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如何在Rolify中查找特定資源實例的所有角色?該documentation提出以下建議:在Rolify中查找特定資源實例的所有角色
Forum.find_roles
# => [ list of roles that binded to any Forum instance or to the Forum class ]
但是,如果我需要一個特定的Forum
實例是什麼? Forum.first.find_roles
不起作用。有另一種方法嗎?這就是我試圖用Location
代替Forum
:
2.1.5 :003 > Location.first.find_roles
Location Load (0.3ms) SELECT "locations".* FROM "locations" ORDER BY "locations"."id" ASC LIMIT 1
NoMethodError: undefined method `find_roles' for #<Location:0x007fbe880d1b48>
from /Users/scott/.rvm/gems/[email protected]/gems/activemodel-4.2.1/lib/active_model/attribute_methods.rb:433:in `method_missing'
...
...
...
正是我在找的,謝謝。 – 2015-04-01 00:35:37