Fixed transaction checking.

Now the default value for the form is set to the value
given in TransactionType.needsCheck

k4ever/transaction/forms.py

@@ -11,3 +11,7 @@ class TransactionForm(forms.ModelForm):
 	def clean_amount(self):
 		data = self.cleaned_data['amount']
 		return data
+	def clean(self):
+		cleaned_data = super(TransactionForm, self).clean()
+		self.instance.checked = not cleaned_data['transactionType'].needsCheck
+		return cleaned_data