一个模板中的三个模型

Question

我是Django的新手，目前正在使用版本1.11和Python 3.6。我在一个模板中有三个模型。

模型1是我的自定义用户，它有一个名为formattedusername的主键。

模型2是我的访问列表，它应该与ntname上的User创建1对多的关系。 Model 2有一个名为report_id的引用表ReportList的外键。

模型3是我的报告列表，其中report_id为主键。

我尝试创建一个views.py来链接一个模板的所有三个表。在我的模板中，我想显示我的访问列表模型中列出的当前用户所有report_names。然后显示当前用户无权访问的所有可用报告，以便报告列表中的报告不存在于访问列表中。

For my views.py I tried several variations of the following:

def applicationdetail(request, ntname):
    user = get_object_or_404(User, pk=formattedusername)
    applicationlist = QvReportList.objects.all()
    applicationaccess = QVReportAccess.objects.filter(user=ntname)
    context = {'user' : request.user, 'applicationdetail' : applicationaccess}
    return render(request, 'accounts/profile.html', context=context)



class IndexView(User):
    context_object_name = 'profile_list'
    template_name = 'contacts/index.html'
    queryset = User.objects.all()

def get_context_data(self, **kwargs):
    context = super(IndexView, self).get_context_data(**kwargs)
    context['users'] = User.objects.filter(formattedusername=formattedusername)
    context['reportaccess'] = QVReportAccess.objects.filter(ntname=ntname)
    context['reportlist'] = QvReportList.objects.all()
    # And so on for more models
    return context

我的模板用于获取用户信息和当前访问权限我使用以下内容，但由于某种原因，我无法让应用程序返回数据库中存在的正确数据（report_name），为了下一步，我希望所有报告都不在reportaccess中：

{% extends 'base.html' %}

  {% block head %}
  <title> Profile </title>
  {% endblock %}

  {% block body %}
<div class = "container">


      <h2>{{ user.username }}</h2>
      <ul>
        <li>Email: {{ user.email }}</li>
        <li>Employee First Name: {{ user.first_name }}</li>
        <li>Employee Last Name: {{ user.last_name }}</li>
        <li>Coid: {{ user.coid }}</li>
        <li>Facility: {{ user.facility }}</li>
        <li>Job Description: {{ user.jobdescription }}</li>
        <li>Position Description: {{ user.positiondescription }}</li>
      </ul>


</div>

<div class = "container">


      <h2>Current Access Application List</h2>
      <ul>
        <li>Application Name: {% for app in applicationdetail %}
             <input type="checkbox" name="report_name" value="{{ app.report_name }}" /> {{ app.report_name }}<br />
        {% endfor %}
        </li>

      </ul>


</div>
  {% endblock %}

下面附有我使用graphviz的模型

以下是型号代码：

from __future__ import unicode_literals
from django.utils import timezone
from django.contrib.auth.models import (AbstractBaseUser,PermissionsMixin)
from django.db import models
from django.conf import settings
from django.forms import ModelForm


class User(AbstractBaseUser, PermissionsMixin):



    email = models.EmailField(unique=True)
    username = models.CharField(max_length=7, unique=True)
    formattedusername = models.CharField(max_length=11, unique=True, primary_key = True)
    first_name = models.CharField(max_length=40)
    last_name = models.CharField(max_length=140)
    date_joined = models.DateTimeField(default=timezone.now)
    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)
    facility = models.CharField(max_length=140)
    jobdescription = models.CharField(max_length=140)
    positiondescription = models.CharField(max_length=140)
    coid = models.CharField(max_length=5)
    streetaddress = models.CharField(max_length=140)



    USERNAME_FIELD = 'username'

    class Meta:
        app_label = 'accounts'
        db_table = "user"

    def save(self, *args, **kwargs):
        self.formattedusername = '{domain}\{username}'.format(
            domain='HCA', username=self.username)
        super(User, self).save(*args, **kwargs);


#    REQUIRED_FIELDS = "username"

    def __str__(self):
        return "@{}".format(self.username)


