如何在 django 表单中添加登录用户名

Question

我只想将登录用户的用户名放在author字段中，同时将author字段指定为数据库中用户的用户名。

def create_vacation(request):
form = creationForm(request.POST or None)
vacations = Vacation.objects.all()
vacations.author=request.user.username
if form.is_valid():
form.save()
return redirect('/vacations/all')
return render(request, 'creationForm.html', {'form': form})

这是度假模型

class Vacation(models.Model):
vacationInformation = models.TextField()
startDate= models.DateTimeField('start date')
endDate = models.DateTimeField('end date')
author = models.ForeignKey(User, null=True, on_delete=models.SET_NULL)
def __str__(self):
return self. vacationInformation

这是表单模板

<form method="post" novalidate>
{% csrf_token %}
{% for hidden_field in form.hidden_fields %}
{{ hidden_field }}
{% endfor %}
{% if form.non_field_errors %}
<div class="alert alert-danger" role="alert">
{% for error in form.non_field_errors %}
{{ error }}
{% endfor %}
</div>
{% endif %}
{% for field in form.visible_fields %}
<div class="form-group">
{{ field.label_tag }}
{% if form.is_bound %}
{% if field.errors %}
{% render_field field class="form-control is-invalid" %}
{% for error in field.errors %}
<div class="invalid-feedback">
{{ error }}
</div>
{% endfor %}
{% else %}
{% render_field field class="form-control is-valid" %}
{% endif %}
{% else %}
{% render_field field class="form-control" %}
{% endif %}
{% if field.help_text %}
<small class="form-text text-muted">{{ field.help_text }}</small>
{% endif %}
{% if vacation %}
{% endif %}
</div>
{% endfor %}
<button type="submit" class="btn btn-primary">Submit</button>
</form>

我可以正常地在主页上呈现所有的假期数据，除了作者的名字

{% for vacation in vacations %}
<tr>
<td>{{ vacation.vacationInformation }}</td>
<td>{{ vacation.startDate }}</td>
<td>{{ vacation.endDate }}</td>
<td>{{ vacation.author }}</td>

它在表单的作者字段中给了我所有的用户名，但我只想要登录的用户

Answer 1

您需要获取当前登录的用户。然后，您可以使用用户在表单中填写初始值。

from django.contrib.auth import get_user
# ...
def create_vacation(request):
if request.method == 'POST':
form = creationForm(request.POST)
if form.is_valid():
form.save()
return redirect('/vacations/all')
else:
# Get the currently logged-in User.
user = get_user(request)
# Provide User as initial data to the form
form = creationForm(initial={'author': user})
return render(request, 'creationForm.html', {'form': form})

相关文件：

• ModelForm-提供初始值
• django.contrib.auth.get_user