Contents

class Trailblazer::Operation
  def self.Model(model_class, action=nil)
    task = Trailblazer::Activity::TaskBuilder::Binary.call(Model.new)

    extension = Trailblazer::Activity::TaskWrap::Merge.new(
      Wrap::Inject::Defaults(
        "model.class"  => model_class,
        "model.action" => action
      )
    )

    { task: task, id: "model.build", extension: [extension] }
  end

  class Model
    def call(options, params:,  **)
      builder                 = Model::Builder.new
      options[:model]         = model = builder.call(options, params)
      options["result.model"] = result = Result.new(!model.nil?, {})

      result.success?
    end

    class Builder
      def call(options, params)
        action        = options["model.action"] || :new
        model_class   = options["model.class"]
        action        = :pass_through unless %i[new find_by find].include?(action)

        send("#{action}!", model_class, params, options["model.action"])
      end

      def new!(model_class, params, *)
        model_class.new
      end

      def find!(model_class, params, *)
        model_class.find(params[:id])
      end

      # Doesn't throw an exception and will return false to divert to Left.
      def find_by!(model_class, params, *)
        model_class.find_by(id: params[:id])
      end

      # Call any method on the model class and pass :id.
      def pass_through!(model_class, params, action)
        model_class.send(action, params[:id])
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
trailblazer-macro-2.1.0.beta1	lib/trailblazer/operation/model.rb