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Contents
module Adminos::NestedSet::MaterializePath
extend ActiveSupport::Concern
module ClassMethods
def materialize_path(*args)
options = args.extract_options!
prefix = options.delete(:prefix) || nil
delimiter = options.delete(:delimiter) || '/'
path_column = options.delete(:path_column) || 'path'
segment_accessor = options.delete(:segment_accessor) || 'slug'
validates segment_accessor, presence: true
validate :path_column_uniqueness
define_method :path_column_uniqueness do
twins = self.class.where('id != ?', self.id).
where(path_column => self.ancestors.map do |ancestor|
ancestor[segment_accessor]
end.push(self[segment_accessor]).join(delimiter))
errors.add(segment_accessor, :taken) if twins.present?
end
after_save do |object|
# Some scope is being added when turning published on/off
path_segments = object.class.unscoped do
object.self_and_ancestors.map { |obj| obj.send(segment_accessor) }
end
path_segments.unshift prefix if prefix
ancestors_path = path_segments.join(delimiter)
updates = {
object.id => ancestors_path
}
object.descendants.each do |descendant|
descendant.depth += 1 if prefix
path_segments[descendant.depth] = descendant.send(segment_accessor)
updates[descendant.id] = path_segments[0..descendant.depth].join(delimiter)
end
# No callbacks for descendatns
updates.each do |id, path|
self.class.where(id: id).update_all(path_column => path)
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems