rails - how to render a JSON object in a view

right now I'm creating an array and using:

render :json => @comments

This would be fine for a simple JSON object, but right now my JSON object requires several helpers which is breaking everything and requiring hel开发者_StackOverflow中文版per includes in the controller which seems to cause more problems than solved.

So, how can I create this JSON object in a view, where I don't have to worry about doing anything or breaking anything when using a helper. Right now the way I'm making the JSON object in the controller looks little something like this? Help me migrate it to a view :)

# Build the JSON Search Normalized Object
@comments = Array.new

@conversation_comments.each do |comment|
  @comments << {
    :id => comment.id,
    :level => comment.level,
    :content => html_format(comment.content),
    :parent_id => comment.parent_id,
    :user_id => comment.user_id,
    :created_at => comment.created_at
  }
end

render :json => @comments

Thanks!

Or use:

<%= raw(@comments.to_json) %> 

to escape out any html encoding characters.

I would recommend that you write that code in an helper itself. Then just use the .to_json method on the array.

# application_helper.rb
def comments_as_json(comments)
  comments.collect do |comment|
    {
      :id => comment.id,
      :level => comment.level,
      :content => html_format(comment.content),
      :parent_id => comment.parent_id,
      :user_id => comment.user_id,
      :created_at => comment.created_at
    }
  end.to_json
end

# your_view.html.erb
<%= comments_as_json(@conversation_comments) %>

<%= @comments.to_json %>

should do the trick too.