Rails - May 2010 - A Ruby problem calculation problem - please help.

I do not think that my problem is Rails but just my lack of
understanding of Ruby.

I am using ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux] and Rails 2.3.5

Code: First I evaluate @tot_hb to decide what discount is to be
applied. no problems here

      if @tot_hb > 0
        if @tot_hb > 399900
          @bd_disc = 0.80
        elsif @tot_hb > 199900
          @bd_disc = 0.85
        elsif @tot_hb > 99900
          @bd_disc = 0.90
        elsif @tot_hb > 49900
          @bd_disc = 0.95
         end
      end

Then I attempt to update @client.bd_rate with the value that is in
@db_disc. @client.bd_rate is a MySql Decimal(3,2) field with a default
of zero

@client.bd_rate = @db_disc

At this point things go pear shaped and I get the message: nil can''t
be coerced into Fixnum. I know that @db_disc has a value as if I do a
puts the value is displayed as 0.80

It would appear that it is some sort of conversion problem? Help would
be very much appreciated.

Regards,

Paul Thompson

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Quoting Paul Jonathan Thompson
<rails001-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> I do not think that my problem is Rails but just my lack of
> understanding of Ruby.
> 
> I am using ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux] and Rails
2.3.5
> 
> Code: First I evaluate @tot_hb to decide what discount is to be
> applied. no problems here
> 
>       if @tot_hb > 0
>         if @tot_hb > 399900
>           @bd_disc = 0.80
>         elsif @tot_hb > 199900
>           @bd_disc = 0.85
>         elsif @tot_hb > 99900
>           @bd_disc = 0.90
>         elsif @tot_hb > 49900
>           @bd_disc = 0.95
>          end
>       end
> 
> Then I attempt to update @client.bd_rate with the value that is in
> @db_disc. @client.bd_rate is a MySql Decimal(3,2) field with a default
> of zero
> 
> @client.bd_rate = @db_disc
> 
> At this point things go pear shaped and I get the message: nil
can''t
> be coerced into Fixnum. I know that @db_disc has a value as if I do a
> puts the value is displayed as 0.80
> 
> It would appear that it is some sort of conversion problem? Help would
> be very much appreciated.
> 
Typo in program or e-mail: @bd_disC OR @db_disc?

Jeffrey

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Sorry guys, I got this sorted.

On 17 May 2010 10:03, Paul Jonathan Thompson
<rails001-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I do not think that my problem is Rails but just my lack of
> understanding of Ruby.
>
> I am using ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux] and Rails
2.3.5
>
> Code: First I evaluate @tot_hb to decide what discount is to be
> applied. no problems here
>
>      if @tot_hb > 0
>        if @tot_hb > 399900
>          @bd_disc = 0.80
>        elsif @tot_hb > 199900
>          @bd_disc = 0.85
>        elsif @tot_hb > 99900
>          @bd_disc = 0.90
>        elsif @tot_hb > 49900
>          @bd_disc = 0.95
>         end
>      end
>
> Then I attempt to update @client.bd_rate with the value that is in
> @db_disc. @client.bd_rate is a MySql Decimal(3,2) field with a default
> of zero
>
> @client.bd_rate = @db_disc
>
> At this point things go pear shaped and I get the message: nil
can''t
> be coerced into Fixnum. I know that @db_disc has a value as if I do a
> puts the value is displayed as 0.80
>
> It would appear that it is some sort of conversion problem? Help would
> be very much appreciated.
>
> Regards,
>
> Paul Thompson
>
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