Class: Redmine::Pagination::Paginator

Inherits:
Object
  • Object
show all
Defined in:
lib/redmine/pagination.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Paginator

Returns a new instance of Paginator.



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# File 'lib/redmine/pagination.rb', line 25

def initialize(*args)
  if args.first.is_a?(ActionController::Base)
    args.shift
    ActiveSupport::Deprecation.warn "Paginator no longer takes a controller instance as the first argument. Remove it from #new arguments."
  end
  item_count, per_page, page, page_param = *args

  @item_count = item_count
  @per_page = per_page
  page = (page || 1).to_i
  if page < 1
    page = 1
  end
  @page = page
  @page_param = page_param || :page
end

Instance Attribute Details

#item_count ⇒ Object (readonly)

Returns the value of attribute item_count.



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# File 'lib/redmine/pagination.rb', line 23

def item_count
  @item_count
end

#page ⇒ Object (readonly)

Returns the value of attribute page.



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# File 'lib/redmine/pagination.rb', line 23

def page
  @page
end

#page_param ⇒ Object (readonly)

Returns the value of attribute page_param.



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# File 'lib/redmine/pagination.rb', line 23

def page_param
  @page_param
end

#per_page ⇒ Object (readonly)

Returns the value of attribute per_page.



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# File 'lib/redmine/pagination.rb', line 23

def per_page
  @per_page
end

Instance Method Details

#current ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 102

def current
  ActiveSupport::Deprecation.warn "Paginator#current will be removed. Use .offset instead of .current.offset."
  self
end

#first_item ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 74

def first_item
  item_count == 0 ? 0 : (offset + 1)
end

#first_page ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 46

def first_page
  if item_count > 0
    1
  end
end

#items_per_page ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 97

def items_per_page
  ActiveSupport::Deprecation.warn "Paginator#items_per_page will be removed. Use #per_page instead."
  per_page
end

#last_item ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 78

def last_item
  l = first_item + per_page - 1
  l > item_count ? item_count : l
end

#last_page ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 64

def last_page
  if item_count > 0
    (item_count - 1) / per_page + 1
  end
end

#linked_pages ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 83

def linked_pages
  pages = []
  if item_count > 0
    pages += [first_page, page, last_page]
    pages += ((page-2)..(page+2)).to_a.select {|p| p > first_page && p < last_page}
  end
  pages = pages.compact.uniq.sort
  if pages.size > 1
    pages
  else
    []
  end
end

#multiple_pages? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/redmine/pagination.rb', line 70

def multiple_pages?
  per_page < item_count
end

#next_page ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 58

def next_page
  if last_item < item_count
    page + 1
  end
end

#offset ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 42

def offset
  (page - 1) * per_page
end

#previous_page ⇒ Object 



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# File 'lib/redmine/pagination.rb', line 52

def previous_page
  if page > 1
    page - 1
  end
end