Contents

class Trailblazer::Operation
  module Model
    Step = ->(operation, options) { options["model"] = operation.model!(options["params"]) }

    def self.import!(operation, import, model_class, action=nil)
      # configure
      operation["model.class"] = model_class
      operation["model.action"] = action

      # add
      import.(:&, Step, name: "model.build")

      operation.send :include, BuildMethods
    end

    # Methods to create the model according to class configuration and params.
    module BuildMethods
      def model_class
        self["model.class"] or raise "[Trailblazer] You didn't call Operation::model."
      end

      def action_name
        self["model.action"] or :new
      end

      def model!(params)
        instantiate_model(params)
      end

      def instantiate_model(params)
        send("#{action_name}_model", params)
      end

      def new_model(params)
        model_class.new
      end

      def update_model(params)
        model_class.find(params[:id])
      end

      alias_method :find_model, :update_model

      # Doesn't throw an exception and will return false to divert to Left.
      def find_by_model(params)
        model = model_class.find_by(id: params[:id])

        self["result.model"] = Result.new(!model.nil?, {})
        model
      end
    end
  end

  DSL.macro!(:Model, Model)
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
trailblazer-2.0.0	lib/trailblazer/operation/model.rb
trailblazer-2.0.0.rc1	lib/trailblazer/operation/model.rb
trailblazer-2.0.0.beta3	lib/trailblazer/operation/model.rb
trailblazer-2.0.0.beta2	lib/trailblazer/operation/model.rb