申请不存在'}), 404
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# 普通用户只能看自己的
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user_id = get_current_user_id()
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role = get_current_user_role()
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is_admin = role in ('SUPERVISOR', 'SUPER_ADMIN')
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if not is_admin and purchase['requester_id'] != user_id:
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return jsonify({'code': 403, 'msg': '无权查看此申请'}), 403
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return jsonify({'code': 200, 'msg': '获取成功', 'data': purchase}), 200
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except Exception as e:
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return jsonify({'code': 500, 'msg': str(e)}), 500
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# --------------------------------------------------------
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# 4. 审批采购申请
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# PATCH /api/v1/purchase/<id>/approve
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# --------------------------------------------------------
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@purchase_bp.route('/<int:purchase_id>/approve', methods=['PATCH'])
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@jwt_required()
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def approve_purchase_request(purchase_id):
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"""审批采购申请"""
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try:
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user_id = get_current_user_id()
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role = get_current_user_role()
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if role not in ('SUPERVISOR', 'SUPER_ADMIN'):
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return jsonify({'code': 403, 'msg': '只有主管或超级管理员可以审批'}), 403
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data = request.get_json() or {}
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action = data.get('action', 'approve')
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reject_reason = data.get('reject_reason')
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if action not in ('approve', 'reject'):
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return jsonify({'code': 400, 'msg': '无效的审批操作'}), 400
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if action == 'reject' and not reject_reason:
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return jsonify({'code': 400, 'msg': '驳回时必须提供原因'}), 400
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purchase = PurchaseService.approve_purchase_request(
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purchase_id=purchase_id,
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user_id=user_id,
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action=action,
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reject_reason=reject_reason
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)
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msg = '审批通过' if action == 'approve' else '已驳回'
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return jsonify({'code': 200, 'msg': msg, 'data': purchase.to_dict()}), 200
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except ValueError as e:
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return jsonify({'code': 400, 'msg': str(e)}), 400
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except Exception as e:
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traceback.print_exc()
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return jsonify({'code': 500, 'msg': f'服务器内部错误: {str(e)}'}), 500
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# --------------------------------------------------------
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# 5. 获取可选审批人列表
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# GET /api/v1/purchase/approvers
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# --------------------------------------------------------
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@purchase_bp.route('/approvers', methods=['GET'])
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@jwt_required()
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def get_purchase_approvers():
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"""获取可选审批人列表（主管+超管）"""
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try:
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from app.models.system import SysUser
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users = SysUser.query.filter(
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SysUser.role.in_(['SUPER_ADMIN', 'SUPERVISOR']),
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SysUser.status == 'active'
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).all()
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return jsonify({
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'code': 200,
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'msg': '获取成功',
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'data': [
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{'id': u.id, 'username': u.username, 'email': u.email or '', 'role': u.role}
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for u in users
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]
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}), 200
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except Exception as e:
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return jsonify({'code': 500, 'msg': str(e)}), 500
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# --------------------------------------------------------
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# 6. 根据名称/规格自动补全
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# GET /api/v1/purchase/auto-fill?keyword=xxx
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# --------------------------------------------------------
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@purchase_bp.route('/auto-fill', methods=['GET'])
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@jwt_required()
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def auto_fill_purchase():
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"""根据名称或规格自动补全另一个字段"""
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try:
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keyword = request.args.get('keyword', '').strip()
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if not keyword:
