Basic crowdfunding.

[wolnelektury.git] / apps / funding / views.py

diff --git a/apps/funding/views.py b/apps/funding/views.py
new file mode 100644 (file)
index 0000000..dab996a
--- /dev/null
+++ b/apps/funding/views.py
@@ -0,0 +1,39 @@
+# Create your views here.
+from django.views.generic import TemplateView
+from .models import Offer
+
+
+def mix(*streams):
+    substreams = []
+    for stream, read_date in streams:
+        iterstream = iter(stream)
+        try:
+            item = next(iterstream)
+        except StopIteration:
+            pass
+        else:
+            substreams.append([read_date(item), item, iterstream, read_date])
+    while substreams:
+        i, substream = max(enumerate(substreams), key=lambda x: x[0])
+        yield substream[1]
+        try:
+            item = next(substream[2])
+        except StopIteration:
+            del substreams[i]
+        else:
+            substream[0:2] = [substream[3](item), item]
+
+
+class WLFundView(TemplateView):
+    template_name = "funding/wlfund.html"
+
+    def get_context_data(self):
+        ctx = super(WLFundView, self).get_context_data()
+        offers = [o for o in Offer.objects.all() if o.state() == 'lose' and o.sum()]
+        amount = sum(o.sum() for o in offers)
+        print offers
+
+        #offers = (o for o in Offer.objects.all() if o.state() == 'lose' and o.sum())
+        ctx['amount'] = amount
+        ctx['log'] = mix((offers, lambda x: x.end))
+        return ctx