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Update Attribute Was with a link to the ActiveModel module.

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jbranchaud
2015-02-27 07:24:21 -06:00
parent 973eb974e5
commit 9925a7db09
1 changed files with 6 additions and 4 deletions
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rails/attribute-was.md
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@@ -2,10 +2,12 @@
When modifying the attributes of an `ActiveRecord` object, you may want to When modifying the attributes of an `ActiveRecord` object, you may want to
know what values the modified attributes used to have. `ActiveRecord` gets know what values the modified attributes used to have. `ActiveRecord` gets
some handy methods from the `ActiveModel::Dirty` module that allow you to some handy methods from the
check these values out even if the object's attributes were changed before [`ActiveModel::Dirty`](http://api.rubyonrails.org/classes/ActiveModel/Dirty.html)
you received it (though you are out of luck once it has been saved). module that allow you to check these values out even if the object's
Just add `_was` onto the end of the attribute in question. attributes were changed before you received it (though you are out of luck
once it has been saved). Just add `_was` onto the end of the attribute in
question.
```ruby ```ruby
>> pokemon.name >> pokemon.name