Class: Tramway::Core::ApplicationDecorator

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object) ⇒ ApplicationDecorator

Returns a new instance of ApplicationDecorator.



8
9
10
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 8

def initialize(object)
  @object = object
end

Class Method Details

.decorate(object_or_array) ⇒ Object 



26
27
28
29
30
31
32
33
34
35
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 26

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 



37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 37

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

  define_method association_name do
    class_name = object.class.reflect_on_association(association_name).options[:class_name]
    unless 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

    object.send(association_name).active.map do |association_object|
      decorator_class_name = decorator || "#{class_name.singularize}Decorator".constantize
      decorator_class_name.decorate association_object
    end
  end
end

.list_attributes ⇒ Object 



22
23
24
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 22

def list_attributes
  []
end

Instance Method Details

#associations(associations_type) ⇒ Object 



76
77
78
79
80
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 76

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 



82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 82

def attributes
  object.attributes.reduce({}) do |hash, attribute|
    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] => object.send("human_#{attribute[0]}_name")
    elsif value.class.in? [ ActiveSupport::TimeWithZone, DateTime, Time ]
      hash.merge! attribute[0] => I18n.l(attribute[1])
    elsif value.class.superclass == ApplicationUploader
      tags = content_tag(:div) do
        if value.url.match(/jpg|JPG|png|PNG$/)
          concat image_tag value.try(:small) ? value.small.url : value.url
        end
        concat link_to(fa_icon(:download), value.url, class: 'btn btn-success')
      end
      hash.merge! attribute[0] => tags
    elsif value.is_a? Enumerize::Value
      hash.merge! attribute[0] => value.text
    else
      hash.merge! attribute[0] => value
    end
  end
end

#link ⇒ Object 



60
61
62
63
64
65
66
67
68
69
70
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 60

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 



72
73
74
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 72

def model
  object
end

#name ⇒ Object 



12
13
14
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 12

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

#title ⇒ Object 



16
17
18
19
 
# File 'app/decorators/tramway/core/application_decorator.rb', line 16

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