Handle expenditures
"""
+from __future__ import division
import logging
+import re
+import string
from decimal import Decimal, InvalidOperation
from bluechips.lib.base import *
from pylons import request, app_globals as g
-from pylons.decorators.rest import dispatch_on
from pylons.decorators import validate
+from pylons.decorators.secure import authenticate_form
+from pylons.controllers.util import abort
+import formencode
from formencode import validators, Schema
from formencode.foreach import ForEach
from formencode.variabledecode import NestedVariables
+from formencode.schema import SimpleFormValidator
from mailer import Message
log = logging.getLogger(__name__)
+class ExpenditureExpression(validators.FancyValidator):
+ goodChars = set('1234567890.+-/*() ')
+
+ def _to_python(self, value, state):
+ if (not set(value) <= self.goodChars or
+ re.search(r'([\+\-\*\/])\1', value)):
+ raise formencode.Invalid("Expression contains illegal characters", value, state)
+
+ if value == '':
+ return value, Decimal("0")
+
+ try:
+ number = eval(value)
+ return value, Decimal(str(number))
+ except:
+ raise formencode.Invalid("Not a valid mathematical expression", value, state)
+
+class TagValidator(validators.FancyValidator):
+ def _to_python(self, value,state):
+ try:
+ return set(map(string.strip, value.split(',')))
+ except:
+ raise formencode.Invalid("Unable to parse tags", value, state)
class ShareSchema(Schema):
"Validate individual user shares."
allow_extra_fields = False
user_id = validators.Int(not_empty=True)
- amount = validators.Number(not_empty=True)
+ amount = ExpenditureExpression()
+
+def validate_state(value_dict, state, validator):
+ if all(s['amount'] == 0 for s in value_dict['shares']):
+ return {'shares-0.amount': 'Need at least one non-zero share'}
+ValidateNotAllZero = SimpleFormValidator(validate_state)
+
+
+def prune_tags():
+ for tag in meta.Session.query(model.Tag).all():
+ if not tag.expenditures:
+ meta.Session.delete(tag)
+ meta.Session.commit()
class ExpenditureSchema(Schema):
"Validate an expenditure."
pre_validators = [NestedVariables()]
spender_id = validators.Int(not_empty=True)
amount = model.types.CurrencyValidator(not_empty=True)
- description = validators.UnicodeString()
+ description = validators.UnicodeString(not_empty=True)
+ tags = TagValidator()
date = validators.DateConverter()
shares = ForEach(ShareSchema)
+ chained_validators = [ValidateNotAllZero]
class SpendController(BaseController):
return self.edit()
def edit(self, id=None):
- c.users = meta.Session.query(model.User.id, model.User)
+ c.users = get_users()
if id is None:
c.title = 'Add a New Expenditure'
c.expenditure = model.Expenditure()
c.values = {}
for ii, user_row in enumerate(c.users):
user_id, user = user_row
+ val = 0
if user.resident:
- val = Decimal(100) / Decimal(num_residents)
- else:
- val = 0
+ val = Decimal(1)
c.values['shares-%d.amount' % ii] = val
+
+ c.values['tags'] = u""
else:
c.title = 'Edit an Expenditure'
c.expenditure = meta.Session.query(model.Expenditure).get(id)
+ if c.expenditure is None:
+ abort(404)
+ c.values = {}
+ for ii, user_row in enumerate(c.users):
+ user_id, user = user_row
+ shares_by_user = dict(((sp.user, sp.share_text) for sp
+ in c.expenditure.splits))
+ share = shares_by_user.get(user, '')
+ c.values['shares-%d.amount' % ii] = share
+
+ c.values['tags'] = ', '.join(c.expenditure.tags)
+
return render('/spend/index.mako')
+ @redirect_on_get('edit')
+ @authenticate_form
@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
op = 'created'
else:
e = meta.Session.query(model.Expenditure).get(id)
+ if e is None:
+ abort(404)
op = 'updated'
# Set the fields that were submitted
shares = self.form_result.pop('shares')
+ tags = self.form_result.pop('tags') or set()
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 = {}
+ split_text_dict = {}
for share_params in shares:
user = users[share_params['user_id']]
- split_dict[user] = Decimal(share_params['amount'])
- e.split(split_dict)
-
+ amount_text, amount = share_params['amount'] or ('',Decimal('0'))
+ split_dict[user] = amount
+ split_text_dict[user] = amount_text
+ e.split(split_dict, split_text_dict)
+ e.tags.clear()
+ e.tags |= tags
+
meta.Session.commit()
show = ("Expenditure of %s paid for by %s %s." %
'op': op})
g.handle_notification(involved_users, show, body)
+ prune_tags()
+
+ return h.redirect_to('/')
+
+ def delete(self, id):
+ c.title = 'Delete an Expenditure'
+ c.expenditure = meta.Session.query(model.Expenditure).get(id)
+ if c.expenditure is None:
+ abort(404)
+
+ return render('/spend/delete.mako')
+
+ @redirect_on_get('delete')
+ @authenticate_form
+ def destroy(self, id):
+ e = meta.Session.query(model.Expenditure).get(id)
+ if e is None:
+ abort(404)
+
+ if 'delete' in request.params:
+ meta.Session.delete(e)
+
+ meta.Session.commit()
+ show = ("Expenditure of %s paid for by %s deleted." %
+ (e.amount, e.spender))
+ h.flash(show)
+
+ 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': 'deleted'})
+ g.handle_notification(involved_users, show, body)
+
+ prune_tags()
+
return h.redirect_to('/')
projects / bluechips.git / blobdiff