Module: Identifiers

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

Constant Summary collapse

MAX_LENGTH = 
50

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.format(identifier) ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 20

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

.included(base) ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 14

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

.parse(identifier) ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 25

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

Instance Method Details

#after_initialize ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 30

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

#before_validation ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 48

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

#format_multipart_identifier ⇒ Object

take a string that looks like this: “["3422","345FD","3423ASDA",null]” and convert it into this: “3422-345FD-3423ASDA”



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# File 'backend/app/model/mixins/identifiers.rb', line 82

def format_multipart_identifier
  self[:identifier].gsub("null", '')
                    .gsub!(/[\[\]]/, '')
                    .gsub(",", '')
                    .split('"')
                    .select {|s| !s.empty?}
                    .join("-")
end

#id_0=(v) ⇒ Object 



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

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

#id_1=(v) ⇒ Object 



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

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

#id_2=(v) ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 9

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

#id_3=(v) ⇒ Object 



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

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

#validate ⇒ Object 



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# File 'backend/app/model/mixins/identifiers.rb', line 69

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