371 lines
14 KiB
Python
371 lines
14 KiB
Python
import io
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import zipfile
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from datetime import date
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from django.contrib import messages
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from django.contrib.admin import helpers
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from django.core.exceptions import ValidationError
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from django.core.urlresolvers import reverse
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from django.db import transaction
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from django.forms.models import modelformset_factory
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from django.http import HttpResponse
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from django.shortcuts import render, redirect
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from django.utils import translation, timezone
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from django.utils.safestring import mark_safe
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from django.utils.translation import ungettext, ugettext_lazy as _
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from orchestra.admin.decorators import action_with_confirmation
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from orchestra.admin.forms import AdminFormSet
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from orchestra.admin.utils import get_object_from_url, change_url
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from . import settings
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from .forms import SelectSourceForm
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from .helpers import validate_contact
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from .models import Bill, BillLine
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def view_bill(modeladmin, request, queryset):
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bill = queryset.get()
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if not validate_contact(request, bill):
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return
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html = bill.html or bill.render()
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return HttpResponse(html)
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view_bill.tool_description = _("View")
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view_bill.url_name = 'view'
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@transaction.atomic
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def close_bills(modeladmin, request, queryset, action='close_bills'):
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# Validate bills
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for bill in queryset:
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if not validate_contact(request, bill):
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return False
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if not bill.is_open:
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messages.warning(request, _("Selected bills should be in open state"))
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return False
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SelectSourceFormSet = modelformset_factory(modeladmin.model, form=SelectSourceForm, formset=AdminFormSet, extra=0)
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formset = SelectSourceFormSet(queryset=queryset)
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if request.POST.get('post') == 'generic_confirmation':
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formset = SelectSourceFormSet(request.POST, request.FILES, queryset=queryset)
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if formset.is_valid():
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transactions = []
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for form in formset.forms:
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source = form.cleaned_data['source']
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transaction = form.instance.close(payment=source)
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if transaction:
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transactions.append(transaction)
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for bill in queryset:
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modeladmin.log_change(request, bill, 'Closed')
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messages.success(request, _("Selected bills have been closed"))
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if transactions:
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num = len(transactions)
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if num == 1:
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url = change_url(transactions[0])
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else:
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url = reverse('admin:payments_transaction_changelist')
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url += 'id__in=%s' % ','.join([str(t.id) for t in transactions])
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context = {
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'url': url,
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'num': num,
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}
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message = ungettext(
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_('<a href="%(url)s">One related transaction</a> has been created') % context,
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_('<a href="%(url)s">%(num)i related transactions</a> have been created') % context,
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num)
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messages.success(request, mark_safe(message))
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return
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opts = modeladmin.model._meta
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context = {
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'title': _("Are you sure about closing the following bills?"),
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'content_message': _("Once a bill is closed it can not be further modified.</p>"
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"<p>Please select a payment source for the selected bills"),
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'action_name': 'Close bills',
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'action_value': action,
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'display_objects': [],
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'queryset': queryset,
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'opts': opts,
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'app_label': opts.app_label,
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'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
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'formset': formset,
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'obj': get_object_from_url(modeladmin, request),
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}
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template = 'admin/orchestra/generic_confirmation.html'
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if action == 'close_send_download_bills':
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template = 'admin/bills/bill/close_send_download_bills.html'
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return render(request, template, context)
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close_bills.tool_description = _("Close")
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close_bills.url_name = 'close'
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def send_bills_action(modeladmin, request, queryset):
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"""
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raw function without confirmation
