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require 'awesome_nested_set/tree'
module CollectiveIdea
module Acts
module NestedSet
module Model
module Rebuildable
# Rebuilds the left & rights if unset or invalid.
# Also very useful for converting from acts_as_tree.
def rebuild!(validate_nodes = true)
# default_scope with order may break database queries so we do all operation without scope
unscoped do
Tree.new(self, validate_nodes).rebuild!
end
end
def scope_for_rebuild
scope = proc {}
if acts_as_nested_set_options[:scope]
scope = proc {|node|
scope_column_names.inject("") {|str, column_name|
column_value = node.send(column_name)
cond = column_value.nil? ? "IS NULL" : "= #{connection.quote(column_value)}"
str << "AND #{connection.quote_column_name(column_name)} #{cond} "
}
}
end
scope
end
def order_for_rebuild
{
left_column_name => :asc,
right_column_name => :asc,
primary_key => :asc
}
end
end
end
end
end
end
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