通过按钮HTML更新模型值django（布尔字段）

Question

如何使用html按钮从models.py更改模型值，所以这是我的models.py和main.html

models.py

class Note(models.Model):
    topic = models.ForeignKey(Topic, null=True, on_delete=models.SET_NULL)
    notes = models.TextField(max_length=3000, null=True)
    title = models.CharField(max_length=200, null=True)
    clear = models.BooleanField(default=False)
    date_created = models.DateTimeField(auto_now_add=True, null=True)

main.html

<div class="col">
{% if note.clear %}
    <button class="btn btn-primary btn-sm btn-note">Unclear</button>
{% else %}
    <button class="btn btn-primary btn-sm btn-note">Clear</button>
{% endif %}
</div>

每次单击按钮"clear"时，我都希望将"btn-note"的值更改为true或false。

Answer 1

最简单的方法是：

views.py

def toggle_note_clear(request):
    note = get_object_or_404(Note, pk=request.GET.get('note_id'))
    note.clear = not note.clear
    note.save()
    return redirect('notes:detail') # you should change that with the name of your view

main.html

<div class="col">
   <!-- make sure you are using the correct name url here -->
   <a href="{% url 'notes:toggle_clear' %}?note_id={{note.pk}}"
      class="btn btn-primary btn-sm btn-note">
   {% if note.clear %}
     Unclear
   {%else%}
     Clear
   {%end%}
   </a>

</div>

别忘了用上面创建的新视图更新URL。