Unchecked checkbox is not present in GET or POST data.
How to handle it?
Is there need to do it manually or there is another reason why symfony $form->getData() does not handle it automatically?
Symfony by default parse your checkboxes to an array so if you have a checked one you will have it in your form->getData() else you will not have it, so in your controller if you don't get your checkbox in form data that's mean that the checkbox is unchecked
As explained above
I had the same issue, to be honest I dont understand why there is no option value for unchecked checkboxtype like 'unchecked_value' => false
I had to manually go over submitted fields, check if field has not been submitted then I know it is missing in form submit and that means it equal to false.
this is in my class to be run before persisting...it will basically loop over properties and set its values to false
public function setUncheckedReplacementFields(array $data)
{
foreach($this as $property => $value){
if(str_contains('Replacement', $property) !== false){
if(!in_array($property, $data)){
$method = sprintf('set%s', ucfirst($property));
if(method_exists(this, $method)){
$this->$method(false);
}
}
}
}
}
before I am persisting form I run this
$object->setUncheckedReplacementFields($request->request->get($form->getName()));
so if field is not part of form I know it has been unchecked and I loop over object to find those checkboxes and setting them to false in my case unchecked.
Related
I have a "Thing" domain class, where each Thing has an record number (which is not the automatically generated id), that the user will use to access a Thing:
class Thing {
...
String recordNumber
...
}
There is a form to look for a Thing, knowing its recordNumber:
<g:form action="search">
<input name="recordNumber">
<g:submitButton name="btn" value="go to this Thing"/>
</g:form>
I would like to use a validation process in this form: if the recordNumber is not found (Thing.findByRecordNumber(recordNumber) == null), then the input field must turn in red, and a tooltip must show the error message "record number not found".
As far as I know/read (I'm a grails rookie), this has to be written as a constraint in the Thing class:
static constraints = {
recordNumber validator: { n -> Thing.findByRecordNumber(recordNumber) }
}
The problem is: I do not have in this form all the "Thing" properties to populate, just the recordNumber one, so I just can't call
new Thing(params).validate()
How to call validation on just one field, not on the whole object ?
If this is your main question, although I see others there:
"How to call validation on just one field, not on the whole object ?"
You can pass a list of values to validate and it will only validate those properties
new Thing(params).validate(["recordNumber"])
http://grails.org/doc/latest/ref/Domain%20Classes/validate.html
Validation is for constraints for domain class properties. You need an action in your controller:
def search = {
if(params.recordNumber && Thing.findByRecordNumber(params.recordNumber)){
redirect(action: "show", params:[id:Thing.findByRecordNumber(params.recordNumber).id])
}else{
flush.message = "No record found"
render(view:'VIEW_WITH_SEARCH_FORM')
}
}
If you want to validate without refreshing page, write a javascript code.
I implemented a page to create an instance of an entity and a user related to this. My problem is to bind the request after the submit.
Now i have this :
$formA = $this->createForm(new \MyApp\ABundle\Form\AddObjectForm());
$formB = $this->createForm(new \MyApp\UserBundle\Form\AddUserForm());
if ($request->getMethod() == 'POST')
{
$formA->bindRequest($request);
$formB->bindRequest($request);
if ($formA->isValid() && $formB->isValid())
{
}
// ...
}
With formA and formB extends AbstractType. But, naturally, $formA->isValid() returns false. How can I do to "cut" the request for example ?
If your forms are related and need to be processed and validated at once, consider using embedded forms. Otherwise, use a separate action for each form.
If you need to provide a select field to choose a user from existing ones, consider using an entity type field.
I know that has been a long time since the answer, but maybe if someone is looking for it this could be helpfull.
I've got two forms: user_form and company_form, and the submit has take place in the same function of the controller. I can know wich form has been submit with the follow code:
if ($request->getMethod() == 'POST') {
$data = $request->request->all();
if (isset($data['user_form'])) //This if means that the user_form has been submit.
{
The company_form will pass through the else.
I have a Zend Form with a MutliCheckbox element.
I would like to validate the number of checked items, i.e. verify that exactly 3 items are checked.
Can I do it with any current validates or do I have to write my own?
Thanks.
You will have to write your own, but that's quite simple. There is a second optional argument on the isValid() method that gives you access to all the form values, and enables this way to validate against multiple inputs.
class MyValidator extends Zend_Validate_Abstract {
public function isValid($value, $formData = null){
//you can access to all the form values in the $formData, and check/count
//the values of your multicheckbox
//this is the super-quick way, but you could also add error messages
return $isValid;
}
}
and then add it to your element
$myElement->addValidator( new MyValidator());
I have 2 text fields in my form.
TextFieldA - not required
TextFieldB - not required
After user submitted the form,
How to add validator / setRequired(true) to TextFieldB if the value of TextFielA is not empty?
I see two approaches in addition to #Marcin's idea.
Conditionally call setRequired() on the relevant elements by creating a preValidate() method on the form and calling it in your controller. [Really the same idea as #Marcin, but pushed down into the form itself, keeping the controller a bit leaner.]
Create a custom validator called something like ConditionallyRequired that accepts as an option the fieldname of the "other field". Then attach this validator to each element, configuring it with the name of the "other" element. Then in the validator's isValid($value, $context) method, conditionally test $value if $context['otherfield'] is non-empty.
You could do as follows:
if ($this->getRequest()->isPost()) {
$textFieldA = $yourForm->getElement('TextFieldA');
$textFieldB = $yourForm->getElement('TextFieldB');
if (!empty($_POST['TextFieldA'])) {
$textFieldB->setRequired(true);
}
if (!empty($_POST['TextFieldB'])) {
$textFieldA->setRequired(true);
}
if ($mainForm->isValid($_POST)) {
// process the form
}
}
Basically, you add the validators after the post, but before the form is validated.
Hope this helps.
I am trying to populate the values into check box. I want check box to be checked when there is value stored in database.
This is my code in form:
$form ['test_1'] = new Zend_Form_Element_Checkbox('test_1');
$form['test_1']->setLabel('test1')->setCheckedValue('1');
$form ['test_2'] = new Zend_Form_Element_Checkbox('test_2');
$form['test_2']->setLabel('test2')->setCheckedValue('2');
If there is value 1 in database i want first check box to be checked and if its 2 then 2nd checkbox needs to be checked.
What do i need to do in the controller.
Could anyone please help me on this issue.
The easiest way would be to fetch the values from the database as an array that maps to the form input elements, e.g. return a row like
array('test_1' => 'value of checkbox', 'test_2' => 'value of checkbox');
You could then simply call $form->populate($values) and let do Zend_Form do the setting, e.g. in your controller do
public function showFormAction()
{
$form = $this->getHelper('forms')->get('MyForm');
$data = $this->getHelper('dbGateway')->get('SomeTable');
$form->populate($data->getFormData());
$this->view->form = $form;
}
Note: the helpers above do not exist. They are just to illustrate how you could approach this. Keep in mind that you want thin controllers and fat models, so you should not create the form inside the controller, nor put any queries in there.