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トップに関する質問Django：「IntegrityError at　＊＊＊＊＊」、「FOREIGN KEY constraint failed」エラーを解決したい。

編集履歴

質問編集履歴

3

情報追加

2020/06/28 09:05

投稿

退会済みユーザー
test CHANGED
File without changes
test CHANGED
@@ -61,111 +61,3 @@
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  return render(request, 'post/delete_done.html')
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  ```
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-
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-
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-
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- 新規投稿処理
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-
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- ```python
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-
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- class PostCreateView(CreateView):
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-
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- model = Post
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-
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- form_class = PostForm
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-
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- success_url = reverse_lazy('post:create_done')
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-
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-
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-
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- def form_valid(self, form):
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-
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- form.instance.user_id = self.request.user.id
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-
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- post = form.save()
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-
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- #return super(PostCreateView, self).form_valid(form)
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-
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- # 保存して編集を続けるボタン
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-
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- if 'save_and_edit' in self.request.POST:
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-
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- return redirect('post:post_update', pk=post.id)
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-
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- else:
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-
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- #return super(PostCreateView, self).form_valid(form)
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-
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- return redirect('post:create_done')
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-
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-
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-
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- def create_done(request):
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- return render(request, 'post/create_done.html')
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-
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- ```
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-
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-
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-
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- 投稿更新処理
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-
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- ```python
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-
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- class PostUpdateView(UpdateView):
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-
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- model = Post
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-
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- form_class = PostForm
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-
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- success_url = reverse_lazy('post:update_done')
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-
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-
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-
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- def form_valid(self, form):
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-
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- post = form.save()
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-
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- #form.instance.user_id = self.request.user.id
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-
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- # 保存して編集を続けるボタン
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-
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- if 'save_and_edit' in self.request.POST:
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-
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- return redirect('post:post_update', pk=post.id)
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-
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- else:
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-
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- #return super(PostUpdateView, self).form_valid(form)
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-
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- return redirect('post:update_done')
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-
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-
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-
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- def update_done(request):
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-
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- return render(request, 'post/update_done.html')
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-
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- ```
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-
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-
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-
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- ```python
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-
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- class Post(models.Model):
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-
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-
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-
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- def get_uuid_no_dash():
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-
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- return uuid.uuid4().hex
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-
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-
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-
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- id = models.SlugField(primary_key=True, default=get_uuid_no_dash, editable=False)
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-
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- user = models.ForeignKey(User, on_delete=models.CASCADE)
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-
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- title = models.CharField(verbose_name='タイトル', max_length=255)
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-
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- ```

2

情報追加

2020/06/28 09:04

投稿

退会済みユーザー
test CHANGED
File without changes
test CHANGED
@@ -147,3 +147,25 @@
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  return render(request, 'post/update_done.html')
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  ```
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+
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+
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+
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+ ```python
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+
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+ class Post(models.Model):
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+
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+
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+
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+ def get_uuid_no_dash():
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+
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+ return uuid.uuid4().hex
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+
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+
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+
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+ id = models.SlugField(primary_key=True, default=get_uuid_no_dash, editable=False)
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+
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+ user = models.ForeignKey(User, on_delete=models.CASCADE)
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+
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+ title = models.CharField(verbose_name='タイトル', max_length=255)
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+
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+ ```

1

情報の修正

2020/06/27 06:23

投稿

退会済みユーザー
test CHANGED
File without changes
test CHANGED
@@ -19,3 +19,131 @@
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  どなたかヒントをいただけないでしょうか？
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  必要な情報があれば追記いたします。
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+
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+
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+
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+ ユーザー削除の処理
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+
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+ ```python
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+
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+ class UserDeleteView(LoginRequiredMixin, generic.View):
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+
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+
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+
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+ def get(self, *args, **kwargs):
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+
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+ user = User.objects.get(email=self.request.user.email)
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+
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+ auth_logout(self.request)
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+
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+ user.delete()
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+
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+ return render(self.request,'user/delete_complete.html')
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+
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+ ```
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+
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+
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+
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+ 投稿削除処理
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+
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+ ```python
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+
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+ class PostDeleteView(DeleteView):
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+
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+ model = Post
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+
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+ success_url = reverse_lazy('post:delete_done')
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+
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+
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+
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+ def delete_done(request):
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+
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+ return render(request, 'post/delete_done.html')
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+
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+ ```
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+
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+
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+
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+ 新規投稿処理
68
+
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+ ```python
70
+
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+ class PostCreateView(CreateView):
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+
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+ model = Post
74
+
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+ form_class = PostForm
76
+
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+ success_url = reverse_lazy('post:create_done')
78
+
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+
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+
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+ def form_valid(self, form):
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+
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+ form.instance.user_id = self.request.user.id
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+
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+ post = form.save()
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+
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+ #return super(PostCreateView, self).form_valid(form)
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+
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+ # 保存して編集を続けるボタン
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+
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+ if 'save_and_edit' in self.request.POST:
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+
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+ return redirect('post:post_update', pk=post.id)
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+
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+ else:
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+
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+ #return super(PostCreateView, self).form_valid(form)
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+
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+ return redirect('post:create_done')
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+
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+
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+
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+ def create_done(request):
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+
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+ return render(request, 'post/create_done.html')
106
+
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+ ```
108
+
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+
110
+
111
+ 投稿更新処理
112
+
113
+ ```python
114
+
115
+ class PostUpdateView(UpdateView):
116
+
117
+ model = Post
118
+
119
+ form_class = PostForm
120
+
121
+ success_url = reverse_lazy('post:update_done')
122
+
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+
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+
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+ def form_valid(self, form):
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+
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+ post = form.save()
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+
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+ #form.instance.user_id = self.request.user.id
130
+
131
+ # 保存して編集を続けるボタン
132
+
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+ if 'save_and_edit' in self.request.POST:
134
+
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+ return redirect('post:post_update', pk=post.id)
136
+
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+ else:
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+
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+ #return super(PostUpdateView, self).form_valid(form)
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+
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+ return redirect('post:update_done')
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+
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+
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+
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+ def update_done(request):
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+
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+ return render(request, 'post/update_done.html')
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+
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+ ```