[Python-Dev] Generate Dynamic lists

[Oleg Broytman]

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On Thu, Oct 20, 2011 at 06:51:05PM +0000, Asif Jamadar wrote:
> So I'm trying to generate dynamic choices for  django form. Here i'm usig formset concept (CODE is mentioned below)
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> Suppose i have list called criteria_list = ['education', 'know how', 'managerial', 'interpersonal', ]
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> now i need to generate choices as follows
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> list1 = [('education', 1), ('education', 2), ('education', 3), (''education' , 4) , ('know how', 1) ('know ho', 2), ('know ho', 3), ('know ho', 4)]
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> list2 = [('education', 1), ('education', 2), ('education', 3), (''education' , 4) , ('managerial', 1) ('managerial', 2), ('managerial', 3), ('managerial', 4)]
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> list3 = [('education', 1), ('education', 2), ('education', 3), (''education' , 4) , ('interpersonal', 1) ('interpersonal', 2), ('interpersonal', 3), ('interpersonal', 4)]
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> list4 = [('know how', 1), ('know how', 2), ('know how ', 3), ('know how' , 4) , ('managerial', 1) ('managerial', 2), ('managerial', 3), ('managerial', 4)]
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> list5 = [('know how', 1), ('know how', 2), ('know how ', 3), ('know how' , 4) , ('interpersonal', 1) ('interpersonal', 2), ('interpersonal', 3), ('interpersonal', 4)]
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> list6= [('managerial', 1), ('managerial', 2), ('managerial ', 3), ('managerial' , 4) , ('interpersonal', 1) ('interpersonal', 2), ('interpersonal', 3), ('interpersonal', 4)]
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> How can i achive this in python?
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> The above all eachh list become the  choices for each form.
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> Suppose i have formset of 6 forms. Then how can i assign above dynamic generates list to the choice field of each form.
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> I tried by using this following code but no luck
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> view.py
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> def evaluation(request):
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>     evaluation_formset = formset_factory(EvaluationForm, formset=BaseEvaluationFormset, extra=6)
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>     if request.POST:
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>         formset = evaluation_formset(request.POST)
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>         ##validation and save
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>     else:
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>         formset = evaluation_formset()
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>     render_to_response(formset)
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> forms.py
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> class EvaluationForm(forms.Form):
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>     value = forms.ChoiceField(widget=forms.RadioSelect(renderer=HorizontalRadioRenderer))
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> class BaseEvaluationFormSet(BaseFormSet):
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>     def __init__(self, *args, **kwargs):
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>         super(BaseEvaluationFormSet, self).__init__(*args, **kwargs)
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>         for form_index, form in enumerate(self.forms):
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>             form.fields["value"].choices = self.choice_method(form_index)
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>     def choice_method(self, form_index):
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>         list = []
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>         item_list = []
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>         criteria_list = []
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>         criteria_length = len(sub_criterias)-1
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>         for criteria_index in range(criteria_length):
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>             counter = 1
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>             if criteria_index == form_index:
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>                 for j in range(criteria_length-counter):
>                     x = 1
>                     for i in range(6):
>                  criteria_list.append((sub_criterias[criteria_index], sub_criterias[criteria_index]))
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>                         item_list.append((sub_criterias[criteria_index+ 1], sub_criterias[criteria_index+1]))
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>                         list =  criteria_list +item_list
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>                         counter = counter + 1
>                         if x != criteria_length:
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>                             x = x + 1
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>             return list
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Oleg.
-- 
     Oleg Broytman            http://phdru.name/            phd at phdru.name
           Programmers don't die, they just GOSUB without RETURN.