Module: PaginateMe::PMController

Defined in:
lib/paginate_me/paginate.rb

Instance Method Summary collapse

Instance Method Details

#paginate_me(item, options = {}) ⇒ Object 



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# File 'lib/paginate_me/paginate.rb', line 3

def paginate_me(item, options = {})
  # TODO this entire method needs to be cleaned up
  #set generic param defaults
  @options = options
  @options[:params_var] ||= :page
  @options[:per_page] ||= 10
  @options[:current_page] = self.params[@options[:params_var]].to_i || 1
  @options[:order] ||= "#{item.to_s}.created_at ASC"

  current_page = @options[:current_page] <= 0 ? 1 : @options[:current_page]
  
  model_name = item.to_s
  model = model_name.singularize.camelize.constantize

  @options[:base_url] ||= method("#{model_name}_path").call

  instance_variable_set("@#{model_name}", 
  model
    .includes(@options[:includes])
    .where(@options[:where])
    .order(@options[:order])
    .limit(@options[:per_page])
    .offset((current_page-1) * @options[:per_page]) )
  
  @options[:page_total] = (model.includes(@options[:includes]).where(@options[:where]).count / @options[:per_page].to_f).ceil

  # set bounds for the current page, this makes sure the current_page variable stays within
  # the max and min number of items
  if @options[:current_page] <= 0
    @options[:current_page] = 1
  elsif @options[:current_page] > @options[:page_total]
    @options[:current_page] = @options[:page_total] - 1
  end
end