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return jsonify({'code': 200, 'msg': 'ok', 'data': None}), 200
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result = PurchaseService.auto_fill_from_material(keyword)
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return jsonify({'code': 200, 'msg': 'ok', 'data': result}), 200
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except Exception as e:
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return jsonify({'code': 500, 'msg': str(e)}), 500
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86
inventory-backend/app/models/purchase.py
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86
inventory-backend/app/models/purchase.py
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@ -0,0 +1,86 @@
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import json
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from app.extensions import db, beijing_time
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from datetime import datetime
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class PurchaseRequest(db.Model):
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"""
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采购申请表
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"""
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__tablename__ = 'purchase_request'
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id = db.Column(db.Integer, primary_key=True)
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request_no = db.Column(db.String(100), unique=True, nullable=False, index=True)
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name = db.Column(db.String(255), nullable=False, comment='采购名称')
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spec_model = db.Column(db.String(255), comment='规格型号')
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quantity = db.Column(db.Numeric(19, 4), nullable=False, comment='采购数量')
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purchase_date = db.Column(db.Date, nullable=False, comment='采购时间')
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supplier_link = db.Column(db.String(500), comment='商家地址链接')
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remark = db.Column(db.Text, comment='备注信息')
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images = db.Column(db.Text, comment='图片列表JSON')
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unit_price = db.Column(db.Numeric(19, 4), default=0, comment='单价')
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total_price = db.Column(db.Numeric(19, 4), default=0, comment='总价')
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status = db.Column(db.Integer, default=0, nullable=False)
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requester_id = db.Column(db.Integer, nullable=False, index=True)
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approver_id = db.Column(db.Integer, index=True)
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approved_at = db.Column(db.DateTime)
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reject_reason = db.Column(db.Text)
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created_at = db.Column(db.DateTime, default=beijing_time, nullable=False)
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updated_at = db.Column(db.DateTime, default=beijing_time, onupdate=beijing_time, nullable=False)
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def _safe_parse_json(self, value):
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if value is None:
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return []
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if isinstance(value, (list, dict)):
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return value
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if isinstance(value, str):
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val = value.strip()
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if not val:
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return []
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try:
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parsed = json.loads(val)
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return parsed if isinstance(parsed, list) else []
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except Exception:
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return []
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return []
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def get_images(self):
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return self._safe_parse_json(self.images)
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def set_images(self, image_list):
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self.images = json.dumps(image_list, ensure_ascii=False) if image_list else '[]'
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def _get_user_name(self, user_id):
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if not user_id:
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return ""
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from app.models.system import SysUser
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try:
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user = db.session.get(SysUser, user_id)
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return user.username if user else f"未知用户({user_id})"
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except Exception:
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return f"用户({user_id})"
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def to_dict(self):
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return {
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'id': self.id,
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'request_no': self.request_no,
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'name': self.name,
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'spec_model': self.spec_model or '',
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'quantity': float(self.quantity) if self.quantity else 0,
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'purchase_date': self.purchase_date.strftime('%Y-%m-%d') if self.purchase_date else None,
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'supplier_link': self.supplier_link or '',
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'remark': self.remark or '',
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'images': self.get_images(),
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'unit_price': float(self.unit_price) if self.unit_price else 0,
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'total_price': float(self.total_price) if self.total_price else 0,
