回答編集履歴
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実行結果について記述しました
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**実行結果**
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![実行結果](f96ff5f6a134ca25285e2c2f63be1645.png)
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実行結果の画像を掲載しました
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[実行結果](
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![実行結果](f96ff5f6a134ca25285e2c2f63be1645.png)
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1
回答したあと気になったので少し実装してみました。ManyToManyFieldではなくForeignKeyを使用していますので質問者様の意図から外れてるかもしれません。
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ただ、もし自分だったらスキルの値を入力するフォームをスキル数分用意しちゃうと思います。
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**追記しました**
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Formを複数使用する方法で実装してみました。
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これ質問者様の意図したこととあってますでしょうか
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Python 3.5.2
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Django 2.0
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**models.py**
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```python
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from django import forms
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from django.db import models
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class Skill(models.Model):
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name = models.CharField(max_length=16, blank=True, null=False)
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value = models.IntegerField()
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owner = models.ForeignKey(
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'Person', blank=True, null=True, on_delete=models.CASCADE)
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def __str__(self):
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return '%s %d' % (self.name, self.value)
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class Person(models.Model):
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name = models.CharField(max_length=16, blank=True, null=False)
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def __str__(self):
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return self.name
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class PersonForm(forms.ModelForm):
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class Meta:
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model = Person
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fields = {'name'}
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class SkillForm(forms.ModelForm):
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class Meta:
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model = Skill
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fields = {'name', 'value'}
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```
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**views.pyの一部**
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```python
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def edit(request, person_id):
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person = Person.objects.get(id=person_id)
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skills = Skill.objects.filter(owner=person)
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if request.method == 'POST':
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personform = PersonForm(request.POST, instance=person, prefix='person')
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skillforms = [SkillForm(request.POST, instance=skill,
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prefix=skill.name) for skill in skills]
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if personform.is_valid():
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for form in skillforms:
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if not form.is_valid():
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break
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form.save()
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else:
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return redirect('skill:home')
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else:
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personform = PersonForm(instance=person, prefix='person')
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skillforms = [SkillForm(instance=skill, prefix=skill.name)
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for skill in skills]
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return render(request, 'skill/skill.html', {'personform': personform,
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'skillforms': skillforms,
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'person_id': person.id})
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```
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**urls.pyの一部**
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```python
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urlpatterns = [
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path('edit/<int:person_id>', views.edit, name='edit'),
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]
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```
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**skill.html**
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```html
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<html>
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<body>
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<form action="{% url 'skill:edit' person_id %}" method="POST">
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<table>
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{{ personform.as_table }}
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{% for skillform in skillforms %}
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{{ skillform.as_table }}
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{%endfor%}
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</table>
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{% csrf_token %}
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<input type="submit" value="登録">
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</form>
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</body>
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</html>
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```
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[実行結果](bb61d10402fdbf79851b5118d7f47351.png)
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