minor #5288 Constraints - empty strings and null values (anacicconi)

weaverryan · weaverryan · commit 31e613a319ea · 2015-06-11T11:44:08.000-04:00
This PR was merged into the 2.3 branch. Discussion ---------- Constraints - empty strings and null values | Q | A | ------------- | --- | Doc fix? | yes | New docs? | no | Applies to | all | Fixed tickets | #4244 Commits ------- 2616acd Constraints - empty strings and null values
diff --git a/reference/constraints/Length.rst b/reference/constraints/Length.rst
@@ -115,6 +115,10 @@ min
 This required option is the "min" length value. Validation will fail if
 the given value's length is **less** than this min value.
 
+It is important to notice that NULL values and empty strings are considered 
+valid no matter if the constraint required a minimum length. Validators are 
+triggered only if the value is not blank.
+
 max
 ~~~
 
