added category

src/middlewares/existance.js

@@ -2,6 +2,7 @@ import UserService from '../services/user.js';
 import GroupService from '../services/group.js';
 import AbstractProductService from '../services/abstractproduct.js';
 import ProductService from '../services/product.js';
+import CategoryService from '../services/category.js';
 import log from '../utils/log.js';
 import statuses from '../utils/status.js';
 
@@ -79,6 +80,26 @@ const productExists = async (req, res, next) => {
     } catch (e) { return res.status(500).send(log.unknownError(`${TAG}/productExists: ${e}`)) }
 }
 
+const categoryNameDoesntExist = async (req, res, next) => {
+    try {
+        const { categoryName, localId, groupId } = req.body;
+
+        let result = await CategoryService.getByName(groupId, localId, categoryName);
+        if (result != statuses.not_found) return res.status(400).send("Such category name exists");
+        next();
+    } catch (e) { return res.status(500).send(log.unknownError(`${TAG}/categoryNameDoesntExist: ${e}`)) }
+}
+
+const categoryExists = async (req, res, next) => {
+    try {
+        const { localId, groupId } = req.body;
+
+        let result = await CategoryService.getById(groupId, localId);
+        if (!result || result == statuses.not_found) return res.status(404).send("No such category");
+        next();
+    } catch (e) { return res.status(500).send(log.unknownError(`${TAG}/categoryExists: ${e}`)) }
+}
+
 export default {
     usernameExists,
     usernameDoesntExist,
@@ -88,5 +109,8 @@ export default {
     groupNameDoesntExist,
 
     abstractProductExists,
-    productExists
+    productExists,
+
+    categoryNameDoesntExist,
+    categoryExists
 }