added email notifications. requires schema change to add email column to users table.

[bluechips.git] / bluechips / controllers / spend.py

diff --git a/bluechips/controllers/spend.py b/bluechips/controllers/spend.py
index b8452b5eb5ea02ac4f798180a342a14d04993bab..e309b00410421dd397d27b7dd26f047a1b69af74 100644 (file)
--- a/bluechips/controllers/spend.py
+++ b/bluechips/controllers/spend.py
@@ -4,15 +4,105 @@ Handle expenditures
 
 import logging
 
+from decimal import Decimal, InvalidOperation
+
 from bluechips.lib.base import *
-from bluechips.widgets import spend
+
+from pylons import request, app_globals as g
+from pylons.decorators.rest import dispatch_on
+from pylons.decorators import validate
+
+from formencode import validators, Schema
+from formencode.foreach import ForEach
+from formencode.variabledecode import NestedVariables
+
+from mailer import Message
 
 log = logging.getLogger(__name__)
 
+
+class ShareSchema(Schema):
+    "Validate individual user shares."
+    allow_extra_fields = False
+    user_id = validators.Int(not_empty=True)
+    amount = validators.Number(not_empty=True)
+
+
+class ExpenditureSchema(Schema):
+    "Validate an expenditure."
+    allow_extra_fields = False
+    pre_validators = [NestedVariables()]
+    spender_id = validators.Int(not_empty=True)
+    amount = model.types.CurrencyValidator(not_empty=True)
+    description = validators.UnicodeString()
+    date = validators.DateConverter()
+    shares = ForEach(ShareSchema)
+    
+
 class SpendController(BaseController):
     def index(self):
-        return render('/spend/index.mako')
+        return self.edit()
     
-    @validate(form=spend.new_spend_form, error_handler='index')
-    def new(self):
-        return str(self.form_result)
+    def edit(self, id=None):
+        c.users = meta.Session.query(model.User.id, model.User)
+        if id is None:
+            c.title = 'Add a New Expenditure'
+            c.expenditure = model.Expenditure()
+            c.expenditure.spender_id = request.environ['user'].id
+
+            num_residents = meta.Session.query(model.User).\
+                    filter_by(resident=True).count()
+            # Pre-populate split percentages for an even split.
+            c.values = {}
+            for ii, user_row in enumerate(c.users):
+                user_id, user = user_row
+                if user.resident:
+                    val = Decimal(100) / Decimal(num_residents)
+                else:
+                    val = 0
+                c.values['shares-%d.amount' % ii] = val
+        else:
+            c.title = 'Edit an Expenditure'
+            c.expenditure = meta.Session.query(model.Expenditure).get(id)
+        return render('/spend/index.mako')
+
+    @validate(schema=ExpenditureSchema(), form='edit', variable_decode=True)
+    def update(self, id=None):
+        # Either create a new object, or, if we're editing, get the
+        # old one
+        if id is None:
+            e = model.Expenditure()
+            meta.Session.add(e)
+            op = 'created'
+        else:
+            e = meta.Session.query(model.Expenditure).get(id)
+            op = 'updated'
+        
+        # Set the fields that were submitted
+        shares = self.form_result.pop('shares')
+        update_sar(e, self.form_result)
+        if e.id is not None:
+            e.update_split()
+
+        users = dict(meta.Session.query(model.User.id, model.User).all())
+        split_dict = {}
+        for share_params in shares:
+            user = users[share_params['user_id']]
+            split_dict[user] = Decimal(share_params['amount'])
+        e.split(split_dict)
+        
+        meta.Session.commit()
+       
+        show = ("Expenditure of %s paid for by %s %s." %
+                (e.amount, e.spender, op))
+        h.flash(show)
+
+        # Send email notification to involved users if they have an email set.
+        involved_users = set(sp.user for sp in e.splits if sp.share != 0)
+        involved_users.add(e.spender)
+        body = render('/emails/expenditure.txt',
+                      extra_vars={'expenditure': e,
+                                  'op': op})
+        g.handle_notification(involved_users, show, body)
+
+        return h.redirect_to('/')