Class: Tramway::Core::ApplicationDecorator

Inherits:
Object
  • Object
show all
Includes:
ActionView::Context, ActionView::Helpers, FontAwesome5::Rails::IconHelper, Concerns::AttributesDecoratorHelper
Defined in:
app/decorators/tramway/core/application_decorator.rb

Constant Summary collapse

RESERVED_WORDS = 
['fields'].freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object) ⇒ ApplicationDecorator 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 10

def initialize(object)
  @object = object
end

Class Method Details

.collections ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 24

def collections
  [:all]
end

.decorate(object_or_array) ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 40

def decorate(object_or_array)
  if object_or_array.class.superclass == ActiveRecord::Relation
    decorated_array = object_or_array.map do |obj|
      new obj
    end
    Tramway::Core::ApplicationDecoratedCollection.new decorated_array, object_or_array
  else
    new object_or_array
  end
end

.decorate_association(association_name, decorator: nil) ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 51

def decorate_association(association_name, decorator: nil)
  @@decorated_associations ||= []
  @@decorated_associations << association_name

  define_method association_name do
    association = object.class.reflect_on_association(association_name)
    if association.nil?
      error = Tramway::Error.new(plugin: :core, method: :decorate_association, message: "Model #{object.class} does not have association named `#{association_name}`")
      raise error.message
    end
    class_name = if association.polymorphic?
                   object.send(association_name).class
                 else
                   unless association.options[:class_name]
                     error = Tramway::Error.new(plugin: :core, method: :decorate_association, message: "Please, specify `#{association_name}` association class_name in #{object.class} model. For example: `has_many :#{association_name}, class_name: '#{association_name.to_s.singularize.camelize}'`")
                     raise error.message
                   end
                   association.options[:class_name]
                 end
    decorator_class_name = decorator || "#{class_name.to_s.singularize}Decorator".constantize
    if association.class == ActiveRecord::Reflection::HasManyReflection
      return object.send(association_name).active.map do |association_object|
        decorator_class_name.decorate association_object
      end
    end
    if association.class == ActiveRecord::Reflection::BelongsToReflection
      return decorator_class_name.decorate object.send association_name
    end
  end
end

.list_attributes ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 28

def list_attributes
  []
end

.model_class ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 82

def model_class
  to_s.sub(/Decorator$/, '').constantize
end

.model_name ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 86

def model_name
  model_class.try(:model_name)
end

.show_associations ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 36

def show_associations
  []
end

.show_attributes ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 32

def show_attributes
  []
end

Instance Method Details

#associations(associations_type) ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 113

def associations(associations_type)
  object.class.reflect_on_all_associations(associations_type).map do |association|
    association unless association.name == :audits
  end.compact
end

#attributes ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 123

def attributes
  object.attributes.reduce({}) do |hash, attribute|
    if attribute[0].in? RESERVED_WORDS
      error = Tramway::Error.new(
        plugin: :core,
        method: :attributes,
        message: "Method `#{attribute[0]}` is reserved word. Please, create or delegate method in #{self.class.name} with another name."
      )
      raise error.message
    end
    value = try(attribute[0]) ? send(attribute[0]) : object.send(attribute[0])
    if attribute[0].to_s.in? object.class.state_machines.keys.map(&:to_s)
      hash.merge! attribute[0] => state_machine_view(object, attribute[0])
    elsif value.class.in? [ActiveSupport::TimeWithZone, DateTime, Time]
      hash.merge! attribute[0] => datetime_view(attribute[1])
    elsif value.class.superclass == ApplicationUploader
      hash.merge! attribute[0] => image_view(object.send(attribute[0]))
    elsif value.is_a? Enumerize::Value
      hash.merge! attribute[0] => enumerize_view(value)
    else
      hash.merge! attribute[0] => value
    end
  end
end

#link ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 94

def link
  if object.try :file
    object.file.url
  else
    error = Tramway::Error.new(
      plugin: :core,
      method: :link,
      message: "Method `link` uses `file` attribute of the decorated object. If decorated object doesn't contain `file`, you shouldn't use `link` method."
    )
    raise error.message
  end
end

#model ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 109

def model
  object
end

#name ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 14

def name
  object.try(:name) || object.try(:title) || title
end

#public_path ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 107

def public_path; end

#title ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 18

def title
  error = Tramway::Error.new(plugin: :core, method: :title, message: "Please, implement `title` method in a #{self.class} or #{object.class}")
  raise error.message
end

#yes_no(boolean_attr) ⇒ Object 



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# File 'app/decorators/tramway/core/application_decorator.rb', line 148

def yes_no(boolean_attr)
  boolean_attr.to_s == 'true' ? I18n.t('helpers.yes') : I18n.t('helpers.no')
end