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(Página creada con «Rails snippets and whatnot... # Update all customers with the given attributes Customer.update_all wants_email: true # Update all books with 'Rails' in their title B...») |
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# Update all books that match conditions, but limit it to 5 ordered by date | # Update all books that match conditions, but limit it to 5 ordered by date | ||
Book.where('title LIKE ?', '%Rails%').order(:created_at).limit(5).update_all(author: 'David') | Book.where('title LIKE ?', '%Rails%').order(:created_at).limit(5).update_all(author: 'David') | ||
| + | |||
| + | # save records (to force validations) | ||
| + | Issue.all.each { |n| n.save } | ||
Revisión del 16:56 20 abr 2015
Rails snippets and whatnot...
# Update all customers with the given attributes
Customer.update_all wants_email: true
# Update all books with 'Rails' in their title
Book.where('title LIKE ?', '%Rails%').update_all(author: 'David')
# Update all books that match conditions, but limit it to 5 ordered by date
Book.where('title LIKE ?', '%Rails%').order(:created_at).limit(5).update_all(author: 'David')
- save records (to force validations)
Issue.all.each { |n| n.save }
