Rails - Apr 2011 - TypeError (Cannot visit Category):

Hey all,

this order_by method right here is throwing an exception:

@resource_model.order_by(@order_field)

The exception is "TypeError (Cannot visit Category):"

I think it''s returning this:

#<ActiveRecord::Relation:0x000001038701f0>

I have no clue why. It''s supposed to be returning a string like
''controller asc''.


This is the lead up to the error:

 def find_options
    extract_pagination
    extract_order
    opts = {:page => @will_paginate_page, :per_page =>
@will_paginate_per_page, :order => @will_paginate_order}
    opts.merge(additional_options)
  end


 def additional_options
    {}
  end

 def extract_pagination
    @will_paginate_page = params[:page] || 1
   @will_paginate_per_page = params[:per_page] || 20
  end

  def extract_order
    if params[:order].present?
      @order_field = params[:order]
    end
     @will_paginate_order = @resource_model.order_by(@order_field)
  end

#my category model inherits from restfulmodel.rb:

def self.order_by(field)
    field = field.to_s
    if field.blank?
      return default_order ? order_by(default_order) : scoped(nil) #if
returned value of default_order call exists, self-invoke order_by
    end
     scope = field.starts_with?(''-'') ?
''descend_by_'' + field.from(1) :
''ascend_by_'' + field
    send(scope)
  end

#then my category model has this:
  def self.default_order
     ''controller''
  end

  scope :ascend_by_controller, :order => ''controller asc''


Something is flawed with that order_by method. It''s not sending
ascend_by_controller to the category model and then returning the value
of the scope :ascend_by_controller. Am I missing something here?

@will_paginate_order should hold a string like ''controller
asc''

Thanks for response.

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