forms.py
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from django import forms
from django.utils.translation import ugettext_lazy as _
import datetime
from users.models import User
from .models import Subject, Tag
class ParticipantsMultipleChoiceField(forms.ModelMultipleChoiceField):
def label_from_instance(self, obj):
label = str(obj) + " - (" + obj.email + ")"
return label
class CreateSubjectForm(forms.ModelForm):
category_id = None
students = ParticipantsMultipleChoiceField(queryset = User.objects.all(), required = False)
professor = ParticipantsMultipleChoiceField(queryset = User.objects.all(), required = False)
def __init__(self, *args, **kwargs):
super(CreateSubjectForm, self).__init__(*args, **kwargs)
if kwargs['initial']:
if kwargs['initial']['category']:
categories = kwargs['initial']['category']
if categories.count() > 0:
self.category_id = categories[0].id
if not kwargs['instance'] is None:
self.initial['tags'] = ", ".join(self.instance.tags.all().values_list("name", flat = True))
# TODO: Define form fields here
tags = forms.CharField(label = _('Tags'), required = False)
class Meta:
model = Subject
fields = ('name', 'description_brief', 'description', 'subscribe_begin', 'subscribe_end', 'init_date', 'end_date',
'visible', 'professor', 'students', )
widgets = {
'description_brief': forms.Textarea,
'description': forms.Textarea,
'professor': forms.SelectMultiple,
'students': forms.SelectMultiple,
}
def save(self, commit=True):
super(CreateSubjectForm, self).save(commit = True)
self.instance.save()
previous_tags = self.instance.tags.all()
tags = self.cleaned_data['tags'].split(",")
#Excluding unwanted tags
for prev in previous_tags:
if not prev.name in tags:
self.instance.tags.remove(prev)
for tag in tags:
tag = tag.strip()
exist = Tag.objects.filter(name = tag).exists()
if exist:
new_tag = Tag.objects.get(name = tag)
else:
new_tag = Tag.objects.create(name = tag)
if not new_tag in self.instance.tags.all():
self.instance.tags.add(new_tag)
return self.instance
def clean_name(self):
name = self.cleaned_data.get('name')
if self.instance.id:
same_name = Subject.objects.filter(name__unaccent__iexact = name, category = self.category_id).exclude(id = self.instance.id)
else:
same_name = Subject.objects.filter(name__unaccent__iexact = name, category = self.category_id)
if same_name.count() > 0:
self._errors['name'] = [_('There is another subject with this name, try another one.')]
return ValueError
return name
def clean_subscribe_begin(self):
subscribe_begin = self.cleaned_data['subscribe_begin']
if subscribe_begin < datetime.datetime.today().date():
self._errors['subscribe_begin'] = [_('This date must be today or after')]
return ValueError
return subscribe_begin
def clean_subscribe_end(self):
subscribe_end = self.cleaned_data['subscribe_end']
subscribe_begin = self.cleaned_data['subscribe_begin']
if subscribe_begin is ValueError or subscribe_end < subscribe_begin:
self._errors['subscribe_end'] = [_('This date must be equal subscribe begin or after')]
return ValueError
return subscribe_end
def clean_init_date(self):
init_date = self.cleaned_data['init_date']
subscribe_end = self.cleaned_data['subscribe_end']
if subscribe_end is ValueError or init_date <= subscribe_end:
self._errors['init_date'] = [_('This date must be after subscribe end')]
return ValueError
return init_date
def clean_end_date(self):
end_date = self.cleaned_data['end_date']
init_date = self.cleaned_data['init_date']
if init_date is ValueError or end_date < init_date:
self._errors['end_date'] = [_('This date must be equal init date or after')]
return ValueError
return end_date
class UpdateSubjectForm(forms.ModelForm):
students = ParticipantsMultipleChoiceField(queryset = User.objects.all(), required = False)
professor = ParticipantsMultipleChoiceField(queryset = User.objects.all(), required = False)
def __init__(self, *args, **kwargs):
super(UpdateSubjectForm, self).__init__(*args, **kwargs)
if not kwargs['instance'] is None:
self.initial['tags'] = ", ".join(self.instance.tags.all().values_list("name", flat = True))
# TODO: Define form fields here
tags = forms.CharField(label = _('Tags'), required = False)
class Meta:
model = Subject
fields = ('name', 'description_brief', 'description', 'subscribe_begin', 'subscribe_end', 'init_date', 'end_date',
'visible', 'professor', 'students', )
widgets = {
'description_brief': forms.Textarea,
'description': forms.Textarea,
'professor': forms.SelectMultiple,
'students': forms.SelectMultiple,
}
def save(self, commit=True):
super(UpdateSubjectForm, self).save(commit = True)
self.instance.save()
previous_tags = self.instance.tags.all()
tags = self.cleaned_data['tags'].split(",")
#Excluding unwanted tags
for prev in previous_tags:
if not prev.name in tags:
self.instance.tags.remove(prev)
for tag in tags:
tag = tag.strip()
exist = Tag.objects.filter(name = tag).exists()
if exist:
new_tag = Tag.objects.get(name = tag)
else:
new_tag = Tag.objects.create(name = tag)
if not new_tag in self.instance.tags.all():
self.instance.tags.add(new_tag)
return self.instance
def clean_name(self):
name = self.cleaned_data.get('name')
categoria = self.instance.category
if self.instance.id:
same_name = Subject.objects.filter(name__unaccent__iexact = name , category = categoria).exclude(id = self.instance.id)
else:
same_name = Subject.objects.filter(name__unaccent__iexact = name, category = categoria)
if same_name.count() > 0:
self._errors['name'] = [_('There is another subject with this name, try another one.')]
return name
# def clean_subscribe_begin(self):
# subscribe_begin = self.cleaned_data['subscribe_begin']
#
# if subscribe_begin < datetime.datetime.today().date() and subscribe_begin < self.instance.subscribe_begin:
# self._errors['subscribe_begin'] = [_('This date must be today or after')]
# return ValueError
#
# return subscribe_begin
def clean_subscribe_end(self):
subscribe_end = self.cleaned_data['subscribe_end']
subscribe_begin = self.cleaned_data['subscribe_begin']
if subscribe_begin is ValueError or subscribe_end < subscribe_begin:
self._errors['subscribe_end'] = [_('This date must be equal subscribe begin or after')]
return ValueError
return subscribe_end
def clean_init_date(self):
init_date = self.cleaned_data['init_date']
subscribe_end = self.cleaned_data['subscribe_end']
if subscribe_end is ValueError or init_date <= subscribe_end:
self._errors['init_date'] = [_('This date must be after subscribe end')]
return ValueError
return init_date
def clean_end_date(self):
end_date = self.cleaned_data['end_date']
init_date = self.cleaned_data['init_date']
if init_date is ValueError or end_date < init_date:
self._errors['end_date'] = [_('This date must be equal init date or after')]
return ValueError
return end_date
class CreateTagForm(forms.ModelForm):
class Meta:
model = Tag
fields = ('name',)