並不只有兩個元素

Question

我正在啓動python和django。 我想製作和「添加」頁面以將數據添加到sqlite3。

1. #my admin.py file 
2. from django.contrib import admin 
3. from jobs.models import Location 
4. from jobs.models import Job 
5. 
6. class JobAdmin(admin.ModelAdmin): 
7.  fieldsets = [(None, {'fields': ['pub_date']}, 
8.       {'fields': ['job_title']}, 
9.       {'fields': ['job_description']},) 
10. #  ('More info', {'fields': ['location']},) 
12. ] 
13. 
14. class LocationAdmin(admin.ModelAdmin): 
15.  list_display = ('city', 'state', 'country') 
16. 
17. admin.site.register(Job,JobAdmin) 
18. admin.site.register(Location, LocationAdmin) 

如果我取消註釋第10行，則出現錯誤。

Exception Type:  TypeError 
Exception Value:  'tuple' object is not callable 
Exception Location: /home/python/djproject/jobs/admin.py in JobAdmin, line 10 

如果我評論第10行，就像上面那樣有錯誤。

Exception Type:  ImproperlyConfigured 
Exception Value: 'JobAdmin.fieldsets[0]' does not have exactly two elements. 
Exception Location: /usr/lib/python2.6/site-packages/django/contrib/admin/validation.py in validate_base, line 291 

fields'location'是一個外鍵。數據庫中Job的字段中沒有數據，我想創建一個添加頁面以將數據插入數據庫。 和我的models.py是：

#my models.py 
from django.db import models 

class Location(models.Model): 
    city = models.CharField(max_length=50) 
    state = models.CharField(max_length=50, null=True, blank=True) 
    country = models.CharField(max_length=50) 

    def __str__(self): 
     if self.state: 
      return "%s, %s, %s" % (self.city, self.state, self.country) 
     else: 
      return "%s, %s" % (self.city, self.country) 

class Job(models.Model): 
    pub_date = models.DateField() 
    job_title = models.CharField(max_length=50) 
    job_description = models.TextField() 
    location = models.ForeignKey(Location) 

    def __str__(self): 
     return "%s (%s)" % (self.job_title, self.location) 

我不知道該怎麼做，任何一個可以給我一些參考或建議？ thx爲你的時間。

Answer 1

如果您需要取消註釋該行，那麼您需要在該行之前添加逗號,。

class JobAdmin(admin.ModelAdmin): 
fieldsets = [(None, {'fields': ['pub_date']}, 
        {'fields': ['job_title']}, 
        {'fields': ['job_description']},), 
    ('More info', {'fields': ['location']},) 
] 

Answer 2

有

缺少 '' 以線＃9.