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class LookupKey < ActiveRecord::Base
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include Authorizable
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include CounterCacheFix
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KEY_TYPES = [N_("string"), N_("boolean"), N_("integer"), N_("real"), N_("array"), N_("hash"), N_("yaml"), N_("json")]
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VALIDATOR_TYPES = [N_("regexp"), N_("list") ]
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KEY_DELM = ","
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EQ_DELM = "="
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VALUE_REGEX =/\A[^#{KEY_DELM}]+#{EQ_DELM}[^#{KEY_DELM}]+(#{KEY_DELM}[^#{KEY_DELM}]+#{EQ_DELM}[^#{KEY_DELM}]+)*\Z/
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audited :associated_with => :audit_class, :allow_mass_assignment => true, :except => :lookup_values_count
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validates_lengths_from_database
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serialize :default_value
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belongs_to :puppetclass, :inverse_of => :lookup_keys, :counter_cache => true
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has_many :environment_classes, :dependent => :destroy
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has_many :environments, :through => :environment_classes, :uniq => true
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has_many :param_classes, :through => :environment_classes, :source => :puppetclass
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def param_class
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param_classes.first
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end
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def audit_class
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param_class || puppetclass
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end
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has_many :lookup_values, :dependent => :destroy, :inverse_of => :lookup_key
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accepts_nested_attributes_for :lookup_values,
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:reject_if => :reject_invalid_lookup_values,
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:allow_destroy => true
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before_validation :cast_default_value, :unless => Proc.new{|p| p.use_puppet_default }
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validates :key, :uniqueness => {:scope => :is_param }, :unless => Proc.new{|p| p.is_param?}
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validates :key, :presence => true
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validates :puppetclass, :presence => true, :unless => Proc.new {|k| k.is_param?}
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validates :validator_type, :inclusion => { :in => VALIDATOR_TYPES, :message => N_("invalid")}, :allow_blank => true, :allow_nil => true
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validates :key_type, :inclusion => {:in => KEY_TYPES, :message => N_("invalid")}, :allow_blank => true, :allow_nil => true
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validate :validate_default_value
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validates_associated :lookup_values
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validate :ensure_type, :disable_merge_overrides, :disable_avoid_duplicates, :disable_merge_default
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before_save :sanitize_path
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attr_name :key
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scoped_search :on => :key, :complete_value => true, :default_order => true
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scoped_search :on => :lookup_values_count, :rename => :values_count
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scoped_search :on => :override, :complete_value => {:true => true, :false => false}
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scoped_search :on => :merge_overrides, :complete_value => {:true => true, :false => false}
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scoped_search :on => :merge_default, :complete_value => {:true => true, :false => false}
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scoped_search :on => :avoid_duplicates, :complete_value => {:true => true, :false => false}
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scoped_search :in => :param_classes, :on => :name, :rename => :puppetclass, :complete_value => true
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scoped_search :in => :lookup_values, :on => :value, :rename => :value, :complete_value => true
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default_scope lambda { order('lookup_keys.key') }
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scope :override, lambda { where(:override => true) }
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scope :smart_class_parameters_for_class, lambda {|puppetclass_ids, environment_id|
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joins(:environment_classes).where(:environment_classes => {:puppetclass_id => puppetclass_ids, :environment_id => environment_id})
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}
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scope :parameters_for_class, lambda {|puppetclass_ids, environment_id|
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override.smart_class_parameters_for_class(puppetclass_ids,environment_id)
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}
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scope :global_parameters_for_class, lambda {|puppetclass_ids|
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where(:puppetclass_id => puppetclass_ids)
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}
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scope :smart_variables, lambda { where('lookup_keys.puppetclass_id > 0').readonly(false) }
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scope :smart_class_parameters, lambda { where(:is_param => true).joins(:environment_classes).readonly(false) }
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# new methods for API instead of revealing db names
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alias_attribute :parameter, :key
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alias_attribute :variable, :key
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alias_attribute :parameter_type, :key_type
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alias_attribute :variable_type, :key_type
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alias_attribute :override_value_order, :path
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alias_attribute :override_values_count, :lookup_values_count
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alias_attribute :override_values, :lookup_values
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alias_attribute :override_value_ids, :lookup_value_ids
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# to prevent errors caused by find_resource from override_values controller
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def self.find_by_name(str)
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nil
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end
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def to_label
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"#{audit_class}::#{key}"
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end
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def is_smart_variable?
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puppetclass_id.to_i > 0
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end
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def is_smart_class_parameter?
