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Custom validation issue

  1. Hello all,

    I'm having a head-banging issue. I'm using the following docs on the site:

    Using the Gform validation hook
    Gform Validation

    and I'm running into an issue. Maybe I need another set of eyes or something - because the issue seems like it should be *so simple* to fix, but for the life of me, I can't get it to work. My filter looks like so:

    add_filter('gform_validation_1', 'validate_min_group');
    function validate_min_group($validation_result) {
    
    	$form = $validation_result["form"];
    	foreach($form['fields'] as &$field) {
    		if(strpos($field['cssClass'], 'validate-min') === false) continue;
    		$field_value = rgpost("input_{$field['id']}"); // retrieve the value
    
        	if($field_value < '15') {   //if the value is less than 15
        		$validation_result['is_valid'] = false;
        		$field['failed_validation'] = true;
        		$field['validation_message'] = 'A minimum of 15 tickets is required for group pricing.';
        	}
    	}
    
        $validation_result['form'] = $form;
        return $validation_result;
    
    }

    However, no matter what I do, it's absolute: either it ALWAYS returns false, or it ALWAYS returns true.

    It would help if I could print_r() or var_dump the values as they pass, but when I do that, it returns nothing. (for example, print_r($field_value); = doesn't come back at all.) But it just makes no sense at all to me.

    I simply want to check if the field value is less than 15. if it is, i want it to return my error message. but like I said, for the life of me, it's absolute. It wither ALWAYS returns an error, or it NEVER does.

    Can anyone see what I'm doing wrong here?

    Posted 7 years ago on Monday August 20, 2012 | Permalink
  2. David Peralty
    Administrator

    Hi, is there any reason why using the following hook wouldn't work?
    http://www.gravityhelp.com/documentation/page/Gform_field_validation

    <?php
    add_filter("gform_field_validation_175_1", "custom_validation", 10, 4);
    function custom_validation($result, $value, $form, $field){
    
        if($result["is_valid"] && intval($value) < 15){
            $result["is_valid"] = false;
            $result["message"] = "A minimum of 15 tickets is required for group pricing.";
        }
        return $result;
    }
    ?>
    Posted 7 years ago on Tuesday August 21, 2012 | Permalink
  3. Thanks David :)

    I just tried your code above, and I'm having the same issue - it's either ALWAYS false, or ALWAYS true depending on which way I put the carat (less than or greater than).

    I'm still messing with the code, but I'm just not seeing why it's not seemingly recognizing the "<" value. That *seems* to be where the issue lies - in that area somewhere.

    I swear, if I could figure out how to *see* the values returned by $_POST, it would help a lot, but I simply can't get this filter to return the $_POST values to see what, exactly, is being passed (which is usually how I troubleshoot stuff).

    BTW, here's the code I'm using:

    add_filter("gform_field_validation_1_16", "custom_validation", 10, 4); // field 16, form 1
    function custom_validation($result, $value, $form, $field){
        	if($result["is_valid"] && intval($value) < 15){
            	$result["is_valid"] = false;
            	$result["message"] = "A minimum of 15 tickets is required for group pricing.";
        	}
        return $result;
    }

    pretty much exactly what you wrote. I just don't get why it's not doing what it *should* be doing.

    EDIT: Okay - I think it has to do with the Paypal add-on. (This field is a Paypal pricing field.) When I put in a regular text field and run this function, it works perfectly fine. But the one I want to use it on is a Paypal quantity field. Guess I have more digging to do.

    Posted 7 years ago on Tuesday August 21, 2012 | Permalink
  4. Heh. Docs to the rescue again - I'm not looking for "gform_field_validation", I'm looking for "gform_paypal_config_validation". Looking for the exact code I need to use, but I think I'm starting on the right path here.

    Posted 7 years ago on Tuesday August 21, 2012 | Permalink
  5. David Peralty
    Administrator

    Yeah the issue you are experiencing is that the value of money is a string. You would have to convert it to a number and remove the currency symbol and whatnot to do a direct comparison using a greater than or less than operator. I think you can echo a variable and immediately afterwards put exit; and be able to see what is going on.

    Posted 7 years ago on Tuesday August 21, 2012 | Permalink
  6. Well, I found a better workaround XD My idiocy is exposed!

    Instead of trying to add a filter to the "product" pricing field, I simply disabled the "quantity" field in the pricing field option, then added a "quantity" field that goes along with the "product". So 2 fields instead of 1, and I can set a minimum quantity on the "quantity" field.

    Well THAT was a whole lot easier than the past 24 hours ;)

    Thanks anyway! (Maybe that can be a future feature request: to have the ability to set a min/max value on the "product" field when the quantity is displayed, instead of breaking it up into 2 fields?)

    Posted 7 years ago on Tuesday August 21, 2012 | Permalink
  7. David Peralty
    Administrator

    Glad you were able to find a solution. Let us know if anything else comes up. Sometimes, the best thing you can do is take a break from looking at code and tackle it again after a short break. It happens to me all the time when I get too close to a project.

    Posted 7 years ago on Tuesday August 21, 2012 | Permalink

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