If condition is true it should show an error message "already exits" or else a message "successful" should be displayed.
Is it possible to add a validation like this to the model part:
$name = $_POST["name"];
$validation_sql = "SELECT COUNT(*) > 0 FROM college WHERE status='2' AND name='$name'";
You can use hasAny() as the solution:
$conditions = array(
'status'=>'2',
'name'=>$name
);
if ($this->XXXXXXX->hasAny($conditions)){
//do something
}
hasAny will return true if found else false.
NOTE: hasAny is not available in version 3.x
You can add server validation in model like:
public $validate = array(
'name' => array(
'rule' => array('isUnique', array('name'), false),
'message' => 'This name has already been used.'
)
);
It is not recommended to use $_POST in CakePHP at all, rather use the Request Object in the controller to access the data given by a POST request:
$this->request->data['College']['name'];
This information can then be passed to the model where it is validated.
If the post request has been created by the CakePHP form helper you don't need to access it - you can directly pass the data to the save method of the model instance (see CakePHP Handbook - Saving your data).
if ($this->College->save($this->request->data)) {
// handle the success (Normally success flash)
}
debug($this->College->validationErrors); //Normally error flash - if FormHelper is used the error messages are automatically shown beside the input elements
The validations can be added with the Bake Console or manually by adding validation rules to the College Model code:
public $validate = array(
'name' => array(
'rule' => 'isUnique',
'message' => 'This username has already been taken.'
)
);
Related
So I have two models, that are Company and User. Here are the relations:
Company:
public $hasMany = array(
'User' => array(
'className' => 'User',
'foreignKey' => 'company_id',
)
User:
public $belongsTo = array(
'Company' => array(
'className' => 'Company',
'foreignKey' => 'company_id',
)
And there is a form were both instances are being created. The problem is that only the Company fields are being validated and User is not. Even though the validation rules for just creating or editting a User work perfect. Here is the form in question:
echo $this->Form->create('Company', array('action'=>'register'));?>
echo $this->Form->input('Company.name', array('label'=>__('Company name*')));
echo $this->Form->input('Company.address', array('label'=>__('Address*')));
echo $this->Form->input('Company.city', array('label'=>__('City*')));
echo $this->Form->input('User.0.name', array('label'=>__('Name*')));
echo $this->Form->input('User.0.email', array('label'=>__('Email*')));
echo $this->Form->input('User.0.email_confirmation', array('label'=>__('Email confirmation')));
echo $this->Form->end(array('label'=>'Save', 'onclick'=>'disableSubmit(this)'));
I am fully aware of the validate only option, but I wonder what is the proper way to make validation work.
Any help or guidance is much appreciated.
As requested, I provide the Model logic as well:
public function registerCompany($data){
unset($this->User->validate['company_id']);
if($this->saveAll($data, array('validate'=>'only'))){
if($this->saveAssociated($data)){
return true;
}
}else{
return false;
}
}
Here are some of the validation rules of User model, there are two different validation types for REST service and for web client, so this is for the web client only. NOTE: it works all good on single user create/edit:
$this->validate = array(
'name'=>array(
'Insert user name'=>array(
'rule'=>'notEmpty',
'message'=>'Insert user name',
'last'=>false
)
)
Use this to validate:
Suppose you are saving the data from "Company Controller".
if( $this->Company->saveAll(array('validate'=>only)){
//your save logic here
} else {
//here form has some validation errors.
debug($this->Company->validationErrors);
}
Try this any reply....
Same you can do with "User"
if( $this->User->saveAll(array('validate'=>only)){
//your save logic here
} else {
//here form has some validation errors.
debug($this->User->validationErrors);
}
And
In form use this for user data:
echo $this->Form->input('User.name', array('label'=>__('Name*')));
saveAll is a wrapper of saveMany and saveAssociated. So you don't have to call both methods.
Then, according to the Cake's doc, to unset a validation you should use the syntax : $this->Model->AssociatedModel->validate...
Should look like this :
public function registerCompany($data){
unset($this->Company->User->validate['company_id']);
if($this->Company->saveAssociated($this->request->data)){
return true;
}else{
return false;
}
}
Question: How can I use the same code in the model validation (in particular for child models) for both SaveAssociated and Save function calls in CakePHP,... given that SaveAssociated implementations expect the form data array to contain a numeric index [0] for data fields belonging to a child model?
