Class: Ramaze::Helper::Paginate::Paginator::ArrayPager

Inherits:

Object

• Object
• Ramaze::Helper::Paginate::Paginator::ArrayPager

show all

Includes:

Enumerable

Defined in:

lib/ramaze/helper/paginate.rb

Overview

Instance Method Summary (collapse)

• - (Object) current_page
• - (Object) each(&block)
• - (Boolean) empty?
• - (Boolean) first_page?
• - (ArrayPager) initialize(array, page, limit) constructor

  A new instance of ArrayPager.

• - (Boolean) last_page?
• - (Object) next_page
• - (Object) page_count
• - (Object) prev_page
• - (Object) size

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# File 'lib/ramaze/helper/paginate.rb', line 241

def initialize(array, page, limit)
  @array, @page, @limit = array, page, limit
  @page = page_count if @page > page_count
end

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# File 'lib/ramaze/helper/paginate.rb', line 259

def current_page
  @page
end

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# File 'lib/ramaze/helper/paginate.rb', line 279

def each(&block)
  from = ((@page - 1) * @limit)
  to = from + @limit

  a = @array[from...to] || []
  a.each(&block)
end

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# File 'lib/ramaze/helper/paginate.rb', line 250

def empty?
  @array.empty?
end

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# File 'lib/ramaze/helper/paginate.rb', line 271

def first_page?
  @page <= 1
end

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# File 'lib/ramaze/helper/paginate.rb', line 275

def last_page?
  page_count == @page
end

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# File 'lib/ramaze/helper/paginate.rb', line 263

def next_page
  page_count == @page ? nil : @page + 1
end

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# File 'lib/ramaze/helper/paginate.rb', line 254

def page_count
  pages, rest = size.divmod(@limit)
  rest == 0 ? pages : pages + 1
end

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# File 'lib/ramaze/helper/paginate.rb', line 267

def prev_page
  @page <= 1 ? nil : @page - 1
end

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# File 'lib/ramaze/helper/paginate.rb', line 246

def size
  @array.size
end