Django模型保存创建和修改

Question

我正在运行djando 1.8，我试图保存当前登录的用户在我的数据库中的字段创建和修改。我已经尝试了许多不同的组合，让这个工作，但我没有碰到任何运气。我必须将代码与硬编码工作的用户ID如下：

@python_2_unicode_compatible # only if you need to support Python 2 
class Project(models.Model): 
    name = models.CharField(max_length=50, verbose_name="Name") 
    jobNumber = models.CharField(max_length=8) 
    shopOut = models.DateTimeField(null=True) 
    shopIn = models.DateTimeField(null=True) 
    completion = models.DateTimeField(null=True) 
    installation_date = models.DateTimeField(null=True) 
    contractor = models.ForeignKey(Contractor, on_delete=models.CASCADE, default=101) 
    created_by = models.ForeignKey(User, related_name='Project_created_by') 
    created_date = models.DateTimeField(auto_now_add=True) 
    modified_by = models.ForeignKey(User, related_name='Project_modified_by') 
    modified_date = models.DateTimeField(auto_now=True) 
    assigned_to = models.ForeignKey(User, related_name='Project_assigned_to', default=1) 
    status = models.ForeignKey('Status', related_name='Project_status', default=1) 
    def __str__(self): 
     return self.name 
    def save(self, *args, **kwargs): 
     if not self.id: 
      self.created_by = User.objects.get(id=1) 
      #self.created_by = User.objects.get(id=kwargs['request'].user) 
      #self.created_by = User.objects.get(id=request.user) 
      self.modified_by = User.objects.get(id=1) 
      #self.modified_by = User.objects.get(id=kwargs['request'].user) 
      #self.modified_by = User.objects.get(id=request.user) 
      super(Project, self).save(*args, **kwargs) 
      year = datetime.datetime.now().year 
      self.jobNumber = '{}{:04d}'.format(year, self.id) 
     self.modified_by = User.objects.get(id=1) 
     #self.modified_by = User.objects.get(id=kwargs['request'].user) 
     #self.modified_by = User.objects.get(id=request.user) 
     super(Project, self).save(*args, **kwargs) 

如果我尝试任何注释掉的代码：

self.created_by = User.objects.get(id=kwargs['request'].user) 

或

self.created_by = User.objects.get(id=request.user) 

我得到的以下错误：

KeyError at /admin/project/project/add/ 'request'

或

NameError at /admin/project/project/add/ global name 'request' is not defined

再次我的问题是我如何保存当前登录的用户在我CREATED_BY和modified_by领域？

任何帮助将不胜感激！

Answer 1

搜索的更多一点，我发现在这之后post我跟着他们的大部分代码，但这里是我的：

这是我的应用程序文件夹结构：

MYAPP

• 项目
  • admin.py＃改变了这个
  • models.py＃changed thi小号
  • ...
• MYAPP
  • setting.py
  • url.py
  • ...

我的新admin.py

from django.contrib import admin 
from . import models 

class ProjectAdmin(admin.ModelAdmin): 
    fields = ('name', 'jobNumber', 'contractor', 'assigned_to', 'status') 
    def save_model(self, request, obj, form, change): 
     instance = form.save(commit=False) 
     if not hasattr(instance, 'created_by'): 
      instance.created_by = request.user 
     instance.modified_by = request.user 
     instance.save() 
     form.save_m2m() 
     return instance 

admin.site.register(models.Project,ProjectAdmin) 

models.py

import datetime 
from django.db import models 
from django.utils.encoding import python_2_unicode_compatible 
from django.contrib.auth.models import User 
from contractor.models import Contractor 

@python_2_unicode_compatible # only if you need to support Python 2 
class Project(models.Model): 
    name = models.CharField(max_length=50, verbose_name="Name") 
    jobNumber = models.CharField(max_length=8) 
    shopOut = models.DateTimeField(null=True) 
    shopIn = models.DateTimeField(null=True) 
    completion = models.DateTimeField(null=True) 
    installation_date = models.DateTimeField(null=True) 
    contractor = models.ForeignKey(Contractor, on_delete=models.CASCADE, default=101) 
    created_by = models.ForeignKey(User, related_name='Project_created_by') 
    created_date = models.DateTimeField(auto_now_add=True) 
    modified_by = models.ForeignKey(User, related_name='Project_modified_by') 
    modified_date = models.DateTimeField(auto_now=True) 
    assigned_to = models.ForeignKey(User, related_name='Project_assigned_to', default=1) 
    status = models.ForeignKey('Status', related_name='Project_status', default=1) 
    def __str__(self): 
     return self.name 
    def save(self, *args, **kwargs): 
     if not self.id: 
      super(Project, self).save(*args, **kwargs) 
      year = datetime.datetime.now().year 
      self.jobNumber = '{}{:04d}'.format(year, self.id) 
     super(Project, self).save(*args, **kwargs) 

我猜的伎俩正赶上在admin.py文件的请求。感谢solarissmoke的输入！