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| # Here's your list of choices that would be displayed in a drop-down | |
| # element on the web. It needs to be a tuple, and we define this | |
| # as a variable just for readability/convenience. | |
| # | |
| # This example has 3 choices, each of which consists of two parts: | |
| # 1. the thing that get strored in your database | |
| # 2. the thing that you see in a dropdown list | |
| LABEL_CHOICES = ( | |
| ('this gets stored in your database', 'This item is what you see in the drop-down'), | |
| ('django', 'Django'), | |
| ('python', 'Python'), | |
| ) | |
| class Post(models.Model): | |
| # Now, when you define your ArrayField's base field (in this case a CharField), | |
| # you can specify the list of choices that will be precented to the user. | |
| # Use: choices=LABEL_CHOICES | |
| labels = ArrayField( | |
| models.CharField(max_length=32, blank=True, choices=LABEL_CHOICES), | |
| default=list, | |
| blank=True, | |
| ) |
How do you use get_foo_display() for labels field as choices is nested inside an array?
Thanks
How do you use get_foo_display() for labels field as choices is nested inside an array?
That's a great question @sauravkhakurel, and I haven't implemented this, but I think you'd need to override get_foo_display() for your model so that it returned a list of the "display" values. Continuing with the Post example from above, it might look something like this:
class Post(models.Model):
# Now, when you define your ArrayField's base field (in this case a CharField),
# you can specify the list of choices that will be precented to the user.
# Use: choices=LABEL_CHOICES
labels = ArrayField(
models.CharField(max_length=32, blank=True, choices=LABEL_CHOICES),
default=list,
blank=True,
)
def get_labels_display(self):
lookup = {v: k for k, v in LABEL_CHOICES}
return [lookup.get(v, "unknown") for v in self.labels]
How do you use get_foo_display() for labels field as choices is nested inside an array?
That's a great question @sauravkhakurel, and I haven't implemented this, but I think you'd need to override
get_foo_display()for your model so that it returned a list of the "display" values. Continuing with thePostexample from above, it might look something like this:class Post(models.Model): # Now, when you define your ArrayField's base field (in this case a CharField), # you can specify the list of choices that will be precented to the user. # Use: choices=LABEL_CHOICES labels = ArrayField( models.CharField(max_length=32, blank=True, choices=LABEL_CHOICES), default=list, blank=True, ) def get_labels_display(self): lookup = {v: k for k, v in LABEL_CHOICES} return [lookup.get(v, "unknown") for v in self.labels]
Thanks for the answer. I got help from a colleague and did something similar to this to solve the problem that I had at hand.
I will try. Thank you.