class QvReportList(models.Model):
    report_id = models.CharField(db_column='Report_ID',primary_key=True, max_length=100, serialize=False)  # Field name made lowercase.
    report_name = models.CharField(db_column='Report_Name', max_length=255, blank=True, null=True)  # Field name made lowercase.
    report_name_sc = models.CharField(db_column='Report_Name_SC', max_length=255, blank=True, null=True)  # Field name made lowercase.
    qv_filename = models.CharField(db_column='QV_FileName', max_length=255, blank=True, null=True)  # Field name made lowercase.
    report_access = models.CharField(db_column='Report_Access', max_length=20, blank=True, null=True)  # Field name made lowercase.
    report_group_id = models.IntegerField(db_column='Report_Group_ID', blank=True, null=True)  # Field name made lowercase.
    report_sub_group_id = models.IntegerField(db_column='Report_Sub_Group_ID', blank=True, null=True)  # Field name made lowercase.
    qv_dept_id = models.IntegerField(db_column='QV_Dept_ID', blank=True, null=True)  # Field name made lowercase.
    qv_dept_desc = models.CharField(db_column='QV_Dept_Desc', max_length=100, blank=True, null=True)  # Field name made lowercase.
    load_date = models.DateTimeField(db_column='Load_Date', blank=True, null=True)  # Field name made lowercase.
    approver_fname = models.CharField(db_column='Approver_FName', max_length=255, blank=True, null=True)  # Field name made lowercase.
    approver_lname = models.CharField(db_column='Approver_LName', max_length=255, blank=True, null=True)  # Field name made lowercase.
    approver_ntname = models.CharField(db_column='Approver_NTName', max_length=255, blank=True, null=True)  # Field name made lowercase.
    beg_date = models.DateTimeField(db_column='Beg_Date', blank=True, null=True)  # Field name made lowercase.
    end_date = models.DateTimeField(db_column='End_Date', blank=True, null=True)  # Field name made lowercase.
    active = models.IntegerField(db_column='Active', blank=True, null=True)  # Field name made lowercase.
    approval_id = models.IntegerField(db_column='Approval_ID', blank=True, null=True)  # Field name made lowercase.
    role_based_id = models.IntegerField(db_column='Role_Based_ID', blank=True, null=True)  # Field name made lowercase.

    class Meta:
        managed = False
        db_table = 'QV_Report_List'


class QVReportAccess(models.Model):
    user_status = models.CharField(db_column='User_Status', max_length = 20)  # Field name made lowercase.
    ntname = models.OneToOneField(User,db_column='NTName', max_length=7,primary_key=True, serialize=False)  # Field name made lowercase.
    report_name = models.CharField(db_column='Report_Name', max_length=50, blank=True, null=True)  # Field name made lowercase.
    report_name_sc = models.CharField(db_column='Report_Name_SC', max_length=30, blank=True, null=True)  # Field name made lowercase.
    datareduce_report_code = models.IntegerField(db_column='DataReduce_Report_Code', blank=True, null=True)  # Field name made lowercase.
    role_based_id = models.IntegerField(db_column='Role_Based_ID', blank=True, null=True)  # Field name made lowercase.
    report_id = models.OneToOneField(QvReportList,db_column='Report_ID', max_length=100, blank=True, null=True)  # Field name made lowercase.
    report_group_id = models.IntegerField(db_column='Report_Group_ID', blank=True, null=True)  # Field name made lowercase.
    report_access = models.CharField(db_column='Report_Access', max_length=50, blank=True, null=True)  # Field name made lowercase.
    sr_datareduce_summary_code = models.CharField(db_column='SR_DataReduce_Summary_Code', max_length=10, blank=True, null=True)  # Field name made lowercase.
    sr_datareduce_patient_code = models.CharField(db_column='SR_DataReduce_Patient_Code', max_length=10, blank=True, null=True)  # Field name made lowercase.
    userid = models.IntegerField(db_column='UserID', blank=True, null=True)  # Field name made lowercase.
    user_group_id = models.IntegerField(db_column='User_Group_ID', blank=True, null=True)  # Field name made lowercase.
    access_level_id = models.IntegerField(db_column='Active', blank=True, null=True)
    active = models.IntegerField(db_column='Access_Level_ID', blank=True, null=True)
    qv_statusid = models.IntegerField(db_column='QV_StatusID', blank=True, null=True)
    employee_status_id = models.IntegerField(db_column='Employee_Status_ID', blank = True, null = True)
    new_user = models.IntegerField(db_column='New_User', blank = True, null = True)
    new_access = models.IntegerField(db_column='New_Access', blank = True, null = True)
    new_report = models.IntegerField(db_column='New_Report', blank = True, null = True)
    changed_row = models.IntegerField(db_column='Changed_Row',blank = True, null = True)
    last_changed_date = models.DateTimeField(db_column='Last_Changed_Date', blank=True, null=True)  # Field name made lowercase.
    access_beg_date = models.DateTimeField(db_column='Access_Beg_Date', blank=True, null=True)  # Field name made lowercase.
    access_end_date = models.DateTimeField(db_column='Access_End_Date', blank=True, null=True)  # Field name made lowercase.
    report_beg_date = models.DateTimeField(db_column='Report_Beg_Date', blank=True, null=True)  # Field name made lowercase.
    report_end_date = models.DateTimeField(db_column='Report_End_Date', blank=True, null=True)  # Field name made lowercase.
    qv_startdate = models.DateTimeField(db_column='QV_StartDate', blank=True, null=True)  # Field name made lowercase.
    load_date = models.DateTimeField(db_column='Load_Date', blank=True, null=True)  # Field name made lowercase.

class Meta:
    managed = False
    db_table = 'QV_ReportAccess'

Answer 1

问题是由于我的格式化用户名未定义。 L. Long的回应有助于澄清这个问题。