Class: RailsPulse::Paginator

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_pulse/paginator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(count:, page:, limit:) ⇒ Paginator

Returns a new instance of Paginator.



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# File 'lib/rails_pulse/paginator.rb', line 5

def initialize(count:, page:, limit:)
  @count = count
  @limit = limit
  @page  = page.clamp(1, last)
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.



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# File 'lib/rails_pulse/paginator.rb', line 3

def count
  @count
end

#limit ⇒ Object (readonly)

Returns the value of attribute limit.



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# File 'lib/rails_pulse/paginator.rb', line 3

def limit
  @limit
end

#page ⇒ Object (readonly)

Returns the value of attribute page.



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# File 'lib/rails_pulse/paginator.rb', line 3

def page
  @page
end

Instance Method Details

#last ⇒ Object 



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# File 'lib/rails_pulse/paginator.rb', line 11

def last
  [ (count.to_f / limit).ceil, 1 ].max
end

#next ⇒ Object 



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# File 'lib/rails_pulse/paginator.rb', line 19

def next
  page < last ? page + 1 : nil
end

#previous ⇒ Object 



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# File 'lib/rails_pulse/paginator.rb', line 15

def previous
  page > 1 ? page - 1 : nil
end