symposion_app/registrasion/reporting/views.py
2016-09-02 11:25:50 +10:00

196 lines
5.2 KiB
Python

from django.contrib.auth.decorators import user_passes_test
from django.core.urlresolvers import reverse
from django.db import models
from django.db.models import F, Q
from django.db.models import Sum
from django.db.models import Case, When, Value
from django.shortcuts import render
from registrasion import forms
from registrasion.models import commerce
from registrasion import views
from reports import get_all_reports
from reports import Report
from reports import report_view
@user_passes_test(views._staff_only)
def reports_list(request):
''' Lists all of the reports currently available. '''
reports = []
for report in get_all_reports():
reports.append({
"name": report.__name__,
"url": reverse(report),
"description": report.__doc__,
})
reports.sort(key=lambda report: report["name"])
ctx = {
"reports": reports,
}
return render(request, "registrasion/reports_list.html", ctx)
# Report functions
@report_view("Paid items", form_type=forms.ProductAndCategoryForm)
def items_sold(request, form):
''' Summarises the items sold and discounts granted for a given set of
products, or products from categories. '''
data = None
headings = None
products = form.cleaned_data["product"]
categories = form.cleaned_data["category"]
line_items = commerce.LineItem.objects.filter(
Q(product__in=products) | Q(product__category__in=categories),
invoice__status=commerce.Invoice.STATUS_PAID,
).select_related("invoice")
line_items = line_items.order_by(
# sqlite requires an order_by for .values() to work
"-price", "description",
).values(
"price", "description",
).annotate(
total_quantity=Sum("quantity"),
)
print line_items
headings = ["Description", "Quantity", "Price", "Total"]
data = []
total_income = 0
for line in line_items:
cost = line["total_quantity"] * line["price"]
data.append([
line["description"], line["total_quantity"],
line["price"], cost,
])
total_income += cost
data.append([
"(TOTAL)", "--", "--", total_income,
])
return Report("Paid items", headings, data)
@report_view("Product status", form_type=forms.ProductAndCategoryForm)
def product_status(request, form):
''' Summarises the inventory status of the given items, grouping by
invoice status. '''
products = form.cleaned_data["product"]
categories = form.cleaned_data["category"]
items = commerce.ProductItem.objects.filter(
Q(product__in=products) | Q(product__category__in=categories),
).select_related("cart", "product")
items = items.annotate(
is_reserved=Case(
When(cart__in=commerce.Cart.reserved_carts(), then=Value(1)),
default=Value(0),
output_field=models.BooleanField(),
),
)
items = items.order_by(
"product__category__order",
"product__order",
).values(
"product",
"product__category__name",
"product__name",
).annotate(
total_paid=Sum(Case(
When(
cart__status=commerce.Cart.STATUS_PAID,
then=F("quantity"),
),
default=Value(0),
)),
total_refunded=Sum(Case(
When(
cart__status=commerce.Cart.STATUS_RELEASED,
then=F("quantity"),
),
default=Value(0),
)),
total_unreserved=Sum(Case(
When(
(
Q(cart__status=commerce.Cart.STATUS_ACTIVE) &
Q(is_reserved=False)
),
then=F("quantity"),
),
default=Value(0),
)),
total_reserved=Sum(Case(
When(
(
Q(cart__status=commerce.Cart.STATUS_ACTIVE) &
Q(is_reserved=True)
),
then=F("quantity"),
),
default=Value(0),
)),
)
headings = [
"Product", "Paid", "Reserved", "Unreserved", "Refunded",
]
data = []
for item in items:
data.append([
"%s - %s" % (
item["product__category__name"], item["product__name"]
),
item["total_paid"],
item["total_reserved"],
item["total_unreserved"],
item["total_refunded"],
])
return Report("Inventory", headings, data)
@report_view("Credit notes")
def credit_notes(request, form):
''' Shows all of the credit notes in the system. '''
notes = commerce.CreditNote.objects.all().select_related(
"creditnoterefund",
"creditnoteapplication",
"invoice",
"invoice__user__attendee__attendeeprofilebase",
)
headings = [
"id", "Owner", "Status", "Value",
]
data = []
for note in notes:
data.append([
note.id,
note.invoice.user.attendee.attendeeprofilebase.invoice_recipient(),
note.status,
note.value,
])
return Report("Credit Notes", headings, data, link_view="credit_note")