django-orchestra/orchestra/contrib/bills/admin.py

365 lines
14 KiB
Python

from django import forms
from django.conf.urls import url
from django.contrib import admin, messages
from django.contrib.admin.utils import unquote
from django.core.urlresolvers import reverse
from django.db import models
from django.db.models import F, Sum, Prefetch
from django.db.models.functions import Coalesce
from django.templatetags.static import static
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy as _
from django.shortcuts import redirect
from orchestra.admin import ExtendedModelAdmin
from orchestra.admin.utils import admin_date, insertattr, admin_link
from orchestra.contrib.accounts.admin import AccountAdminMixin, AccountAdmin
from orchestra.forms.widgets import paddingCheckboxSelectMultiple
from . import settings, actions
from .filters import (BillTypeListFilter, HasBillContactListFilter, TotalListFilter,
PaymentStateListFilter, AmendedListFilter)
from .models import (Bill, Invoice, AmendmentInvoice, Fee, AmendmentFee, ProForma, BillLine,
BillContact)
PAYMENT_STATE_COLORS = {
Bill.OPEN: 'grey',
Bill.CREATED: 'darkorange',
Bill.PROCESSED: 'darkorange',
Bill.AMENDED: 'blue',
Bill.PAID: 'green',
Bill.EXECUTED: 'darkorange',
Bill.BAD_DEBT: 'red',
Bill.INCOMPLETE: 'red',
}
class BillLineInline(admin.TabularInline):
model = BillLine
fields = (
'description', 'order_link', 'start_on', 'end_on', 'rate', 'quantity', 'tax',
'subtotal', 'display_total',
)
readonly_fields = ('display_total', 'order_link')
order_link = admin_link('order', display='pk')
def display_total(self, line):
total = line.compute_total()
sublines = line.sublines.all()
if sublines:
content = '\n'.join(['%s: %s' % (sub.description, sub.total) for sub in sublines])
img = static('admin/img/icon_alert.gif')
return '<span title="%s">%s <img src="%s"></img></span>' % (content, str(total), img)
return total
display_total.short_description = _("Total")
display_total.allow_tags = True
def formfield_for_dbfield(self, db_field, **kwargs):
""" Make value input widget bigger """
if db_field.name == 'description':
kwargs['widget'] = forms.TextInput(attrs={'size':'50'})
elif db_field.name not in ('start_on', 'end_on'):
kwargs['widget'] = forms.TextInput(attrs={'size':'6'})
return super(BillLineInline, self).formfield_for_dbfield(db_field, **kwargs)
def get_queryset(self, request):
qs = super(BillLineInline, self).get_queryset(request)
return qs.prefetch_related('sublines').select_related('order')
class ClosedBillLineInline(BillLineInline):
# TODO reimplement as nested inlines when upstream
# https://code.djangoproject.com/ticket/9025
fields = (
'display_description', 'order_link', 'start_on', 'end_on', 'rate', 'quantity', 'tax',
'display_subtotal', 'display_total'
)
readonly_fields = fields
def display_description(self, line):
descriptions = [line.description]
for subline in line.sublines.all():
descriptions.append('&nbsp;'*4+subline.description)
return '<br>'.join(descriptions)
display_description.short_description = _("Description")
display_description.allow_tags = True
def display_subtotal(self, line):
subtotals = ['&nbsp;&nbsp;' + str(line.subtotal)]
for subline in line.sublines.all():
subtotals.append(str(subline.total))
return '<br>'.join(subtotals)
display_subtotal.short_description = _("Subtotal")
display_subtotal.allow_tags = True
def display_total(self, line):
return line.compute_total()
display_total.short_description = _("Total")
display_total.allow_tags = True
def has_add_permission(self, request):
return False
def has_delete_permission(self, request, obj=None):
return False
class BillLineAdmin(admin.ModelAdmin):
list_display = (
'description', 'bill_link', 'display_is_open', 'account_link', 'rate', 'quantity', 'tax',
'subtotal', 'display_sublinetotal', 'display_total'
)
actions = (actions.undo_billing, actions.move_lines, actions.copy_lines,)
list_filter = ('tax', ('bill', admin.RelatedOnlyFieldListFilter), 'bill__is_open')
list_select_related = ('bill',)
search_fields = ('description', 'bill__number')
account_link = admin_link('bill__account')
bill_link = admin_link('bill')
def display_is_open(self, instance):
return instance.bill.is_open
display_is_open.short_description = _("Is open")
display_is_open.boolean = True
def display_sublinetotal(self, instance):
return instance.subline_total or ''
display_sublinetotal.short_description = _("Subline")
display_sublinetotal.admin_order_field = 'subline_total'
def display_total(self, instance):
return round(instance.computed_total or 0, 2)
display_total.short_description = _("Total")
display_total.admin_order_field = 'computed_total'
def get_queryset(self, request):
qs = super(BillLineAdmin, self).get_queryset(request)
qs = qs.annotate(
subline_total=Sum('sublines__total'),
computed_total=Sum(
(F('subtotal') + Coalesce(F('sublines__total'), 0)) * (1+F('tax')/100)
),
)
return qs
class BillLineManagerAdmin(BillLineAdmin):
def get_queryset(self, request):
qset = super(BillLineManagerAdmin, self).get_queryset(request)
if self.bill_ids:
return qset.filter(bill_id__in=self.bill_ids)
return qset
def changelist_view(self, request, extra_context=None):
GET_copy = request.GET.copy()
bill_ids = GET_copy.pop('ids', None)
if bill_ids:
bill_ids = bill_ids[0]
request.GET = GET_copy
bill_ids = list(map(int, bill_ids.split(',')))
else:
messages.error(request, _("No bills selected."))
