add some validations
authorDavid A. Cuadrado <krawek@gmail.com>
Wed, 13 Apr 2011 01:06:23 +0000 (20:06 -0500)
committerDavid A. Cuadrado <krawek@gmail.com>
Wed, 13 Apr 2011 01:06:23 +0000 (20:06 -0500)
commitc470d9ce37ba54e24185c975ee1cf2d996e8da0f
treeb25643d27792894cff6487b8e24565f0b613ec80
parentfaecb47df0d9475696f01c898e26673f035167ba
add some validations

Signed-off-by: David A. Cuadrado <krawek@gmail.com>
app/models/activity.rb