how i add the sum in too this field

<tr>     <th>Day work</th>     <th>Start</th>     <th>End</th>     <th>Work time/Day</th> </tr>

  <% for shift in @shifts %> <tr>   <td><%= shift.date.strftime '%a' %> <%= shift.date.strftime '%d/%m/%Y' %></td>   <td><%= time_ampm shift.start %></td>   <td><%= time_ampm shift.end %></td>   <td><%= (shift.end - shift.start)/100 %></td> </tr>

now I want to add the sum of Work time/Day in to new field when i create

what is that command

to be honest, i don't really understand what you are trying to do, but if you just want to build a sum to put it into some field: initialize a variable with 0 (outside of your for-loop) and add any value you want to that variable.

sum = 0 rows.each do |row|   sum += row.value end puts sum

to be honest, i don’t really understand what you are trying to do, but

if you just want to build a sum to put it into some field:

initialize a variable with 0 (outside of your for-loop) and add any

value you want to that variable.

sum = 0

rows.each do |row|

sum += row.value

end

puts sum

Also, you should be able to do the following:

sum = rows.inject(0) { | sum, row | sum + row.value }

Good luck,

-Conrad

from "<%= (shift.end - shift.start)/100 %>" mean work time per day

now i want to add the sum of Total work time i to new field

i'm newbie for ROR please tell me step by step , thank you .

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