refactoring: custom views service.

fix: constraints of delete item from storage.
fix: constraints of delete item category from storage.
fix: localize database seeds files.
fix: view meta data in accounts list response.

server/src/api/controllers/BaseController.ts

@@ -1,6 +1,6 @@
 import { Response, Request, NextFunction } from 'express';
 import { matchedData, validationResult } from "express-validator";
-import { camelCase, omit } from "lodash";
+import { camelCase, snakeCase, omit } from "lodash";
 import { mapKeysDeep } from 'utils'
 
 export default class BaseController {
@@ -55,4 +55,12 @@ export default class BaseController {
     }
     next();
   }
+
+  /**
+   * Transform the given data to response.
+   * @param {any} data 
+   */
+  transfromToResponse(data: any) {
+    return mapKeysDeep(data, (v, k) => snakeCase(k));
+  }
 }