Module: MongoMapper::Plugins::Modifiers::ClassMethods

Defined in:
lib/mongo_mapper/plugins/modifiers.rb

Instance Method Summary collapse

Instance Method Details

#add_to_set(*args) ⇒ Object Also known as: push_uniq 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 46

def add_to_set(*args)
  modifier_update('$addToSet', args)
end

#decrement(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 10

def decrement(*args)
  criteria, keys = criteria_and_keys_from_args(args)
  values, to_decrement = keys.values, {}
  keys.keys.each_with_index { |k, i| to_decrement[k] = -values[i].abs }
  collection.update(criteria, {'$inc' => to_decrement}, :multi => true)
end

#increment(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 6

def increment(*args)
  modifier_update('$inc', args)
end

#pop(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 59

def pop(*args)
  modifier_update('$pop', args)
end

#pull(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 51

def pull(*args)
  modifier_update('$pull', args)
end

#pull_all(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 55

def pull_all(*args)
  modifier_update('$pullAll', args)
end

#push(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 38

def push(*args)
  modifier_update('$push', args)
end

#push_all(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 42

def push_all(*args)
  modifier_update('$pushAll', args)
end

#set(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 17

def set(*args)
  criteria, updates = criteria_and_keys_from_args(args)
  updates.each do |key, value|
    updates[key] = keys[key].set(value) if key?(key)
  end
  collection.update(criteria, {'$set' => updates}, :multi => true)
end

#unset(*args) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/modifiers.rb', line 25

def unset(*args)
  if args[0].is_a?(Hash)
    criteria, keys = args.shift, args
  else
    keys, ids = args.partition { |arg| arg.is_a?(Symbol) }
    criteria = {:id => ids}
  end

  criteria  = query(criteria).criteria.to_hash
  modifiers = keys.inject({}) { |hash, key| hash[key] = 1; hash }
  collection.update(criteria, {'$unset' => modifiers}, :multi => true)
end