Module: Soulless::Inheritance

Included in:
Model
Defined in:
lib/soulless/inheritance.rb

Instance Method Summary collapse

Instance Method Details

#get_active_record_attributes(klass, options) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 41

def get_active_record_attributes(klass, options)
  attributes = []
  attribute_names = get_attribute_names(klass.attribute_names.dup, options)
  attribute_names.each do |attribute_name|
    if include_attribute?(attribute_name, options)
      column = klass.columns_hash[attribute_name.to_s]
      attribute = {
        name: attribute_name,
        primitive: String,
        options: {}
      }
      attribute[:primitive] = translate_primitive(column.type) if column
      attribute[:options] = { default: column.default } if column &&
                                                           (options[:use_database_default] == true ||
                                                             options[:use_database_default] == attribute_name ||
                                                             (options[:use_database_default].kind_of?(Array) &&
                                                               options[:use_database_default].collect { |v| v.to_s }.include?(attribute_name)))
      attributes << attribute
    end
  end
  attributes
end

#get_attribute_names(attributes, options) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 91

def get_attribute_names(attributes, options)
  attribute_names = attributes
  attribute_names << options[:additional_attributes] if options[:additional_attributes]
  attribute_names.flatten!
  attribute_names.map!{ |a| a.to_s }
  attribute_names
end

#get_attributes(klass, options) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 14

def get_attributes(klass, options)
  if klass.ancestors.include?(Virtus::Model::Core)
    get_virtus_attributes(klass, options)
  elsif Object.const_defined?('ActiveRecord'.to_sym) && klass.ancestors.include?(ActiveRecord::Base)
    get_active_record_attributes(klass, options)
  end
end

#get_virtus_attributes(klass, options) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 22

def get_virtus_attributes(klass, options)
  attributes = []
  attribute_set = klass.attribute_set
  attribute_names = get_attribute_names(attribute_set.map{ |a| a.options[:name] }, options)
  attribute_names.each do |attribute_name|
    attribute = attribute_set[attribute_name]
    if include_attribute?(attribute_name, options)
      attributes << {
        name: attribute_name,
        primitive: attribute.primitive,
        options: {
          default: attribute.default_value
        }
      }
    end
  end
  attributes
end

#include_attribute?(attribute_name, options) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soulless/inheritance.rb', line 110

def include_attribute?(attribute_name, options)
  # Attributes we don't want to inherit
  exclude_attributes = ['id']
  exclude_attributes << ['created_at', 'updated_at'] unless options[:include_timestamps]
  exclude_attributes << options[:exclude] if options[:exclude]
  exclude_attributes.flatten!
  exclude_attributes.collect!{ |v| v.to_s }
  # Attributes we only want to inherit
  only_attributes = []
  only_attributes << options[:only] if options[:only]
  only_attributes.flatten!
  only_attributes.collect!{ |v| v.to_s }

  !exclude_attributes.include?(attribute_name) && (only_attributes.empty? || only_attributes.include?(attribute_name))
end

#inherit_from(klass, options = {}) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 3

def inherit_from(klass, options = {})
  attributes = get_attributes(klass, options)

  attributes.each do |attribute|
    self.attribute(attribute[:name], attribute[:primitive], attribute[:options])
    if Object.const_defined?('ActiveModel'.to_sym) && klass.ancestors.include?(ActiveModel::Validations)
      setup_validators(attribute[:name], klass, options)
    end
  end
end

#setup_validators(attribute_name, klass, options) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 64

def setup_validators(attribute_name, klass, options)
  return if skip_validators?(attribute_name, options) || !include_attribute?(attribute_name, options)
  klass.validators.each do |validator|
    if validator.attributes.include?(attribute_name.to_sym)
      validator_class = validator.class
      validator_options = {}
      validator_options.merge!(validator.options)
      next if validator_options.include?(:on) && options["validate_#{attribute_name}_on".to_sym] != validator_options[:on]
      validator_options.delete(:on)
      if validator_class.name == 'ActiveRecord::Validations::UniquenessValidator'
        validator_class = Validations::UniquenessValidator
        validator_options.merge!(model: klass)
      else
        # Validators from models are ActiveRecord
        # objects which aren't useable in an
        # environment without a database. It's
        # necessary to convert to an ActiveModel
        # validation.
        if validator_class.name =~ /\AActiveRecord/
          validator_class = "ActiveModel::Validations::#{validator_class.name.split('::').last}".constantize
        end
      end
      validates_with(validator_class, { attributes: attribute_name }.merge(validator_options))
    end
  end
end

#skip_validators?(attribute_name, options) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/soulless/inheritance.rb', line 126

def skip_validators?(attribute_name, options)
  return true if options[:skip_validators] == true
  skip_validators = []
  skip_validators << options[:skip_validators]
  skip_validators.flatten!
  skip_validators.collect!{ |v| v.to_s }
  skip_validators.include?(attribute_name)
end

#translate_primitive(primitive) ⇒ Object 



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# File 'lib/soulless/inheritance.rb', line 99

def translate_primitive(primitive)
  return nil unless primitive
  translated_primitive = primitive.to_s.capitalize
  translated_primitive = Virtus::Attribute::Boolean if translated_primitive == 'Boolean'
  translated_primitive = DateTime if translated_primitive == 'Datetime'
  translated_primitive = String if translated_primitive == 'Uuid'
  translated_primitive = String if translated_primitive == 'Citext'
  translated_primitive = BigDecimal if translated_primitive == 'Decimal'
  translated_primitive
end