lib/pagy.rb in pagy-0.4.1 vs lib/pagy.rb in pagy-0.4.2
- old
+ new
@@ -5,11 +5,11 @@
# items-per-page-limit, etc.), does some simple aritmetic and creates a very
# small object (~3k) with all is needed for pagination and navigation.
# Notice that it doesn't actually do any pagination, nor navigation... that is
# done with a few helpers in the Pagy::Backend and Pagy::Frontend modules.
-class Pagy ; VERSION = '0.4.1'
+class Pagy ; VERSION = '0.4.2'
autoload :Backend, 'pagy/backend'
autoload :Frontend, 'pagy/frontend'
class OutOfRangeError < StandardError; end
@@ -37,22 +37,22 @@
instance_variable_set(:"@#{k}", @opts.delete(k)) # set all the metrics variables
end
@pages = @last = [(@count.to_f / @limit).ceil, 1].max # cardinal and ordinal meanings
(1..@last).cover?(@page) || raise(OutOfRangeError, "expected :page in 1..#{@last}; got #{@page.inspect}")
@offset += @limit * (@page - 1) # initial offset + offset for pagination
- @limit = @count % @limit if @page == @last # adjust limit for last page (for pre-limit(ed) collection)
- @from = @count.zero? ? 0 : @offset+1 # page begins from item
+ @limit = @count % @limit if @page == @last # adjust limit for last page (for pre-limit(ed) collections)
+ @from = @count == 0 ? 0 : @offset+1 # page begins from item
@to = @offset + @limit # page ends to item
@prev = (@page-1 unless @page == 1) # nil if no prev page
@next = (@page+1 unless @page == @last) # nil if no next page
@series = [] # e.g. [1, :gap, 7, 8, "9", 10, 11, :gap, 36]
all = (0..@last+1) # page range with boundaries
around = ([@page-@before, 1].max .. [@page+@after, @last].min).to_a # before..after pages
row = (all.first(@initial+1) | around | all.last(@final+1)).sort # row of pages with boundaries
row.each_cons(2) do |a, b| # loop in consecutive pairs
- if a+1 == b; @series.push(a) # no gap -> no additions
- elsif a+2 == b; @series.push(a, a+1) # 1 page gap -> fill with missing page
- else @series.push(a, :gap) # n page gap -> add :gap
+ if a+1 == b ; @series.push(a) # no gap -> no additions
+ elsif a+2 == b ; @series.push(a, a+1) # 1 page gap -> fill with missing page
+ else @series.push(a, :gap) # n page gap -> add :gap
end # skip the end-boundary (last+1)
end
@series.shift # remove the start-boundary (0)
@series[@series.index(@page)] = @page.to_s # convert the current page to String
end