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module Mongoid::Acts::NestedSet
module Validation
# Warning: Very expensive! Do not use unless you know what you are doing.
# This method is only useful for determining if the entire tree is valid
def valid?
left_and_rights_valid? && no_duplicates_for_fields? && all_roots_valid?
end
# Warning: Very expensive! Do not use unless you know what you are doing.
def left_and_rights_valid?
all.detect { |node|
node.send(left_field_name).nil? ||
node.send(right_field_name).nil? ||
node.send(left_field_name) >= node.send(right_field_name) ||
!node.parent.nil? && (
node.send(left_field_name) <= node.parent.send(left_field_name) ||
node.send(right_field_name) >= node.parent.send(right_field_name)
)
}.nil?
end
# Warning: Very expensive! Do not use unless you know what you are doing.
def no_duplicates_for_fields?
roots.group_by{|record| scope_field_names.collect{|field| record.send(field.to_sym)}}.all? do |scope, grouped_roots|
[left_field_name, right_field_name].all? do |field|
grouped_roots.first.nested_set_scope.only(field).group_by {|doc| doc.send(field)}.all? {|k, v| v.size == 1}
end
end
end
# Wrapper for each_root_valid? that can deal with scope
# Warning: Very expensive! Do not use unless you know what you are doing.
def all_roots_valid?
if acts_as_nested_set_options[:scope]
roots.group_by{|record| scope_field_names.collect{|field| record.send(field.to_sym)}}.all? do |scope, grouped_roots|
each_root_valid?(grouped_roots)
end
else
each_root_valid?(roots)
end
end
def each_root_valid?(roots_to_validate)
right = 0
roots_to_validate.all? do |root|
(root.left > right && root.right > right).tap do
right = root.right
end
end
end
end
end
Version data entries
16 entries across 15 versions & 3 rubygems