Class: ActsAsTaggableOnMongoid::Taggable::Utils::TagListDiff

Inherits:
Object
  • Object
show all
Defined in:
lib/acts_as_taggable_on_mongoid/taggable/utils/tag_list_diff.rb

Overview

:reek:TooManyInstanceVariables :reek:InstanceVariableAssumption

Instance Method Summary collapse

Constructor Details

#initialize(tag_definition:, tags:, current_tags:) ⇒ TagListDiff

Returns a new instance of TagListDiff.



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# File 'lib/acts_as_taggable_on_mongoid/taggable/utils/tag_list_diff.rb', line 18

def initialize(tag_definition:, tags:, current_tags:)
  @tag_definition = tag_definition
  @tags           = tags
  @current_tags   = current_tags

  @old_tags = {}
  @new_tags = {}
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/acts_as_taggable_on_mongoid/taggable/utils/tag_list_diff.rb', line 27

def call
  @old_tags = current_tags - tags
  @new_tags = tags - current_tags

  preserve_tag_list_order
end

#create_new_tags(taggable) ⇒ Object 



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# File 'lib/acts_as_taggable_on_mongoid/taggable/utils/tag_list_diff.rb', line 34

def create_new_tags(taggable)
  new_tags.each do |tag|
    tagging = taggable.
        public_send(tag_definition.taggings_name).
        new(tag_name: tag.name, context: tag_definition.tag_type, taggable: taggable, tag: tag)

    next if tagging.save
    next if ignore_tagging_error(tagging)

    # re-raise error.
    tagging.save!
  end
end

#destroy_old_tags(taggable) ⇒ Object 



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# File 'lib/acts_as_taggable_on_mongoid/taggable/utils/tag_list_diff.rb', line 48

def destroy_old_tags(taggable)
  return if old_tags.blank?

  taggable.
      public_send(tag_definition.taggings_name).
      by_context(tag_definition.tag_type).
      where(:tag_name.in => old_tags.map(&:name)).
      destroy_all
end