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module MongoMapper
module Plugins
module Pagination
class Proxy
instance_methods.each { |m| undef_method m unless m =~ /(^__|^nil\?$|^send$|proxy_|^object_id$)/ }
attr_accessor :subject
attr_reader :total_entries, :per_page, :current_page
alias limit per_page
def initialize(total_entries, current_page, per_page=nil)
@total_entries = total_entries.to_i
self.per_page = per_page
self.current_page = current_page
end
def total_pages
(total_entries / per_page.to_f).ceil
end
def out_of_bounds?
current_page > total_pages
end
def previous_page
current_page > 1 ? (current_page - 1) : nil
end
def next_page
current_page < total_pages ? (current_page + 1) : nil
end
def skip
(current_page - 1) * per_page
end
alias offset skip # for will paginate support
def send(method, *args, &block)
if respond_to?(method)
super
else
subject.send(method, *args, &block)
end
end
def ===(other)
other === subject
end
def method_missing(name, *args, &block)
@subject.send(name, *args, &block)
end
private
def per_page=(value)
value = 25 if value.blank?
@per_page = value.to_i
end
def current_page=(value)
value = value.to_i
value = 1 if value < 1
@current_page = value
end
end
end
end
end
Version data entries
15 entries across 15 versions & 2 rubygems