How to show validation message patchEntity - validation

Question

I am using CakePHP3, I created de Config model with this table :
+----------------------+---------------------------+
| param | value |
+----------------------+---------------------------+
| dhcp_dns1 | 192.168.1.100 |
| dhcp_dns2 | 192.168.1.100 |
| dhcp_enabled | 1 |
| dhcp_end_ip | 192.168.1.200 |
| dhcp_netmask | 255.255.255.0 |
| dhcp_router | 192.168.1.100 |
| dhcp_start_ip | 192.168.1.100 |
| host_name | box |
I am using a pairs of param/value. param will not be alterable but only value will be alterable.
I have different kind of value (ip address, text, numeric) that I need to validate before change.
So the controller use multi-step save data, to validate different kind of values.
I created a Form (for test) to update host_name (alphaNumeric Validation) and dhcp_start_ip (ipv4 Validation).
For validation I used this :
http://book.cakephp.org/3.0/en/orm/validation.html#using-a-different-validation-set
Validation works fine but it not display message if validation not match. How I can show message to say Hostname or IP address is wrong format when patchEntity ?
Maybe I am in the wrong way to do it...
This is the view :
<div class="config form large-10 medium-9 columns">
<fieldset>
<legend><?= __('DHCP Config')?></legend>
<?= $this->Form->create('config') ?>
<?php
//$params = array('host_name', 'host_ip', 'host_netmask', 'host_gateway', 'host_dns1', 'host_dns2');
echo $this->Form->input('host_name',[
'label' => __('Hostname : '),
'default' => $host_name->value
]);
echo $this->Form->input('dhcp_start_ip',[
'label' => __('DHCP Pool start : '),
'default' => $dhcp_start_ip->value
]);
?>
</fieldset>
<?= $this->Form->button(__('Submit')) ?>
<?= $this->Form->end() ?>
</div>
Controller :
public function test()
{
$host_name = $this->Config->get('host_name', ['contain' => []]);
$dhcp_start_ip = $this->Config->get('dhcp_start_ip', ['contain' => []]);
if ($this->request->is(['patch', 'post', 'put'])) {
$confdata = array(
'param' => 'dhcp_start_ip',
'value' => $this->request->data['dhcp_start_ip']
);
$host_name_data = array(
'param' => 'host_name',
'value' => $this->request->data['host_name']
);
// 1ere methode de validation
$dataconfig = $this->Config->patchEntity($dhcp_start_ip, $confdata, [
'validate' => 'ipaddr',
]);
$this->Config->save($dataconfig);
$dataconfig = $this->Config->patchEntity($host_name, $host_name_data, [
'validate' => 'name',
]);
$this->Config->save($dataconfig);
}
$this->set('dhcp_start_ip', $dhcp_start_ip);
$this->set('host_name', $host_name);
}
Model :
public function validationIpaddr(Validator $validator)
{
$validator->notEmpty('value')
->add('value', 'notEmpty', [
'rule' => ['ip', 'ipv4'],
'message' => __('Invalid IP Address')
]);
return $validator;
}
public function validationName(Validator $validator)
{
$validator
->add('value', 'notEmpty', [
'rule' => ['alphaNumeric'],
'message' => __('Invalid Name')
]);
return $validator;
}

Answer 1

Try this, In your controller
$dataconfig = $this->Config->patchEntity($dhcp_start_ip, $confdata, [
'validate' => 'ipaddr',
]);
if (!$dataconfig->errors()) {
$this->Config->save($dataconfig);
}else{
debug($dataconfig->errors());
$this->Flash->error('Invalid IP Address!');
}