django模型和sqlite数据库创建错误 [英] django model and sqlite db creation bug

问题描述

我有以下模型。

from django.db import models

class Client(models.Model):
    postcode = models.CharField(max_length=10)  
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    address = models.TextField(blank=True)
    phone = models.IntegerField(blank=True)
    email = models.EmailField(blank=True)
    url = models.URLField(blank=True)
    client_since = models.DateTimeField('Client Since')

    def __unicode__(self):
        return self.first_name

def client_since(self):
    return self.client_since.date() == datetime.date.today()

class Contractor(models.Model):
   postcode = models.CharField(max_length=10)   
   first_name = models.CharField(max_length=100)
   last_name = models.CharField(max_length=100)
   address = models.TextField(blank=True)
   phone = models.IntegerField(blank=True)
   email = models.EmailField(blank=True)
   contractor_since = models.DateTimeField('Contractor Since')

   def __unicode__(self):
       return self.first_name

   def contractor_since(self):
       return self.contractor_since.date() == datetime.date.today()

我运行'python manage.py validate'给我-发现0错误

I run 'python manage.py validate' gives me - 0 errors found

然后我运行'python manage.py sql appname，然后看到表...

Then I run 'python manage.py sql "appname" and I get to see my tables...

BEGIN;
CREATE TABLE "schedule_client" (
    "id" integer NOT NULL PRIMARY KEY,
    "postcode" varchar(10) NOT NULL,
    "first_name" varchar(100) NOT NULL,
    "last_name" varchar(100) NOT NULL,
    "address" text NOT NULL,
    "phone" integer NOT NULL,
    "email" varchar(75) NOT NULL,
    "url" varchar(200) NOT NULL,
    "client_since" datetime NOT NULL
 )
 ;
 CREATE TABLE "schedule_contractor" (
     "id" integer NOT NULL PRIMARY KEY,
     "postcode" varchar(10) NOT NULL,
     "first_name" varchar(100) NOT NULL,
     "last_name" varchar(100) NOT NULL,
     "address" text NOT NULL,
     "phone" integer NOT NULL,
     "email" varchar(75) NOT NULL
 )
 ;
 COMMIT;

但是我看不到 contracor_since在承包商表中……正在创建db字段？ ？我试过几次，我在OS X Leopard上使用django 1.1.1。

But I don't see "contracor_since in the contractor table ... db field being created??? I tried several times, I am using django 1.1.1 on OS X leopard.

我在做什么错了？

推荐答案

您正在通过使用相同名称的函数定义来遮盖模型属性。请尝试更改函数名称或模型属性（ contractor_since ）。

You are shadowing the model attribute by a function definition using the same name. Try change either the function name or your model attribute (contractor_since).

这篇关于django模型和sqlite数据库创建错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！