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Constraints - empty strings and null values #5288

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Jun 11, 2015
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Constraints - empty strings and null values #5288

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4 changes: 4 additions & 0 deletions reference/constraints/Length.rst
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Expand Up @@ -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
~~~

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