Scenario:
Assuming I have a parent model with a hasMany relationship to several child models.
Typically if you use SaveAssociated to save data to all models at once, you would need to specify an index number (typically 0) on the view form input. Example:
echo $this->Form->input('MerchantControl.0.startdate', array('type' => 'text', 'class' => 'datepicker_start'));
As a result, any custom child model validation code will need to be written with [0] as well. See function urlParamNotUsedByOtherMerchants in the code sample below.
public $validate = array(
'urlparam' => array(
'In Use by other Merchants' => array(
'rule' => 'urlParamNotUsedByOtherMerchants',
'message' => 'URLPARAM belongs to another Merchant'
)
)
);
public function urlParamNotUsedByOtherMerchants($data) {
$searchfilter = array(
//Because of SaveAssociated, need to refer to index [0]
'MerchantControl.id !=' => $this->data['MerchantControl'][0]['merchant_id'],
'MerchantControl.urlparam ' => $data,
);
$merchantcontrol = $this->find('all', array('conditions' => $searchfilter));
if (sizeof($merchantcontrol) > 0) {
return false;
} else {
return true;
}
}
The problem is there are many other instances where I will also be using a "Save" and not a "SaveAssociated" in maintainence views where i directly update or create the child model only. In this case, this model validation code is going to fail with an error saying index "[0]" not defined or something similar.
How can I use the same code in the model validation (in particular for child models) for both SaveAssociated and Save function calls in CakePHP?
If I understand you correctly you want to check whether the urlparam is already used by another merchant or in other words whether it is unique.
Why don't you use the built-in validation rule isUnique?
Example:
public $validate = array(
'urlparam' => array(
'In Use by other Merchants' => array(
'rule' => 'isUnique',
'message' => 'URLPARAM belongs to another Merchant'
)
)
);
I’ve created a simple model behavior in my CakePHP application to handle file uploads. In its beforeValidate() method I have the following:
public function beforeValidate(Model $Model, $options = array()) {
$maxFileSize = '1MB';
$Model->validator()->add($this->settings[$Model->alias]['field'], array(
'extension' => array(
'rule' => array('extension', $this->settings[$Model->alias]['allowedExtensions']),
'message' => __('Please supply a valid image'),
'allowEmpty' => ($this->settings[$Model->alias]['required'] === false)
),
'fileSize' => array(
'rule' => array('fileSize', '<=', $maxFileSize),
'message' => __('Image must be less than %s', $maxFileSize)
),
'uploadError' => array(
'rule' => 'uploadError',
'message' => __('Something went wrong with the upload')
)
));
return true;
}
I’m dynamically adding file field-related validation. The first rule is checking the extension is in an allowed array of extensions passed in the behavior settings, and I’ve an allowEmpty key that equates to true because a file upload is not mandatory in this case.
This behavior is attached to an Event class. When editing an event, the extension validation rule kicks in, even though I’ve specified allowEmpty as true. Why is this?
Is it because the data passed in the file field is an array and actually equates to non-empty, therefore the validation is kicking in? If so, how can I combat this? I only want validation to kick in if a file has actually been uploaded.
Is it because the data passed in the file field is an array and actually equates to non-empty, therefore the validation is kicking in?
Yes. If no file is uploaded the array key for the model field will still be present, with a none-empty value. I.e. something like:
//$request->data
array(
'Model' => array(
'field' => array(
...
'size' => 0,
'error' => 4
)
)
);
Coping with optional file uploads
To prevent problems validating a field which is a file upload - a simple option is to check for UPLOAD_ERR_NO_FILE and wipe the relevant model data. In a beforeValidate callback that could look like this:
$field = $this->settings[$Model->alias]['field'];
if (
isset($Model->data[$Model->alias][$field]['error']) &&
$Model->data[$Model->alias][$field]['error'] === UPLOAD_ERR_NO_FILE
) {
unset($Model->data[$Model->alias][$field]);
}
Alternatively add a bail-early chunk of code to all validation rules:
function validateExt($Model, ...) {
$field = $this->settings[$Model->alias]['field'];
if ($Model->data[$Model->alias][$field]['error'] === UPLOAD_ERR_NO_FILE) {
return true;
}
...
