101 lines
2.3 KiB
Python
101 lines
2.3 KiB
Python
import forms
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from django.db.models import Q
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from django.shortcuts import render
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from functools import wraps
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from models import commerce
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'''
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All reports must be viewable by staff only (permissions?)
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Reports can have:
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A form
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* Reports are all *gettable* - you can save a URL and get back to the same
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report
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* Fetching a report *cannot* break the underlying data.
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A table
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* Headings
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* Data lines
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* Formats are pluggable
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'''
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class Report(object):
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def __init__(self, form, headings, data):
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self._form = form
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self._headings = headings
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self._data = data
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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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return self._headings
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@property
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def data(self):
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''' Returns the data rows for the table. '''
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return self._data
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def report(view):
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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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'''
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print "hello"
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@wraps(view)
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def inner_view(request, *a, **k):
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print "lol"
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report = view(request, *a, **k)
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ctx = {
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"form": report.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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@report
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def items_sold(request):
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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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print "beep"
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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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# TODO augment the form to allow us to filter by invoice status.
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line_items = commerce.LineItem.objects.filter(
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Q(product=products) | Q(product__category=categories),
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invoice__status=commerce.Invoice.STATUS_PAID,
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).select_related("invoice")
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headings = ["invoice_id", "description", "quantity", "price"]
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data = []
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for line in line_items:
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data.append([line.invoice.id, line.description, line.quantity, line.price])
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return Report(form, headings, data)
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