Question

我的模型定义为：

class NModels(models.Model):
    model_name=models.TextField(max_length=30, default='DEFVAL')

class ModelRun(models.Model):
    currmodel= models.ForeignKey(NModels)
    run_name = models.TextField(max_length=20)

class ModelRegion(models.Model):
    model_run = models.ForeignKey(ModelRun)
    region = models.TextField(max_length=20)

class ModelImages(models.Model):
    model_region = models.ForeignKey(ModelRegion)
    map_type = models.TextField(max_length=20)
    map_path = models.TextField(max_length=100)

当我提交表单时，调试返回：

Exception Value: column "model_name" of relation "wxpoint_nmodels" does not exist
LINE 1: INSERT INTO "wxpoint_nmodels" ("model_name") VALUES ('GFS')

在我的views.py中：

def model_page(request):
    if request.method =='POST':
        new_model_image = request.POST['GFS']
        gfsmodel = NModels.objects.create(model_name=new_model_image)
        currentmodelrun = ModelRun.objects.create(currmodel=gfsmodel, run_name='gfs00z')
        currentmodelregion = ModelRegion.objects.create(model_run=currentmodelrun, region='USA')
        myimage = ModelImages.objects.create(model_region=currentmodelregion, map_type="temps", 
            map_path='images/GFS2mt12z.gif', timestep="00hr")
        return render(request, 'models.html', {'new_model_image': myimage.map_path, })
    return render(request, 'models.html')

当我运行单元测试时，一切正常，所以我不确定为什么我会收到此错误。

我已经完成python3 manage.py进行迁移，迁移，syncdb仍然得到相同的错误。在psql中，\ l显示了我的应用程序的数据库，尽管\ d不返回找到的关系。

编辑：

python3 manage.py showmigrations yield：

admin
 [X] 0001_initial
auth
 [X] 0001_initial
 [X] 0002_alter_permission_name_max_length
 [X] 0003_alter_user_email_max_length
 [X] 0004_alter_user_username_opts
 [X] 0005_alter_user_last_login_null
 [X] 0006_require_contenttypes_0002
contenttypes
 [X] 0001_initial
 [X] 0002_remove_content_type_name
sessions
 [X] 0001_initial
wxpoint
 [X] 0001_initial
 [X] 0002_modelrun
 [X] 0003_modelregion
 [X] 0004_modelimages
 [X] 0005_auto_20150611_0341

EDIT2：运行python3 manage.py dbshell然后\d+ wxpoint_nmodels：

Column |  Type   |                          Modifiers                           | Storage | Stats target | Description 
--------+---------+--------------------------------------------------------------+---------+--------------+-------------
 id     | integer | not null default nextval('wxpoint_nmodels_id_seq'::regclass) | plain   |              |

Django＆amp; Postgres：关系的ProgammerError列不存在

0 个答案: