django - django管理フォームで条件を適用するには?

Question

私はDjangoでこのようなモデルを持っています:

from django.db import models


class Navigation(models.Model):
    name = models.CharField(max_length=200)

    def __unicode__(self):
        return self.name


class Question(models.Model):
    question = models.TextField()
    publication_date = models.DateField()
    is_active = models.BooleanField(default=1)
    is_premium = models.BooleanField(default=0)

    def __unicode__(self):
        return self.question


class QuestionType(models.Model):
    question = models.OneToOneField(Question)
    question_types = (
                      (1, 'Multiple Choice'),
                      (2, 'Text Answer')
                      )
    type = models.IntegerField(choices=question_types, verbose_name="Select Question Type")


class Category(models.Model):
    question = models.OneToOneField(Question)
    navigation = models.OneToOneField(Navigation)
    choices_options = (
        (1, 'Begineer'),
        (2, 'Intermediate'),
        (3, 'Expert')
    )

    choices = models.IntegerField(choices=choices_options, verbose_name="Select level")


class Choice(models.Model):
    question = models.ForeignKey(Question)
    choice_text = models.CharField(max_length=200)


    def __unicode__(self):
        return self.choice_text

class Answer(models.Model):
    question = models.OneToOneField(Question)
    choice = models.OneToOneField(Choice)

そして、私は次のような admin.py を持っています:

from django.contrib import admin
from quiz.models import Navigation, Category, Question, Choice, Answer, QuestionType



class ChoiceInline(admin.TabularInline):
    model = Choice
    extra = 3


class CategoryInline(admin.TabularInline):
    model = Category


class QuestionTypeInline(admin.TabularInline):
    model = QuestionType

class AnswerInline(admin.TabularInline):
    model = Answer

class QuestionAdmin(admin.ModelAdmin):
    fieldsets = [
    (None,
    {'fields': ['question']}),
    ('Date information', {'fields': ['publication_date'], 'classes': ['collapse']}),
    ]
    inlines = [ChoiceInline, CategoryInline, AnswerInline, QuestionTypeInline]

    # Display two headings while displaying all the questions
    list_display = ('question', 'publication_date')

    # Add filter option
    list_filter = ['publication_date']

    # Add search capability
    search_fields = ['question']

    # Show the latest elements by default
    date_hierarchy = 'publication_date'




admin.site.register(Question, QuestionAdmin)
admin.site.register(Navigation)

質問には 2 種類あります: 質問Multiple Choice questions, text based questions.の作成中に、ユーザーが複数選択の質問を選択した場合は選択肢を表示し、ユーザーがテキストベースの質問を選択した場合は 1 つの入力に基づいてテキストを表示したいと考えています。どうやってやるの？