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ViewsIs there a way to make a form dynamic in django
I'm trying to make a dynamic dropdown list in the Admin Panel. It should show all the fields from a certain model.
Here is the snippet of my code:
JS_FUNCTION = """
obj = document.getElementById('id_field_name');
for (let i = 0, len = test.length; i < len; i++) {
var opt = document.createElement('option');
opt.value = test[i];
opt.innerHTML = test[i];
obj.appendChild(opt);
}
"""
def set_queryset(value):
# model = SyncModel.objects.get(id=value)
# return model.get_fields()
return ["a", "b", "c", "d"]
class WhitelistForm(forms.ModelForm):
sync_model = forms.ModelChoiceField(
queryset=SyncModel.objects.all(),
widget=forms.Select(
attrs={
"onchange": f'console.log(value); var test = {set_queryset("value")}; {JS_FUNCTION}',
"required": True,
}
),
)
field_name = forms.ChoiceField(
choices=(),
)
class Meta:
model = WhitelistModel
fields = "__all__"
The problem is, I need to return the fields from the model. However, when I pass the 'value' as a parameter for the python function, it doesn't send the id the is printed on the console.log.
Console Log output:
I'd like to know if there is a way to make the model dynamic only on the form file.
1 answers
Answer question0
One way you could accomplish your goal is to write a function that returns the names of the fields in your model, with the desired values for the options. You could use a forms.ChoiceField and set choices=getFields(). Remember that choices takes a tuple of tuples, so that is what you must return from getFields().
from app.model import myModel
def getFields():
all_fields = myModel._meta.fields
*Do something to extract the names in the format you want*
*Create a list of vals to zip to the names*
data = tuple(zip(vals, all_fields))
return data