hello list
i ran into some weird stuff and neither i nor 2 gentle folks down at the
irc-chat could find any obvious problems. task should have been easy:
calculate some special initial data and present it as initials in a
form. the form is showed correctly, and the right values are printed in
console.. and, of course, there is no error raised..
thank you for any hints! i've been stuck here....
gabriel
# models.py
class AmountModel(models.Model):
class Meta:
abstract = True
currencies = (
('CHF', "Swiss Francs"),
('EUR', "Euros"),
)
amount = models.FloatField();
currency = models.CharField( max_length=3, choices=currencies,
default='CHF' )
def __str__(self):
return "{} {}".format(self.amount, [ j[1] for i,j in
enumerate(self.currencies) if j[0] == self.currency][0] )
def short(self):
return "{} {}".format([ j[0] for i,j in
enumerate(self.currencies) if j[0] == self.currency][0], self.amount )
def __add__(self, other):
return AmountModel(amount=self.amount+other.amount,
currency=self.currency)
class DocumentModel(models.Model):
class Meta:
abstract = True
tex = models.FileField(verbose_name = "TeX")
pdf = models.FileField(verbose_name = "PDF")
def generate_pdf( self ):
return
class Invoice(AmountModel, DocumentModel):
STATUS = (
("o", "open"), # initialized
("c", "complete"), # completed (no info missing)
("s","sent"), # sent
("p","pending"), # sent but money not yet received
("pd","paid") # paid and archived
)
client = models.ForeignKey( 'Client', on_delete=models.CASCADE )
title = models.CharField( max_length=200 )
status = models.CharField( max_length=2, choices = STATUS )
number = models.IntegerField( blank=True )
date_created = models.DateField( auto_now=True )
date_sent = models.DateField( blank=True )
date_paid = models.DateField( blank=True )
@property
def jobs(self):
return Job.objects.filter( invoice=self )
@property
def expenses(self):
return Expense.objects.filter( invoice=self )
def __str__(self):
if self.status.startswith('p'):
return '%d %s'.format(self.number, self.title )
return self.title
def update_status(self):
if (self.date_sent == None):
self.status = STATUS[0][0]
elif (self.date_paid == None):
self.status = STATUS[1][0]
else:
self.status = STATUS[2][0]
return
def calculate_amount(self):
amount = 0
for o in [ self.jobs, self.expenses ].flatten:
amount += o.amount
self.amount = amount
self.save()
return
def create_tex( self ):
template_file = 'templates/invoice.tex'
t = loader.get_template(template_file)
context = {
'title': self.title,
}
filename = '%d %s'.format(self.number, slugify(self.title) )
self.tex.file = open(filename+'.tex', 'w')
self.tex.file.write(smart_str( t.render(context) ))
return
def send_to_client( self ):
return
# views.py
class CreateInvoice(CreateView):
model = Invoice
form_class = InvoiceForm
template_name = 'standard_form.html'
def get_initial(self):
initial = super(CreateView, self).get_initial().copy()
initial['title'] = "blablabla"
amount = {'CHF': 0, 'EUR': 0}
currency = self.jobs[0].worth.currency
for j in self.jobs:
amount[j.worth.currency] += j.worth.amount
for a in amount.keys():
if not amount[a] == 0:
try:
initial['value'] is None
except KeyError:
initial['currency'] = a
initial['amount'] = amount[a]
print(initial)
return initial
def post(self, request, *args, **kwargs):
print("post()")
req = request.POST.copy()
req.pop('csrfmiddlewaretoken')
self.jobs = Job.objects.filter(id__in=req.keys(),
client_id=kwargs['client_id'])
return super(CreateView, self).post(request,*args,**kwargs)
# standard_form.html
{% extends 'main_form.html' %}
{% block formaction %}{{ formaction }}{% endblock %}
{% block 'title' %}{{ title }}{% endblock %}
{% block form %}
{% for field in form %}
<div class="field{% if field.is_required %} required{% endif %}">
<div class="form-error">{{ field.errors }}</div>
{{ field.label_tag }}
{{ field }}
</div>
{% endfor %}
{% endblock %}
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