class Task(TaskResource):
- read_only_fields = ['id', 'entry', 'urgency']
+ read_only_fields = ['id', 'entry', 'urgency', 'uuid']
class DoesNotExist(Exception):
pass
+ class CompletedTask(Exception):
+ """
+ Raised when the operation cannot be performed on the completed task.
+ """
+ pass
+
+ class DeletedTask(Exception):
+ """
+ Raised when the operation cannot be performed on the deleted task.
+ """
+ pass
+
+ class NotSaved(Exception):
+ """
+ Raised when the operation cannot be performed on the task, because
+ it has not been saved to TaskWarrior yet.
+ """
+ pass
+
def __init__(self, warrior, data={}):
self.warrior = warrior
self._load_data(data)
def __unicode__(self):
return self['description']
+ @property
+ def completed(self):
+ return self['status'] == six.text_type('completed')
+
+ @property
+ def deleted(self):
+ return self['status'] == six.text_type('deleted')
+
+ @property
+ def waiting(self):
+ return self['status'] == six.text_type('waiting')
+
+ @property
+ def pending(self):
+ return self['status'] == six.text_type('pending')
+
+ @property
+ def saved(self):
+ return self['uuid'] is not None or self['id'] is not None
+
def serialize_due(self, date):
return date.strftime(DATE_FORMAT)
return ','.join(tags) if tags else ''
def delete(self):
- self.warrior.execute_command([self['id'], 'delete'], config_override={
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved before it can be deleted")
+
+ # Refresh the status, and raise exception if the task is deleted
+ self.refresh(only_fields=['status'])
+
+ if self.deleted:
+ raise self.DeletedTask("Task was already deleted")
+
+ self.warrior.execute_command([self['uuid'], 'delete'], config_override={
'confirmation': 'no',
})
+ # Refresh the status again, so that we have updated info stored
+ self.refresh(only_fields=['status'])
+
+
def done(self):
- self.warrior.execute_command([self['id'], 'done'])
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved before it can be completed")
+
+ # Refresh, and raise exception if task is already completed/deleted
+ self.refresh(only_fields=['status'])
+
+ if self.completed:
+ raise self.CompletedTask("Cannot complete a completed task")
+ elif self.deleted:
+ raise self.DeletedTask("Deleted task cannot be completed")
+
+ self.warrior.execute_command([self['uuid'], 'done'])
+
+ # Refresh the status again, so that we have updated info stored
+ self.refresh(only_fields=['status'])
def save(self):
- args = [self['id'], 'modify'] if self['id'] else ['add']
+ args = [self['uuid'], 'modify'] if self.saved else ['add']
args.extend(self._get_modified_fields_as_args())
- self.warrior.execute_command(args)
+ output = self.warrior.execute_command(args)
+
+ # Parse out the new ID, if the task is being added for the first time
+ if not self.saved:
+ id_lines = [l for l in output if l.startswith('Created task ')]
+
+ # Complain loudly if it seems that more tasks were created
+ # Should not happen
+ if len(id_lines) != 1 or len(id_lines[0].split(' ')) != 3:
+ raise TaskWarriorException("Unexpected output when creating "
+ "task: %s" % '\n'.join(id_lines))
+
+ # Circumvent the ID storage, since ID is considered read-only
+ self._data['id'] = int(id_lines[0].split(' ')[2].rstrip('.'))
+
self._modified_fields.clear()
+ self.refresh()
def add_annotation(self, annotation):
- args = [self['id'], 'annotate', annotation]
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved to add annotation")
+
+ args = [self['uuid'], 'annotate', annotation]
self.warrior.execute_command(args)
self.refresh(only_fields=['annotations'])
def remove_annotation(self, annotation):
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved to add annotation")
+
if isinstance(annotation, TaskAnnotation):
annotation = annotation['description']
- args = [self['id'], 'denotate', annotation]
+ args = [self['uuid'], 'denotate', annotation]
self.warrior.execute_command(args)
self.refresh(only_fields=['annotations'])
def _get_modified_fields_as_args(self):
args = []
- for field in self._modified_fields:
- args.append('{}:{}'.format(field, self._data[field]))
+
+ # If we're modifying saved task, simply pass on all modified fields
+ if self.saved:
+ for field in self._modified_fields:
+ args.append('{0}:{1}'.format(field, self._data[field]))
+ # For new tasks, pass all fields that make sense
+ else:
+ for field in self._data.keys():
+ if field in self.read_only_fields:
+ continue
+ args.append('{0}:{1}'.format(field, self._data[field]))
+
return args
def refresh(self, only_fields=[]):
- args = [self['uuid'], 'export']
+ # Raise error when trying to refresh a task that has not been saved
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved to be refreshed")
+
+ # We need to use ID as backup for uuid here for the refreshes
+ # of newly saved tasks. Any other place in the code is fine
+ # with using UUID only.
+ args = [self['uuid'] or self['id'], 'export']
new_data = json.loads(self.warrior.execute_command(args)[0])
if only_fields:
to_update = dict(