Rails update_all

Clarification with use of update_all. I would like to point out that if you are on rails 2. It should receive only values that can be passed as-is to the SQL . How to access raw SQL statement generated by update_all. Weitere Ergebnisse von stackoverflow.

Steps to reproduce Sitter. ActiveRecord magic got me like whaaaaaaat? Expected behavior UPDATE sitters SET . The most promising for our case is: update_all.

I want to mark these particular questions as active. Leads to awesomeness and unicorns when used in production. You can also update all objects at once using update_all class method. Paul Leader Profile Image.

The update_all method takes two parameters, the set part of the SQL statement and. Trying to handle millions of user data? Update a single record as follows: Book. Am I doing something wrong or is this . What is difference between update_all , update, update_attribute, update_attributes methods of Active Record. Bonus points: use update_all or raw SQL to perform the mass update . This article will help you to . Finally, the update_all class method allows us to specify the set and where clauses of the . There is a work-around by using update_all.

SQL UPDATE call on each of the rows and . Like delete_all , update_all accepts any SQL as a string. You may want attr_accessor for those fields. Rails method that allows you to .