Contents

require "rails/generators/scaffold/scaffold_generator"
require "rails/generators/resource_helpers"

# lib/generators/rails/typescript/typescript_generator.rb

module ViteReact
  module Generators
    class ScaffoldGenerator < ScaffoldGenerator
      include Rails::Generators::ResourceHelpers

      source_root File.expand_path("templates", __dir__)

      argument :attributes, type: :array, default: [], banner: "field:type field:type"


      def create_or_update_types
        types_file_path = Rails.root.join("app/javascript/types.d.ts")

        interface_code = generate_interface_code

        if File.exist?(types_file_path)
          append_to_file types_file_path, interface_code
        else
          create_file types_file_path, interface_code
        end
      end



      private

      def generate_interface_code
        attributes_lines = attributes.flat_map do |attr|
          puts attr.inspect
          if attr.type == :references
            build_reference_lines(attr)
          else
            [ build_attribute_line(attr) ]
          end
        end

        <<~TS
      // AUTO-GENERATED by rails g scaffold #{file_name}
      interface #{class_name} {
        #{attributes_lines.join("
        ")}
      }

        TS
      end


      def build_attribute_line(attr)
        "#{attr.name}?: #{rails_to_ts_type(attr.type)};"
      end

      def build_reference_lines(attr)
        referenced_interface_name = attr.name.camelize
        [
          "#{attr.name}_id: number;",
          "#{attr.name}?: #{referenced_interface_name};"
        ]
      end

      def rails_to_ts_type(rails_type)
        case rails_type
        when "integer", "float", "decimal" then "number"
        when "boolean" then "boolean"
        else
          "string"
        end
      end
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
vite_react-0.1.5	lib/generators/vite_react/scaffold/scaffold_generator.rb
vite_react-0.1.4	lib/generators/vite_react/scaffold/scaffold_generator.rb
vite_react-0.1.3	lib/generators/vite_react/scaffold/scaffold_generator.rb
vite_react-0.1.2	lib/generators/vite_react/scaffold/scaffold_generator.rb
vite_react-0.1.1	lib/generators/vite_react/scaffold/scaffold_generator.rb