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'status': self.status,
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'status_text': ['待审批', '已通过', '已驳回', '已完成'][self.status] if self.status in [0, 1, 2, 3] else '未知',
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'requester_id': self.requester_id,
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'requester_name': self._get_user_name(self.requester_id),
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'approver_id': self.approver_id,
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'approver_name': self._get_user_name(self.approver_id) if self.approver_id else None,
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'approved_at': self.approved_at.strftime('%Y-%m-%d %H:%M:%S') if self.approved_at else None,
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'reject_reason': self.reject_reason or '',
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'created_at': self.created_at.strftime('%Y-%m-%d %H:%M:%S') if self.created_at else None,
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'updated_at': self.updated_at.strftime('%Y-%m-%d %H:%M:%S') if self.updated_at else None,
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}
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231
inventory-backend/app/services/purchase_service.py
Normal file
231
inventory-backend/app/services/purchase_service.py
Normal file
@ -0,0 +1,231 @@
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import json
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from datetime import datetime, timezone, timedelta, date
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from sqlalchemy import func
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from app.extensions import db
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from app.models.purchase import PurchaseRequest
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from app.models.base import MaterialBase
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class PurchaseService:
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@staticmethod
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def generate_request_no():
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"""生成采购单号: PUR-yyyyMMdd-HHmm-当日流水(4位)"""
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beijing_tz = timezone(timedelta(hours=8))
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now = datetime.now(beijing_tz)
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date_str = now.strftime('%Y%m%d')
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time_str = now.strftime('%H%M')
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prefix = f"PUR-{date_str}-{time_str}-"
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existing_count = db.session.query(func.count(func.distinct(PurchaseRequest.request_no))) \
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.filter(PurchaseRequest.request_no.like(f"{prefix}%")).scalar()
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return f"{prefix}{(existing_count + 1):04d}"
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@staticmethod
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def auto_fill_from_material(keyword: str):
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"""
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根据 name 或 spec_model 自动补全另一个字段
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keyword: 用户输入的名称或规格
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返回: {'name': ..., 'spec_model': ...} 或 None
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"""
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if not keyword:
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return None
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material = MaterialBase.query.filter(
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(MaterialBase.name.ilike(f'%{keyword}%')) |
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(MaterialBase.spec_model.ilike(f'%{keyword}%'))
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).first()
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if material:
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return {
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'name': material.name,
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'spec_model': material.spec_model or ''
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}
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return None
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@staticmethod
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def create_purchase_request(data: dict, requester_id: int):
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"""
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创建采购申请
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data 包含: name, spec_model, quantity, purchase_date, supplier_link, remark, images,
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unit_price, total_price, approver_id
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"""
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request_no = PurchaseService.generate_request_no()
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purchase_date = data.get('purchase_date')
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if isinstance(purchase_date, str):
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purchase_date = datetime.strptime(purchase_date, '%Y-%m-%d').date()
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elif isinstance(purchase_date, datetime):
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purchase_date = purchase_date.date()
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purchase = PurchaseRequest(
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request_no=request_no,
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name=data['name'],
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spec_model=data.get('spec_model', ''),
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quantity=float(data['quantity']),
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purchase_date=purchase_date,
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supplier_link=data.get('supplier_link', ''),
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remark=data.get('remark', ''),
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images=json.dumps(data.get('images', []), ensure_ascii=False) if data.get('images') else '[]',
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unit_price=float(data.get('unit_price', 0) or 0),
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total_price=float(data.get('total_price', 0) or 0),
