SoundSoftware Code Site

class RedminePluginModelGenerator < Rails::Generators::NamedBase

  source_root File.expand_path("../templates", __FILE__)

  argument :model, :type => :string

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

  class_option :migration,  :type => :boolean

  class_option :timestamps, :type => :boolean

  class_option :parent,     :type => :string, :desc => "The parent class for the generated model"

  class_option :indexes,    :type => :boolean, :default => true, :desc => "Add indexes for references and belongs_to columns"

  attr_reader :plugin_path, :plugin_name, :plugin_pretty_name

  def initialize(*args)

    super

    @plugin_name = file_name.underscore

    @plugin_pretty_name = plugin_name.titleize

    @plugin_path = "plugins/#{plugin_name}"

    @model_class = model.camelize

    @table_name = @model_class.tableize

    @migration_filename = "create_#{@table_name}"

    @migration_class_name = @migration_filename.camelize

  end

  def copy_templates

    template 'model.rb.erb', "#{plugin_path}/app/models/#{model.underscore}.rb"

    template 'unit_test.rb.erb', "#{plugin_path}/test/unit/#{model.underscore}_test.rb"

    migration_filename = "%03i_#{@migration_filename}.rb" % (migration_number + 1)

    template "migration.rb", "#{plugin_path}/db/migrate/#{migration_filename}"

  end

  def attributes_with_index

    attributes.select { |a| a.has_index? || (a.reference? && options[:indexes]) }

  end

  def migration_number

    current = Dir.glob("#{plugin_path}/db/migrate/*.rb").map do |file|

      File.basename(file).split("_").first.to_i

    end.max.to_i

  end

end