Class: MegaScaffold::KlassDecorator

Inherits:
Object
  • Object
show all
Defined in:
lib/mega_scaffold/klass_decorator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass, options) ⇒ KlassDecorator

Returns a new instance of KlassDecorator.



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# File 'lib/mega_scaffold/klass_decorator.rb', line 5

def initialize(klass, options)
  @klass = klass
  @options = options
end

Instance Attribute Details

#klass ⇒ Object (readonly)

Returns the value of attribute klass.



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# File 'lib/mega_scaffold/klass_decorator.rb', line 3

def klass
  @klass
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/mega_scaffold/klass_decorator.rb', line 3

def options
  @options
end

Instance Method Details

#decorate ⇒ Object 



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# File 'lib/mega_scaffold/klass_decorator.rb', line 10

def decorate
  # hack to have local variable available for define_method
  local = options

  klass.singleton_class.define_method :rules do
    {
      except: (Array.wrap(local[:except]) + Array.wrap(local[:ignore])).map(&:to_sym),
      only: (Array.wrap(local[:only]) - Array.wrap(local[:ignore])).map(&:to_sym),
    }
  end

  klass.singleton_class.define_method :fields_config do
    local[:fields].map do |e|
      e.merge({view: Array.wrap(e[:view]).map(&:to_sym)}).deep_symbolize_keys
    end
  end

  klass.singleton_class.define_method :columns_config do
    fields_config.select do |e|
      next true if e[:view].empty?
      next true if e[:view].include?(:index) || e[:view].include?(:all)

      false
    end
  end

  klass.singleton_class.define_method :form_config do
    fields_config.select do |e|
      next false if rules[:except].any? && rules[:except].include?(e[:name].to_sym)
      next false if rules[:only].any? && !rules[:only].include?(e[:name].to_sym)

      next true if e[:view].empty?
      next true if e[:view].include?(:form) || e[:view].include?(:all)
      false
    end
  end

  klass.singleton_class.define_method :show_config do
    fields_config.select do |e|
      next true if e[:view].empty?
      next true if e[:view].include?(:show) || e[:view].include?(:all)

      false
    end
  end      

  klass.singleton_class.define_method :collection_config do
    if local[:collection].is_a?(Proc)
      local[:collection]
    else
      -> (controller) { local[:model].all }
    end
  end

  klass.singleton_class.define_method :parent_config do
    local[:parent]
  end
end