ForeignKey的上Tastypie REST - 模型「」有一個空的屬性

Question

我需要列出每個員工的工作時間，但我發現：

模型「」有一個空的屬性「work_journey」和不允許空值。

上：

/休息/ tastypie /僱員/格式= JSON

models.py

class Employee(): 
    registration = models.CharField(u'Registration', max_length=20, unique=True) 
    work_journey = models.ForeignKey(WorkJourney, null=True, blank=True) 

hr.models.py

class WorkJourney(ModelPlus): 
    code = models.CharField(max_length=10, null=True, unique=True) 
    workinghours = models.CharField(max_length=40) 
    excluded = models.BooleanField() 

    class Meta: 
     db_table='work_journey' 
     verbose_name = u'Work Journey' 

    def __unicode__(self): 
     return self.workinghours 

resources.py

from suap.models import Employee 
from hr.models import WorkJourney 


class WorkJourneyResource(ModelResource): 
    class Meta: 
     queryset = WorkJourney.objects.all() 
     resource_name = 'work_journey' 
     authentication = BasicAuthentication() 

class EmployeeResource(ModelResource): 
    journey = fields.ForeignKey(WorkJourney, 'work_journey') 
    class Meta: 
     queryset = Employee.objects.all() 
     resource_name = 'employee' 
     authentication = BasicAuthentication() 

Answer 1

1 /你需要一個WorkJourneyResource而不是WorkJourney當你定義在ressoure.py你們的關係

2 /允許空值，只需添加null=True, blank=True

這裏是代碼固定：

class EmployeeResource(ModelResource): 
    journey = fields.ForeignKey(WorkJourneyResource, 'work_journey', null=True, blank=True) 
    ....