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authorJohn Mileham <jmileham@gmail.com>2011-03-24 15:03:08 -0400
committerJohn Mileham <jmileham@gmail.com>2011-03-24 15:03:08 -0400
commitb44a0ec153c84384e9b97a069e81f28bc5c2a4bf (patch)
tree94713aff0c241f91530dfd714bf685019c84ccab /railties/guides/source/migrations.textile
parentd5994ee48af14d67f0eec7d23863d4b19211b078 (diff)
parent5214e73850916de3c9127d35a4ecee0424d364a3 (diff)
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Merge branch 'master' of github.com:rails/rails into count_behavior
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@@ -586,7 +586,7 @@ The Active Record way claims that intelligence belongs in your models, not in th
Validations such as +validates :foreign_key, :uniqueness => true+ are one way in which models can enforce data integrity. The +:dependent+ option on associations allows models to automatically destroy child objects when the parent is destroyed. Like anything which operates at the application level these cannot guarantee referential integrity and so some people augment them with foreign key constraints.
-Although Active Record does not provide any tools for working directly with such features, the +execute+ method can be used to execute arbitrary SQL. There are also a number of plugins such as "foreign_key_migrations":http://github.com/harukizaemon/redhillonrails/tree/master/foreign_key_migrations/ which add foreign key support to Active Record (including support for dumping foreign keys in +db/schema.rb+).
+Although Active Record does not provide any tools for working directly with such features, the +execute+ method can be used to execute arbitrary SQL. There are also a number of plugins such as "foreign_key_migrations":https://github.com/harukizaemon/redhillonrails/tree/master/foreign_key_migrations/ which add foreign key support to Active Record (including support for dumping foreign keys in +db/schema.rb+).
h3. Changelog