# File lib/active_ldap/associations.rb, line 26 26: def associated_class(name) 27: @associated_classes[name.to_s] 28: end
This defines a method for an extension class map its DN key attribute value on to multiple items which reference it by |:foreign_key| in the other LDAP entry covered by class |:class_name|.
Example:
belongs_to :groups, :class_name => "Group", :many => "memberUid" # Group#memberUid # :primary_key => "uid" # User#uid ## deprecated since 1.1.0. Use :primary_key instead. ## :foreign_key => "uid" # User#uid # dn attribute value is used by default belongs_to :primary_group, :class_name => "Group", :foreign_key => "gidNumber", # User#gidNumber :primary_key => "gidNumber" # Group#gidNumber
# File lib/active_ldap/associations.rb, line 48 48: def belongs_to(association_id, options={}) 49: validate_belongs_to_options(options) 50: klass = options[:class] 51: klass ||= (options[:class_name] || association_id.to_s).classify 52: foreign_key = options[:foreign_key] 53: primary_key = options[:primary_key] 54: many = options[:many] 55: set_associated_class(association_id, klass) 56: 57: opts = { 58: :association_id => association_id, 59: :foreign_key_name => foreign_key, 60: :primary_key_name => primary_key, 61: :many => many, 62: :extend => options[:extend], 63: } 64: if opts[:many] 65: association_class = Association::BelongsToMany 66: foreign_key_name = opts[:foreign_key_name] 67: if foreign_key_name 68: message = _(":foreign_key belongs_to(:many) option is " "deprecated since 1.1.0. Use :primary_key instead.") 69: ActiveSupport::Deprecation.warn(message) 70: opts[:primary_key_name] ||= foreign_key_name 71: end 72: opts[:primary_key_name] ||= dn_attribute 73: else 74: association_class = Association::BelongsTo 75: opts[:foreign_key_name] ||= "#{association_id}_id" 76: 77: before_save( if defined?(@#{association_id}) association = @#{association_id} if association and association.updated? self[association.__send__(:primary_key)] = association[#{opts[:foreign_key_name].dump}] end end) 78: end 79: 80: association_accessor(association_id) do |target| 81: association_class.new(target, opts) 82: end 83: end
This defines a method for an extension class expand an existing multi-element attribute into ActiveLdap objects. This discards any calls which result in entries that don’t exist in LDAP!
Example:
has_many :primary_members, :class_name => "User", :primary_key => "gidNumber", # Group#gidNumber :foreign_key => "gidNumber" # User#gidNumber ## deprecated since 1.1.0. Those options ## are inverted. # :primary_key => "gidNumber", # User#gidNumber # :foreign_key => "gidNumber" # Group#gidNumber has_many :members, :class_name => "User", :wrap => "memberUid" # Group#memberUid
# File lib/active_ldap/associations.rb, line 112 112: def has_many(association_id, options = {}) 113: validate_has_many_options(options) 114: klass = options[:class] 115: klass ||= (options[:class_name] || association_id.to_s).classify 116: foreign_key = options[:foreign_key] 117: primary_key = options[:primary_key] 118: set_associated_class(association_id, klass) 119: 120: opts = { 121: :association_id => association_id, 122: :foreign_key_name => foreign_key, 123: :primary_key_name => primary_key, 124: :wrap => options[:wrap], 125: :extend => options[:extend], 126: } 127: if opts[:wrap] 128: association_class = Association::HasManyWrap 129: else 130: association_class = Association::HasMany 131: primary_key_name = opts[:primary_key_name] 132: foreign_key_name = opts[:foreign_key_name] 133: if primary_key_name != foreign_key_name and 134: primary_key_name != "dn" and 135: !new.have_attribute?(primary_key_name) 136: message = _(":primary_key and :foreign_key has_many options are " "inverted their mean since 1.1.0. Please invert them.") 137: ActiveSupport::Deprecation.warn(message) 138: opts[:foreign_key_name] = primary_key_name 139: opts[:primary_key_name] = foreign_key_name 140: end 141: end 142: 143: association_accessor(association_id) do |target| 144: association_class.new(target, opts) 145: end 146: end
# File lib/active_ldap/associations.rb, line 150 150: def association_accessor(name, &make_association) 151: define_method("__make_#{name}") do 152: make_association.call(self) 153: end 154: associations << name 155: association_reader(name, &make_association) 156: association_writer(name, &make_association) 157: end
# File lib/active_ldap/associations.rb, line 159 159: def association_reader(name, &make_association) 160: class_eval( def #{name} @#{name} ||= __make_#{name} end, __FILE__, __LINE__ + 1) 161: end
# File lib/active_ldap/associations.rb, line 167 167: def association_writer(name, &make_association) 168: class_eval( def #{name}=(new_value) association = defined?(@#{name}) ? @#{name} : nil association ||= __make_#{name} association.replace(new_value) @#{name} = new_value.nil? ? nil : association @#{name} end, __FILE__, __LINE__ + 1) 169: end
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