Ruby on Rails

On 28 August 2012 16:40, sameena Khan <emailtosameenakhan@gmail.com> wrote:
> @colin if i have two timings9:30 PM and 10:52 i got correct output here it
> is 10 hours : 38mins
> and if i give Time.now as one input and 10:30 AM as another input i got 2
> hours : mins

The best thing is to put in some diagnostic code and work out what is
happening. Remember Time.now is not a time of day it is a date and
time. Hopefully your other times are also full date and time objects.

Colin

>
>
> i dont think it is timezone issue because if there are two fixed inputs and
> if i subtract them with my code i get the correct output the only issue is
> with Time.now as a input i guess. i wanna calculate the working hours with
> mins of an employee. As i explained before if the employee checkin and
> checkout time is there i can able to calculate it and if i wanna show right
> from his checkin until he checkout every min of his working hours and mins i
> have to go for Time.now as another input.
>
> On Tue, Aug 28, 2012 at 8:05 PM, Colin Law <clanlaw@googlemail.com> wrote:
>>
>> On 28 August 2012 15:18, Khan <emailtosameenakhan@gmail.com> wrote:
>> > Hey everyone
>> >
>> > i am trying to subtract two different times.i am getting
>> > right
>> > when i have two fixed times.
>> > here is my code
>> >
>> >
>> > def hour_min(last,first)
>> >
>> > difference = last - first
>> > seconds = difference % 60
>> > difference = (difference - seconds) / 60
>> > minutes = difference % 60
>> > difference = (difference - minutes) / 60
>> > hours = difference % 24
>> >
>> > return hours,minutes
>> >
>> > end
>> > if last =9:30 PM and first = 10:52 i get after subtraction 10 hours : 38
>> > mins but the problem is with Time.now
>> > if last = Time.now and first = 10:30 am it is give improper output
>> >
>> >
>> >
>> > this is my view
>> > <% hour_min = hour_min(Time.now.to_i,cin.first.to_i)%>
>>
>> You should not need to call to_i, just pass in the times, the
>> difference of two times is the difference in seconds.
>
>
> If i don't call with to_i the output will be with decimal(i.e., 3.o hours )
> to convert them i went with to_i
>>
>>
>> > <%="#{hour_min[0]}Hour : #{hour_min[1]}Min"%>
>> >
>> > My problem is if i have two fixed timings i am getting correct but when
>> > i
>> > have to calculate with Time.now i am getting wrong answer can any one
>> > help
>> > me out
>>
>> Have a look at the Rails Guide on debugging which will show you
>> techniques that can be used to debug the code. I would start just by
>> running the console (rails c) and try calling your method with various
>> values and see what happens. You can use puts in the method to print
>> intermediate results and see what is happening.
>>
>> What results are you getting? Is it a number of hours out? If so
>> then I guess it is a time zone issue.
>>
>> Colin
>>
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>
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