Makes the reporting framework a bit more DRY.
This commit is contained in:
Christopher Neugebauer
parent
3607fb19b8
commit
32b887fed3
1 changed files with 97 additions and 107 deletions
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@ -31,22 +31,15 @@ A table
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class Report(object):
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def __init__(self, title, form, headings, data):
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self._title = title
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self._form = form
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def __init__(self, title, headings, data):
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self._headings = headings
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self._data = data
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@property
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def title(self):
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''' Returns the form. '''
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''' Returns the title for this report. '''
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return self._title
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@property
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def form(self):
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''' Returns the form. '''
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return self._form
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@property
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def headings(self):
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''' Returns the headings for the table. '''
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@ -58,139 +51,136 @@ class Report(object):
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return self._data
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def report(view):
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def report(title, form_type):
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''' Decorator that converts a report view function into something that
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displays a Report.
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Arguments:
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form_type: A form class that can make this report display things.
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'''
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@wraps(view)
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def inner_view(request, *a, **k):
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report = view(request, *a, **k)
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def _report(view):
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ctx = {
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"title": report.title,
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"form": report.form,
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"report": report,
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}
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@wraps(view)
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def inner_view(request, *a, **k):
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return render(request, "registrasion/report.html", ctx)
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form = form_type(request.GET)
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if form.is_valid() and form.has_changed():
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report = view(request, form, *a, **k)
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else:
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report = None
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return inner_view
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ctx = {
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"title": title,
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"form": form,
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"report": report,
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}
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return render(request, "registrasion/report.html", ctx)
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return inner_view
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return _report
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@report
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def items_sold(request):
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@report("Paid items", forms.ProductAndCategoryForm)
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def items_sold(request, form):
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''' Summarises the items sold and discounts granted for a given set of
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products, or products from categories. '''
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title = "Paid items"
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form = forms.ProductAndCategoryForm(request.GET)
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data = None
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headings = None
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if form.is_valid() and form.has_changed():
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products = form.cleaned_data["product"]
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categories = form.cleaned_data["category"]
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products = form.cleaned_data["product"]
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categories = form.cleaned_data["category"]
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line_items = commerce.LineItem.objects.filter(
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Q(product__in=products) | Q(product__category__in=categories),
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invoice__status=commerce.Invoice.STATUS_PAID,
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).select_related("invoice")
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line_items = commerce.LineItem.objects.filter(
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Q(product__in=products) | Q(product__category__in=categories),
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invoice__status=commerce.Invoice.STATUS_PAID,
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).select_related("invoice")
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line_items = line_items.order_by(
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# sqlite requires an order_by for .values() to work
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"-price", "description",
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).values(
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"price", "description",
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).annotate(
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total_quantity=Sum("quantity"),
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)
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line_items = line_items.order_by(
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# sqlite requires an order_by for .values() to work
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"-price", "description",
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).values(
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"price", "description",
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).annotate(
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total_quantity=Sum("quantity"),
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)
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print line_items
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print line_items
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headings = ["Description", "Quantity", "Price", "Total"]
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data = []
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total_income = 0
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for line in line_items:
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cost = line["total_quantity"] * line["price"]
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data.append([
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line["description"], line["total_quantity"],
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line["price"], cost,
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])
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total_income += cost
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headings = ["Description", "Quantity", "Price", "Total"]
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data = []
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total_income = 0
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for line in line_items:
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cost = line["total_quantity"] * line["price"]
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data.append([
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"(TOTAL)", "--", "--", total_income,
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line["description"], line["total_quantity"],
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line["price"], cost,
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])
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total_income += cost
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return Report(title, form, headings, data)
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data.append([
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"(TOTAL)", "--", "--", total_income,
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])
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return Report("Paid items", headings, data)
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@report
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def inventory(request):
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@report("Inventory", forms.ProductAndCategoryForm)
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def inventory(request, form):
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''' Summarises the inventory status of the given items, grouping by
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invoice status. '''
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title = "Inventory"
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products = form.cleaned_data["product"]
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categories = form.cleaned_data["category"]
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form = forms.ProductAndCategoryForm(request.GET)
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items = commerce.ProductItem.objects.filter(
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Q(product__in=products) | Q(product__category__in=categories),
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).select_related("cart", "product")
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data = None
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headings = None
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# TODO annotate with whether the item is reserved or not.
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if form.is_valid() and form.has_changed():
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products = form.cleaned_data["product"]
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categories = form.cleaned_data["category"]
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items = items.annotate(is_reserved=Case(
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When(cart__in=commerce.Cart.reserved_carts(), then=Value(1)),
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default=Value(0),
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output_field=models.BooleanField(),
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))
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items = commerce.ProductItem.objects.filter(
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Q(product__in=products) | Q(product__category__in=categories),
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).select_related("cart", "product")
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items = items.order_by(
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"cart__status",
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"product__category__order",
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"product__order",
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).values(
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"product",
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"product__category__name",
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"product__name",
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"cart__status",
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"is_reserved",
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).annotate(
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total_quantity=Sum("quantity"),
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)
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# TODO annotate with whether the item is reserved or not.
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headings = ["Product", "Status", "Quantity"]
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data = []
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items = items.annotate(is_reserved=Case(
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When(cart__in=commerce.Cart.reserved_carts(), then=Value(1)),
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default=Value(0),
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output_field=models.BooleanField(),
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))
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items = items.order_by(
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"cart__status",
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"product__category__order",
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"product__order",
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).values(
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"product",
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"product__category__name",
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"product__name",
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"cart__status",
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"is_reserved",
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).annotate(
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total_quantity=Sum("quantity"),
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def status(reserved, status):
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r = "Reserved" if reserved else "Unreserved"
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# This is a bit weird -- can we simplify?
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s = "".join(
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"%s" % i[1] for i in commerce.Cart.STATUS_TYPES if i[0]==status
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)
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return "%s - %s" % (r, s)
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headings = ["Product", "Status", "Quantity"]
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data = []
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for item in items:
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data.append([
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"%s - %s" % (
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item["product__category__name"], item["product__name"]
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),
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status(item["is_reserved"], item["cart__status"]),
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item["total_quantity"],
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])
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def status(reserved, status):
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r = "Reserved" if reserved else "Unreserved"
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s = "".join(
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"%s" % i[1]
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for i in commerce.Cart.STATUS_TYPES if i[0]==status
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)
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return "%s - %s" % (r, s)
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for item in items:
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print commerce.Cart.STATUS_TYPES
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data.append([
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"%s - %s" % (
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item["product__category__name"], item["product__name"]
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),
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status(item["is_reserved"], item["cart__status"]),
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item["total_quantity"],
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])
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return Report(title, form, headings, data)
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return Report("Inventory", headings, data)
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