Question

I’m not sure how to get external error messages to show.

Field

<?php echo Form::input('membername', $username, array('id' => 'username')); ?><?php echo Arr::get($errors, 'membername');?>

Controller

try 
{       
    $extra_rules = Validation::factory($this->request->post())
        ->rule('membername', 'not_empty');

    $username->update($extra_rules);
}
catch (ORM_Validation_Exception $ex) 
{
    $errors = $ex->errors('models/user');
}

/models/user/_external.php

return array(
    'membername' => array(
        'not_empty' => 'You must provide a member name.',
    ),
);

When the field is empty no error messages appear.

Answer 1

I guess Kohana can’t find the correct message, and therefore shows nothing.

If membername is a member of your model user, the error message should be defined in /models/user.php instead of /models/user/_external.php.

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Edit:
If membername is not a member of the model, the error should be available via : <?php echo Arr::path($errors, '_external.membername'); ?>