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.
class Person < ActiveRecord::Base has_many :pets end person.pets.size # => 3 person.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 # => 2 person.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 # => 0 person.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.
person.pets.size # => 3
person.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 # => 2
person.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 # => 0
person.pets # => []
Pet.find(4, 5, 6) # => ActiveRecord::RecordNotFound: Couldn't find all Pets with IDs (4, 5, 6)
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