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I"m building a support ticket tracking app and have a few models I"d like to create from one page. Tickets belong to a Customer via a ForeignKey. Notes belong to Tickets via a ForeignKey as well. I"d like to have the option of selecting a Customer (that"s a whole separate project) OR creating a new Customer, then creating a Ticket and finally creating a Note assigned to the new ticket.
Since I"m fairly new to Django, I tend to work iteratively, trying out new features each time. I"ve played with ModelForms but I want to hide some of the fields and do some complex validation. It seems like the level of control I"m looking for either requires formsets or doing everything by hand, complete with a tedious, hand-coded template page, which I"m trying to avoid.
Is there some lovely feature I"m missing? Does someone have a good reference or example for using formsets? I spent a whole weekend on the API docs for them and I"m still clueless. Is it a design issue if I break down and hand-code everything?
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Django: multiple models in one template using forms __del__: Questions
How can I make a time delay in Python?
5 answers
I would like to know how to put a time delay in a Python script.
Answer #1
import time
time.sleep(5) # Delays for 5 seconds. You can also use a float value.
Here is another example where something is run approximately once a minute:
import time
while True:
print("This prints once a minute.")
time.sleep(60) # Delay for 1 minute (60 seconds).
Answer #2
You can use the sleep()
function in the time
module. It can take a float argument for sub-second resolution.
from time import sleep
sleep(0.1) # Time in seconds
Django: multiple models in one template using forms __del__: Questions
How to delete a file or folder in Python?
5 answers
How do I delete a file or folder in Python?
Answer #1
os.remove()
removes a file.os.rmdir()
removes an empty directory.shutil.rmtree()
deletes a directory and all its contents.
Path
objects from the Python 3.4+ pathlib
module also expose these instance methods:
pathlib.Path.unlink()
removes a file or symbolic link.pathlib.Path.rmdir()
removes an empty directory.
We hope this article has helped you to resolve the problem. Apart from Django: multiple models in one template using forms, check other __del__-related topics.
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Boston | 2023-03-24
I was preparing for my coding interview, thanks for clarifying this - Django: multiple models in one template using forms in Python is not the simplest one. Will get back tomorrow with feedback
Abu Dhabi | 2023-03-24
Thanks for explaining! I was stuck with Django: multiple models in one template using forms for some hours, finally got it done 🤗. Checked yesterday, it works!
Moscow | 2023-03-24
I was preparing for my coding interview, thanks for clarifying this - Django: multiple models in one template using forms in Python is not the simplest one. I am just not quite sure it is the best method