diff options
Diffstat (limited to 'activerecord/lib/active_record/base.rb')
-rwxr-xr-x | activerecord/lib/active_record/base.rb | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 2a5385119d..9943a7014a 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -810,25 +810,28 @@ module ActiveRecord #:nodoc: # Updates all records with details given if they match a set of conditions supplied, limits and order can # also be supplied. This method constructs a single SQL UPDATE statement and sends it straight to the - # database. It does not instantiate the involved models and it does not trigger Active Record callbacks. + # database. It does not instantiate the involved models and it does not trigger Active Record callbacks + # or validations. # # ==== Parameters # - # * +updates+ - A string of column and value pairs that will be set on any records that match conditions. This creates the SET clause of the generated SQL. - # * +conditions+ - An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro for more info. + # * +updates+ - A string, array, or hash representing the SET part of an SQL statement. + # * +conditions+ - A string, array, or hash representing the WHERE part of an SQL statement. See conditions in the intro. # * +options+ - Additional options are <tt>:limit</tt> and <tt>:order</tt>, see the examples for usage. # # ==== Examples # - # # Update all billing objects with the 3 different attributes given - # Billing.update_all( "category = 'authorized', approved = 1, author = 'David'" ) + # # Update all customers with the given attributes + # Customer.update_all :wants_email => true # - # # Update records that match our conditions - # Billing.update_all( "author = 'David'", "title LIKE '%Rails%'" ) + # # Update all books with 'Rails' in their title + # Book.update_all "author = 'David'", "title LIKE '%Rails%'" # - # # Update records that match our conditions but limit it to 5 ordered by date - # Billing.update_all( "author = 'David'", "title LIKE '%Rails%'", - # :order => 'created_at', :limit => 5 ) + # # Update all avatars migrated more than a week ago + # Avatar.update_all ['migrated_at = ?, Time.now.utc], ['migrated_at > ?', 1.week.ago] + # + # # Update all books that match our conditions, but limit it to 5 ordered by date + # Book.update_all "author = 'David'", "title LIKE '%Rails%'", :order => 'created_at', :limit => 5 def update_all(updates, conditions = nil, options = {}) sql = "UPDATE #{quoted_table_name} SET #{sanitize_sql_for_assignment(updates)} " |