Module: PaginationScope::Extention

Defined in:
lib/pagination_scope.rb

Instance Method Summary collapse

Instance Method Details

#count ⇒ Object 



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# File 'lib/pagination_scope.rb', line 35

def count
  @count ||= with_scope :find => proxy_options.except(:offset, :limit) do
    if proxy_scope.respond_to?(:proxy_options)
      select = proxy_scope.proxy_options[:group]
    end
    select ||= "#{table_name}.#{primary_key}"
    proxy_scope.count(:distinct => true, :select => select)
  end
end

#num_pages ⇒ Object 



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# File 'lib/pagination_scope.rb', line 45

def num_pages; (count.to_f/proxy_options[:limit]).ceil end

#page ⇒ Object 



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# File 'lib/pagination_scope.rb', line 46

def page; proxy_options[:offset]/proxy_options[:limit] + 1 end

#pages(window, left, right) ⇒ Object 



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# File 'lib/pagination_scope.rb', line 48

def pages(window, left, right)
  return [] if num_pages <= 1
  (1..num_pages).inject([]) do |result, i|
    i <= left || (num_pages - i) < right || (i-page).abs < window ?
    result << i : (result.last.nil? ? result : result << nil)
  end
end

#size ⇒ Object 



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# File 'lib/pagination_scope.rb', line 31

def size
  proxy_found.size
end