Module: Mongoid::Relations::Embedded::Batchable

Includes:
Positional
Included in:
Many
Defined in:
lib/mongoid/relations/embedded/batchable.rb

Overview

Contains behaviour for executing operations in batch on embedded documents.

Instance Method Summary (collapse)

Methods included from Positional

#positionally

Instance Method Details

- (Array) batch_clear(docs)

Clear all of the docs out of the relation in a single swipe.

Examples:

Clear all docs.

batchable.batch_clear(docs)

Since:

  • 3.0.0



37
38
39
40
41
42
43
44
45
46
# File 'lib/mongoid/relations/embedded/batchable.rb', line 37

def batch_clear(docs)
  pre_process_batch_remove(docs, :delete)
  unless docs.empty?
    collection.find(selector).update(
      positionally(selector, "$unset" => { path => true })
    )
    post_process_batch_remove(docs, :delete)
  end
  _unscoped.clear
end

- (Array<Hash>) batch_insert(docs)

Insert new documents as a batch push ($pushAll). This ensures that all callbacks are run at the appropriate time and only 1 request is made to the database.

Examples:

Execute the batch push.

batchable.batch_insert([ doc_one, doc_two ])

Since:

  • 3.0.0



23
24
25
# File 'lib/mongoid/relations/embedded/batchable.rb', line 23

def batch_insert(docs)
  execute_batch_insert(docs, "$pushAll")
end

- (Object) batch_remove(docs, method = :delete)

Batch remove the provided documents as a $pullAll.

Examples:

Batch remove the documents.

batchable.batch_remove([ doc_one, doc_two ])

Since:

  • 3.0.0



57
58
59
60
61
62
63
64
65
66
# File 'lib/mongoid/relations/embedded/batchable.rb', line 57

def batch_remove(docs, method = :delete)
  removals = pre_process_batch_remove(docs, method)
  if !docs.empty?
    collection.find(selector).update(
      positionally(selector, "$pullAll" => { path => removals })
    )
    post_process_batch_remove(docs, method)
  end
  reindex
end

- (Array<Hash>) batch_replace(docs)

Batch replace the provided documents as a $set.

Examples:

Batch replace the documents.

batchable.batch_replace([ doc_one, doc_two ])

Since:

  • 3.0.0



78
79
80
81
82
83
84
85
86
87
88
89
90
91
# File 'lib/mongoid/relations/embedded/batchable.rb', line 78

def batch_replace(docs)
  if docs.blank?
    if _assigning? && !empty?
      base.add_atomic_unset(first)
    end
    batch_remove(target.dup)
  else
    base.delayed_atomic_sets.clear unless _assigning?
    docs = normalize_docs(docs).compact
    target.clear and _unscoped.clear
    inserts = execute_batch_insert(docs, "$set")
    add_atomic_sets(inserts)
  end
end