destroy(*records)
Instance Public methods
Destroys the records supplied and removes them from the
collection. This method will always remove record from the
database ignoring the :dependent option. Returns an array with
the removed records.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | class Person < ActiveRecord::Base has_many :petsendperson.pets.size # => 3person.pets# => [# #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>,# #<Pet id: 2, name: "Spook", person_id: 1>,# #<Pet id: 3, name: "Choo-Choo", person_id: 1># ]person.pets.destroy(Pet.find(1))# => [#<Pet id: 1, name: "Fancy-Fancy", person_id: 1>]person.pets.size # => 2person.pets# => [# #<Pet id: 2, name: "Spook", person_id: 1>,# #<Pet id: 3, name: "Choo-Choo", person_id: 1># ]person.pets.destroy(Pet.find(2), Pet.find(3))# => [# #<Pet id: 2, name: "Spook", person_id: 1>,# #<Pet id: 3, name: "Choo-Choo", person_id: 1># ]person.pets.size # => 0person.pets # => []Pet.find(1, 2, 3) # => ActiveRecord::RecordNotFound: Couldn't find all Pets with IDs (1, 2, 3) |
You can pass Fixnum or String values, it finds
the records responding to the id and then deletes them from
the database.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | person.pets.size # => 3person.pets# => [# #<Pet id: 4, name: "Benny", person_id: 1>,# #<Pet id: 5, name: "Brain", person_id: 1>,# #<Pet id: 6, name: "Boss", person_id: 1># ]person.pets.destroy("4")# => #<Pet id: 4, name: "Benny", person_id: 1>person.pets.size # => 2person.pets# => [# #<Pet id: 5, name: "Brain", person_id: 1>,# #<Pet id: 6, name: "Boss", person_id: 1># ]person.pets.destroy(5, 6)# => [# #<Pet id: 5, name: "Brain", person_id: 1>,# #<Pet id: 6, name: "Boss", person_id: 1># ]person.pets.size # => 0person.pets # => []Pet.find(4, 5, 6) # => ActiveRecord::RecordNotFound: Couldn't find all Pets with IDs (4, 5, 6) |
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