Creating a dynamic choice field

👻 Check our latest review to choose the best laptop for Machine Learning engineers and Deep learning tasks!

I"m having some trouble trying to understand how to create a dynamic choice field in django. I have a model set up something like:

class rider(models.Model):
     user = models.ForeignKey(User)
     waypoint = models.ManyToManyField(Waypoint)

class Waypoint(models.Model):
     lat = models.FloatField()
     lng = models.FloatField()

What I"m trying to do is create a choice Field whos values are the waypoints associated with that rider (which would be the person logged in).

Currently I"m overriding init in my forms like so:

class waypointForm(forms.Form):
     def __init__(self, *args, **kwargs):
          super(joinTripForm, self).__init__(*args, **kwargs)
          self.fields["waypoints"] = forms.ChoiceField(choices=[ (o.id, str(o)) for o in Waypoint.objects.all()])

But all that does is list all the waypoints, they"re not associated with any particular rider. Any ideas? Thanks.

👻 Read also: what is the best laptop for engineering students?

Creating a dynamic choice field __del__: Questions

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

from time import sleep
sleep(0.1) # Time in seconds

Creating a dynamic choice field __del__: Questions

We hope this article has helped you to resolve the problem. Apart from Creating a dynamic choice field, check other __del__-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:

• Italiano Creating a dynamic choice field
• Deutsch Creating a dynamic choice field
• Français Creating a dynamic choice field
• Español Creating a dynamic choice field
• Türk Creating a dynamic choice field
• Русский Creating a dynamic choice field
• Português Creating a dynamic choice field
• Polski Creating a dynamic choice field
• Nederlandse Creating a dynamic choice field
• 中文 Creating a dynamic choice field
• 한국어 Creating a dynamic choice field
• 日本語 Creating a dynamic choice field
• हिन्दी Creating a dynamic choice field