質問編集履歴
4
文法の修正
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#blog/
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#blog/urls.py
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```python
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from django import
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from django.urls import path
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from . import views
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urlpatterns = [
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path('', views.post_list, name='post_list'),
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path('post/<int:pk>/post_form/', views.post_form, name='post_form'),
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class PostForm(forms.ModelForm):
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]
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model = Post
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fields = '__all__'
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{% for post in posts %}
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<form action="" method="POST">
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<form action="{% url 'post_form' pk=post.pk %}" method="POST">
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{% csrf_token %}
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if request.method == 'POST':
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post = get_object_or_404(Post, pk=pk)
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post.up_number += 1
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post.save()
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form.save()
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return render(request, 'blog/post_list')
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3
文法の修正
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test
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class Meta:
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model = Post
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fields = '__all__'
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if request.method == 'POST':
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form = PostForm(request.POST)
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if form.is_valid():
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up_number = int(form.cleaned_data['up_number']) + 1
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form.save()
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return redirect('/')
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post.up_number = int(post.cleaned_data['up_number']) + 1
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post.save()
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1
書式の改善
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test
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1
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### 前提・実現したいこと
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※ここに写真を載せていない分はDjango Girlsのチュートリアルと同じです。（ディレクトリも同様）
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Djangoでデータベースの更新を行いたいです。
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### 該当のソースコード
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#models.py
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#blog/models.py
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```python
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from django.conf import settings
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from django.db import models
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from django.utils import timezone
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class Post(models.Model):
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author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
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title = models.CharField(max_length=200)
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#このup_numberをどうにかしたい
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up_number = models.IntegerField(default=0)
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published_date = models.DateTimeField(blank=True, null=True)
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def publish(self):
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self.published_date = timezone.now()
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self.save()
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```
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-
#forms.py
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#blog/forms.py
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```python
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from django import forms
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from .models import Post
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class PostForm(forms.ModelForm):
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up_number = forms.IntegerField()
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```
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#blog/templates/blog/post_list.html
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```HTML
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{% for post in posts %}
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<form action="" method="POST">
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{% csrf_token %}
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<input type="submit" value="+1">
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</form>
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<div>
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<h5>{{ post.up_number }}</h5>
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</div>
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{% endfor %}
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```
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#blog/views.py
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```python
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from django.shortcuts import render
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from django.utils import timezone
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from .forms import PostForm
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from .models import Post
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def post_list(request):
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posts = Post.objects.filter(published_date__lte=timezone.now()).order_by('published_date')
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return render(request, 'blog/post_list.html', {'posts': posts})
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#分からないポイント
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def post_form(request):
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if request.method == 'POST':
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post.up_number = int(post.cleaned_data['up_number']) + 1
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post.save()
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```
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