CharField选择显示人类可读的价值

Question

我没什么问题.我有像Project和Member这样的模型.每个项目都有成员.在模板中,我想展示用户及其在特定项目中的角色.它有效,但它向我展示了角色的数量.我希望将人类可读的价值显示为"业务分析师"等我如何才能获得这些价值观？

models.py:

class Project(models.Model):
    members = models.ManyToManyField(User, through='Member', help_text=_('Members'))

class Member(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    project = models.ForeignKey(Project, on_delete=models.CASCADE)
    role = models.CharField(max_length=20, choices=ROLE_CHOICES)

ROLE_CHOICES = (
    ('1', _('Manager')),
    ('2', _('Developer')),
    ('3', _('Business Analyst')),
    ('4', _('System Analyst')),
)

模板:

{% for member  in project.member_set.all %}
    <tr>
        <td class="text-center">{{ member.user }}</td> <-- Example: Mark
        <td class="text-center">{{ member.role }}</td> <-- Example: 3 but I need Business Analyst
    </tr>
{% endfor %}

Answer 1

您可以在get_FOO_display上阅读更多内容.

 <td class="text-center">{{ member.get_role_display }}</td>