App Maker删除表格上的项目并更新

Question

I have an app that I would like to be able to take columns from a google spreadsheet and make a list on a table in my app. Also I would like to be able to remove items from this table.

As of now I am using the AMU library function AMU.deleteAll , all it does is

AMU.deleteAll = function(widget){
  var records = widget.datasource.items;
  records.forEach(function(record){
   record._delete();
  });  
};

So what happens is that when I have a completely new and blank table my app can update from my spreadsheet when I use AMU.import.fromSpreadsheet (check here for full library goo.gl/RkeqZw) it will take all the items from my spreadsheet and place them properly in my table, after that I can use the delete function to remove all items on my table. Here is where things get all screwy, when I try to use the import function again the list gets populated with empty entries and if I try to use the delete function I get an error:

"Drive Table internal error. Record not found. Caused by: Execution Failed. More information: Object not found at path: camo0A_084fQ. (HTTP status code: 404) Error: Drive Table internal error. Record not found. at deleteAllData (ServerScript:232)"

I am not sure why this is happening, to me it seems like the data is being saved and the delete function only removes the value, and not the actual entry.

Answer 1

If you want to delete all items from your model you can make single server call (the code you quoted above does sever call for each individual item loaded on client):

// server script to delete all records from model
function deleteAllRecordsFromModel() {
  var allRecords = app.models.MyModel.newQuery().run();
  app.deleteRecords(allRecords);
}

// client script to call server function
google.script.run
  .withSuccessHandler(function() {
     // TODO: Handle success (optional)
  })
  .withFailureHandler(function() {
     // TODO: Handle error (optional)
  })
  .deleteAllRecordsFromModel();