All geek questions in one place

Django form field cleared to check if the entered date is in the saved range

I am trying to write a form cleaning method to ensure that the entered date pair is not currently covered by the date ranges stored in the model.

So, I want to catch fromdate >= value <= todate , but between filters in my pure methods don't get it.

Can someone suggest 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
+4
source share
1 answer

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>
+7
source

Source: https://habr.com/ru/post/1441493/

More articles:


All Articles