feat: generate order number (#69)

Добавил генерацию номера заказа при создании

Co-authored-by: RustamRu <kagapov.rustam@gmail.com>
Reviewed-on: #69
Reviewed-by: Primakov Alexandr Alexandrovich <primakovpro@gmail.com>

server/routers/dry-wash/model/order.js

@@ -1,5 +1,6 @@
 const { Schema, model } = require('mongoose')
 const { orderStatus } = require('./const')
+const { OrderNumberModel } = require('./order.number')
 
 const schema = new Schema({
     phone: {
@@ -27,6 +28,10 @@ const schema = new Schema({
         type: String,
         required: true
     },
+    orderNumber: {
+        type: String,
+        unique: true
+    },
     status: {
         type: String,
         required: true,
@@ -47,6 +52,18 @@ const schema = new Schema({
     },
 })
 
+schema.pre('save', async function (next) {
+    if (this.isNew) {
+        const counter = await OrderNumberModel.findOneAndUpdate(
+            { _id: 'orderNumber' },
+            { $inc: { sequenceValue: 1 } },
+            { new: true, upsert: true }
+        )
+        this.orderNumber = counter.sequenceValue.toString()
+    }
+    next()
+})
+
 schema.set('toJSON', {
     virtuals: true,
     versionKey: false,

server/routers/dry-wash/model/order.number.js

@@ -0,0 +1,14 @@
+const { Schema, model } = require('mongoose')
+
+const schema = new Schema({
+  _id: {
+      type: String,
+      required: true,
+  },
+  sequenceValue: {
+      type: Number,
+      default: 0
+  }
+})
+
+exports.OrderNumberModel = model('dry-wash-order-number', schema)