Rails params permit I am getting error -

i trying create form putting hidden value generating array :

"comment"=>{"comment"=>"sss", "feed_id"=>"354"}, "commit"=>"comment"} 

but when trying use in controller permit produce error controller query :

@feeds= feed.find(params["comment"]["feed_id"])  

this @feeds work great when trying use permit params showing error

actioncontroller::parametermissing (param missing or value empty: feed): 

to permit using query :

 def feed_params        #params.require(:feed).permit(comment: :feed_id)       params.require(:feed).permit(comment: [ :feed_id, :comment ])       #params[:market_place]     end 

when adding here in controller :

@feeds= feed.find(feed_params) 

i getting error

actioncontroller::parametermissing (param missing or value empty: feed): 

and form :

 <%= form_for(@comment,:remote  => true)  |f|  %>   <%= f.text_area :comment,  class:"form-control  post required" %> <%= f.hidden_field :feed_id, {:value => @feed} %> 

if write feed_params require(:feed), rails expect params have "feed" key , value, not. form comments, define comment_params method. define this:

def comment_params   params.require(:comment).permit(:comment, :feed_id) end 

and find feed this:

@feeds= feed.find(comment_params["feed_id"])  

and should set.