Class: MetadataPresenter::ValidateSchema

Inherits:
Object
  • Object
show all
Defined in:
app/validators/metadata_presenter/validate_schema.rb

Class Method Summary collapse

Class Method Details

.before(controller) ⇒ Object 



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# File 'app/validators/metadata_presenter/validate_schema.rb', line 6

def before(controller)
  return unless controller.request.post?

  validate(controller.request.params, 'request.service')

  metadata = controller.request.params['metadata']
  validate_pages(metadata['pages'])
  validate_pages(metadata['standalone_pages'])
rescue JSON::Schema::ValidationError, JSON::Schema::SchemaError, SchemaNotFoundError => e
  controller.render(
    json: ErrorsSerializer.new(message: e.message).attributes,
    status: :unprocessable_entity
  )
end

.find(schema_name) ⇒ Object 



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# File 'app/validators/metadata_presenter/validate_schema.rb', line 26

def find(schema_name)
  schema_file = schema_name.gsub('.', '/')
  schema = JSON.parse(
    File.read(
      File.join(
        Rails.application.config.schemas_directory, "#{schema_file}.json"
      )
    )
  )
  jschema = JSON::Schema.new(schema, Addressable::URI.parse(schema['_name']))
  JSON::Validator.add_schema(jschema)
  JSON::Validator.schema_for_uri(schema_name).schema
rescue Errno::ENOENT
  raise SchemaNotFoundError, "Schema not found => #{schema_name}"
end

.validate(metadata, schema_name) ⇒ Object 



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# File 'app/validators/metadata_presenter/validate_schema.rb', line 21

def validate(metadata, schema_name)
  schema = JSON::Validator.schema_for_uri(schema_name)&.schema || find(schema_name)
  JSON::Validator.validate!(schema, metadata)
end

.validate_pages(pages) ⇒ Object 



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# File 'app/validators/metadata_presenter/validate_schema.rb', line 42

def validate_pages(pages)
  Array(pages).each do |page|
    validate(page, page['_type'])
  end
end