Class: ActiveModel::Exporter

Inherits:
Object
  • Object
show all
Defined in:
lib/active_model/exporter.rb,
lib/active_model/exporter/types.rb,
lib/active_model/exporter/version.rb

Constant Summary collapse

TYPES = 
%i[csv xls].freeze
VERSION = 
"0.7.1"

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, options = {}) ⇒ Exporter

Returns a new instance of Exporter.



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# File 'lib/active_model/exporter.rb', line 24

def initialize(object, options = {})
  @object = object
  @scope  = options[:scope]
end

Class Attribute Details

._attributes ⇒ Object

Returns the value of attribute _attributes.



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# File 'lib/active_model/exporter.rb', line 6

def _attributes
  @_attributes
end

Instance Attribute Details

#object ⇒ Object (readonly)

Returns the value of attribute object.



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# File 'lib/active_model/exporter.rb', line 22

def object
  @object
end

#scope ⇒ Object (readonly)

Returns the value of attribute scope.



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# File 'lib/active_model/exporter.rb', line 22

def scope
  @scope
end

Class Method Details

.attributes(*attrs) ⇒ Object 



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# File 'lib/active_model/exporter.rb', line 13

def attributes(*attrs)
  @_attributes.concat(attrs)
end

.exporter_for(resource) ⇒ Object 



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# File 'lib/active_model/exporter.rb', line 17

def exporter_for(resource)
  "#{resource.class.name}Exporter".safe_constantize
end

.inherited(base) ⇒ Object 



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# File 'lib/active_model/exporter.rb', line 8

def inherited(base)
  super
  base._attributes = (_attributes || []).dup
end

Instance Method Details

#attributes ⇒ Object 



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# File 'lib/active_model/exporter.rb', line 43

def attributes
  self.class._attributes.dup
end

#filter(attrs) ⇒ Object 



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# File 'lib/active_model/exporter.rb', line 39

def filter(attrs)
  attrs
end

#values ⇒ Object 



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# File 'lib/active_model/exporter.rb', line 29

def values
  attrs = filter(attributes)
  attributes.map do |attr|
    if attrs.include?(attr)
      next send(attr) if respond_to?(attr)
      object.send(attr)
    end
  end
end