Class: RequiredFields

Inherits:
Sequel::Model
  • Object
show all
Defined in:
backend/app/model/required_fields.rb,
frontend/app/models/required_fields.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(json) ⇒ RequiredFields

Returns a new instance of RequiredFields.



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# File 'frontend/app/models/required_fields.rb', line 17

def initialize(json)
  @json = json
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args) ⇒ Object 



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# File 'frontend/app/models/required_fields.rb', line 21

def method_missing(meth, *args)
  @json.send(meth, *args)
end

Class Method Details

.create_from_json(json, opts = {}) ⇒ Object 



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# File 'backend/app/model/required_fields.rb', line 42

def self.create_from_json(json, opts = {})
  super(json, opts.merge('blob' => json.to_json))
end

.create_or_update(json, repo_id, record_type) ⇒ Object 



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

def self.create_or_update(json, repo_id, record_type)
  id = "#{repo_id}_#{record_type}"

  if self[id]
    self[id].update_from_json(json)
  else
    self.create_from_json(json, {:id => "#{repo_id}_#{record_type}"})
  end

  self[id]
end

.from_hash(hash) ⇒ Object 



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# File 'frontend/app/models/required_fields.rb', line 13

def self.from_hash(hash)
  self.new(JSONModel(:required_fields).from_hash(hash))
end

.get(record_type) ⇒ Object 



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# File 'frontend/app/models/required_fields.rb', line 3

def self.get(record_type)
  uri = "/repositories/#{JSONModel.repository}/required_fields/#{record_type}"
  begin
    result = JSONModel::HTTP.get_json(uri)
    self.new(JSONModel(:required_fields).from_hash(result))
  rescue RecordNotFound => e
    self.new(JSONModel(:required_fields).from_hash(record_type: record_type))
  end
end

.sequel_to_jsonmodel(objs, opts = {}) ⇒ Object 



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

def self.sequel_to_jsonmodel(objs, opts = {})
  jsons = objs.map {|obj|
    json = JSONModel(:required_fields).new(ASUtils.json_parse(obj[:blob]))
    json.uri = obj.uri
    json.lock_version = obj.lock_version
    json
  }

  jsons
end

.to_jsonmodel(obj, opts = {}) ⇒ Object 



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

def self.to_jsonmodel(obj, opts = {})
  if obj.is_a? String
    obj = RequiredFields[obj]
    raise NotFoundException.new("#{self} not found") unless obj
  end

  self.sequel_to_jsonmodel([obj], opts)[0]
end

Instance Method Details

#add_errors(obj) ⇒ Object

this is limited to checking for subrecord presence and checking presence of fields of subrecords that are immediately attached to a property of the top-level record as an array, but could be expanded to cover other parts of the record



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# File 'frontend/app/models/required_fields.rb', line 41

def add_errors(obj)
  unless obj.jsonmodel_type == @json.record_type
    raise "Cannot validate a #{obj.jsonmodel_type} with these #{@json.record_type} requirements!"
  end
  @json.subrecord_requirements.each do |requirements|
    property = requirements["property"]
    type = requirements["record_type"]

    # see comment below
    if obj[property].present?
      obj[property].each_with_index do |subrecord, i|
        next unless subrecord.is_a?(Hash)
        next if subrecord['jsonmodel_type'] && subrecord['jsonmodel_type'].to_s != requirements['record_type']
        requirements['required_fields'].each do |required_field|
          unless subrecord[required_field].present?
            obj.add_error("#{property}/#{i}/#{required_field}", :missing_required_property)
          end
        end
      end
    elsif requirements["required"]
      obj.add_error(property, :missing_required_subrecord)
    end
  end
end

#each_required_subrecord ⇒ Object 



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# File 'frontend/app/models/required_fields.rb', line 87

def each_required_subrecord
  @json.subrecord_requirements.each do |requirements|
    next unless requirements['required']
    yield requirements['property'], { 'jsonmodel_type' => requirements['record_type'] }
  end
end

#required?(property, type, field = nil) ⇒ Boolean

Ideally a subrecord field requirement should probably involve: 1) a property of the parent schema; 2) the type of subrecord; 3) the field name But since form data carried through an invalid create attempt is missing #2, and javascript templates lack #1, and furthermore migrated requirements don’t have record types; and since in practice there is generally only one model type that will satisfy a property (e.g., “metadata_rights_declarations / metadata_rights_declaration”), we will accept nil for either property or type (on either side for type), and assume it’s a match. caveat validator.

Returns:

  • (Boolean) 


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# File 'frontend/app/models/required_fields.rb', line 77

def required?(property, type, field = nil)
  @json.subrecord_requirements.each do |requirements|
    next unless type.nil? || requirements['record_type'].nil? || requirements['record_type'] == type.to_s
    next unless property.nil? || requirements['property'] == property.to_s
    return true if property && type && field.nil? && requirements['required']
    return true if requirements['required_fields'].include?(field.to_s) && field.present?
  end
  false
end

#save ⇒ Object 



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# File 'frontend/app/models/required_fields.rb', line 25

def save
  uri = "/repositories/#{JSONModel.repository}/required_fields/#{@json.record_type}"
  url = URI("#{JSONModel::HTTP.backend_url}#{uri}")

  response = JSONModel::HTTP.post_json(url, ASUtils.to_json((@json.to_hash)))

  if response.code != '200'
    raise response.body
  end

  response
end

#update_from_json(json, opts = {}, apply_nested_records = false) ⇒ Object 



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# File 'backend/app/model/required_fields.rb', line 47

def update_from_json(json, opts = {}, apply_nested_records = false)
  json['lock_version'] ||= 0
  super(json, opts.merge('blob' => json.to_json))
end

#uri ⇒ Object 



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# File 'backend/app/model/required_fields.rb', line 53

def uri
  "/repositories/#{self.repo_id}/required_fields/#{self.record_type}"
end