Module: ActiveLdap::Associations::ClassMethods

### Home Classes Methods

### In Files

- lib/active_ldap/associations.rb

### Methods

- #associated_class
- #belongs_to
- #has_many
- #set_associated_class

### Files

- USAGE

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# ActiveLdap::Associations::ClassMethods

### Constants

VALID_BELONGS_TO_OPTIONS
VALID_HAS_MANY_OPTIONS

### Public Instance Methods

associated_class(name) click to toggle source

    # File lib/active_ldap/associations.rb, line 26
    def associated_class(name)
      @associated_classes[name.to_s]
    end

belongs_to(association_id, options={}) click to toggle source

belongs_to

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
    def belongs_to(association_id, options={})
      validate_belongs_to_options(options)
      klass = options[:class]
      klass ||= (options[:class_name] || association_id.to_s).classify
      foreign_key = options[:foreign_key]
      primary_key = options[:primary_key]
      many = options[:many]
      set_associated_class(association_id, klass)

      opts = {
        :association_id => association_id,
        :foreign_key_name => foreign_key,
        :primary_key_name => primary_key,
        :many => many,
        :extend => options[:extend],
      }
      if opts[:many]
        association_class = Association::BelongsToMany
        foreign_key_name = opts[:foreign_key_name]
        if foreign_key_name
          message = _(":foreign_key belongs_to(:many) option is "                          "deprecated since 1.1.0. Use :primary_key instead.")
          ActiveSupport::Deprecation.warn(message)
          opts[:primary_key_name] ||= foreign_key_name
        end
        opts[:primary_key_name] ||= dn_attribute
      else
        association_class = Association::BelongsTo
        opts[:foreign_key_name] ||= "#{association_id}_id"

        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)
      end

      association_accessor(association_id) do |target|
        association_class.new(target, opts)
      end
    end

has_many(association_id, options = {}) click to toggle source

has_many

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
    def has_many(association_id, options = {})
      validate_has_many_options(options)
      klass = options[:class]
      klass ||= (options[:class_name] || association_id.to_s).classify
      foreign_key = options[:foreign_key]
      primary_key = options[:primary_key]
      set_associated_class(association_id, klass)

      opts = {
        :association_id => association_id,
        :foreign_key_name => foreign_key,
        :primary_key_name => primary_key,
        :wrap => options[:wrap],
        :extend => options[:extend],
      }
      if opts[:wrap]
        association_class = Association::HasManyWrap
      else
        association_class = Association::HasMany
        primary_key_name = opts[:primary_key_name]
        foreign_key_name = opts[:foreign_key_name]
        if primary_key_name != foreign_key_name and
            primary_key_name != "dn" and
            !new.have_attribute?(primary_key_name)
          message = _(":primary_key and :foreign_key has_many options are "                          "inverted their mean since 1.1.0. Please invert them.")
          ActiveSupport::Deprecation.warn(message)
          opts[:foreign_key_name] = primary_key_name
          opts[:primary_key_name] = foreign_key_name
        end
      end

      association_accessor(association_id) do |target|
        association_class.new(target, opts)
      end
    end

set_associated_class(name, klass) click to toggle source

    # File lib/active_ldap/associations.rb, line 21
    def set_associated_class(name, klass)
      @associated_classes ||= {}
      @associated_classes[name.to_s] = klass
    end

[Validate]

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