Strategies for detecting file import failures within Angular UI Grid

Currently implementing Angular UI Grid for file imports.
Here is my configuration:

enableGridMenu: true,
importerDataAddCallback: function (grid, newObjects) {

Encountering an error when trying to import non-CSV files:

uncaught exception: UNEXPECTED_END_OF_RECORD at char...

Seeking a way to display an alert box if import fails.
Came across the uiGridImporterService which contains a method called alertError(grid, headerRow).
Unsure if this is the solution I need.

How can I implement an Alert in case of import failure?
Additionally, is there a way to verify that only .csv files are being imported?

javascriptangularjscsvangular-ui-grid

Answer №1

Check out this snippet of code that generates a notification when a CSV import fails:

CSV.error = function (err){
    var msg = CSV.dump(err);
    CSV.reset();
    //alert("CSV import failed.");
    toastr["error"]("Import failed.");
    throw msg;
};

Answer №2

Utilize $q

When you use $q, you are able to create a promise that has the potential to either succeed or fail. In the event of failure, you have the option to trigger an alert message.

Illustrative Example

This example is extracted from the AngularJS documentation

return $q(function(resolve, reject) {
  setTimeout(function() {
    if (okToGreet(name)) {
      resolve('Hello, ' + name + '!');
    } else {
      reject('Unable to greet ' + name + '.');
    }
  }, 1000);
});

In case of a failed promise return, you can prompt an alert to inform the user about the failure.

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