Ruby on Rails

The problem you're running into has to do with encoding mismatch
(under ruby 1.9) in some data you're munging/rendering in that view.
First thing you should do is check your config/setup regarding
encoding:
$ ./script/rails console...> __ENCODING__ => #<Encoding:UTF-8>
> Encoding.default_internal => #<Encoding:UTF-8>
> Encoding.default_external => #<Encoding:UTF-8>
> ActiveRecord::Base.configurations[Rails.env]["encoding"] => "utf8" ...
Assuming your stack is properly setup for utf-8, then the most likely
culprit is that you have some non-utf-8 binary char(s) in some data
that is causing the problem (probably copy/pasted from ms-word into
some form).
Not the same error, but here's an example of a similar encoding-
related problem:
> s = "foo™" => "foo™"
> s.encoding
=> #<Encoding:UTF-8>

> s.sub(/foo/, 'bar')
=> "bar™"

> s2 = "foo™".force_encoding("ASCII")
=> "foo\xE2\x84\xA2"

> s2.encoding
=> #<Encoding:US-ASCII>

> s2.sub(/foo/, 'bar')
ArgumentError: invalid byte sequence in US-ASCII
...

You can test/log the underlying data you're trying to render in that
view to see what exactly is causing the problem in order to delete/
replace it.

The bigger issue is ... how to prevent and/or deal with this
particular case when it happens again? Probably many diff ways to
deal with this, but in such cases where I need to force the encoding
to be valid utf-8 for a given submitted string no matter what, I've
used something like the following:

...
IC_UTF8 = Iconv.new('UTF-8//IGNORE', 'UTF-8')
...

def force_utf8(str)
#note added extra space plus chop to fix certain cases.
IC_UTF8.iconv("#{str} ")[0..-2]
end
...

> s2
=> "foo\xE2\x84\xA2"

> s2.encoding
=> #<Encoding:US-ASCII>

> s3 = force_utf8(s2)
=> "foo™"

> s3.encoding
=> #<Encoding:UTF-8>

> s3.sub(/foo/, 'bar')
=> "bar™"

Jeff

On Dec 29 2011, 6:45 pm, gerbdla <gerb...@gmail.com> wrote:
> yeah this is actually in a view that the error is occurring.  I have
> tried to put this encoding statement in the view
> but to no avail.  hopefully someone has had this problem and can
> instruct me .  It seems
> like this would be a common error.
>
> On Dec 29, 3:30 pm, Javier Quarite <jquari...@gmail.com> wrote:
>
>
>
>
>
>
>
> > On Thu, Dec 29, 2011 at 6:19 PM, gerbdla <gerb...@gmail.com> wrote:
> > > This is the full error anyone else having this issue?
>
> > >  incompatible character encodings: UTF-8 and ASCII-8BIT
> > >  activesupport (3.0.9) lib/active_support/core_ext/string/
> > > output_safety.rb:82:in `concat'
>
> > Well I'm not having the same issue, but when I wanted to create a csv file
> > in my controller and one of the cells contains
> > this -> `    rails is expecting something else, so I just add at the
> > beggining of my controller the following
>
> > #encoding: utf8
>
> > and worked, maybe it helps
>
> > Javier

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