| Class | ActionController::Pagination::Paginator::Page |
| In: |
vendor/rails/actionpack/lib/action_controller/pagination.rb
|
| Parent: | Object |
A class representing a single page in a paginator.
| number | -> | to_i |
| number | [R] | |
| paginator | [R] |
Creates a new Page for the given paginator with the index number. If number is not in the range of valid page numbers or is not a number at all, it defaults to 1.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 290
290: def initialize(paginator, number)
291: @paginator = paginator
292: @number = number.to_i
293: @number = 1 unless @paginator.has_page_number? @number
294: end
Compares two Page objects and returns -1 if the left-hand page comes before the right-hand page, 0 if the pages are equal, and 1 if the left-hand page comes after the right-hand page. Raises ArgumentError if the pages do not belong to the same Paginator object.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 311
311: def <=>(page)
312: raise ArgumentError unless @paginator == page.paginator
313: @number <=> page.number
314: end
Compares two Page objects and returns true when they represent the same page (i.e., their paginators are the same and they have the same page number).
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 301
301: def ==(page)
302: return false if page.nil?
303: @paginator == page.paginator and
304: @number == page.number
305: end
Returns true if this page is the first page in the paginator.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 332
332: def first?
333: self == @paginator.first
334: end
Returns the number of the first item displayed.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 322
322: def first_item
323: offset + 1
324: end
Returns true if this page is the last page in the paginator.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 337
337: def last?
338: self == @paginator.last
339: end
Returns the number of the last item displayed.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 327
327: def last_item
328: [@paginator.items_per_page * @number, @paginator.item_count].min
329: end
Returns the limit/offset array for this page.
# File vendor/rails/actionpack/lib/action_controller/pagination.rb, line 360
360: def to_sql
361: [@paginator.items_per_page, offset]
362: end