class Mongoid::Association::Embedded::EmbedsMany::Proxy
Public Class Methods
Instantiate a new embeds_many association.
@example Create the new association.
Many.new(person, addresses, association)
@param [ Document ] base The document this association hangs off of. @param [ Array<Document> ] target The child documents of the association. @param [ Association ] association The association metadata
@return [ Many ] The proxy.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 234 def initialize(base, target, association) init(base, target, association) do _target.each_with_index do |doc, index| integrate(doc) doc._index = index end @_unscoped = _target.dup @_target = scope(_target) end end
Private Class Methods
Returns true if the association is an embedded one. In this case always true.
@example Is the association embedded?
Association::Embedded::EmbedsMany.embedded?
@return [ true ] true.
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 540 def embedded? true end
Returns the suffix of the foreign key field, either “_id” or “_ids”.
@example Get the suffix for the foreign key.
Association::Embedded::EmbedsMany.foreign_key_suffix
@return [ nil ] nil.
@since 3.0.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 552 def foreign_key_suffix nil end
Public Instance Methods
Appends a document or array of documents to the association. Will set the parent and update the index in the process.
@example Append a document.
person.addresses << address
@example Push a document.
person.addresses.push(address)
@param [ Document, Array<Document> ] args Any number of documents.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 22 def <<(*args) docs = args.flatten return concat(docs) if docs.size > 1 if doc = docs.first append(doc) doc.save if persistable? && !_assigning? end self end
Get this association as as its representation in the database.
@example Convert the association to an attributes hash.
person.addresses.as_document
@return [ Array<Hash> ] The association as stored in the db.
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 42 def as_document as_attributes.collect { |attrs| BSON::Document.new(attrs) } end
Builds a new document in the association and appends it to the target. Takes an optional type if you want to specify a subclass.
@example Build a new document on the association.
person.people.build(:name => "Bozo")
@param [ Hash ] attributes The attributes to build the document with. @param [ Class ] type Optional class to build the document with.
@return [ Document ] The new document.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 72 def build(attributes = {}, type = nil) doc = Factory.build(type || _association.klass, attributes) append(doc) doc.apply_post_processed_defaults yield(doc) if block_given? doc.run_callbacks(:build) { doc } _base._reset_memoized_children! doc end
Clear the association. Will delete the documents from the db if they are already persisted.
If the host document is not persisted but its _id matches a persisted document, calling clear on an association will remove the association's documents from the database even though the set of documents in the application (as loaded in the host) is different from what is in the database, and the host may not contain any persisted documents in the association either.
@example Clear the association.
person.addresses.clear
@return [ self ] The empty association.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 98 def clear batch_clear(_target.dup) self end
Appends an array of documents to the association. Performs a batch insert of the documents instead of persisting one at a time.
@example Concat with other documents.
person.addresses.concat([ address_one, address_two ])
@param [ Array<Document> ] docs The docs to add.
@return [ Array<Document> ] The documents.
@since 2.4.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 57 def concat(docs) batch_insert(docs) unless docs.empty? self end
Returns a count of the number of documents in the association that have actually been persisted to the database.
Use size if you want the total number of documents.
@example Get the count of persisted documents.
person.addresses.count
@return [ Integer ] The total number of persisted embedded docs, as
flagged by the #persisted? method.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 113 def count _target.select { |doc| doc.persisted? }.size end
Delete the supplied document from the target. This method is proxied in order to reindex the array after the operation occurs.
@example Delete the document from the association.
person.addresses.delete(address)
@param [ Document ] document The document to be deleted.
@return [ Document, nil ] The deleted document or nil if nothing deleted.
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 128 def delete(document) execute_callback :before_remove, document doc = _target.delete_one(document) if doc && !_binding? _unscoped.delete_one(doc) if _assigning? _base.add_atomic_pull(doc) else doc.delete(suppress: true) unbind_one(doc) end end reindex execute_callback :after_remove, document doc end
Delete all the documents in the association without running callbacks.
@example Delete all documents from the association.
person.addresses.delete_all
@example Conditionally delete documents from the association.
person.addresses.delete_all({ :street => "Bond" })
@param [ Hash ] conditions Conditions on which documents to delete.
@return [ Integer ] The number of documents deleted.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 156 def delete_all(conditions = {}) remove_all(conditions, :delete) end
Delete all the documents for which the provided block returns true.
@example Delete the matching documents.
person.addresses.delete_if do |doc| doc.state == "GA" end
@return [ Many, Enumerator ] The association or an enumerator if no
block was provided.
@since 3.1.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 171 def delete_if if block_given? dup_target = _target.dup dup_target.each do |doc| delete(doc) if yield(doc) end self else super end end
Destroy all the documents in the association whilst running callbacks.
@example Destroy all documents from the association.
person.addresses.destroy_all
@example Conditionally destroy documents from the association.
person.addresses.destroy_all({ :street => "Bond" })
@param [ Hash ] conditions Conditions on which documents to destroy.
@return [ Integer ] The number of documents destroyed.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 194 def destroy_all(conditions = {}) remove_all(conditions, :destroy) end
Determine if any documents in this association exist in the database.
@example Are there persisted documents?
person.posts.exists?
@return [ true, false ] True is persisted documents exist, false if not.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 204 def exists? count > 0 end
Finds a document in this association through several different methods.
@example Find a document by its id.
person.addresses.find(BSON::ObjectId.new)
@example Find documents for multiple ids.
person.addresses.find([ BSON::ObjectId.new, BSON::ObjectId.new ])
@param [ Array<Object> ] args Various arguments.
