Module: Mongoid::Contextual::Atomic

Defined in:
lib/mongoid/contextual/atomic.rb

Instance Method Summary collapse

Instance Method Details

#add_each_to_set(adds) ⇒ nil

Perform an atomic $addToSet/$each on the matching documents.

Examples:

Add the value to the set.

context.add_each_to_set(members: ["Dave", "Bill"], genres: ["Electro", "Disco"])

Parameters:

  • adds (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



27
28
29
 
# File 'lib/mongoid/contextual/atomic.rb', line 27

def add_each_to_set(adds)
  view.update_many("$addToSet" => collect_each_operations(adds))
end

#add_to_set(adds) ⇒ nil

Execute an atomic $addToSet on the matching documents.

Examples:

Add the value to the set.

context.add_to_set(members: "Dave", genres: "Electro")

Parameters:

  • adds (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



15
16
17
 
# File 'lib/mongoid/contextual/atomic.rb', line 15

def add_to_set(adds)
  view.update_many("$addToSet" => collect_operations(adds))
end

#bit(bits) ⇒ nil

Perform an atomic $bit operation on the matching documents.

Examples:

Perform the bitwise op.

context.bit(likes: { and: 14, or: 4 })

Parameters:

  • bits (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



39
40
41
 
# File 'lib/mongoid/contextual/atomic.rb', line 39

def bit(bits)
  view.update_many("$bit" => collect_operations(bits))
end

#inc(incs) ⇒ nil

Perform an atomic $inc operation on the matching documents.

Examples:

Perform the atomic increment.

context.inc(likes: 10)

Parameters:

  • incs (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



51
52
53
 
# File 'lib/mongoid/contextual/atomic.rb', line 51

def inc(incs)
  view.update_many("$inc" => collect_operations(incs))
end

#pop(pops) ⇒ nil

Perform an atomic $pop operation on the matching documents.

Examples:

Pop the first value on the matches.

context.pop(members: -1)

Pop the last value on the matches.

context.pop(members: 1)

Parameters:

  • pops (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



66
67
68
 
# File 'lib/mongoid/contextual/atomic.rb', line 66

def pop(pops)
  view.update_many("$pop" => collect_operations(pops))
end

#pull(pulls) ⇒ nil

Note:

Expression pulling is not yet supported.

Perform an atomic $pull operation on the matching documents.

Examples:

Pull the value from the matches.

context.pull(members: "Dave")

Parameters:

  • pulls (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



80
81
82
 
# File 'lib/mongoid/contextual/atomic.rb', line 80

def pull(pulls)
  view.update_many("$pull" => collect_operations(pulls))
end

#pull_all(pulls) ⇒ nil

Perform an atomic $pullAll operation on the matching documents.

Examples:

Pull all the matching values from the matches.

context.pull_all(:members, [ "Alan", "Vince" ])

Parameters:

  • pulls (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



92
93
94
 
# File 'lib/mongoid/contextual/atomic.rb', line 92

def pull_all(pulls)
  view.update_many("$pullAll" => collect_operations(pulls))
end

#push(pushes) ⇒ nil

Perform an atomic $push operation on the matching documents.

Examples:

Push the value to the matching docs.

context.push(members: "Alan")

Parameters:

  • pushes (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



104
105
106
 
# File 'lib/mongoid/contextual/atomic.rb', line 104

def push(pushes)
  view.update_many("$push" => collect_operations(pushes))
end

#push_all(pushes) ⇒ nil

Perform an atomic $push/$each operation on the matching documents.

Examples:

Push the values to the matching docs.

context.push_all(members: [ "Alan", "Fletch" ])

Parameters:

  • pushes (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



116
117
118
 
# File 'lib/mongoid/contextual/atomic.rb', line 116

def push_all(pushes)
  view.update_many("$push" => collect_each_operations(pushes))
end

#rename(renames) ⇒ nil

Perform an atomic $rename of fields on the matching documents.

Examples:

Rename the fields on the matching documents.

context.rename(members: :artists)

Parameters:

  • renames (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



128
129
130
131
132
133
134
 
# File 'lib/mongoid/contextual/atomic.rb', line 128

def rename(renames)
  operations = renames.inject({}) do |ops, (old_name, new_name)|
    ops[old_name] = new_name.to_s
    ops
  end
  view.update_many("$rename" => collect_operations(operations))
end

#set(sets) ⇒ nil

Perform an atomic $set of fields on the matching documents.

Examples:

Set the field value on the matches.

context.set(name: "Depeche Mode")

Parameters:

  • sets (Hash) —

    The operations.

Returns:

  • (nil) —

    Nil.



144
145
146
 
# File 'lib/mongoid/contextual/atomic.rb', line 144

def set(sets)
  view.update_many("$set" => collect_operations(sets))
end

#unset(*args) ⇒ nil

Perform an atomic $unset of a field on the matching documents.

Examples:

Unset the field on the matches.

context.unset(:name)

Parameters:

  • args (String | Symbol | Array<String|Symbol> | Hash) —

    The name(s) of the field(s) to unset. If a Hash is specified, its keys will be used irrespective of what each key’s value is, even if the value is nil or false.

Returns:

  • (nil) —

    Nil.



159
160
161
162
163
164
 
# File 'lib/mongoid/contextual/atomic.rb', line 159

def unset(*args)
  fields = args.map { |a| a.is_a?(Hash) ? a.keys : a }
               .__find_args__
               .map { |f| [database_field_name(f), true] }
  view.update_many("$unset" => Hash[fields])
end