Python Tastypie发送POST以更新外键

我最近开始使用Django（通常是python！），我希望使用Tastypie来自动添加到我的数据库中

对于我当前的问题，我的数据库中有两个表，一个显示公司名称和公司ID，另一个保存所有许可证密钥信息，如下所示：

型号.py

class Company(models.Model):
    company_name = models.CharField(max_length=200, verbose_name= "Company Name")
    company_id = models.CharField(max_length=15, verbose_name= "Company ID")

    def __str__(self):
        return self.company_name


class Licence(models.Model):
    company_id = models.ForeignKey(Company, on_delete=models.CASCADE, verbose_name= "Company ID")
    licence_key = models.CharField(max_length=100, verbose_name= "Licence Key")
    lpars = models.CharField(max_length=100, default = "", verbose_name= "List of Systems")
    rss = models.BooleanField(default = None, verbose_name= "RSS")
    gui = models.BooleanField(default = None, verbose_name= "RACFGui")
    exr = models.BooleanField(default = None, verbose_name= "Exception Reporter")
    zdt = models.BooleanField(default = None, verbose_name= "zDetect")
    bg = models.BooleanField(default = None, verbose_name= "BreakGlass")
    sspr = models.BooleanField(default = None, verbose_name= "Self Service Password Reset")
    rss_custom = models.BooleanField(default = None, verbose_name= "RSS Custom")
    expiry = models.DateField(auto_now=False, auto_now_add=False)
    trial = models.BooleanField(default = False, verbose_name= "Trial?")

    def __str__(self):
        return self.licence_key

class CompanyResource(ModelResource):
    class Meta:
        queryset = Company.objects.all()
        resource_name = 'company'

class LicenceResource(ModelResource):

    class Meta:
        queryset = Licence.objects.all()
        include_resource_uri = True
        resource_name = 'licence'
        authorization = Authorization()
    def dehydrate(self, bundle):
        bundle.data['company'] = bundle.obj.company_id
        return bundle

然后我在这里定义了所有api内容：

resources.py

class Company(models.Model):
    company_name = models.CharField(max_length=200, verbose_name= "Company Name")
    company_id = models.CharField(max_length=15, verbose_name= "Company ID")

    def __str__(self):
        return self.company_name


class Licence(models.Model):
    company_id = models.ForeignKey(Company, on_delete=models.CASCADE, verbose_name= "Company ID")
    licence_key = models.CharField(max_length=100, verbose_name= "Licence Key")
    lpars = models.CharField(max_length=100, default = "", verbose_name= "List of Systems")
    rss = models.BooleanField(default = None, verbose_name= "RSS")
    gui = models.BooleanField(default = None, verbose_name= "RACFGui")
    exr = models.BooleanField(default = None, verbose_name= "Exception Reporter")
    zdt = models.BooleanField(default = None, verbose_name= "zDetect")
    bg = models.BooleanField(default = None, verbose_name= "BreakGlass")
    sspr = models.BooleanField(default = None, verbose_name= "Self Service Password Reset")
    rss_custom = models.BooleanField(default = None, verbose_name= "RSS Custom")
    expiry = models.DateField(auto_now=False, auto_now_add=False)
    trial = models.BooleanField(default = False, verbose_name= "Trial?")

    def __str__(self):
        return self.licence_key

class CompanyResource(ModelResource):
    class Meta:
        queryset = Company.objects.all()
        resource_name = 'company'

class LicenceResource(ModelResource):

    class Meta:
        queryset = Licence.objects.all()
        include_resource_uri = True
        resource_name = 'licence'
        authorization = Authorization()
    def dehydrate(self, bundle):
        bundle.data['company'] = bundle.obj.company_id
        return bundle

这在我发出GET请求时非常有效，并显示以下信息：

{
"bg": false,
"company": "xxxx", (blanked out for security)
"expiry": "2018-05-11",
"exr": true,
"gui": false,
"id": 13,
"licence_key": "xxxxx-xxxxx-xxxxx",
"lpars": "xxxx xxxx",
"resource_uri": "/api/licence/13/",
"rss": true,
"rss_custom": true,
"sspr": false,
"trial": false,
"zdt": true

}

然而，当我尝试用

POST请求复制此内容时，我得到

“错误\u消息”：“非空约束失败：许可证\u许可证。公司\u id\u id”

我知道我没有在POST请求中提交此值，但我假设
\u id
是数据库条目的id，它通常由Django自动管理

如果省略，有没有办法让Django来管理它，或者有没有更聪明的方法来格式化POST请求

非常感谢您的时间！这是我在SO上的第一篇帖子，如果我遗漏了什么，请告诉我：）
我不知道Tastypie（Django Rest框架是这类事情的常用工具），但在我看来，您定义了一个
deterheate
方法来指定公司字段的输出方式，也许你需要一个
hydrome
方法来指定相反的方向？确实，请参阅上的文档。@DanielRoseman非常感谢！我必须退房——同时感谢您的指导：）