class Mongoid::Association::Referenced::HasAndBelongsToMany::Binding
Binding
class for all has_and_belongs_to_many associations.
Public Instance Methods
bind_one(doc)
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Binds a single document with the inverse association. Used specifically when appending to the proxy.
@example Bind one document.
person.preferences.bind_one(preference)
@param [ Document
] doc The single document to bind.
# File lib/mongoid/association/referenced/has_and_belongs_to_many/binding.rb, line 20 def bind_one(doc) binding do inverse_keys = try_method(doc, _association.inverse_foreign_key) unless doc.frozen? if inverse_keys record_id = inverse_record_id(doc) unless inverse_keys.include?(record_id) try_method(doc, _association.inverse_foreign_key_setter, inverse_keys.push(record_id)) end doc.reset_relation_criteria(_association.inverse) end _base._synced[_association.foreign_key] = true doc._synced[_association.inverse_foreign_key] = true end end
determine_inverse_association(doc)
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Find the inverse association given a document.
@param [ Mongoid::Document
] doc The document for which
to determine the inverse association.
@return [ Mongoid::Association::Relatable
] The inverse association.
# File lib/mongoid/association/referenced/has_and_belongs_to_many/binding.rb, line 77 def determine_inverse_association(doc) doc.relations[_base.class.name.demodulize.underscore.pluralize] end
inverse_record_id(doc)
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Find the inverse id referenced by inverse_keys
@param [ Mongoid::Document
] doc The document for which
to determine the inverse id.
@return [ BSON::ObjectId ] The inverse id.
# File lib/mongoid/association/referenced/has_and_belongs_to_many/binding.rb, line 58 def inverse_record_id(doc) if pk = _association.options[:inverse_primary_key] _base.send(pk) else inverse_association = determine_inverse_association(doc) if inverse_association _base.__send__(inverse_association.primary_key) else _base._id end end end
unbind_one(doc)
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Unbind a single document.
@example Unbind the document.
person.preferences.unbind_one(document)
# File lib/mongoid/association/referenced/has_and_belongs_to_many/binding.rb, line 39 def unbind_one(doc) binding do _base.send(_association.foreign_key).delete_one(record_id(doc)) inverse_keys = try_method(doc, _association.inverse_foreign_key) unless doc.frozen? if inverse_keys inverse_keys.delete_one(inverse_record_id(doc)) doc.reset_relation_criteria(_association.inverse) end _base._synced[_association.foreign_key] = true doc._synced[_association.inverse_foreign_key] = true end end