Class: GearedPagination::Recordset

Inherits:
Object
  • Object
show all
Defined in:
lib/geared_pagination/recordset.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(records, per_page: nil) ⇒ Recordset

Returns a new instance of Recordset.



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# File 'lib/geared_pagination/recordset.rb', line 8

def initialize(records, per_page: nil)
  @records = records
  @ratios  = GearedPagination::Ratios.new(per_page)
end

Instance Attribute Details

#ratios ⇒ Object (readonly)

Returns the value of attribute ratios.



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# File 'lib/geared_pagination/recordset.rb', line 6

def ratios
  @ratios
end

#records ⇒ Object (readonly)

Returns the value of attribute records.



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# File 'lib/geared_pagination/recordset.rb', line 6

def records
  @records
end

Instance Method Details

#page(number) ⇒ Object 



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# File 'lib/geared_pagination/recordset.rb', line 13

def page(number)
  GearedPagination::Page.new(number, from: self)
end

#page_count ⇒ Object 



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# File 'lib/geared_pagination/recordset.rb', line 17

def page_count
  @page_count ||= begin
    count    = 0
    residual = records_count

    while residual > 0
      count   += 1
      residual = residual - ratios[count]
    end

    count
  end
end

#records_count ⇒ Object 



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# File 'lib/geared_pagination/recordset.rb', line 31

def records_count
  @records_count ||= records.unscope(:limit).unscope(:offset).count
end