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Associations guide: Add note that you must use the build_ prefix to build associations of the belongs_to and has_one type

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Ryan Bigg 2010-12-02 13:29:17 +11:00
parent 949eb91d0e
commit 697f734455
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railties/guides/source/association_basics.textile
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@ -550,6 +550,8 @@ build_customer
create_customer
</ruby>
NOTE: When creating a new +belongs_to+ or +has_one+ association you must use the +build_+ prefix to build the association, rather than the +association.build+ method that would be used for +has_many+ or +has_and_belongs_to_many+ associations.
h6(#belongs_to-association). <tt><em>association</em>(force_reload = false)</tt>
The <tt><em>association</em></tt> method returns the associated object, if any. If no associated object is found, it returns +nil+.
@ -817,6 +819,8 @@ build_account
create_account
</ruby>
NOTE: When creating a new +has_one+ or +belongs_to+ association you must use the +build_+ prefix to build the association, rather than the +association.build+ method that would be used for +has_many+ or +has_and_belongs_to_many+ associations.
h6(#has_one-association). <tt><em>association</em>(force_reload = false)</tt>
The <tt><em>association</em></tt> method returns the associated object, if any. If no associated object is found, it returns +nil+.