Django：如何将 DateField 设置为仅接受“今天”和“今天”未来日期

发布于 2024-10-16 16:54:42 字数 226 浏览 2 评论 0原文

我一直在寻找方法将 Django 表单设置为仅接受今天或未来几天的日期。我目前在前端有一个 jQuery 日期选择器，但这里是模型表单的表单字段。

感谢您的帮助，非常感谢。

date = forms.DateField(
    label=_("What day?"),
    widget=forms.TextInput(),
    required=True)

原文

I have been looking for ways to set my Django form to only accept dates that are today or days in the future. I currently have a jQuery datepicker on the frontend, but here is the form field to a modelform.

Thanks for the help, much appreciated.

date = forms.DateField(
    label=_("What day?"),
    widget=forms.TextInput(),
    required=True)

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依靠 2024-10-23 16:54:43

您可以在表单中添加 clean() 方法以确保日期不是过去的日期。

import datetime

class MyForm(forms.Form):
    date = forms.DateField(...)

    def clean_date(self):
        date = self.cleaned_data['date']
        if date < datetime.date.today():
            raise forms.ValidationError("The date cannot be in the past!")
        return date

请参阅http://docs.djangoproject.com/en/ dev/ref/forms/validation/#cleaning-a-specific-field-attribute

You could add a clean() method in your form to ensure that the date is not in the past.

import datetime

class MyForm(forms.Form):
    date = forms.DateField(...)

    def clean_date(self):
        date = self.cleaned_data['date']
        if date < datetime.date.today():
            raise forms.ValidationError("The date cannot be in the past!")
        return date

See http://docs.djangoproject.com/en/dev/ref/forms/validation/#cleaning-a-specific-field-attribute

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硪扪都還晓 2024-10-23 16:54:43

另一个有用的解决方案是使用 validators 关键字参数将验证与字段联系起来。这是保持表单代码清晰并允许重用验证逻辑的便捷方法。例如

def present_or_future_date(value):
    if value < datetime.date.today():
        raise forms.ValidationError("The date cannot be in the past!")
    return value

class MyForm(forms.Form):
    date = forms.DateField(...
                           validators=[present_or_future_date])

Another useful solution is to tie validation to fields using the validators keyword argument. This is a handy way of keeping your Form code clear and enabling reuse of validation logic. For e.g

def present_or_future_date(value):
    if value < datetime.date.today():
        raise forms.ValidationError("The date cannot be in the past!")
    return value

class MyForm(forms.Form):
    date = forms.DateField(...
                           validators=[present_or_future_date])

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时光磨忆 2024-10-23 16:54:43

发现 MinValueValidator 也非常适合日期。

import datetime
from django.core.validators import MinValueValidator
from django.db import models

...

some_date = models.DateField(validators=[MinValueValidator(datetime.date.today)])

Found out MinValueValidator works perfectly for dates as well.

import datetime
from django.core.validators import MinValueValidator
from django.db import models

...

some_date = models.DateField(validators=[MinValueValidator(datetime.date.today)])

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