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requester_id=requester_id,
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approver_id=data.get('approver_id'),
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status=0
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)
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db.session.add(purchase)
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db.session.commit()
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# 发送邮件给审批人
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PurchaseService._notify_new_request(purchase)
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return purchase
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@staticmethod
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def approve_purchase_request(purchase_id: int, user_id: int, action: str, reject_reason: str = None):
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"""
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审批采购申请
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action: 'approve' 或 'reject'
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"""
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purchase = db.session.get(PurchaseRequest, purchase_id)
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if not purchase:
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raise ValueError("采购申请不存在")
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if purchase.status != 0:
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raise ValueError("当前状态不允许审批")
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beijing_tz = timezone(timedelta(hours=8))
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now = datetime.now(beijing_tz)
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if action == 'approve':
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purchase.status = 1
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purchase.approver_id = user_id
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purchase.approved_at = now
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db.session.commit()
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PurchaseService._notify_approved(purchase)
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elif action == 'reject':
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purchase.status = 2
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purchase.approver_id = user_id
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purchase.approved_at = now
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purchase.reject_reason = reject_reason or ''
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db.session.commit()
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PurchaseService._notify_rejected(purchase)
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else:
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||||
raise ValueError("无效的审批操作")
|
||||
|
||||
return purchase
|
||||
|
||||
@staticmethod
|
||||
def get_purchase_list(page=1, per_page=20, requester_id=None, status=None):
|
||||
"""获取采购申请列表，普通用户只看自己的，主管/超管看全部"""
|
||||
query = PurchaseRequest.query
|
||||
|
||||
if requester_id is not None:
|
||||
query = query.filter(PurchaseRequest.requester_id == requester_id)
|
||||
|
||||
if status is not None:
|
||||
query = query.filter(PurchaseRequest.status == status)
|
||||
|
||||
query = query.order_by(PurchaseRequest.created_at.desc())
|
||||
pagination = query.paginate(page=page, per_page=per_page, error_out=False)
|
||||
|
||||
return {
|
||||
'items': [p.to_dict() for p in pagination.items],
|
||||
'total': pagination.total,
|
||||
'pages': pagination.pages,
|
||||
'current_page': page
|
||||
}
|
||||
|
||||
@staticmethod
|
||||
def get_purchase_by_id(purchase_id: int):
|
||||
purchase = db.session.get(PurchaseRequest, purchase_id)
|
||||
return purchase.to_dict() if purchase else None
|
||||
|
||||
@staticmethod
|
||||
def _notify_new_request(purchase):
|
||||
"""发送新申请邮件给审批人"""
|
||||
try:
|
||||
from app.utils.email_service import send_email
|
||||
from app.models.system import SysUser
|
||||
|
||||
if not purchase.approver_id:
|
||||
return
|
||||
|
||||
approver = db.session.get(SysUser, purchase.approver_id)
|
||||
if not approver or not approver.email:
|
||||
return
|
||||
|
||||
subject = f"【待审批】采购申请单 {purchase.request_no}"
|
||||
content = f"""您好，
|
||||
|
||||
您有一笔新的采购申请待审批：
|
||||
|
||||
申请单号：{purchase.request_no}
|
||||
采购物品：{purchase.name}
|
||||
规格型号：{purchase.spec_model or '-'}
|
||||
采购数量：{float(purchase.quantity)}
|
||||
申请时间：{purchase.created_at.strftime('%Y-%m-%d %H:%M') if purchase.created_at else '-'}
|
||||
备注说明：{purchase.remark or '无'}
|
||||
|
||||
请登录仓库管理系统进行审批。
|
||||
|
||||
此邮件由系统自动发送，请勿回复。
|
||||
"""
|
||||
send_email(approver.email, subject, content)
|
||||
except Exception as e:
|
||||
try:
|
||||
from flask import current_app
|
||||
current_app.logger.error(f"[Email] 采购申请通知审批人失败: {e}")
|
||||
except Exception:
|
||||
print(f"[Email] 采购申请通知审批人失败: {e}")
|
||||
|
||||
@staticmethod
|
||||
def _notify_approved(purchase):
|
||||
"""审批通过后通知申请人"""
|
||||
try:
|
||||
from app.utils.email_service import send_email
|
||||
from app.models.system import SysUser
|
||||
|
||||
requester = db.session.get(SysUser, purchase.requester_id)
|
||||
if not requester or not requester.email:
|
||||
return
|
||||
|
||||
subject = f"【已通过】采购申请单 {purchase.request_no}"
|
||||
content = f"""{"尊敬的 " + requester.username + "，您好" if requester.username else "您好"}，
|
||||
|
||||
您的采购申请单 {purchase.request_no}（{purchase.name}）已审批通过，现已交给库管。
|
||||
|
||||
待库管完成入库后，您可在系统中查询采购记录。
|
||||
|
||||
此邮件由系统自动发送，请勿回复。
|
||||
"""
|
||||
send_email(requester.email, subject, content)
|
||||
except Exception as e:
|
||||
try:
|
||||
from flask import current_app
|
||||
current_app.logger.error(f"[Email] 采购申请通过通知申请人失败: {e}")
|
||||
except Exception:
|
||||
print(f"[Email] 采购申请通过通知申请人失败: {e}")
|
||||
|
||||
@staticmethod
|
||||
def _notify_rejected(purchase):
|
||||
"""审批驳回后通知申请人"""
|
||||
try:
|
||||
from app.utils.email_service import send_email
|
||||
from app.models.system import SysUser
|
||||
|
||||
requester = db.session.get(SysUser, purchase.requester_id)
|
||||
if not requester or not requester.email:
|
||||
return
|
||||
|
||||
subject = f"【已驳回】采购申请单 {purchase.request_no}"
|
||||
content = f"""{"尊敬的 " + requester.username + "，您好" if requester.username else "您好"}，
|
||||
|
||||
您的采购申请单 {purchase.request_no}（{purchase.name}）已被驳回。
|
||||
|
||||
驳回原因：{purchase.reject_reason or '未说明'}
|
||||
|
||||
请登录仓库管理系统查看详情。
|
||||
|
||||
此邮件由系统自动发送，请勿回复。
|
||||
"""
|
||||
send_email(requester.email, subject, content)
|
||||
except Exception as e:
|
||||
print(f"[Email] 采购申请驳回通知失败: {e}")
|
||||
Reference in New Issue
Block a user