Django single object update in for loop - django

Question

Hi I'm wondering if it possible or how to update single model object name inside for loop by his id using object.filter(pk=id).update(name='name') function
I try to do this but its not working in for loop. It's working only outside loop
EDIT
my edit view with for loop:
first i prepare data based on my database.Data can be modified by other methods so i keep they in global list schedule_table.
When I'm saving project object i want to update other data representing by schedule_table, using for loop.
def ProjectEditView(request, pk):
project = get_object_or_404(Project, pk=17)
schedule_table_load_form_db(project)#preparing list with data
Task_Schedule_TableView(request)
project_form = ProjectForm(request.POST or None, instance=project)
project_form_valid = project_form.is_valid()
if project_form_valid:
with transaction.atomic():
# save form in DB
project = project_form.save(commit=False)
project.save()
# modify other object based on changed list schedule_table
if schedule_table.__len__() > 0:
#my for loop
for p in schedule_table:
team = Team.objects.get(name=p.team)
phase = Phase.objects.filter(pk=p.pk).update(name=p.name,
project=project,
team=team,
order=p.order,
duration=p.duration,
prev=p.prev,
start=p.start,
end=p.end)
# some other staff..... outside the loop
return redirect('Project:ProjectListView')
context = {'project_form': project_form}
return render(request, 'Project/test.html', context)
function to prepare list with data:
def schedule_table_load_form_db(project):
global schedule_table
schedule_table = []
phases = Phase.objects.filter(project=project)
for phase in phases:
tasks_list = Task.objects.filter(phase=phase)
tasks = []
for task in tasks_list:
task_dict = Task_dictionary.objects.get(pk=task.task_dictionary.pk)
tmp = ''
for e in task.employers.employer.all():
user = User.objects.get(pk=e.user_id)
tmp += user.first_name + ' ' + user.last_name + ','
tasks.append(TableTask(pk=task.pk,
order=task.order,
name=task.name,
duration=task.duration,
employer=tmp,
start=task.start,
end=task.end,
min_employers_nr=task_dict.min_employers_nr,
max_employers_nr=task_dict.max_employers_nr,
prev=task.prev_task,
))
schedule_table.append(TablePhase(pk=phase.pk,
name=phase.name,
duration=0.0,
start=phase.start,
end=phase.end,
team=phase.team.name,
task=tasks,
order=schedule_table.__len__(),
prev=phase.prev
))