kotovalexarian-likes-github/rails--rails
1
0
Fork 0
mirror of https://github.com/rails/rails.git synced 2022-11-09 12:12:34 -05:00
Code Releases Activity

association_basics, updated how inverse_of works

Browse source 
Fixed bug in the example code. A bit related to rails issue in
 https://github.com/rails/rails/issues/3223
This commit is contained in:
Olli Huotari 2012-08-20 11:17:26 +03:00
parent 7c584256d1
commit 8cb9460437
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
guides/source/association_basics.textile
View file

@ -520,7 +520,7 @@ By default, Active Record doesn't know about the connection between these associ
<ruby>
c = Customer.first
o = c.orders.first
o = c.orders[0]
c.first_name == o.customer.first_name # => true
c.first_name = 'Manny'
c.first_name == o.customer.first_name # => false
@ -542,7 +542,7 @@ With these changes, Active Record will only load one copy of the customer object
<ruby>
c = Customer.first
o = c.orders.first
o = c.orders[0]
c.first_name == o.customer.first_name # => true
c.first_name = 'Manny'
c.first_name == o.customer.first_name # => true
@ -550,6 +550,7 @@ c.first_name == o.customer.first_name # => true
There are a few limitations to +inverse_of+ support:
* They do not work with methods that invoke new query. E.g. using c.orders.first instead of c.orders[0] in the code above
* They do not work with <tt>:through</tt> associations.
* They do not work with <tt>:polymorphic</tt> associations.
* They do not work with <tt>:as</tt> associations.