}
Such that even if called with an empty file upload the validation rules do not return false negatives. Incidentally, validation rule-order matters, it would make more sense to check for an upload error - before validating the contents of the upload =).
Short version
I have some HABTM checkboxes on a form. Validation is working correctly (at least one checkbox needs to be checked for validation to pass) but the CakePHP error message divs aren't being generated as they should be.
Long Version
I have a from which allows users to fill in their name and email address and then choose from a list of brochures (checkboxes) they'd like to receive.
The form looks like this:
<?php
echo $this->Form->create('Request',array('action' => 'index'));
echo $this->Form->input('id');
echo $this->Form->input('name');
echo $this->Form->input('email');
echo $this->Form->input('Brochure',array(
'label' => __('Information Required:',true),
'type' => 'select',
'multiple' => 'checkbox',
'options' => $list,
'selected' => $this->Html->value('Brochure.Brochure'),
));
echo $this->Form->submit('Submit');
echo $this->Form->end();
?>
In my controller, $list is set as like this:
$this->Request->Brochure->find('list',array('fields'=>array('id','name')));
After reading the 2nd answer (posted by user448164) in HABTM form validation in CakePHP on Stack Overflow, I set my Request model up like this:
<?php
class Request extends AppModel {
var $name = 'Request';
function beforeValidate() {
foreach($this->hasAndBelongsToMany as $k=>$v) {
if(isset($this->data[$k][$k]))
{
$this->data[$this->alias][$k] = $this->data[$k][$k];
}
}
}
var $validate = array(
'name' => array(
'rule' => 'notEmpty',
'message' => 'Please enter your full name'
),
'email' => array(
'rule' => 'email',
'message' => 'Please enter a valid email address'
),
'Brochure' => array(
'rule' => array('multiple', array('min' => 1)),
'message' => 'Please select 1'
),
);
?>
This actually works 99% well. If none of the checkboxes are checked, validation fails as it should do. However, the only problem is that Cake isn't setting the "error" class on the <div>, nor is it creating the <div class="error-message">Please select 1</div> as it should.
For name and email, there is no problem - the error divs are being created properly.
So, to clarify, validation is working for my HABTM checkboxes. The only problem is that the error divs aren't being generated.
I'm posting this here as this is actually a much better question than the related question you found.
I was banging my head against a wall trying to handle the same problem of getting the validation error to show up in the page. I'm using CakePHP v1.2 and I hit a similar problem although I have actually split out the HABTM into the individual tables i.e. Request->BrochuesRequest->Brochure. This is because I can't have it deleting and re-adding the joining table rows at will.
Firstly I think the accepted answer from your linked question assumes that you are doing a save / saveAll when the beforeValidate call is triggered, however I was doing it through a validates call. The difference is that you need to call the Request->set method first. It was an article by Jonathan Snook on Multiple Validation Sets pointed me to that issue.
The second issue is actually getting the error message to appear was down to the $field value you use when calling invalidate. For ages I was including the model as well as the field assuming that this was how it matched the invalidate call to the input, i.e. you have $form->input('BrochuresRequest.brochures_id') so you need $this->BrochuresRequest->invalidate('BrochuresRequest.brochures_id').
However that is wrong you just want $this->BrochuresRequest->invalidate('brochures_id').
<?php
// requests/add view
echo $form->input('BrochuresRequest.brochures_id', array('multiple' => true));
// requests_controller
function add() {
if (!empty($this->data)) {
$this->Request->create();
// critical set to have $this->data
// for beforeValidate when calling validates
$this->Request->set($this->data);
if ($this->Request->validates()) {
$this->Request->saveAll($this->data);
}
}
}
// request model
function beforeValidate() {
if (count($this->data['BrochuresRequest']['brochures_id']) < 1) {
$this->invalidate('non_existent_field'); // fake validation error on Project
// must be brochures_id and not BrochuresRequest.brochures_id
$this->BrochuresRequest->invalidate('brochures_id', 'Please select 1');
return false;
}
return true;
}
?>
A few of the other things that I picked up on the way through:
You don't need a separate $form->error in the view
I couldn't for the life of me get the 'multiple' validation rule to work in the model
The accepted answer checks for an isset but I believe that this isn't required and masked the problem of there being no $this->data being passed through.
