Module: Identifiers

Included in:
Accession, Resource
Defined in:
backend/app/model/mixins/identifiers.rb

Constant Summary

MAX_LENGTH = 
50

Class Method Summary (collapse)

Instance Method Summary (collapse)

Class Method Details

+ (Object) format(identifier) 



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# File 'backend/app/model/mixins/identifiers.rb', line 17

def self.format(identifier)
  identifier.compact.join("--")
end

+ (Object) included(base) 



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# File 'backend/app/model/mixins/identifiers.rb', line 11

def self.included(base)
  base.repo_unique_constraint(:identifier,
                              :message => "That ID is already in use",
                              :json_property => :id_0)
end

+ (Object) parse(identifier) 



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# File 'backend/app/model/mixins/identifiers.rb', line 22

def self.parse(identifier)
  ASUtils.json_parse(identifier || "[]")
end

Instance Method Details

- (Object) after_initialize 



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# File 'backend/app/model/mixins/identifiers.rb', line 27

def after_initialize
  # Split the identifier into its components and add the individual pieces as
  # variables on this instance.
  if self[:identifier]
    identifier = Identifiers.parse(self[:identifier])

    4.times do |i|
      self.instance_eval {
        @values[:"id_#{i}"] = identifier[i] if identifier[i] and !identifier[i].empty?
      }

      instance_variable_set("@id_#{i}", identifier[i])
    end
  end

  super
end

- (Object) before_validation 



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# File 'backend/app/model/mixins/identifiers.rb', line 45

def before_validation
  # Combine the identifier into a single string and remove the instance variables we added previously.
  values = (0...4).map {|i| instance_variable_get("@id_#{i}")}

  if (values.reject{|v| v.nil? || v.empty?}.empty?)
    # None of the id_* fields were set, so the whole identifier is NULL.
    self.identifier = nil
  else
    self.identifier = JSON(values)
  end

  4.times do |i|
    self.instance_eval {
      @values.delete(:"id_#{i}")
    }
  end

  super
end

- (Object) id_0=(v) 



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# File 'backend/app/model/mixins/identifiers.rb', line 5

def id_0=(v) @id_0 = v; self.modified! end

- (Object) id_1=(v) 



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# File 'backend/app/model/mixins/identifiers.rb', line 6

def id_1=(v) @id_1 = v; self.modified! end

- (Object) id_2=(v) 



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# File 'backend/app/model/mixins/identifiers.rb', line 7

def id_2=(v) @id_2 = v; self.modified! end

- (Object) id_3=(v) 



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# File 'backend/app/model/mixins/identifiers.rb', line 8

def id_3=(v) @id_3 = v; self.modified! end

- (Object) validate 



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# File 'backend/app/model/mixins/identifiers.rb', line 66

def validate
  return super if self.class.table_name === :resource and self.identifier.nil?

  (0...4).each do |i|
    val = instance_variable_get("@id_#{i}")
    errors.add("id_#{i}".intern, "Max length is #{MAX_LENGTH} characters") if val && val.length > MAX_LENGTH
  end

  super
end