Rails - Jul 2006 - The error occured while evaluating nil.gsub!

#{RAILS_ROOT}/app/controllers/start_controller.rb:13:in `create''
---

class StartController < ApplicationController

def create

#------------Remove Tag---------------------------

@name = params[:name]
@file = params[:filepath]

@file = @file.gsub!(/^.*(\\|\/)/, '''')   # replace html tags
with blank

post = Post.save(@params["removetag"])
end

end

-- 
Posted via http://www.ruby-forum.com/.

The problem is with the ''!'' in the gsub.  That indicates that
the
substitution should take place in the original string.

The cleanest solution is to simply remove the "@file =" from the
front:

@file.gsub!(/^.*(\\|\/)/, '''')   # replace html tags with blank

But you could also remove the ! and keep the variable assignment:

@file = @file.gsub(/^.*(\\|\/)/, '''')   # replace html tags
with blank


David
davids@tower-mt.com

Fird Abrar wrote:
> #{RAILS_ROOT}/app/controllers/start_controller.rb:13:in `create''
> ---
>
> class StartController < ApplicationController
>
> def create
>
> #------------Remove Tag---------------------------
>
> @name = params[:name]
> @file = params[:filepath]
>
> @file = @file.gsub!(/^.*(\\|\/)/, '''')   # replace html
tags with blank
>
> post = Post.save(@params["removetag"])
> end
>
> end

Then again, if I''d had my first cup of coffee already I''d have
noticed
that the REAL problem is that @file is nil, so you''ll need to examine 
how @file is set and test for it being set to nil before you do the gsub.

DOH!

David Schmidt (AFTER first cup of coffee...)
davids@tower-mt.com


David Schmidt wrote:
> The problem is with the ''!'' in the gsub.  That indicates
that the
> substitution should take place in the original string.
>
> The cleanest solution is to simply remove the "@file =" from the
front:
>
> @file.gsub!(/^.*(\\|\/)/, '''')   # replace html tags with
blank
>
> But you could also remove the ! and keep the variable assignment:
>
> @file = @file.gsub(/^.*(\\|\/)/, '''')   # replace html
tags with blank
>
>
> David
> davids@tower-mt.com
>
> Fird Abrar wrote:
>> #{RAILS_ROOT}/app/controllers/start_controller.rb:13:in
`create''
>> ---
>>
>> class StartController < ApplicationController
>>
>> def create
>>
>> #------------Remove Tag---------------------------
>>
>> @name = params[:name]
>> @file = params[:filepath]
>>
>> @file = @file.gsub!(/^.*(\\|\/)/, '''')   # replace
html tags with blank
>>
>> post = Post.save(@params["removetag"])
>> end
>>
>> end
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