class Mongoid::Relations::Bindings::Referenced::ManyToMany
Binding class for all references_and_referenced_in_many relations.
Public Instance Methods
bind_one(doc)
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Binds a single document with the inverse relation. Used specifically when appending to the proxy.
@example Bind one document.
person.preferences.bind_one(preference)
@param [ Document ] doc The single document to bind.
@since 2.0.0.rc.1
# File lib/mongoid/relations/bindings/referenced/many_to_many.rb, line 18 def bind_one(doc) binding do inverse_keys = doc.you_must(metadata.inverse_foreign_key) if inverse_keys record_id = inverse_record_id(doc) unless inverse_keys.include?(record_id) doc.you_must(metadata.inverse_foreign_key_setter, inverse_keys.push(record_id)) end doc.reset_relation_criteria(metadata.inverse) end base.synced[metadata.foreign_key] = true doc.synced[metadata.inverse_foreign_key] = true end end
determine_inverse_metadata(doc)
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# File lib/mongoid/relations/bindings/referenced/many_to_many.rb, line 62 def determine_inverse_metadata(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
# File lib/mongoid/relations/bindings/referenced/many_to_many.rb, line 53 def inverse_record_id(doc) inverse_metadata = determine_inverse_metadata(doc) if inverse_metadata base.__send__(inverse_metadata.primary_key) else base._id end end
unbind_one(doc)
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Unbind a single document.
@example Unbind the document.
person.preferences.unbind_one(document)
@since 2.0.0.rc.1
# File lib/mongoid/relations/bindings/referenced/many_to_many.rb, line 39 def unbind_one(doc) binding do base.send(metadata.foreign_key).delete_one(record_id(doc)) inverse_keys = doc.you_must(metadata.inverse_foreign_key) if inverse_keys inverse_keys.delete_one(inverse_record_id(doc)) doc.reset_relation_criteria(metadata.inverse) end base.synced[metadata.foreign_key] = true doc.synced[metadata.inverse_foreign_key] = true end end