Add getTableNameById method (#226)

* Add getTableNameById method

Author: viktor-liablin

backendless.d.ts

@@ -269,6 +269,8 @@ declare module Backendless {
 
         function describe(model: string | Object | Function): Promise<Object>;
 
+        function getTableNameById(tableId: string): Promise<string>;
+
         function mapTableToClass(tableName: string, clientClass: Function): void;
         function mapTableToClass(clientClass: Function): void;
     }

src/data/index.js

@@ -61,6 +61,12 @@ export default class Data {
     })
   }
 
+  async getTableNameById(tableId) {
+    return this.app.request.get({
+      url: this.app.urls.dataTableNameById(tableId),
+    })
+  }
+
   mapTableToClass(tableName, clientClass) {
     if (typeof tableName === 'function') {
       clientClass = tableName

src/urls.js

@@ -157,6 +157,10 @@ export default class Urls {
     return `${this.dataTable(tableName)}/permissions/${permissionType}/${objectId}`
   }
 
+  dataTableNameById(tableId) {
+    return `${this.data()}/${tableId}/table-name`
+  }
+
   transactions() {
     return `${this.root()}/transaction/unit-of-work`
   }

test/tsd.ts

@@ -562,6 +562,8 @@ function testPersistence() {
     promiseObject = Backendless.Data.describe('str');
     promiseObject = Backendless.Data.describe({});
 
+    promiseObject = Backendless.Data.getTableNameById('str');
+
     Backendless.Data.mapTableToClass(Model);
     Backendless.Data.mapTableToClass('ClassName', Model);
 }

test/unit/specs/data/store.js

@@ -188,4 +188,24 @@ describe('<Data> Store', function() {
     })
   })
 
+  describe('Table Name By Id', () => {
+    it('table id from string', async () => {
+      const fakeResult = 'tableName'
+      const tableId = '123'
+
+      const req1 = prepareMockRequest(fakeResult)
+
+      const result = await Backendless.Data.getTableNameById(tableId)
+
+      expect(req1).to.deep.include({
+        method : 'GET',
+        path   : `${APP_PATH}/data/${tableId}/table-name`,
+        headers: {},
+        body   : undefined
+      })
+
+      expect(result).to.be.eql(fakeResult)
+    })
+  })
+
 })