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authorZachary Scott <e@zzak.io>2014-12-09 13:41:10 -0800
committerZachary Scott <e@zzak.io>2014-12-09 13:41:10 -0800
commit6b1cd5a10e4ae3fb048d8e6bf45549a7b2055c71 (patch)
tree32e39210f3389b1c2694f8b89c47b8e0c41fde7a /guides/source
parent7c11ce6fe1d1f76294d45e93685dc9c7938eb975 (diff)
parent5d6c6ec0996249d2d4a6dc8e144163125626db16 (diff)
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Merge pull request #17987 from andreynering/ar-validation-doc
Adding information about 'allow_nil' option for 'numericality' [ci skip]
Diffstat (limited to 'guides/source')
-rw-r--r--guides/source/active_record_validations.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md
index 546c0608ee..7628b8278d 100644
--- a/guides/source/active_record_validations.md
+++ b/guides/source/active_record_validations.md
@@ -487,6 +487,8 @@ constraints to acceptable values:
* `:even` - Specifies the value must be an even number if set to true. The
default error message for this option is _"must be even"_.
+NOTE: By default, `numericality` doesn't allow `nil` values. You can use `allow_nil: true` option to permit it.
+
The default error message is _"is not a number"_.
### `presence`