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enables reuse on close_send_download_bills because of generic_confirmation.action_view
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"""
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for bill in queryset:
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if not validate_contact(request, bill):
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return False
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num = 0
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for bill in queryset:
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bill.send()
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modeladmin.log_change(request, bill, 'Sent')
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num += 1
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messages.success(request, ungettext(
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_("One bill has been sent."),
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_("%i bills have been sent.") % num,
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num))
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@action_with_confirmation()
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def send_bills(modeladmin, request, queryset):
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return send_bills_action(modeladmin, request, queryset)
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send_bills.verbose_name = lambda bill: _("Resend" if getattr(bill, 'is_sent', False) else "Send")
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send_bills.url_name = 'send'
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def download_bills(modeladmin, request, queryset):
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for bill in queryset:
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if not validate_contact(request, bill):
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return False
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if len(queryset) > 1:
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bytesio = io.BytesIO()
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archive = zipfile.ZipFile(bytesio, 'w')
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for bill in queryset:
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pdf = bill.as_pdf()
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archive.writestr('%s.pdf' % bill.number, pdf)
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archive.close()
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response = HttpResponse(bytesio.getvalue(), content_type='application/pdf')
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response['Content-Disposition'] = 'attachment; filename="orchestra-bills.zip"'
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return response
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bill = queryset[0]
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pdf = bill.as_pdf()
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response = HttpResponse(pdf, content_type='application/pdf')
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response['Content-Disposition'] = 'attachment; filename="%s.pdf"' % bill.number
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return response
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download_bills.tool_description = _("Download")
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download_bills.url_name = 'download'
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def close_send_download_bills(modeladmin, request, queryset):
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response = close_bills(modeladmin, request, queryset, action='close_send_download_bills')
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if response is False:
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# Not a valid contact or closed bill
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return
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if request.POST.get('post') == 'generic_confirmation':
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response = send_bills_action(modeladmin, request, queryset)
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if response is False:
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# Not a valid contact
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return
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return download_bills(modeladmin, request, queryset)
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return response
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close_send_download_bills.tool_description = _("C.S.D.")
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close_send_download_bills.url_name = 'close-send-download'
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close_send_download_bills.help_text = _("Close, send and download bills in one shot.")
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def manage_lines(modeladmin, request, queryset):
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url = reverse('admin:bills_bill_manage_lines')
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url += '?ids=%s' % ','.join(map(str, queryset.values_list('id', flat=True)))
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return redirect(url)
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@action_with_confirmation()
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def undo_billing(modeladmin, request, queryset):
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group = {}
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for line in queryset.select_related('order'):
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if line.order_id:
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try:
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group[line.order].append(line)
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except KeyError:
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group[line.order] = [line]
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# Validate
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for order, lines in group.items():
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prev = None
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billed_on = date.max
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billed_until = date.max
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for line in sorted(lines, key=lambda l: l.start_on):
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if billed_on is not None:
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if line.order_billed_on is None:
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billed_on = line.order_billed_on
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else:
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billed_on = min(billed_on, line.order_billed_on)
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if billed_until is not None:
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if line.order_billed_until is None:
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billed_until = line.order_billed_until
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else:
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billed_until = min(billed_until, line.order_billed_until)
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if prev:
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if line.start_on != prev:
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messages.error(request, "Line dates doesn't match.")
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return
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else:
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# First iteration
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if order.billed_on < line.start_on:
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messages.error(request, "Billed on is smaller than first line start_on.")
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return
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prev = line.end_on
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nlines += 1
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if not prev:
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messages.error(request, "Order does not have lines!.")
