Question

您好我正在尝试实施一个分析系统，以便一旦用户登录，就会识别学生并从学生模型中提取信息并将其返回到主页，并可能返回系统中的每个其他页面。它还会将学生用户名附加到URL的末尾....希望

我收到此错误：

profile（）缺少1个必需的位置参数：＆＃39;用户名＆＃39;

Urls.py

    # student urls.py
    # Import urls and patterns aswell as student views
    from django.conf.urls import patterns, url
    from student import views

    urlpatterns = patterns('',
    url(r'^(?P<username>[a-zA-Z0-9]+)$', views.index, name='index'),
    url(r'^$', views.profile, name='profile'))

Models.py

    # student models.py
    # Import the models db and validators
    # Also import user information for log in identification
    from django.db import models
    from django.core.validators import *
    from django.contrib.auth.models import User 

    # Specify attributes for the student database
    class student(models.Model):
    # Specify choices for years, gender and degree type
    YEARS = (
    ('1', '1st'),
    ('2', '2nd'),
    ('3', '3rd'),
    )
    GENDER = (
    ('M', 'Male'),
    ('F', 'Female'),
    )
    DEGREE = (
    ('IT', 'Information Technology'),
    ('CS', 'Computer Science'),
    )

    # Attributes for the student model specified here
    user = models.OneToOneField(User)
    student_ID = models.CharField(unique=True, max_length=9, validators=[RegexValidator(regex='^[0-9]{9,9}$', message='Must be 9 unique numbers', code='nomatch')])
    first_name = models.CharField(max_length=128)
    middle_name = models.CharField(max_length=128)
    last_name = models.CharField(max_length=128)
    gender = models.CharField(max_length=1, choices=GENDER)
    year = models.CharField(max_length=1, choices=YEARS)
    degree = models.CharField(max_length=2, choices=DEGREE)
    photo = models.ImageField(upload_to="profile_pictures", null=True, blank=True)

    def __str__(self):
            return self.student_ID

Views.py

    # student views.py
    # Import rendering and httpresponse
    # Also import student model
    from django.shortcuts import render
    from django.http import HttpResponse
    from student.models import student
    from extra_curricular.models import extra_curricular
    from module.models import module
    from skill.models import skill
    from django.contrib.auth.models import User

    # Information box displayed on each page  
    def index(request, username):
        user = User.objects.get(username=username)
        person = student.objects.get(user=user)
        return render(request, 'student/home.html', {"person":person})

    #Profile page information
    def profile(request, username):
         user = User.objects.get(username=username)
         person = student.objects.get(user=user)
         experience = extra_curricular.objects.get(user=user)
         module = module.objects.get(user=user)
         skill = skill.objects.get(user=user)
         return render(request, 'student/profile.html', {"person":person}, {"experience":experience}, {"module":module}, {"skill":skill})

Home.html中

        {% block content %}
    <div class = "StudentInfoMain">


    </div>
    <div id="Options">
        <ul>
            <li><a href="/student/">Home</a></li>
            <li><a href="/extra_curricular/add_extra_curricular/">Add Information</a></li>
            <li><a href="#">View User Profile</a></li>
            <li><a href="#">Checklist</a></li>
            <li><a href="/skill/add_skill/">My Skills</a></li>
            <li><a href="/alumni/Find_Alumni/">Contact Alumni</a></li>
        </ul>
    </div>
    <div class = "Homebanner">
        <p>{{ user.username }}</p>
        <p>{{ person.student_ID }}</p>
        <p>{{ person.first_name}}</p>
        <p>{{ person.last_name }}</p>
        <p>{{ person.year }}</p>
        <p>{{ person.degree }}</p>

    </div>
    <div id = "Homebody">
    <p>Hello {{person.first_name}</p>
    <p>Welcome to your E-Profile</p>
    <br>
    <p>This application is intended as an aid to you during your employment endeavours.</p>
    <p>It can be used during the process of building a curriculum vitae</p>
    <p>You may add information of experiences you have had during your educational career</p>
    <br>
    <p>For any further information: </p>
    <br>


    </div>


    <footer>

    </footer>
    {% endblock %}

Answer 1

def profile(request, username):

views.profile会带有一个额外的参数以及您尚未传递的请求。

url(r'^$', views.profile, name='profile')

Answer 2

您的profile视图需要username参数，但您的网址结构并未对其进行定义。改变行

url(r'^$', views.profile, name='profile'))

类似

url(r'^profile/(?P<username>[\w\d]+)/$', views.profile, name='profile'))

添加了开头的profile部分，以区别于您的index网址。

Python方法创新，缺少参数

2 个答案: