how to append data

Hello,
 
Thank you for your question.
 
The current WebDataRocks version supports appending data only for the JSON data source.
 
It is implemented through updateData method with its `partial` parameter that has to be set as true.
 
Our team kindly recommend investigating the following instruction:

1. First of all, we add id and delete types to the first object of JSON array:

   {
   "Category":
       { "type": "string" },    
       "Price": { "type": "number" },
       "RowId": { "type": "id" },
       "DeleteRow": { "type": "delete" }
   }

2. Then, when defining the data, we specify an id field for every object the following way:

   {
       "Category": "Accessories",
       "Price": 242,
       "RowId": 1 
   }

3. To add or update only some of the records use partial: true:
   

   var dataForUpdate = [{
       "Category": "Cars",
       "Price": 51844,
       "RowId": 4
   }]
   webdatarocks.updateData({data: dataForUpdate}, {partial: true});

4. To delete the records specify id and delete fields:
   

   var dataForUpdate = [{
       "RowId": 3,
       "DeleteRow": true
   }]
   webdatarocks.updateData({data: dataForUpdate}, {partial: true});

 
Please, check out an example we made for you.
 
Regards,
WebDataRocks Team