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order.billed_until = billed_until
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order.billed_on = billed_on
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# Commit changes
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norders, nlines = 0, 0
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for order, lines in group.items():
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for line in lines:
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nlines += 1
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line.delete()
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# TODO update order history undo billing
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order.save(update_fields=('billed_until', 'billed_on'))
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norders += 1
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messages.success(request, _("%(norders)s orders and %(nlines)s lines undoed.") % {
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'nlines': nlines,
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'norders': norders
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})
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def move_lines(modeladmin, request, queryset, action=None):
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# Validate
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target = request.GET.get('target')
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if not target:
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# select target
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context = {}
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return render(request, 'admin/orchestra/generic_confirmation.html', context)
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target = Bill.objects.get(pk=int(pk))
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if request.POST.get('post') == 'generic_confirmation':
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for line in queryset:
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line.bill = target
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line.save(update_fields=['bill'])
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# TODO bill history update
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messages.success(request, _("Lines moved"))
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# Final confirmation
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return render(request, 'admin/orchestra/generic_confirmation.html', context)
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def copy_lines(modeladmin, request, queryset):
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# same as move, but changing action behaviour
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return move_lines(modeladmin, request, queryset)
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def validate_amend_bills(bills):
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for bill in bills:
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if bill.is_open:
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raise ValidationError(_("Selected bills should be in closed state"))
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if bill.type not in bill.AMEND_MAP:
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raise ValidationError(_("%s can not be amended.") % bill.get_type_display())
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@action_with_confirmation(validator=validate_amend_bills)
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def amend_bills(modeladmin, request, queryset):
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amend_ids = []
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for bill in queryset:
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with translation.override(bill.account.language):
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amend_type = bill.get_amend_type()
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context = {
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'related_type': _(bill.get_type_display()),
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'number': bill.number,
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'date': bill.created_on,
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}
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amend = Bill.objects.create(
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account=bill.account,
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type=amend_type,
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amend_of=bill,
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)
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context['type'] = _(amend.get_type_display())
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amend.comments = _("%(type)s of %(related_type)s %(number)s and creation date %(date)s") % context
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amend.save(update_fields=('comments',))
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for tax, subtotals in bill.compute_subtotals().items():
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context['tax'] = tax
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line = BillLine.objects.create(
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bill=amend,
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start_on=bill.created_on,
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description=_("%(related_type)s %(number)s subtotal for tax %(tax)s%%") % context,
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subtotal=subtotals[0],
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tax=tax
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)
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amend_ids.append(amend.pk)
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num = len(amend_ids)
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if num == 1:
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amend_url = reverse('admin:bills_bill_change', args=amend_ids)
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else:
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amend_url = reverse('admin:bills_bill_changelist')
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amend_url += '?id=%s' % ','.join(map(str, amend_ids))
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context = {
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'url': amend_url,
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'num': num,
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}
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messages.success(request, mark_safe(ungettext(
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_('<a href="%(url)s">One amendment bill</a> have been generated.') % context,
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_('<a href="%(url)s">%(num)i amendment bills</a> have been generated.') % context,
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num
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)))
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amend_bills.tool_description = _("Amend")
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amend_bills.url_name = 'amend'
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def bill_report(modeladmin, request, queryset):
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subtotals = {}
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total = 0
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for bill in queryset:
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for tax, subtotal in bill.compute_subtotals().items():
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try:
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subtotals[tax][0] += subtotal[0]
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except KeyError:
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subtotals[tax] = subtotal
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else:
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subtotals[tax][1] += subtotal[1]
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total += bill.compute_total()
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context = {
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'subtotals': subtotals,
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'total': total,
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'bills': queryset,
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'currency': settings.BILLS_CURRENCY,
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}
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return render(request, 'admin/bills/bill/report.html', context)
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def service_report(modeladmin, request, queryset):
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services = {}
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totals = [0, 0, 0, 0, 0]
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now = timezone.now().date()
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if queryset.model == Bill:
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queryset = BillLine.objects.filter(bill_id__in=queryset.values_list('id', flat=True))
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# Filter amends
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queryset = queryset.filter(bill__amend_of__isnull=True)
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for line in queryset.select_related('order__service').prefetch_related('sublines'):
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order, service = None, None
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if line.order_id:
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order = line.order
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service = order.service
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name = service.description
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active, cancelled = (1, 0) if not order.cancelled_on or order.cancelled_on > now else (0, 1)
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nominal_price = order.service.nominal_price
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else:
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name = '*%s' % line.description
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active = 1
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cancelled = 0
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nominal_price = 0
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try:
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info = services[name]
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except KeyError:
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info = [active, cancelled, nominal_price, line.quantity or 1, line.compute_total()]
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services[name] = info
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else:
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info[0] += active
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info[1] += cancelled
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info[3] += line.quantity or 1
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info[4] += line.compute_total()
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totals[0] += active
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totals[1] += cancelled
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totals[2] += nominal_price
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totals[3] += line.quantity or 1
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totals[4] += line.compute_total()
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context = {
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'services': sorted(services.items(), key=lambda n: -n[1][4]),
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'totals': totals,
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}
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return render(request, 'admin/bills/billline/report.html', context)
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