Right now I have a form that adds an instance of Dog to an Owner. I want to make it so that if the Dog already has an owner, a confirmation dialogue pops up. I can get the confirmation to pop up everytime the button is pressed, but am not quite sure how to add the conditional to it.
My code is as follows:
<div class="row-fluid">
<?php echo $this->form()->openTag($form); ?>
<div class="form-group ">
<?php echo ctrlGroup($this, AddDogForm::KEY_DOG_ID, !($this->uberAdmin)); ?>
<?php $addDog = $this->form->get(AddDogForm::KEY_ADD_BTN); ?>
<?php $addDog->setAttribute("class", "btn btn-info"); ?>
<?php $addDog->setAttribute('onclick', 'if (confirm("Are you sure?")) { document.form.submit(); } return false;'); ?>
<?php echo $this->formSubmit($addDog); ?>
</div>
<?php echo $this->form()->closeTag(); ?>
This will bring a popup up every time that the button is clicked, but I want it to check what's been typed before putting up the popup.
The following is my AddDogForm:
class AddDogForm extends Form{
const KEY_PROJECT_ID = "project_id";
const KEY_ADD_BTN = "project_add_btn";
public function __construct($name = null, $options = array()){
parent::__construct($name);
$this->setAttribute('method', 'post');
$this->setAttribute('class', 'form-inline');
$id = new Text(self::KEY_DOG_ID);
$id->setAttribute("id", self::KEY_DOG_ID);
$id->setLabel("dogid to add");
$this->add($id);
$add = new Button(self::KEY_ADD_BTN);
$add->setAttributes(array("id", self::KEY_ADD_BTN));
$add->setLabel("Add Dog");
$add->setValue("Add Dog");
$this->add($add);
}
}
UPDATE: I can add a custom validator by adding this to the AddDogForm:
public function hasNoOwner($dogId) {
$drm = DogResourceModel::create();
$dogs = $drm->find($dogId);
$dog = array_values($dogs)[0];
if($dog->getOwnerId()){
return false;
} else {
return true;
}
}
public function getInputFilterSpecification() {
$hasOwnerValidator = array(
'required' => true,
'validators' => array(
new Callback(
array(
$this,
'hasNoOwner'
)),
),
);
return array(
self::KEY_PROJECT_ID => $hasOwnerValidator
);
}
This will prevent the user from being able to input. Can I instead alter this so that it asks for confirmation rather than preventing the POST from happening?
May be you can add custom validator on post data on one of the field to validate against and then you can just show a general message.
There are two possible way you can achieve this.
add validator/custom validator based on your requirement on runtime in controller
public function fooAction() {
$form = new Dog_Form();
if ($this->getRequest()->isPost()) {
// all post data is valid now we validate for dog/owner thing
$form->getElement('star_tag')->addValidator('Db_NoRecordExists',false,
[
'table' => 'table name',
'field' => 'field to check duplicate',
'messages' => array('recordFound' => 'already_linked')
]
);
// redirect after successful insert
}
$this->view->form = $form;
}
you can use isValidPartial method of zend form and do your validation over there. check http://framework.zend.com/manual/1.12/en/zend.form.quickstart.html#zend.form.quickstart.validate to see how it works.
Transmit variable hasOwner to view and add onclick if hasOwner is not empty.
<?php if (!empty($hasOwner)) $addDog->setAttribute('onclick', 'if (confirm("Are you sure?")) { document.form.submit(); } return false;'); ?>
If dog is selected in form, you can make ajax request to check for owner. Remove onclick attribute and add js code to check.
<script src="//code.jquery.com/jquery-1.12.0.min.js"></script>
<script>
$('form').submit(function() {
var hasOwner = 0;
$.ajax('/url/to/check', {
'async':false,
'data':{'dog':$('#<?php echo AddDogForm::KEY_DOG_ID; ?>').val()},
'dataType': 'json',
'success':function(data){
hasOwner = data['hasOwner'];
}
})
if (hasOwner) {
if (confirm("Are you sure?")) return true;
else return false;
} else {
return true;
}
});
</script>
/url/to/check should return json response if dog has owner
<?php
....
$hasOwner = hasOwner($_REQUEST['dog']); // function
echo \json_encode(['hasOwner'=>$hasOwner]);
exit;
....
?>