Rails - Jul 2011 - rails 3.0.9 ArgumentError (redundant UTF-8 sequence):

Hi guys,
I have a simple controller

  def gmap
    @intentsearches = Intentsearch.all
    logger.info @intentsearches
    respond_to do |format|
      format.html   {render :gmap}
      format.xml    {render :xml => @intentsearches }
      format.json   { render :json => @intentsearches }
    end
  end


and want a json response, but i do get the following error


Completed 500 Internal Server Error in 107ms

ArgumentError (redundant UTF-8 sequence):
  app/controllers/intentsearches_controller.rb:103:in `gmap''
  app/controllers/intentsearches_controller.rb:100:in `gmap''

Rendered
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/_trace.erb
(1.0ms)
Rendered
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
(36.4ms)
Rendered
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
within rescues/layout (40.7ms)


I am sending a http request with only one header param
Accept : application/json


Does anyone know about this issue?

Best,

philip

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Hi,

the problem occurs if you have columns with byte data.
to exclude them of the serialization is used

 def serializable_hash(options=nil)
    options ||= {}
    options.merge!( :except=> [:MY_BYTEDATA_COLUMN] ) if 
options[:except].blank?
    super(options)
  end



dc dieci wrote in post #1010652:
> Hi guys,
> I have a simple controller
>
>   def gmap
>     @intentsearches = Intentsearch.all
>     logger.info @intentsearches
>     respond_to do |format|
>       format.html   {render :gmap}
>       format.xml    {render :xml => @intentsearches }
>       format.json   { render :json => @intentsearches }
>     end
>   end
>
>
> and want a json response, but i do get the following error
>
>
> Completed 500 Internal Server Error in 107ms
>
> ArgumentError (redundant UTF-8 sequence):
>   app/controllers/intentsearches_controller.rb:103:in `gmap''
>   app/controllers/intentsearches_controller.rb:100:in `gmap''
>
> Rendered
> 
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/_trace.erb
> (1.0ms)
> Rendered
> 
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
> (36.4ms)
> Rendered
> 
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
> within rescues/layout (40.7ms)
>
>
> I am sending a http request with only one header param
> Accept : application/json
>
>
> Does anyone know about this issue?
>
> Best,
>
> philip
>
>
> update:
> some more investigation revealed the following.
>
> when i do call the to_json method in the console on a single object it
> all works fine.
> the error occurs only when i get a collection of objects.
>
>
> ArgumentError: redundant UTF-8 sequence
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:130:in
> `unpack''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:130:in
> `escape''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:125:in
> `gsub''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:125:in
> `escape''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:68:in
> `escape''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:173:in
> `encode_json''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:47:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:77:in
> `check_for_circular_references''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:45:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `encode_json''
>       from (irb):26:in `map''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `each''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `map''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `encode_json''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:47:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:77:in
> `check_for_circular_references''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:45:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `encode_json''
>       from (irb):26:in `map''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `each''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `map''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:247:in
> `encode_json''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:214:in
> `encode_json''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:214:in
> `map''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:214:in
> `encode_json''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:47:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:77:in
> `check_for_circular_references''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:45:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/json/encoding.rb:30:in
> `encode''
>       from
> 
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.9/lib/active_support/core_ext/object/to_json.rb:15:in
> `to_json''
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