Say I create a text element like this:
$firstName = new Zend_Form_Element_Text('firstName');
$firstName->setRequired(true);
Whats the best way to change the default error message from:
Value is empty, but a non-empty value
is required
to a custom message? I read somewhere that to replace the message, just use addValidator(..., instead (NO setRequired), like this:
$firstName = new Zend_Form_Element_Text('firstName');
$firstName->addValidator('NotEmpty', false, array('messages'=>'Cannot be empty'));
but in my testing, this doesn't work - it doesn't validate at all - it will pass with an empty text field. Using both (addValidator('NotEmp.. + setRequired(true)) at the same time doesn't work either - it double validates, giving two error messages.
Any ideas?
Thanks!
An easier way to set this "site-wide" would be to possibly do the following in a bootstrap or maybe a base zend_controller:
<?php
$translateValidators = array(
Zend_Validate_NotEmpty::IS_EMPTY => 'Value must be entered',
Zend_Validate_Regex::NOT_MATCH => 'Invalid value entered',
Zend_Validate_StringLength::TOO_SHORT => 'Value cannot be less than %min% characters',
Zend_Validate_StringLength::TOO_LONG => 'Value cannot be longer than %max% characters',
Zend_Validate_EmailAddress::INVALID => 'Invalid e-mail address'
);
$translator = new Zend_Translate('array', $translateValidators);
Zend_Validate_Abstract::setDefaultTranslator($translator);
?>
Give this a shot:
$firstName = new Zend_Form_Element_Text('firstName');
$firstName->setLabel('First Name')
->setRequired(true)
->addValidator('NotEmpty', true)
->addErrorMessage('Value is empty, but a non-empty value is required.');
The key is that "true" on the validator if you set that to true, it'll kill the other validations after it. If you add more than one validation method, but set that to false, it will validate all methods.
Zend_Form sets the required validation error as 'isEmpty', so you can override its message using setErrorMessages(). For example:
//Your Required Element
$element->setRequired(true)->setErrorMessages(array(
'isEmpty'=>'Please fill this field'
));
It worked for me, using ZF 1.11
Try
->addValidator('Digits', false);
or
->addValidator('Digits');
You assume that to check Digits it has to have a string length anyway.
Also, I like to do some custom error messages like this:
$firstName->getValidator('NotEmpty')->setMessage('Please enter your first name');
This allows you to "get" the validator and then "set" properties of it.
Try the following.
$subjectElement->setRequired(true)->addErrorMessage('Please enter a subject for your message');
This worked form me.
But try this:
$firstName->setRequired(true)
->addValidator('NotEmpty', false, array('messages' => 'bar'))
->addValidator('Alpha', false, array('messages'=>'Must contain only letters'));
If left empty and submitted, itll give two messages bar & '' is an empty string. Its that second message thats coming from setRequired(true) thats the problem
if you put:
$element->setRequired(false);
the validations don't work at all, you have to define:
$element->setAllowEmpty(false);
in order to get the correct behavior of the validations.
Try this..
$ausPostcode = new Zend_Form_Element_Text('aus_postcode'); $ausPostcode->setLabel('Australian Postcode')
->setRequired(true)
->addValidator('StringLength', false, array(4, 4))
->addValidator(new Zend_Validate_Digits(), false)
->getValidator('digits')->setMessage('Postcode can only contain digits');
This sets the custom error message only for the Digits validator.
One small issue. This code:
$zipCode->setLabel('Postal Code')
->addValidator('StringLength', true, array( 5, 5 ) )
->addErrorMessage('More than 5')
->addValidator('Digits', true)
->addErrorMessage('Not a digit');
Will generate both error messages if either validation fails. Isn't is supposed to stop after the first fails?
use a zend translator with zend_validate.php from
ZendFramework-1.11.3\resources\languages\en\Zend_Validate.php and then modify this file how you need
and then modify it accordingly to your needs
Related
I'm using Laravel for a project and want to know how to validate a particular scenario I'm facing. I would like to do this with the native features of Laravel if this is possible?
I have a form which has two questions (as dropdowns), for which both the answer can either be yes or no, however it should throw a validation error if both of the dropdowns equal to no, but they can both be yes.
I've check the laravel documentation, but was unsure what rule to apply here, if there is one at all that can be used? Would I need to write my own rule in this case?
very simple:
let's say both the fields names are foo and bar respectively.
then:
// Validate for those fields like $rules = ['foo'=>'required', 'bar'=>'required'] etc
// if validation passes, add this (i.e. inside if($validator->passes()))
if($_POST['foo'] == 'no' && $_POST['bar'] == 'no')
{
$messages = new Illuminate\Support\MessageBag;
$messages->add('customError', 'both fields can not be no');
return Redirect::route('route.name')->withErrors($validator);
}
the error messge will appear while retrieving.
if you get confuse, just dump the $error var and check how to retrieve it. even if validation passes but it gets failed in the above code, it won't be any difference than what would have happened if indeed validation failed.
