Is it possible to update an entire record using an object in rails?
I was wondering if I could update a record (entire row) given a replacement activerecord object.
Something like
Car.find_by(number: 1) = replacement_information_for_car_1
where replacement_information_for_car_1 is a Car activerecord object that I would like to use to replace the old record currently on the table.
ruby-on-rails activerecord
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
add a comment |
I was wondering if I could update a record (entire row) given a replacement activerecord object.
Something like
Car.find_by(number: 1) = replacement_information_for_car_1
where replacement_information_for_car_1 is a Car activerecord object that I would like to use to replace the old record currently on the table.
ruby-on-rails activerecord
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
add a comment |
I was wondering if I could update a record (entire row) given a replacement activerecord object.
Something like
Car.find_by(number: 1) = replacement_information_for_car_1
where replacement_information_for_car_1 is a Car activerecord object that I would like to use to replace the old record currently on the table.
ruby-on-rails activerecord
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
I was wondering if I could update a record (entire row) given a replacement activerecord object.
Something like
Car.find_by(number: 1) = replacement_information_for_car_1
where replacement_information_for_car_1 is a Car activerecord object that I would like to use to replace the old record currently on the table.
ruby-on-rails activerecord
ruby-on-rails activerecord
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
edited Nov 14 '18 at 19:14
Sergio Tulentsev
182k30292308
182k30292308
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
asked Nov 14 '18 at 19:00
John GringusJohn Gringus
265
265
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You could do something like:
attributes = replacement_information_for_car_1.attributes
attributes.delete('id') # and anything else you don't want/can't be copied
Car.find_by(number: 1).update(attributes)
Not the cutest thing in the world, but it should do the trick.
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
add a comment |
The thing about ActiveRecord objects is that they have a unique identifier that you don't want to override. You'll have to assign the attributes without the id, that is most likely to be nil in your example.
Car.find_by(number: 1).update(replacement_information_for_car_1.attributes.except(:id))
That's a long line that can be refactored to something like
new_attributes = replacement_information_for_car_1.attributes.except(:id)
Car.find_by(number: 1).update(new_attributes)
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You could do something like:
attributes = replacement_information_for_car_1.attributes
attributes.delete('id') # and anything else you don't want/can't be copied
Car.find_by(number: 1).update(attributes)
Not the cutest thing in the world, but it should do the trick.
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
add a comment |
You could do something like:
attributes = replacement_information_for_car_1.attributes
attributes.delete('id') # and anything else you don't want/can't be copied
Car.find_by(number: 1).update(attributes)
Not the cutest thing in the world, but it should do the trick.
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
add a comment |
You could do something like:
attributes = replacement_information_for_car_1.attributes
attributes.delete('id') # and anything else you don't want/can't be copied
Car.find_by(number: 1).update(attributes)
Not the cutest thing in the world, but it should do the trick.
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
You could do something like:
attributes = replacement_information_for_car_1.attributes
attributes.delete('id') # and anything else you don't want/can't be copied
Car.find_by(number: 1).update(attributes)
Not the cutest thing in the world, but it should do the trick.
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
answered Nov 14 '18 at 19:10
jbeckjbeck
1,40411620
1,40411620
add a comment |
add a comment |
The thing about ActiveRecord objects is that they have a unique identifier that you don't want to override. You'll have to assign the attributes without the id, that is most likely to be nil in your example.
Car.find_by(number: 1).update(replacement_information_for_car_1.attributes.except(:id))
That's a long line that can be refactored to something like
new_attributes = replacement_information_for_car_1.attributes.except(:id)
Car.find_by(number: 1).update(new_attributes)
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
add a comment |
The thing about ActiveRecord objects is that they have a unique identifier that you don't want to override. You'll have to assign the attributes without the id, that is most likely to be nil in your example.
Car.find_by(number: 1).update(replacement_information_for_car_1.attributes.except(:id))
That's a long line that can be refactored to something like
new_attributes = replacement_information_for_car_1.attributes.except(:id)
Car.find_by(number: 1).update(new_attributes)
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
add a comment |
The thing about ActiveRecord objects is that they have a unique identifier that you don't want to override. You'll have to assign the attributes without the id, that is most likely to be nil in your example.
Car.find_by(number: 1).update(replacement_information_for_car_1.attributes.except(:id))
That's a long line that can be refactored to something like
new_attributes = replacement_information_for_car_1.attributes.except(:id)
Car.find_by(number: 1).update(new_attributes)
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
The thing about ActiveRecord objects is that they have a unique identifier that you don't want to override. You'll have to assign the attributes without the id, that is most likely to be nil in your example.
Car.find_by(number: 1).update(replacement_information_for_car_1.attributes.except(:id))
That's a long line that can be refactored to something like
new_attributes = replacement_information_for_car_1.attributes.except(:id)
Car.find_by(number: 1).update(new_attributes)
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
answered Nov 14 '18 at 19:13
Sophie DézielSophie Déziel
404211
404211
add a comment |
add a comment |
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