return redirect('..')
self.bill_ids = bill_ids
if len(bill_ids) == 1:
bill_url = reverse('admin:bills_bill_change', args=(bill_ids[0],))
bill = Bill.objects.get(pk=bill_ids[0])
bill_link = '<a href="%s">%s</a>' % (bill_url, bill.number)
title = mark_safe(_("Manage %s bill lines.") % bill_link)
if not bill.is_open:
messages.warning(request, _("Bill not in open state."))
else:
if Bill.objects.filter(id__in=bill_ids, is_open=False).exists():
messages.warning(request, _("Not all bills are in open state."))
title = _("Manage bill lines of multiple bills.")
context = {
'title': title,
}
context.update(extra_context or {})
return super(BillLineManagerAdmin, self).changelist_view(request, context)
class BillAdmin(AccountAdminMixin, ExtendedModelAdmin):
list_display = (
'number', 'type_link', 'account_link', 'created_on_display',
'num_lines', 'display_total', 'display_payment_state', 'is_open', 'is_sent'
)
list_filter = (
BillTypeListFilter, 'is_open', 'is_sent', TotalListFilter, PaymentStateListFilter,
AmendedListFilter
)
add_fields = ('account', 'type', 'amend_of', 'is_open', 'due_on', 'comments')
change_list_template = 'admin/bills/change_list.html'
fieldsets = (
(None, {
'fields': ('number', 'type', 'amend_of_link', 'account_link', 'display_total',
'display_payment_state', 'is_sent', 'due_on', 'comments'),
}),
(_("Raw"), {
'classes': ('collapse',),
'fields': ('html',),
}),
)
list_prefetch_related = ('transactions',)
search_fields = ('number', 'account__username', 'comments')
change_view_actions = [
actions.manage_lines, actions.view_bill, actions.download_bills, actions.send_bills,
actions.close_bills, actions.amend_bills,
]
actions = [
actions.manage_lines, actions.download_bills, actions.close_bills, actions.send_bills,
actions.amend_bills, actions.report
]
change_readonly_fields = ('account_link', 'type', 'is_open', 'amend_of_link')
readonly_fields = ('number', 'display_total', 'is_sent', 'display_payment_state')
inlines = [BillLineInline, ClosedBillLineInline]
created_on_display = admin_date('created_on', short_description=_("Created"))
amend_of_link = admin_link('amend_of')
def num_lines(self, bill):
return bill.lines__count
num_lines.admin_order_field = 'lines__count'
num_lines.short_description = _("lines")
def display_total(self, bill):
return "%s &%s;" % (round(bill.computed_total or 0, 2), settings.BILLS_CURRENCY.lower())
display_total.allow_tags = True
display_total.short_description = _("total")
display_total.admin_order_field = 'computed_total'
def type_link(self, bill):
bill_type = bill.type.lower()
url = reverse('admin:bills_%s_changelist' % bill_type)
return '<a href="%s">%s</a>' % (url, bill.get_type_display())
type_link.allow_tags = True
type_link.short_description = _("type")
type_link.admin_order_field = 'type'
def display_payment_state(self, bill):
t_opts = bill.transactions.model._meta
transactions = bill.transactions.all()
if len(transactions) == 1:
args = (transactions[0].pk,)
url = reverse('admin:%s_%s_change' % (t_opts.app_label, t_opts.model_name), args=args)
else:
url = reverse('admin:%s_%s_changelist' % (t_opts.app_label, t_opts.model_name))
url += '?bill=%i' % bill.pk
state = bill.get_payment_state_display().upper()
title = ''
if bill.closed_amends:
state += '*'
title = _("This bill has been amended, this value may not be valid.")
