Python毕业设计 基于Flask+微信小程序的订餐系统设计与实现源码+详细文档+全部资料（高分项目）.zip

# -*- coding: utf-8 -*- from flask import Blueprint, request, jsonify, redirect from decimal import Decimal from sqlalchemy import or_ from common.libs.Helper import ops_render, getCurrentDate, iPagination, getDictFilterField from common.libs.UrlManager import UrlManager from common.libs.food.FoodService import FoodService from common.models.food.FoodCat import FoodCat from common.models.food.Food import Food from common.models.food.FoodStockChangeLog import FoodStockChangeLog from application import app, db route_food = Blueprint('food_page', __name__) @route_food.route("/index") def index(): resp_data = {} req = request.values page = int(req["p"]) if ("p" in req and req["p"]) else 1 query = Food.query # 食品名称或标签查询 if "mix_kw" in req: rule = or_(Food.name.ilike("%{0}%".format(req["mix_kw"])), Food.tags.ilike("%{0}%".format(req["mix_kw"]))) query = query.filter(rule) # 状态查询 if "status" in req and int(req["status"]) > -1: query = query.filter(Food.status == int(req["status"])) # 菜系分类查询 if 'cat_id' in req and int(req['cat_id']) > 0: query = query.filter(Food.cat_id == int(req['cat_id'])) page_params = { "total": query.count(), "page_size": app.config["PAGE_SIZE"], "page": page, "display": app.config["PAGE_DISPLAY"], "url": request.full_path.replace("&p={}".format(page), "") } pages = iPagination(page_params) offset = (page - 1) * app.config["PAGE_SIZE"] list = query.order_by(Food.id.desc()).offset(offset).limit(app.config["PAGE_SIZE"]).all() cat_mapping = getDictFilterField(FoodCat, FoodCat.id, "id", []) resp_data["list"] = list resp_data["pages"] = pages resp_data["search_con"] = req resp_data["status_mapping"] = app.config["STATUS_MAPPING"] resp_data["cat_mapping"] = cat_mapping resp_data["current"] = "index" return ops_render("food/index.html", resp_data) @route_food.route("/info") def info(): resp_data = {} req = request.args id = int(req.get("id", 0)) if id < 1: return redirect(UrlManager.buildUrl("/food/index")) food_info = Food.query.filter_by(id=id).first() if not food_info: return redirect(UrlManager.buildUrl("/food/index")) stock_change_list = FoodStockChangeLog.query.filter(FoodStockChangeLog.food_id == id).order_by( FoodStockChangeLog.id.desc()).all() resp_data["food_info"] = food_info resp_data["stock_change_list"] = stock_change_list resp_data["current"] = "index" return ops_render("food/info.html", resp_data) @route_food.route("/set", methods=["GET", "POST"]) def set(): if request.method == "GET": resp_data = {} req = request.args id = int(req.get("id", 0)) food_info = Food.query.filter_by(id=id).first() if food_info and food_info.status != 1: return redirect(UrlManager.buildUrl("/food/index")) cat_list = FoodCat.query.all() resp_data["food_info"] = food_info resp_data["cat_list"] = cat_list resp_data["current"] = "index" return ops_render("food/set.html", resp_data) resp = {"code": 200, "msg": "操作成功~", "data": {}} req = request.values id = int(req['id']) if 'id' in req and req['id'] else 0 cat_id = int(req['cat_id']) if 'cat_id' in req else 0 name = req['name'] if 'name' in req else '' price = req['price'] if 'price' in req else '' main_image = req['main_image'] if 'main_image' in req else '' summary = req['summary'] if 'summary' in req else '' stock = int(req['stock']) if 'stock' in req else '' tags = req['tags'] if 'tags' in req else '' price = Decimal(price).quantize(Decimal('0.00')) if cat_id < 1: resp['code'] = -1 resp['msg'] = "请选择分类~~" return jsonify(resp) if name is None or len(name) < 1: resp['code'] = -1 resp['msg'] = "请输入符合规范的名称~~" return jsonify(resp) if price <= 0: resp['code'] = -1 resp['msg'] = "请输入符合规范的售卖价格~~" return jsonify(resp) if main_image is None or len(main_image) < 3: resp['code'] = -1 resp['msg'] = "请上传封面图~~" return jsonify(resp) if summary is None or len(summary) < 3: resp['code'] = -1 resp['msg'] = "请输入图书描述，并不能少于10个字符~~" return jsonify(resp) if stock < 1: resp['code'] = -1 resp['msg'] = "请输入符合规范的库存量~~" return jsonify(resp) if tags is None or len(tags) < 1: resp['code'] = -1 resp['msg'] = "请输入标签，便于搜索~~" return jsonify(resp) food_info = Food.query.filter_by(id=id).first() before_stock = 0 if food_info: model_food = food_info before_stock = model_food.stock else: model_food = Food() model_food.status = 1 model_food.created_time = getCurrentDate() model_food.cat_id = cat_id model_food.name = name model_food.price = price model_food.main_image = main_image model_food.summary = summary model_food.stock = stock model_food.tags = tags model_food.updated_time = getCurrentDate() db.session.add(model_food) ret = db.session.commit() FoodService.setStockChangeLog(model_food.id, int(stock) - int(before_stock), "后台修改") return jsonify(resp) @route_food.route("/cat") def cat(): resp_data = {} req = request.values query = FoodCat.query if "status" in req and int(req["status"]) > -1: query = query.filter(FoodCat.status == int(req["status"])) list = query.order_by(FoodCat.weight.desc(), FoodCat.id.desc()).all() resp_data["list"] = list resp_data["status_mapping"] = app.config["STATUS_MAPPING"] resp_data["search_con"] = req resp_data["current"] = "cat" return ops_render("food/cat.html", resp_data) @route_food.route("/cat-set", methods=["GET", "POST"]) def catSet(): if request.method == "GET": resp_data = {} req = request.args id = int(req.get("id", 0)) food_cat_info = None if id: food_cat_info = FoodCat.query.filter_by(id=id).first() resp_data["food_cat_info"] = food_cat_info resp_data["current"] = "cat" return ops_render("food/cat_set.html", resp_data) resp = {"code": 200, "msg": "操作成功~", "data": {}} req = request.values id = req["id"] if "id" in req else 0 name = req["name"] if "name" in req else "" weight = int(req["weight"]) if ("weight" in req and int(req["weight"]) > 0) else 1 if name is None or len(name) < 1: resp["code"] = -1 resp["msg"] = "请输入符合规范的分类名称~~" return jsonify(resp) food_cat_info = FoodCat.query.filter_by(id=id).first() if food_cat_info: model_food_cat = food_cat_info else: model_food_cat = FoodCat() model_food_cat.created_time = getCurrentDate() model_food_cat.name = name model_food_cat.weight = weight model_food_cat.updated_time = getCurrentDate() db.session.add(model_food_cat) db.session.commit() return jsonify(resp) @route_food.route("/cat-ops", methods=["POST"]) def catOps(): resp = {"code": 200, "msg": "操作成功~", "data": {}} req = request.values id = req["id"] if "id" in req else 0 act = req["act"] if "act" in req else "" if not id: resp["code"] = -1 resp["msg"] = "请选择要操作的账号~~" return jsonify(resp) if act not in ["remove", "recover"]: resp["code"] = -1 resp["msg"] = "操作有误，请重试~~" return jsonify(resp) food_cat_info = FoodCat.query.filter_by(id=id).first() if not food_cat_info: resp["code"] = -1 resp[