forms: update MuliplePatchForm to acocmodate for the new 'interested_users' field

Signed-off-by: andrepapoti <andrepapoti@gmail.com>

Author: andrepapoti

patchwork/forms.py

@@ -190,14 +190,27 @@ class MultiplePatchForm(forms.Form):
         empty_value='*',
     )
 
-    def __init__(self, project, *args, **kwargs):
+    def __init__(self, project, user=None, *args, **kwargs):
         super(MultiplePatchForm, self).__init__(*args, **kwargs)
         self.fields['delegate'] = OptionalModelChoiceField(
             queryset=_get_delegate_qs(project=project), required=False
         )
         self.fields['state'] = OptionalModelChoiceField(
             queryset=State.objects.all()
         )
+        self.user = user
+        if self.user:
+            self.fields['declare_interest'] = OptionalBooleanField(
+                choices=[
+                    ('*', 'no change'),
+                    ('True', 'Interested'),
+                    ('False', 'Not interested'),
+                ],
+                coerce=lambda x: x == 'True',
+                empty_value='*',
+                required=False,
+                initial='*',
+            )
 
     def save(self, instance, commit=True):
         opts = instance.__class__._meta
@@ -219,8 +232,27 @@ def save(self, instance, commit=True):
             if field.is_no_change(data[f.name]):
                 continue
 
+            if f.name == 'declare_interest':
+                if data[f.name]:
+                    self.instance.interested_users.add(self.user)
+                else:
+                    self.instance.interested_users.remove(self.user)
+                continue
+
             setattr(instance, f.name, data[f.name])
 
         if commit:
             instance.save()
         return instance
+
+    def declare_interest_only(self):
+        interest_only = True
+        field_names = set(self.fields.keys())
+        field_names.discard({'declare_interest', 'action'})
+
+        for field_name in field_names:
+            data = self.data.get(field_name, '*')
+            if data != '*':
+                interest_only = False
+
+        return interest_only

patchwork/models.py

@@ -582,7 +582,7 @@ def save(self, *args, **kwargs):
 
         self.refresh_tag_counts()
 
-    def is_editable(self, user):
+    def is_editable(self, user, declare_interest_only=False):
         if not user.is_authenticated:
             return False
 
@@ -593,7 +593,8 @@ def is_editable(self, user):
         if self.project.is_editable(user):
             self._edited_by = user
             return True
-        return False
+
+        return declare_interest_only
 
     @staticmethod
     def filter_unique_checks(checks):

patchwork/views/__init__.py

@@ -240,7 +240,9 @@ def generic_list(
         if data and data.get('form', '') == 'patchlistform':
             data_tmp = data
 
-        properties_form = MultiplePatchForm(project, data=data_tmp)
+        properties_form = MultiplePatchForm(
+            project, data=data_tmp, user=request.user
+        )
 
     if request.method == 'POST' and data.get('form') == 'patchlistform':
         action = data.get('action', '').lower()
@@ -340,7 +342,7 @@ def process_multiplepatch_form(request, form, action, patches, context):
 
     changed_patches = 0
     for patch in patches:
-        if not patch.is_editable(request.user):
+        if not patch.is_editable(request.user, form.declare_interest_only()):
             errors.append(
                 "You don't have permissions to edit patch '%s'" % patch.name
             )