Contents

module Ddr::Batch

  class BatchObjectAttribute < ActiveRecord::Base
    belongs_to :batch_object, :inverse_of => :batch_object_attributes

    OPERATION_ADD = "ADD"              # Add the provided value to the attribute
    OPERATION_DELETE = "DELETE"        # Delete the provided value from the attribute
    OPERATION_CLEAR = "CLEAR"          # Clear all values from the attribute
    OPERATION_CLEAR_ALL = "CLEAR_ALL"  # Clear all attributes in the datastream

    OPERATIONS = [ OPERATION_ADD, OPERATION_DELETE, OPERATION_CLEAR, OPERATION_CLEAR_ALL ]

    VALUE_TYPE_STRING = "STRING"

    VALUE_TYPES = [ VALUE_TYPE_STRING ]

    validates :operation, inclusion: { in: OPERATIONS }
    validates :datastream, presence: true
    with_options if: :operation_requires_name? do |obj|
      obj.validates :name, presence: true
    end
    validate :valid_datastream_and_attribute_name, if: [ 'batch_object.model', 'datastream', 'name' ]
    with_options if: :operation_requires_value? do |obj|
      obj.validates :value, presence: true
      obj.validates :value_type, inclusion: { in: VALUE_TYPES }
    end

    def operation_requires_name?
      [ OPERATION_ADD, OPERATION_DELETE, OPERATION_CLEAR ].include? operation
    end

    def operation_requires_value?
      [ OPERATION_ADD, OPERATION_DELETE ].include? operation
    end

    def valid_datastream_and_attribute_name
      if datastream_valid?
        errors.add(:name, "is not valid") unless attribute_name_valid?
      else
        errors.add(:datastream, "is not valid")
      end
    end

    def datastream_type
      batch_object.model.constantize.ds_specs[datastream][:type] rescue nil
    end

    def datastream_valid?
        datastream_type < ActiveFedora::RDFDatastream rescue false
    end

    def attribute_name_valid?
      datastream_type.term_names.include?(name.to_sym)
    end

  end
end

Version data entries

32 entries across 32 versions & 1 rubygems

Version	Path
ddr-batch-1.7.2	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.7.1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.7.0	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.6.1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.6.0	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.6.0.rc1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.5.1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.5.0	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.5.0.rc1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.4.1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.4.0	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.4.0.rc1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.3.0	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.3.0.rc1	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.2.0	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.2.0.rc6	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.2.0.rc5	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.2.0.rc4	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.2.0.rc3	app/models/ddr/batch/batch_object_attribute.rb
ddr-batch-1.2.0.rc2	app/models/ddr/batch/batch_object_attribute.rb