如何在Django中按字母顺序对下拉列表进行排序

Question

I am trying to sort a drop down values in a form field in alphabetical order

Drop down is the field = strategy

I tried using the .order_by to solve this bug but it some how doesn't seems to solve it

Below is the code i tried

class AddForm(forms.ModelForm):

  class Meta:
    model = Line
    fields = ('analyst','strategy','conviction','startdate','startvalue','target','review','reason','rationale')
  def __init__(self, *args, **kwargs):
      self.user = kwargs.pop('user', None)
      super(AddForm, self).__init__(*args, **kwargs)
      self.fields['Strategy'].queryset = strategy.objects.order_by('name')

I get a indentation error and the server stops running... i also tried using

strategy = forms.ModelChoiceField(queryset=strategy.objects.order_by('name'))

Didn't work!, where am i going wrong?

Answer 1

class AddForm(forms.ModelForm):

  class Meta:
    model = Line
    fields = ['analyst','strategy','conviction','startdate','startvalue','target','review','reason','rationale']
  def __init__(self, *args, **kwargs):
      super(AddForm, self).__init__(*args, **kwargs)
      self.user = kwargs.pop('user', None)
      self.fields['strategy'].queryset = self.fields['strategy'].queryset.order_by('name')

Try this also you can take a look at this SO answer which might be helpful to understand.

Answer 2

You can order on your model Meta class

But as your error is saying, you are indenting your code with TABs and SPACEs in the same block.

Enable the tabs and spaces visualization on your ide and fix that. Basically you have to choose between a tab or a block of spaces.

Python (and other languages) that are indented usually complain if you do that.