@return [ Array<Document>, Document ] A single or multiple documents.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 220 def find(*args) criteria.find(*args) end
Get all the documents in the association that are loaded into memory.
@example Get the in memory documents.
relation.in_memory
@return [ Array<Document> ] The documents in memory.
@since 2.1.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 253 def in_memory _target end
Pop documents off the association. This can be a single document or multiples, and will automatically persist the changes.
@example Pop a single document.
relation.pop
@example Pop multiple documents.
relation.pop(3)
@param [ Integer ] count The number of documents to pop, or 1 if not
provided.
@return [ Document, Array<Document> ] The popped document(s).
@since 3.0.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 272 def pop(count = nil) if count if docs = _target[_target.size - count, _target.size] docs.each { |doc| delete(doc) } end else delete(_target[-1]) end end
Shift documents off the association. This can be a single document or multiples, and will automatically persist the changes.
@example Shift a single document.
relation.shift
@example Shift multiple documents.
relation.shift(3)
@param [ Integer ] count The number of documents to shift, or 1 if not
provided.
@return [ Document, Array<Document> ] The shifted document(s).
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 295 def shift(count = nil) if count if _target.size > 0 && docs = _target[0, count] docs.each { |doc| delete(doc) } end else delete(_target[0]) end end
Substitutes the supplied target documents for the existing documents in the relation.
@example Substitute the association's target.
person.addresses.substitute([ address ])
@param [ Array<Document> ] docs The replacement docs.
@return [ Many ] The proxied association.
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 316 def substitute(docs) batch_replace(docs) self end
Return the association with all previous scoping removed. This is the exact representation of the docs in the database.
@example Get the unscoped documents.
person.addresses.unscoped
@return [ Criteria ] The unscoped association.
@since 2.4.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 330 def unscoped criterion = klass.unscoped criterion.embedded = true criterion.documents = _unscoped.delete_if(&:marked_for_destruction?) criterion end
Private Instance Methods
Get the internal unscoped documents.
@example Get the unscoped documents.
relation._unscoped
@return [ Array<Document> ] The unscoped documents.
@since 2.4.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 503 def _unscoped @_unscoped ||= [] end
Set the internal unscoped documents.
@example Set the unscoped documents.
relation._unscoped = docs
@param [ Array<Document> ] docs The documents.
@return [ Array<Document ] The unscoped docs.
@since 2.4.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 517 def _unscoped=(docs) @_unscoped = docs end
Appends the document to the target array, updating the index on the document at the same time.
@example Append to the document.
relation.append(document)
@param [ Document ] document The document to append to the target.
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 352 def append(document) execute_callback :before_add, document unless object_already_related?(document) _target.push(*scope([document])) end _unscoped.push(document) integrate(document) document._index = _unscoped.size - 1 execute_callback :after_add, document end
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 521 def as_attributes attributes = [] _unscoped.each do |doc| attributes.push(doc.as_document) end attributes end
Instantiate the binding associated with this association.
@example Create the binding.
relation.binding([ address ])
@return [ Binding ] The many binding.
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 371 def binding Binding.new(_base, _target, _association) end
Returns the Criteria
object for the target class with its
documents set to the list of target documents in the association.
@return [ Criteria ] A new criteria.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 379 def criteria _association.criteria(_base, _target) end
Deletes one document from the target and unscoped.
@api private
@example Delete one document.
relation.delete_one(doc)
@param [ Document ] document The document to delete.
@since 2.4.7
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 393 def delete_one(document) _target.delete_one(document) _unscoped.delete_one(document) reindex end
Integrate the document into the association. will set its metadata and attempt to bind the inverse.
@example Integrate the document.
relation.integrate(document)
@param [ Document ] document The document to integrate.
@since 2.1.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 408 def integrate(document) characterize_one(document) bind_one(document) end
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 423 def method_missing(name, *args, &block) return super if _target.respond_to?(name) klass.send(:with_scope, criteria) do criteria.public_send(name, *args, &block) end end
Are we able to persist this association?
@example Can we persist the association?
relation.persistable?
@return [ true, false ] If the association is persistable.
@since 2.1.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 438 def persistable? _base.persisted? && !_binding? end
Reindex all the target elements. This is useful when performing operations on the proxied target directly and the indices need to match that on the database side.
@example Reindex the association.
person.addresses.reindex
@since 2.0.0.rc.1
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 450 def reindex _unscoped.each_with_index do |doc, index| doc._index = index end end
Remove all documents from the association, either with a delete or a destroy depending on what this was called through.
@example Destroy documents from the association.
relation.remove_all({ :num => 1 }, true)
@param [ Hash ] conditions Conditions to filter by. @param [ true, false ] method :delete or :destroy.
@return [ Integer ] The number of documents removed.
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 488 def remove_all(conditions = {}, method = :delete) criteria = where(conditions || {}) removed = criteria.size batch_remove(criteria, method) removed end
Apply the association ordering and default scoping (defined on association's target class) to the provided documents.
@example Apply scoping.
person.addresses.scope(target)
@param [ Array<Document> ] docs The documents to scope.
@return [ Array<Document> ] The scoped docs.
@since 2.4.0
# File lib/mongoid/association/embedded/embeds_many/proxy.rb, line 467 def scope(docs) unless _association.order || _association.klass.default_scoping? return docs end crit = _association.klass.order_by(_association.order) crit.embedded = true crit.documents = docs crit.entries end