diff options
Diffstat (limited to 'guides/source/association_basics.md')
| -rw-r--r-- | guides/source/association_basics.md | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index cd715aba1f..0079049d44 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -833,6 +833,7 @@ The `belongs_to` association supports these options: * `:polymorphic` * `:touch` * `:validate` +* `:optional` ##### `:autosave` @@ -956,6 +957,10 @@ end If you set the `:validate` option to `true`, then associated objects will be validated whenever you save this object. By default, this is `false`: associated objects will not be validated when this object is saved. +##### `:optional` + +If you set the `:optional` option to `true`, then associated object will be validated for presence. By default, this is `false`: associated objects will be validated for presence. + #### Scopes for `belongs_to` There may be times when you wish to customize the query used by `belongs_to`. Such customizations can be achieved via a scope block. For example: |