#86 Edit payment

* adds button for payment editing
* adds new edit form payment editing
* adds tests for views and workflow

konova/forms.py

@@ -87,7 +87,7 @@ class BaseForm(forms.Form):
         """
         self.fields[field].widget.attrs["placeholder"] = val
 
-    def load_initial_data(self, form_data: dict, disabled_fields: list):
+    def load_initial_data(self, form_data: dict, disabled_fields: list = None):
         """ Initializes form data from instance
 
         Inserts instance data into form and disables form fields
@@ -99,8 +99,9 @@ class BaseForm(forms.Form):
             return
         for k, v in form_data.items():
             self.initialize_form_field(k, v)
-        for field in disabled_fields:
-            self.disable_form_field(field)
+        if disabled_fields:
+            for field in disabled_fields:
+                self.disable_form_field(field)
 
     def add_widget_html_class(self, field: str, cls: str):
         """ Adds a HTML class string to the widget of a field

konova/utils/message_templates.py

@@ -46,6 +46,7 @@ DEADLINE_REMOVED = _("Deadline removed")
 
 # PAYMENTS
 PAYMENT_ADDED = _("Payment added")
+PAYMENT_EDITED = _("Payment edited")
 PAYMENT_REMOVED = _("Payment removed")
 
 # REVOCATIONS