如何从django的charfield结尾处去除空白(trim)?
这是我的模型,正如你所看到的,我尝试过使用干净的方法,但这些方法永远不会运行。
我也试过这样做,但这些都不起作用。
有没有办法强迫charfield自动为我修剪?
谢谢。
from django.db import models
from django.forms import ModelForm
from django.core.exceptions import ValidationError
import datetime
class Employee(models.Model):
"""(Workers, Staff, etc)"""
name = models.CharField(blank=True, null=True, max_length=100)
def save(self, *args, **kwargs):
try:
# This line doesn't do anything??
#self.full_clean()
Employee.clean(self)
except ValidationError, e:
print e.message_dict
super(Employee, self).save(*args, **kwargs) # Real save
# If I uncomment this, I get an TypeError: unsubscriptable object
#def clean(self):
# return self.clean['name'].strip()
def __unicode__(self):
return self.name
class Meta:
verbose_name_plural = 'Employees'
class Admin:pass
class EmployeeForm(ModelForm):
class Meta:
model = Employee
# I have no idea if this method is being called or not
def full_clean(self):
return super(Employee), self.clean().strip()
#return self.clean['name'].strip()
已编辑:已将代码更新为我的最新版本。我不确定我做错了什么,因为它仍然没有去除空白(修剪)名称字段。
最佳答案
必须调用模型清理(它不是自动的),所以在保存方法中放置一些self.full_clean()
。
http://docs.djangoproject.com/en/dev/ref/models/instances/#django.db.models.Model.full_clean
对于表单,您需要返回已清除的数据。
return self.cleaned_data['name'].strip()
不知怎么的,我觉得你只是想做一些不起作用的事情。记住,形式和模型是两个非常不同的东西。
检查表单文档,了解如何验证表单
http://docs.djangoproject.com/en/dev/ref/forms/validation/
super(Employee), self.clean().strip() makes no sense at all!
这是您的代码修复:
class Employee(models.Model):
"""(Workers, Staff, etc)"""
name = models.CharField(blank=True, null=True, max_length=100)
def save(self, *args, **kwargs):
self.full_clean() # performs regular validation then clean()
super(Employee, self).save(*args, **kwargs)
def clean(self):
"""
Custom validation (read docs)
PS: why do you have null=True on charfield?
we could avoid the check for name
"""
if self.name:
self.name = self.name.strip()
class EmployeeForm(ModelForm):
class Meta:
model = Employee
def clean_name(self):
"""
If somebody enters into this form ' hello ',
the extra whitespace will be stripped.
"""
return self.cleaned_data.get('name', '').strip()
关于python - (Django)修剪charField的空格,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/5043012/