color = PAYMENT_STATE_COLORS.get(bill.payment_state, 'grey')
return '<a href="{url}" style="color:{color}" title="{title}">{name}</a>'.format(
url=url, color=color, name=state, title=title)
display_payment_state.allow_tags = True
display_payment_state.short_description = _("Payment")
def get_urls(self):
""" Hook bill lines management URLs on bill admin """
urls = super(BillAdmin, self).get_urls()
admin_site = self.admin_site
extra_urls = [
url("^manage-lines/$",
admin_site.admin_view(BillLineManagerAdmin(BillLine, admin_site).changelist_view),
name='bills_bill_manage_lines'),
]
return extra_urls + urls
def get_readonly_fields(self, request, obj=None):
fields = super(BillAdmin, self).get_readonly_fields(request, obj)
if obj and not obj.is_open:
fields += self.add_fields
return fields
def get_fieldsets(self, request, obj=None):
fieldsets = super(BillAdmin, self).get_fieldsets(request, obj)
if obj:
# if obj.amend_of_id:
# fieldsets = list(fieldsets)
# fieldsets[0][1]['fields'] = fieldsets[0][1]['fields'] + ('amend_of_link',)
if obj.is_open:
fieldsets = (fieldsets[0],)
return fieldsets
def get_change_view_actions(self, obj=None):
actions = super(BillAdmin, self).get_change_view_actions(obj)
exclude = []
if obj:
if not obj.is_open:
exclude.append('close_bills')
return [action for action in actions if action.__name__ not in exclude]
def get_inline_instances(self, request, obj=None):
inlines = super(BillAdmin, self).get_inline_instances(request, obj)
if obj and not obj.is_open:
return [inline for inline in inlines if not isinstance(inline, BillLineInline)]
return [inline for inline in inlines if not isinstance(inline, ClosedBillLineInline)]
def formfield_for_dbfield(self, db_field, **kwargs):
""" Make value input widget bigger """
if db_field.name == 'comments':
kwargs['widget'] = forms.Textarea(attrs={'cols': 70, 'rows': 4})
elif db_field.name == 'html':
kwargs['widget'] = forms.Textarea(attrs={'cols': 150, 'rows': 20})
formfield = super(BillAdmin, self).formfield_for_dbfield(db_field, **kwargs)
if db_field.name == 'amend_of':
formfield.queryset = formfield.queryset.filter(is_open=False)
return formfield
def get_queryset(self, request):
qs = super(BillAdmin, self).get_queryset(request)
qs = qs.annotate(
models.Count('lines'),
computed_total=Sum(
(F('lines__subtotal') + Coalesce(F('lines__sublines__total'), 0)) * (1+F('lines__tax')/100)
),
)
qs = qs.prefetch_related(Prefetch('amends', queryset=Bill.objects.filter(is_open=False), to_attr='closed_amends'))
return qs
def change_view(self, request, object_id, **kwargs):
# TODO raise404, here and everywhere
bill = self.get_object(request, unquote(object_id))
actions.validate_contact(request, bill, error=False)
return super(BillAdmin, self).change_view(request, object_id, **kwargs)
admin.site.register(Bill, BillAdmin)
admin.site.register(Invoice, BillAdmin)
admin.site.register(AmendmentInvoice, BillAdmin)
admin.site.register(Fee, BillAdmin)
admin.site.register(AmendmentFee, BillAdmin)
admin.site.register(ProForma, BillAdmin)
admin.site.register(BillLine, BillLineAdmin)
class BillContactInline(admin.StackedInline):
model = BillContact
fields = ('name', 'address', ('city', 'zipcode'), 'country', 'vat')
def formfield_for_dbfield(self, db_field, **kwargs):
""" Make value input widget bigger """
if db_field.name == 'name':
kwargs['widget'] = forms.TextInput(attrs={'size':'70'})
if db_field.name == 'address':
kwargs['widget'] = forms.Textarea(attrs={'cols': 70, 'rows': 2})
if db_field.name == 'email_usage':
kwargs['widget'] = paddingCheckboxSelectMultiple(45)
return super(BillContactInline, self).formfield_for_dbfield(db_field, **kwargs)
def has_bill_contact(account):
return hasattr(account, 'billcontact')
has_bill_contact.boolean = True
has_bill_contact.admin_order_field = 'billcontact'
insertattr(AccountAdmin, 'inlines', BillContactInline)
insertattr(AccountAdmin, 'list_display', has_bill_contact)
insertattr(AccountAdmin, 'list_filter', HasBillContactListFilter)