Django 模型保存创建者和修改者

Question

我正在运行 django 1.8，我试图将当前登录的用户保存在数据库中的创建者和修改者字段中。我尝试了许多不同的组合来使其发挥作用，但我没有遇到任何运气。我必须在用户 ID 中使用硬编码进行编码，如下所示:

@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)

如果我尝试注释掉任何代码:

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

或

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

我收到以下错误:

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

或

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

我的问题再次是如何在created_by和modified_by字段中保存当前登录的用户？

任何帮助将不胜感激!

Answer 1

经过更多搜索后，我发现了这个 post 我遵循了他们的大部分代码，但这是我的:

这是我的应用程序文件夹结构:

我的应用程序

• 项目
  • admin.py # 更改了此内容
  • models.py # 更改了此内容
  • ...
• 我的应用程序
  • 设置.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)

模型.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)

我猜诀窍是在 admin.py 文件中捕获请求。感谢 Solarissmoke 的投入!