The beforeValidate should return false if you want it to prevent any save action.
I'm working with CakePHP and trying to understand the best ways to make my application consistent and logical.
Now I'm trying to working with Model data validation and handling validation errors in the view, I have a doubt on how should I do if I like to insert some link inside the returned error, for example for a forgotten password.
Is it good to use (if it's possibile) HtmlHelper inside the Model to return consistent links inside my application, or should I think about another way?
<?php
App::import('Helper', 'Html');
class User extends AppModel {
var $name = 'User';
var $validate = array (
'email' => array (
'checkEmail' => array (
'rule' => array('email', true),
'message' => 'Email not valid message.'
),
'checkUnique' => array (
'rule' => 'isUnique',
'message' => 'This email is allready in the db, if you forgot the password, '.(string)$this->Html->link('click here', array('controller' => 'users', 'action' => 'password-recover')).'.'
)
)
// the rest of the code...
This doesn't work because it seems I can't chain the message string with HTML string.
Does exist e smartest way to do that, or should I simply insert the html string without the HtmlHelper?
If you really want HTML in your validation messages CakePHP provides a way to do this, no breaking Cake, no writing a lot of code.
In your $validation just use whatever HTML you would like to have presented to the user.
In your view when you create your FormHelper::input($fieldName, array $options) pass the following array to $options:
$options = array('error' => array(
'attributes' => array('escape' => false)
))
See this page to learn more about the $options['error'] ...options.
Alternatively, if you want all inputs with no HTML escaping you can pass $options['inputDefaults'] when you create the form.
this is a difficult topic because
you might need to break MVC
validation is as in your case usually in $validate and cannot contain dynamic stuff
for 1)
you can also use Router::url() with manual HTML
you can use BBcode or pseudo-markup and translate this into real links in the view/element of the flashmessage
for 2)
use __construct() and $this->validate to use dynamic elements if needed
In PHP, properties of a class (such as $validate) have to be initialized with constant values.
<?php
class User extends AppModel {
public $validate = array(
'email' => array(
'checkUnique' => array(
'rule' => array('isUnique'),
'message' => 'This email address has already been claimed, possibly by you. If this is your email address, use the reset password facility to regain access to your account'
),
),
);
public function beforeValidate($options = array()) {
$this->validate['email']['checkUnique']['message'] = String::insert(
$this->validate['email']['checkUnique']['message'],
array('link' => Router::url(array('action' => 'password-recover')))
);
return true;
}
You are making it hard on yourself. The helpers are not accessible in the model and controller. And for good reason: the M and C shouldn't be concerned with the V.
There are ways to do exactly as you want (but involves considerably more code). Since you ask for the smartest way: What's wrong with just echo the reset password link in the view, after the login form? Just echo 'Forgot your password? '.$this->Html->link('Click here', array('controller' => 'users', 'action' => 'password-recover'));
I don't agree on breaking the MVC logic. I also tried all the array('escape' => false) possible ways (in Form->input, in Form->error and even in the model) and none of them worked with me! (cakephp 2.0)
"Anh Pham" answer is the easiest and simplest way. In addition to that, I returned empty error message from model validation ('errorMessage' => false ; doesn't work in cakePhp 2.0).
Because I wanted to pass a variable to the view to build the link there (MVC), in the controller I check if the field is invalidated:
$invlaidFields = array_keys($this->Model->validationErrors();
if ( in_array('myField', $invalidFields) ){
...
}
In the view, I check if the field was invalidated, I then echo my error message giving it class error-message so it looks the same as the rest error messages.
if ($this->Form->('myFields')) { ... echo '<span class="error-message">error message'. $this->Html->link(...).'</span>'; }
Hope it helps somebody out there.
P.S. It's always a good practice to mention what cakePHP version you are using...
To cakephp2 you can use the following:
//model validation
'company' => array('notempty' => array('rule' => array('notempty'),'message' => "select one company o send email to contact",),)
//front
<?php if ($this->Form->isFieldError('Register.company')): ?>
<span class="text-danger"><?php echo $this->Form->error('Register.company', null, array('escape'=>false)); ?></span>
<?php endif; ?>