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module NestedAncestryCommon
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extend ActiveSupport::Concern
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included do
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audited :except => [:title]
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has_associated_audits
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has_ancestry :orphan_strategy => :restrict
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before_validation :set_title
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after_save :set_other_titles, :on => [:update, :destroy]
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after_save :update_matchers, :on => :update, :if => Proc.new { |obj| obj.saved_change_to_title? }
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validate :title_and_lookup_key_length
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# attribute used by *_names and *_name methods. default is :name
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attr_name :title
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end
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# override title getter
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def title
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self[:title] || get_title
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end
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def parent_name
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parent.title if parent.present?
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end
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alias_method :to_label, :title
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def get_title
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return name if ancestry.empty?
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ancestors.map { |a| a.name + '/' }.join + name.to_s
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end
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alias_method :get_label, :get_title
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def to_param
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Parameterizable.parameterize("#{id}-#{title}")
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end
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module ClassMethods
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def nested_attribute_for(*opts)
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opts.each do |field|
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# Example method
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# def inherited_compute_profile_id
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# read_attribute(:compute_profile_id) || nested_compute_profile_id
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# end
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define_method "inherited_#{field}" do
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self[field] || nested(field)
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end
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# Example method - only override method generated by assocation if there is ancestry.
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# if ancestry.present?
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# def compute_profile
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# ComputeProfile.find_by_id(inherited_compute_profile_id)
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# end
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# end
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if (md = field.to_s.match(/(\w+)_id$/))
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define_method md[1] do
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if ancestry.present?
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klass = md[1].classify
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klass = "SmartProxy" if ["puppet_proxy", "puppet_ca_proxy"].include?(md[1])
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klass = 'Subnet::Ipv4' if md[1] == 'subnet'
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klass = 'Subnet::Ipv6' if md[1] == 'subnet6'
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klass.classify.constantize.find_by_id(send("inherited_#{field}"))
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else
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# () is required. Otherwise, get RuntimeError: implicit argument passing of super from method defined by define_method() is not supported. Specify all arguments explicitly.
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super()
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end
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end
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end
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end
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end
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end
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def nested(attr)
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self.class.sort_by_ancestry(ancestors.where("#{attr} is not NULL")).last.try(attr) if ancestry.present?
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end
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private
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def set_title
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self.title = get_title if (name_changed? || ancestry_changed? || title.blank?)
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end
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def set_other_titles
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if saved_change_to_name? || saved_change_to_ancestry?
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self.class.where('ancestry IS NOT NULL').find_each do |obj|
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if obj.path_ids.include?(self.id)
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obj.update(:title => obj.get_title)
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end
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end
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end
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end
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def obj_type
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self.class.to_s.downcase
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end
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def update_matchers
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lookup_values = LookupValue.where(:match => "#{obj_type}=#{title_before_last_save}")
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lookup_values.update_all(:match => "#{obj_type}=#{title}")
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end
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# This validation is because lookup_value has an attribute `match` that cannot be turned to a test field do to
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# an index set on it and problems with mysql indexes on test fields.
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# If the index can be fixed, `match` should be turned into text and then this validation should be removed
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def title_and_lookup_key_length
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if name.present?
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# The match is defined (example for hostgroup) "hostgroup=" + hostgroup.title so the length of "hostgroup=" needs to be added to the
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# total length of the matcher that will be created
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# obj_type will be "hostgroup" and another character is added for the "=" sign
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length_of_matcher = obj_type.length + 1
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# the parent title + "/" is added to the name to create the title
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# If the parent_id doesn't exist, don't let errors be raised by this validation
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parent_model = begin
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parent
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rescue ActiveRecord::RecordNotFound
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nil
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end
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length_of_matcher += parent_model.title.length + 1 if parent_model.present?
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max_length_for_name = 255 - length_of_matcher
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current_title_length = max_length_for_name - name.length
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errors.add(:name, n_("is too long (maximum is 1 character)", "is too long (maximum is %s characters)", max_length_for_name) % max_length_for_name) if (errors[:name].empty? && current_title_length < 0)
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end
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end
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end
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