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Contents
module Kaminari
module ActiveRecord
extend ActiveSupport::Concern
PER_PAGE = 25
included do
def self.inherited(kls)
# TERRIBLE HORRIBLE NO GOOD VERY BAD HACK: inheritable_attributes is not yet set here on AR 3.0
unless kls.default_scoping
new_inheritable_attributes = Hash[inheritable_attributes.map do |key, value|
[key, value.duplicable? ? value.dup : value]
end]
kls.instance_variable_set('@inheritable_attributes', new_inheritable_attributes)
end
kls.class_eval do
# page(5)
scope :page, lambda {|num|
offset(PER_PAGE * ([num.to_i, 1].max - 1)).limit(PER_PAGE)
} do
# page(3).per(10)
def per(num)
offset(offset_value / limit_value * num).limit(num)
end
def num_pages
(except(:offset, :limit).count.to_f / limit_value).ceil
end
def current_page
(offset_value / limit_value) + 1
end
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems