Django表单域清理以检查输入的日期是否在存储的范围内 [英] Django form field clean to check if entered date is in a stored range
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问题描述
所以我试图写一个表单干净的方法,以确保输入的一对日期目前不在模型中存储的日期范围内。想要捕获 fromdate> = value< = todate
,但是我的清洁方法中的过滤器之间的没有得到
任何人都可以提供一些启示?
Models.py
class Dates(models.Model):
fromdate = models.DateField()
todate = models.DateField()
Forms.py
class Form(forms.Form):
fromdate = forms.DateField()
todate = forms.DateField()
class Meta:
model = Dates
def clean_fromdate(self):
form_fromdate = self.cleaned_data.get('fromdate')
exists = Dates.objects.filter(fromdate__contains = form_fromdate).exists()
如果存在== True:
ra ise forms.ValidationError(_(A date has been entered for this date))
between = Dates.objects.filter(fromdate__gte = form_fromdate,
todate__lte = form_fromdate).exists( )
如果between == True:
raise forms.ValidationError(_(Period is between this date 1))
return form_fromdate
def clean_todate(self):
form_todate = self.cleaned_data.get('todate')
exists = Dates.objects.filter(todate__contains = form_todate).exists()
if exists == True:
raise forms.ValidationError(_(A period is already entered for this date))
between = PeriodsOfInactivity2012.objects.filter(fromdate__gte = form_todate,
todate__lte = form_todate).exists()
如果between == True:
raise forms.ValidationError(_(此时间已经在此日期之间2)
返回form_todate
解决方案
这应该适合你
从django导入表单
从模型导入日期
类Form(forms.ModelForm):
fromdate = forms.DateField()
todate = forms.DateField()
class Meta:
model = Dates
def clean(self):
form_fromdate = self.cleaned_data。 get('fromdate')
form_todate = self.cleaned_data.get('todate')
between = Dates.objects.filter(fromdate__gte = form_fromdate,todate__lte = form_todate).exists()
如果之间:
raise forms.ValidationError(此日期之间的时间)
super(Form,self).clean()
编辑
#views.py
#!/ usr / bin / env python
# - * - 编码:utf-8 - * -
from django.http import HttpResponse
从django.template导入RequestContex t
from django.shortcuts import render_to_response
from forms import Form
def index(request,template ='index.html'):
form = form()
如果request.method ==POST:
form = Form(request.POST)
如果form.is_valid():
返回HttpResponse(form)
kwvars = {
form:form,
}
return render_to_response(template,kwvars,context_instance = RequestContext(request))
#forms.py
从django导入表单
从模型导入日期
类Form(forms.ModelForm):
fromdate = forms.DateField()
todate = forms.DateField )
class Meta:
model = Dates
def clean(self):
form_fromdate = self.cleaned_data.get('fromdate')
form_todate = self.cleaned_data.get('todate')
between = Dates.objects.filter(fromdate__gte = f orm_fromdate,todate__lte = form_todate).exists()
如果之间:
raise forms.ValidationError(此时间已经在此日期1之间)
super(Form,self).clean()
#index .html
< html>
< head>
< / head>
< body>
< form action =method =POST>
{%csrf_token%}
{%if form.errors%}
errors:{{form.errors}}
{%endif%}
{{form }}
< input type =submitvalue =submit>
< / form>
< / body>
< / html>
I'm trying to write a form clean method to ensure that an entered pair of dates is not currently covered by date ranges stored in the model.
So I want to catch fromdate >= value <= todate
but the between
filters in my clean methods aren't getting it.
Can anyone offer some enlightenment?
Models.py
class Dates(models.Model):
fromdate = models.DateField()
todate = models.DateField()
Forms.py
class Form(forms.Form):
fromdate = forms.DateField()
todate = forms.DateField()
class Meta:
model = Dates
def clean_fromdate(self):
form_fromdate = self.cleaned_data.get('fromdate')
exists = Dates.objects.filter(fromdate__contains=form_fromdate).exists()
if exists == True:
raise forms.ValidationError(_("A period is already entered for this date"))
between = Dates.objects.filter(fromdate__gte=form_fromdate,
todate__lte=form_fromdate).exists()
if between == True:
raise forms.ValidationError(_("Period already between this date 1"))
return form_fromdate
def clean_todate(self):
form_todate = self.cleaned_data.get('todate')
exists = Dates.objects.filter(todate__contains=form_todate).exists()
if exists == True:
raise forms.ValidationError(_("A period is already entered for this date"))
between = PeriodsOfInactivity2012.objects.filter(fromdate__gte=form_todate,
todate__lte=form_todate).exists()
if between == True:
raise forms.ValidationError(_("Period already between this date 2"))
return form_todate
解决方案
This should work for you
from django import forms
from models import Dates
class Form(forms.ModelForm):
fromdate = forms.DateField()
todate = forms.DateField()
class Meta:
model = Dates
def clean(self):
form_fromdate = self.cleaned_data.get('fromdate')
form_todate = self.cleaned_data.get('todate')
between = Dates.objects.filter(fromdate__gte=form_fromdate, todate__lte=form_todate).exists()
if between:
raise forms.ValidationError("Period already between this dates")
super(Form, self).clean()
EDIT
#views.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from django.http import HttpResponse
from django.template import RequestContext
from django.shortcuts import render_to_response
from forms import Form
def index(request, template='index.html'):
form = Form()
if request.method == "POST":
form = Form(request.POST)
if form.is_valid():
return HttpResponse(form)
kwvars = {
"form": form,
}
return render_to_response(template, kwvars, context_instance=RequestContext(request))
#forms.py
from django import forms
from models import Dates
class Form(forms.ModelForm):
fromdate = forms.DateField()
todate = forms.DateField()
class Meta:
model = Dates
def clean(self):
form_fromdate = self.cleaned_data.get('fromdate')
form_todate = self.cleaned_data.get('todate')
between = Dates.objects.filter(fromdate__gte=form_fromdate, todate__lte=form_todate).exists()
if between:
raise forms.ValidationError("Period already between this date 1")
super(Form, self).clean()
#index.html
<html>
<head>
</head>
<body>
<form action="" method="POST">
{% csrf_token %}
{% if form.errors %}
errors: {{ form.errors }}
{% endif %}
{{ form }}
<input type="submit" value="submit">
</form>
</body>
</html>
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