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is_param? && environment_classes.any?
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end
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def supports_merge?
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['array', 'hash'].include?(key_type)
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end
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def supports_uniq?
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key_type == 'array'
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end
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def to_param
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Parameterizable.parameterize("#{id}-#{key}")
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end
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def to_s
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key
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end
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def path
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path = read_attribute(:path)
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path.blank? ? array2path(Setting["Default_variables_Lookup_Path"]) : path
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end
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def path=(v)
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return unless v
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using_default = v.tr("\r","") == array2path(Setting["Default_variables_Lookup_Path"])
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write_attribute(:path, using_default ? nil : v)
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end
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def reject_invalid_lookup_values(attributes)
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attributes[:match].empty? ||
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(attributes[:value].blank? &&
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(attributes[:use_puppet_default].nil? || attributes[:use_puppet_default] == "0"))
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end
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def default_value_before_type_cast
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value_before_type_cast default_value
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end
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def value_before_type_cast(val)
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case key_type.to_sym
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when :json, :array
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begin
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val = JSON.dump(val)
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rescue JSON::GeneratorError => error
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## http://projects.theforeman.org/issues/9553
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## @TODO: remove when upgrading to json >= 1.8
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logger.debug "Fallback to quirks mode from error: '#{error}'"
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val = JSON.dump_in_quirks_mode(val)
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end
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when :yaml, :hash
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val = YAML.dump val
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val.sub!(/\A---\s*$\n/, '')
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end unless key_type.blank?
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val
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end
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def path_elements
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path.split.map do |paths|
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paths.split(KEY_DELM).map do |element|
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element
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end
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end
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end
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def contains_erb?(value)
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value =~ /<%.*%>/
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end
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def overridden?(host)
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return false unless host.is_a?(Host::Base) || host.is_a?(Hostgroup)
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lookup_values.find_by_match(host.send(:lookup_value_match)).present?
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end
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private
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# Generate possible lookup values type matches to a given host
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def path2matches(host)
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raise ::Foreman::Exception.new(N_("Invalid Host")) unless host.class.model_name == "Host"
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matches = []
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path_elements.each do |rule|
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match = []
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rule.each do |element|
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match << "#{element}#{EQ_DELM}#{attr_to_value(host,element)}"
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end
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matches << match.join(KEY_DELM)
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end
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matches
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end
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# translates an element such as domain to its real value per host
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# tries to find the host attribute first, parameters and then fallback to a puppet fact.
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def attr_to_value(host, element)
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# direct host attribute
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return host.send(element) if host.respond_to?(element)
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# host parameter
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return host.host_params[element] if host.host_params.include?(element)
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# fact attribute
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if (fn = host.fact_names.first(:conditions => { :name => element }))
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return FactValue.where(:host_id => host.id, :fact_name_id => fn.id).first.value
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end
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end
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def sanitize_path
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self.path = path.tr("\s","").downcase unless path.blank?
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end
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def array2path(array)
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raise ::Foreman::Exception.new(N_("invalid path")) unless array.is_a?(Array)
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array.map do |sub_array|
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sub_array.is_a?(Array) ? sub_array.join(KEY_DELM) : sub_array
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end.join("\n")
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end
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def cast_default_value
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return true if default_value.nil? || contains_erb?(default_value)
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begin
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Foreman::Parameters::Caster.new(self, :attribute_name => :default_value, :to => key_type).cast!
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true
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rescue
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errors.add(:default_value, _("is invalid"))
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false
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end
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end
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def load_yaml_or_json(value)
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return value unless value.is_a? String
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begin
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JSON.load value
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rescue
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YAML.load value
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end
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end
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def ensure_type
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if puppetclass_id.present? and is_param?
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self.errors.add(:base, _('Global variable or class Parameter, not both'))
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end
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end
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def validate_default_value
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Foreman::Parameters::Validator.new(self,
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:type => validator_type,
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:validate_with => validator_rule,
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:getter => :default_value).validate!
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end
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def disable_merge_overrides
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if merge_overrides && !supports_merge?
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self.errors.add(:merge_overrides, _("can only be set for array or hash"))
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end
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end
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def disable_avoid_duplicates
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if avoid_duplicates && (!merge_overrides || !supports_uniq?)
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self.errors.add(:avoid_duplicates, _("can only be set for arrays that have merge_overrides set to true"))
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end
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end
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def disable_merge_default
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if merge_default && !merge_overrides
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self.errors.add(:merge_default, _("can only be set when merge overrides is set"))
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end
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end
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end
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