add validators

		# Submit Button

		if request.form['action'] == 'submit':

			if all([form.validate_on_submit() for form in forms]):

			# in case this person has opened this batch more than once and already submitted but still 

			# wants to submit this batch again

			if current_batch in current_annotator.batches:

				flash(f'Batch {batch_id} already submitted!', 'action')

				else:

			if all([form.validate_on_submit() for form in forms]):

				for form, tuple_ in zip(forms, current_batch.tuples):

					if Data.query.filter_by(annotator=current_annotator, tuple_=tuple_).first():