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Contents
require 'stringex'
module Spree
module Core
module Permalinks
extend ActiveSupport::Concern
included do
class_attribute :permalink_options
end
module ClassMethods
def make_permalink(options = {})
options[:field] ||= :permalink
self.permalink_options = options
before_validation(on: :create) { save_permalink }
end
def find_by_param(value, *args)
send("find_by_#{permalink_field}", value, *args)
end
def find_by_param!(value, *args)
send("find_by_#{permalink_field}!", value, *args)
end
def permalink_field
permalink_options[:field]
end
def permalink_prefix
permalink_options[:prefix] || ""
end
def permalink_length
permalink_options[:length] || 9
end
def permalink_order
order = permalink_options[:order]
"#{order} ASC," if order
end
end
def generate_permalink
"#{self.class.permalink_prefix}#{Array.new(self.class.permalink_length){ rand(9) }.join}"
end
def save_permalink(permalink_value = to_param)
with_lock do
permalink_value ||= generate_permalink
field = self.class.permalink_field
# Do other links exist with this permalink?
other = self.class.where("#{self.class.table_name}.#{field} LIKE ?", "#{permalink_value}%")
if other.any?
# Find the existing permalink with the highest number, and increment that number.
# (If none of the existing permalinks have a number, this will evaluate to 1.)
number = other.map { |o| o.send(field)[/-(\d+)$/, 1].to_i }.max + 1
permalink_value += "-#{number}"
end
write_attribute(field, permalink_value)
end
end
end
end
end
ActiveRecord::Base.send :include, Spree::Core::Permalinks
ActiveRecord::Relation.send :include, Spree::Core::Permalinks
Version data entries
37 entries across 37 versions & 1 rubygems