Error : can't dup NilClass, in Heroku

Rails
1

Hi,
The application is deployed on Heroku, is based on Ruby 3.2.1 and
Rails
1.9.2. Sometimes a function of my props starts throwing this error "
StringUtils:dateTimeFromString, str , can’t dup NilClass" and I don’t
understand the cause. it’s my function:

require ‘time’
module StringUtils
DATE_FORMAT_YYYY_MM_DD=’%Y-%m-%d’
DATE_FORMAT_HH_MM_SS=’%H:%M:%S’
DATE_FORMAT_YYYY_MM_DD_HH_MM_SS=’%Y-%m-%d %H:%M:%S’
DATE_FORMAT_YYYY_MM_DD_T_HH_MM_SS=’%Y-%m-%dT%H:%M:%S’
DATE_FORMAT_YYYYMMDDHHMMSS=’%Y%m%d%H%M%S’
DATE_FORMAT_DAY_OF_WEEK="%A"

def stringFormatDate(strDate,format)
if strDate!=nil
begin
return Time.parse(strDate).strftime(format)
rescue
Rails.logger.error(“StringUtils:stringFormatDate, str
#{strDate},
#{$!}”)
end
end
return strDate
end

  • def dateTimeFromString(strDate) *
    begin
    return Time.parse(strDate)
    rescue
    Rails.logger.error(“StringUtils:dateTimeFromString, str
    #{strDate},
    #{$!}”)
    return nil
    end
    end
    end

I hope your comments, Thanks

2

On 21 May 2012, at 17:07, johan rincon [email protected] wrote:

DATE_FORMAT_DAY_OF_WEEK=“%A”
return strDate
end
Can you provide a stack trace from your logs please.

3

Hi,
This is:

" str , can’t dup NilClass,
[“C:/Ruby192/lib/ruby/1.9.1/date/format.rb:1031:in `dup’”,
“C:/Ruby192/lib/ruby/1.9.1/date/format.rb:1031:in `_parse’”,
“C:/Ruby192/lib/ruby/1.9.1/time.rb:261:in `parse’”, “g.rb:29:in
`dateTimeFromString’”, “g.rb:40:in `initialize’”, “g.rb:45:in `new’”,
“g.rb:45:in `'”]"

I reproduced the error and I detected that when the parameter that
was
sent to the function is nil. But I keep trying because the field is
database and should not be null according to business rules.

I was confused because I found forums where suggested using the
statement ’ unloadable ’ but was inconclusive.
If you have another point of view will be welcome,
thanks

2012/5/21 Jeremy W. [email protected]

require ‘time’
if strDate!=nil

  • def dateTimeFromString(strDate) *

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–
Johan Rincn
Ing. en Informtica
UNET