Laravel validation regex, breaks in view

Question

So, I have the following rules in my model:

public static $rules = array(
    'name'            => 'required|alpha_dash|unique:subsidiaries',
    'internal_number' => 'required|alpha_dash|unique:subsidiaries',
    'expedition_rate' => array('required', 'regex:/^[0-9]{1,3}(\.?)[0-9]{1,2}$/'),
    'hundred_kg_rate' => array('regex:/^[0-9]{1,5}(\.?)[0-9]{1,2}$/'),
    'handling'        => array('regex:/^[0-9]{1,3}(\.?)[0-9]{1,2}$/'),
    'insurance'       => 'required|numeric',
);

But, for some reason, when the regex is applied in the pattern attribute tag in html... it breaks!

Result:

<input required="true" pattern="^[0-9]{" class="form-control" ....>
                               _________
                                 \
                                  => This right here should be
                               ^[0-9]{1,3}(\.?)[0-9]{1,2}$

Where are you outputting it, though? Are you using Former, by any chance? — rmobis
– rmobis, Commented Sep 23, 2013 at 17:18
@Raphael_ Actually, I am using Former... the rules are passed on from the controller to the view — Alex
– Alex, Commented Sep 27, 2013 at 21:55

Vivek Pandey · Accepted Answer · 2014-09-30 14:50:53Z

2

Try using like this.

array(
    'field' => 'regex:[a-z]'
);

Hope this would helpful.

answered Sep 30, 2014 at 14:50

Vivek Pandey

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Comments

Thomas Kelley · Accepted Answer · 2013-09-23 15:29:33Z

0

Try escaping the curly braces... I bet PHP is expecting to parse a variable inside, like this:

$var = 'something';
echo 'The value is {$var}.';
// Outputs:
// The value is something.

Contrast this with:

$var = 'something';
echo 'The value is \{$var\}.';
// Outputs:
// The value is $var.

The part that confuses me though, is that these are within single quotes, and so this shouldn't happen. Maybe a Laravel thing?

answered Sep 23, 2013 at 15:29

Thomas Kelley

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7 Comments

Alex Over a year ago

How can one, escape curly braces in a regex syntax? This is new for me

Thomas Kelley Over a year ago

Double all of the backslashes.

Thomas Kelley Over a year ago

Sorry, I think I misunderstood your question. To escape the curly brace, you should just be able to do \{...\}. When it renders, it shouldn't have that backslash.

Thomas Kelley Over a year ago

That's weird. You may want to ask this question over at Laravel's GitHub... It might very well be a bug. I looked at their validation test cases, and none of them include curly braces: github.com/laravel/framework/blob/…

Thomas Kelley Over a year ago

Interesting. In your case, rather than write a custom validator, you could instead just rewrite your RegEx to not include that comma. For example, x{1,3} can also be represented as xx?x?. At any rate, good luck with your project!

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