Class: TagBobby::TagNames

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/tag_bobby/tag_names.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(taggable) ⇒ TagNames

Returns a new instance of TagNames.



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# File 'lib/tag_bobby/tag_names.rb', line 4

def initialize(taggable)
  @taggable = taggable
end

Class Method Details

.new_with_names(taggable, names) ⇒ Object

Create a new TagNames object, but clear out existing tags and use the provided set instead.



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# File 'lib/tag_bobby/tag_names.rb', line 22

def self.new_with_names(taggable, names)
  tag_names = new(taggable)
  tag_names.clear
  names.each { |name| tag_names << name }
  tag_names
end

Instance Method Details

#+(array) ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 41

def +(array)
  array.each { |name| self.<< name }
  self
end

#-(array) ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 46

def -(array)
  array.each { |name| self.delete name }
  self
end

#<<(name) ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 12

def <<(name)
  # find an existing tag, or create a new one
  tag = TagBobby::Tag.where(:name => name).first ||
        TagBobby::Tag.create(:name => name)

  taggable.tags << tag
end

#clear ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 29

def clear
  taggable.tags.clear
end

#delete(name) ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 37

def delete(name)
  taggable.tags.delete TagBobby::Tag.where(:name => name).first
end

#each(&block) ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 33

def each(&block)
  to_a.each &block
end

#to_a ⇒ Object 



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# File 'lib/tag_bobby/tag_names.rb', line 8

def to_a
  taggable.tags.collect &:name
end