Hey Guys
Thanks for your reply!!
I finally managed to get the code running.
The reason for no showing up the validation messages was, that I my action
within the form action method was set to POST. When I have switched that to
GET, everything worked as expected.
Thanks
Sunil
Am Freitag, 28. Februar 2020 13:26:20 UTC+1 schrieb Naveen Arora:
>
> Use this as below in your view -
>
> context["form"] = YourForm(request.POST or None)
>
> and just a method if form.is_valid(), there is no need for the else part.
>
> On Friday, 28 February 2020 02:41:04 UTC+5:30, Sunil BK wrote:
>>
>> Hello community
>>
>> I am trying to build a simple form which can be opened using a button. It
>> should offer some fields which should be further process after validation.
>> And there is exactly my issue. When I write some data into the fields and
>> click the submit button. the validation error is NOT displayed below the
>> screen like in this screeshot:
>>
>> [image: 2020-02-27_21-52-30.png]
>>
>>
>> but is displayed in the log.
>>
>> Can somebody give me a hint what I am missing here?
>> Thanks a lot!!
>> Sunil
>>
>>
>> This is the code I am using:
>>
>> my HTML Code for presenting the form.
>>
>> {% extends 'base.html' %}
>> {% load crispy_forms_tags %}
>> {%block content%}
>> <br>
>> <h1 style="color:black">Add System to Organization</h1>
>> <br>
>> <div class="col" style="color:black">
>> <form method="post" action="{% url 'chr_add_system' %}" class="uniForm">
>> {% csrf_token %}
>> {{form|crispy}}
>> <input type="submit" value="Submit"/>
>> </form>
>> </div>
>> <br>
>> {%endblock content%}
>>
>>
>> the view:
>>
>> def chr_add_system_view(request):
>> if request.method == 'POST':
>> form = AddChrSystemForm(request.POST)
>> if form.is_valid():
>> print('add_system-------->valid')
>> # TODO: do something
>> return redirect(chr_systems_view)
>> else:
>> print('form.errors ' + str(form.errors))
>> form = AddChrSystemForm()
>> context = {'form': form}
>> return render(request=request,
>> template_name='chr/add_system.html', context=context)
>>
>>
>> the form:
>>
>> class AddSystemForm(ModelForm):
>>
>> def __init__(self, *args, **kwargs):
>> super(AddSystemForm, self).__init__(*args, **kwargs)
>> self.fields['profile_name'].widget.attrs['readonly'] = True
>>
>> class Meta:
>> model = System
>> fields = '__all__'
>>
>> def clean_system_id(self):
>> print('validating oid of system..')
>>
>> system_id = self.cleaned_data['system_id']
>> print('system_id: ' + system_id)
>>
>> if "2.16" not in system_id:
>> print('oid of system id is invalid')
>>
>> raise forms.ValidationError(
>> "Your submissionset source oid seems to be invalid. ==> it
>> has to be a valid oid and must start with: 2.16")
>> print('oid of system id is valid')
>> return system_id
>>
>>
>> the button where the form is called:
>>
>> <div class="col system_title">
>> <font style="color:Black;"><b>SourceId</b></font>
>> <form method="post" action="{% url 'add_system' %}" class="uniForm">
>> {% csrf_token %}
>> <button type='submit' name="add_system"
>> class="btn btn-warning btn-sm float-right"
>> value="{{item0}}">[WIP] Add System
>> </button>
>> </form>
>> </div>
>>
>>
>> my class
>>
>> class System(models.Model):
>> system_id = models.CharField(max_length=100)
>> abbreviation = models.CharField(max_length=100, default="SRC-")
>> software_name = models.CharField(max_length=100, default="Portal")
>> vendor = models.CharField(max_length=100, default="vendor")
>> profile_name = models.CharField(max_length=100, default="Source")
>>
>>
>>
>>
>>
>>
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