When working with Umbraco Forms there are some scenarios when you want to extend the functionality to perform something custom. Every time a Form is submitted a new Record is created for this Form, this Record is stored in the database and also passed to all Workflows that are configured on the form.
In our case we wanted to implement a HoneyPot to avoid some of the SPAM that comes through the forms so in cases we wanted to be able to remove a record from a custom WorkflowType. I found some solutions for Umbraco 7 but non of these worked on Umbraco 8 so I got my hands dirty and started to implement this.
I did not find a way to remove the Record from within the Workflows Execute()-method since everything I tried caused exceptions. I managed to solve it by firing of a Task that runs some time after the Record has been created.
Here's the code that we used:
public class DeleteWorkflow : WorkflowType
{
public DeleteWorkflow()
{
this.Id = new Guid("466BAB6D-ECF1-4BE8-B0E7-6C6ACC495565");
this.Name = "Delete Record";
this.Description = "Deletes the record from the Database";
this.Icon = "icon-delete";
}
public override WorkflowExecutionStatus Execute(Record record, RecordEventArgs e)
{
Task.Run(() => DeleteRecordWithDelay(record.UniqueId.ToString(),record.Form.ToString()));
return WorkflowExecutionStatus.Completed;
}
public override List<Exception> ValidateSettings()
{
return new List<Exception>();
}
public static async Task DeleteRecordWithDelay(string recordId,string formId)
{
await Task.Delay(5000);
try
{
IRecordService recordService = DependencyResolver.Current.GetService<IRecordService>();
IRecordStorage recordStorage = DependencyResolver.Current.GetService<IRecordStorage>();
IFormService formService = DependencyResolver.Current.GetService<IFormService>();
var form = formService.GetForm(Guid.Parse(formId));
var record = recordStorage.GetRecordByUniqueId(Guid.Parse(recordId), form);
recordService.Delete(record, form);
}
catch (Exception e)
{
var exception = e.Message;
throw;
}
}
}