update_attributes is not working - ruby-on-rails

Question

Here's my controller
class ActivitiesController < ApplicationController
def exercises
if current_user.userprofile.present? #chef whether there is a userprofile object
#weeknum = current_user.userprofile.week
#dayly_activity = Activity.where(:week => 1, :day => 'Monday').first
end #end check userprofile
end
def updatexercises
respond_to do | format |
#dayly_activity = Activity.where(:week => 1, :day => 'Monday').first
#dayly_activity.update_attributes(params[:#dayly_activity])
#dayly_activity.save
format.html { render action: "exercises" }
end
end
end
And my template
<h1>WEEKLY EXERCICES</h1>
Day : <%= #dayly_activity.day %>
<%= form_for(#dayly_activity, :url => { :action => "updatexercises" }) do | f | %>
<table>
<tr>
<td>Jogging:</td>
<td>
<% list = (0..20).to_a %>
<%= f.select :jog, list %>
x 0.1 km
</td>
</tr>
<tr>
<td>Bicycling:</td>
<td>
<% list = (0..10).to_a %>
<%= f.select :bicycl, list %>
km
</td>
</tr>
<tr>
<td>Push ups:</td>
<td>
<% list = (0..20).to_a %>
<%= f.select :pushups, list %>
x 10 times
</td>
</tr>
<tr>
<td colspan = "2"><%= f.submit %></td>
</tr>
</table>
<% end %>
When I click the button, the Daily+activity object is not being saved. Am I missing some thing
EDIT
I've tried to hard code this way and it saving to the database.
#dayly_activity.jog = 17
#dayly_activity.pushups = 13
#dayly_activity.save
Obviously, the problem must be with the update_attributes

Answer 1

You need to use params[:dayly_activity] (drop the # sign).
Also, I would put these two lines :
#dayly_activity = Activity.where(:week => 1, :day => 'Monday').first
#dayly_activity.update_attributes(params[:dayly_activity])
Outside of your respond_to block (put them on top of it).
You can also drop the #dayly_activity.save, update_attributes do it automatically and will returns true/false if it works/fails.

Answer 2

You have error in [:#dayly_activity]
And in that code
#dayly_activity.update_attributes(params[:#dayly_activity])
#dayly_activity.save
save is useless. update_attributes saving the record.
It better to check result of update_attributes. So you can catch validation errors.
For example
if #dayly_activity.update_attributes(params[:dayly_activity])
redirect_to dayli_activity_path, :notice => "Updated"
else
render :edit
end