python - ChoiceField - choices based on boolean field -

i trying have choicefield displays users projectmanager boolean field checked true. having trouble figuring out way though.

a little background. when user created, there checkbox can select if project manager or not. if check it, want dropdown choice field display project managers (later, when creating new project).

here code snippets help.

project - models.py

class project(models.model): client = models.foreignkey(clients, related_name='projects') project_manager = models.foreignkey(customuser, related_name='project manager') created_by = models.foreignkey(user, related_name='created_by') ... 

clients - models.py

class clients(models.model):     client_name = models.charfield(max_length=255, verbose_name='client name', unique=true)    ...      class customuser(user):    company = models.foreignkey(clients, related_name="belongs to")    pm = models.booleanfield(verbose_name='project manager') 

project forms.py

class timematerialsform(modelform): status = forms.choicefield(choices=status_choices) project_manager = forms.choicefield(??) def __init__(self, *args, **kwargs):     super(timematerialsform, self).__init__(*args, **kwargs)     self.fields['status'].initial = 't'     self.fields.keyorder = ['proj_name', 'client','project_manager','starts_on','desc', 'due_date','completed_on','quote_value','pt_percent','pt_desc','purchase_order','sred','status', 'notes']     self.fields['status'].widget=forms.hiddeninput()  ... 

thanks everyone!

steve

does help?

class timematerialsform(modelform):    status = forms.choicefield(choices=status_choices)    project_manager = forms.forms.modelchoicefield(queryset=customuser.objects.filter(pm=true))    ...   

http://docs.djangoproject.com/en/dev/ref/forms/fields/#modelchoicefield