How can i get a object from a other function in django - django

Question

I have two functions projectTimerStart to start the timer and projectTimerStop
i want to use the object which is created in projectTimerStart and i want to end the time when projectTimerStop , and this should be saved in a database
ps: Both the functions are not in class they are normal functions
def projectTimerStart(request, slug):
project_detail = Project.objects.get(slug=slug)
b = ProjectTimer(time_started=datetime.now(),
working_project=project_detail,
working_freelancer=request.user
)
b.save()
return HttpResponseRedirect(reverse('project_timer', kwargs=
{"slug":slug}))
def projectTimerStop(request, slug):
project_detail = Project.objects.get(slug=slug)
#i want something here super method or something
return HttpResponseRedirect(reverse('project_timer', kwargs=
{"slug": slug}))
models.py
class Project(models.Model):
project_title = models.CharField(max_length=100)
project_description = models.TextField()
created_by = models.ForeignKey(
User, on_delete=models.CASCADE, related_name='created')
assigned_to = models.ManyToManyField(
User, blank=True, related_name='assigned_by')
slug = models.SlugField()
hourly_budget = models.PositiveIntegerField(blank=True, null=True)
technologies = models.ManyToManyField(
Technologies, related_name='technologies_used')
time_posted = models.DateTimeField(auto_now_add=True)
request_id = models.ManyToManyField(
User, related_name='requested_by', blank=True)
def __str__(self):
return self.project_title
def save(self, *args, **kwargs):
self.slug = slugify(self.project_title)
super(Project, self).save(*args, **kwargs)
def get_absolute_url(self):
return reverse('project_detail', kwargs={'slug': self.slug})
def get_timer_url(self):
return reverse('project_timer', kwargs={'slug': self.slug})
def round_datetime(dt):
minutes = round((dt.minute + float(dt.second) / 60) / 15) * 15 -
dt.minute
return dt + datetime.timedelta(minutes=minutes, seconds=-dt.second)
class ProjectTimer(models.Model):
time_started = models.DateTimeField()
time_ended = models.DateTimeField(blank=True, null=True)
working_project = models.ForeignKey(Project, on_delete=models.CASCADE)
working_freelancer = models.ForeignKey(
User, on_delete=models.CASCADE, blank=True, null=True)

Answer 1

If each of your project objects will have one and only project timer objects, you can add project_timer = models.OneToOneField(ProjectTimer) to your Project model and access to the project timer by using project_detail.project_timer.
If not, you need to know at least one feature of that project_timer in order to fetch it from database. Or you can iterate all of your ProjectTimer objects that belongs to that Project and select the appropriate one by:
models.py
class Project(models.Model):
# Some fields
project_timers = models.ManyToManyField(ProjectTimer)
views.py
def projectTimerStop(request, slug):
project_detail = Project.objects.get(slug=slug)
for pt in project_detail.project_timers.all():
if pt.some_field == "THIS IS CORRECT TIMER":
# Here is your project_detail
print(str(pt))
return HttpResponseRedirect(reverse('project_timer', kwargs=
{"slug": slug}))