Hey all, I'mt not too familiar with searchlogic plugin for rails (I did view the railscasts but wasn't helpful in relation to the specific code below). Can anyone briefly describe how it is being used in the three methods below? Thanks for any response.

 def extract_order
@order_by = if params[:order].present?
  field = params[:order].gsub(".", "_")
  field = field.starts_with?('-') ? 'descend_by_'+field[1..-1] : 'ascend_by_'+field
  field.to_sym
else
  # Workaround
  'searchlogic'.to_sym
end
end

def find_resources
@search_conditions = params[:search_conditions] || {} # See http://www.binarylogic.com/2008/11/30/searchlogic-1-5-7-complex-searching-no-longer-a-problem/
@resources = @resource_model.send(@order_by).searchlogic(:conditions => @search_conditions) 
end

def apply_filters
f = filter_by
f.each do |filter_field|
  filter_constraints = params[filter_field.to_sym]
  if filter_constraints.present?
    # Apply searchlogic's scope
    @resources.send(filter_field,filter_constraints)
  end
end
end