Obviously don't know what your form fields are called, but this should work.
This is using the sometimes() method to add a conditional query, where the field value should not be no if the corresponding field equals no.
$data = array(
'field1' => 'no',
'field2' => 'no'
);
$validator = Validator::make($data, array());
$validator->sometimes('field1', 'not_in:no', function($input) {
return $input->field2 == 'no';
});
$validator->sometimes('field2', 'not_in:no', function($input) {
return $input->field1 == 'no';
});
if ($validator->fails()) {
// will fail in this instance
// changing one of the values in the $data array to yes (or anything else, obvs) will result in a pass
}
Just to note, this will only work in Laravel 4.2+
I'd like to have input validated with form_validation class, that'll allow me to put numeric or empty value in the field.
Something like this:
$this->form_validation->set_rules('field[]','The field','numeric or empty|xss_clean');
Is this possible to achieve?
$this->form_validation->set_rules('field[]', 'The field', 'numeric|xss_clean');
This should be sufficient in theory, since the field hasn't been set to required.
But, it returns me the errors
Then perhaps an extra step:
if (!empty($this->input->post('field[]')))
{
$this->form_validation->set_rules('field[]', 'The field', 'numeric|xss_clean');
}
For phone number with 10 digits:
$this->form_validation->set_rules('mobile', 'Mobile Number ', 'required|regex_match[/^[0-9]{10}$/]'); //{10} for 10 digits number
I think you mean "Using Arrays as Field Names"
You can have a look at this page
$this->form_validation->set_rules('field[]','The field','is_natural|trim|xss_clean');
if ($this->form_validation->run() == FALSE) {
$errors = $this->form_validation->error_array();
if (!empty($errors['field'])) {
$errors_data = $errors['field'];
}
print_r($errors_data);exit;
}
You can use is_natural that Returns FALSE if the form element contains anything other than a natural number: 0, 1, 2, 3, etc.
For empty checking required rule is used that Returns FALSE if the form element is empty. So remove the required rule is if used.
And use form_validation rules for showing your rules message
In a form, I have the following element:
$email = new Zend_Form_Element_Text('username');
$email
->setLabel($this->getView()->l('E-mail'))
->setRequired(TRUE)
->addValidator('EmailAddress')
->addValidator('Db_NoRecordExists', true,
array(
'table' => 'pf_user',
'field' => 'email',
'messages' => array(
'recordFound' => 'This username is already registered',
)
))
->setErrorMessages(array(
'emailAddressInvalidFormat' => 'You must enter a valid e-mail',
'isEmpty' => 'You must enter an e-mail',
'recordFound' => 'This e-mail has already registered in out database'
));
$form->addElement($email)
the problem is that I always I get the same message "You must enter a valid e-mail" (the first one). Does anybody knows what is the mistake??
Actually, what you're doing is the following :
You set the errors on the element
Zend now thinks that the element did not validate correctly and that the first error is
"You must enter a valid e-mail"
When you display the form, since you set errors, Zend will find them and display the first one it finds. If you switch the order then you'll find that whichever error you put up top will be the error you get.
The more correct way is to set the custom messages in the validator. When the validators are called to validate the element, if the validation fails, the validator will call the setErrorMessages on the element to set the custom errors you specify. Use this type of code below to set your custom messages.
$element->addValidator( array( 'Db_NoRecordExists', true, array(
'messages' = array(
Zend_Validate_Db_Abstract::ERROR_NO_RECORD_FOUND => 'Myy custom no error record',
Zend_Validate_Db_Abstract::ERROR_RECORD_FOUND => 'My custom record error'
)
) ) );
You'll find that usually there are consts in each validator class that specify one type of error. In this case, the consts are in the parent class of the DB_NoRecordExists class but usually you'll find them directly in the class near the top.
Basically by passing 'true' as second parameter to addValidator() you are saying the validator to break the chain whenever validator fails . Since "" is not an valid email address hence the first email validator fails and breaks the chain
From Zend Doc http://framework.zend.com/manual/en/zend.validate.validator_chains.html
In some cases it makes sense to have a validator break the chain if
its validation process fails. Zend_Validate supports such use cases
with the second parameter to the addValidator() method. By setting
$breakChainOnFailure to TRUE, the added validator will break the chain
execution upon failure, which avoids running any other validations
that are determined to be unnecessary or inappropriate for the
situation. If the above example were written as follows, then the
alphanumeric validation would not occur if the string length
validation fails:
$validatorChain->addValidator(
new Zend_Validate_StringLength(array('min' => 6,
'max' => 12)),
true)
->addValidator(new Zend_Validate_Alnum());
I have a form element for capturing email addresses. I am using Zend_Validate_EmailAddress on the element, and it generates error messages that aren't very user-friendly.
My first step was to specify new messages that were more user-friendly, but some of the checks simply don't lend themselves to a user-friendly message. I then tried to simply clear those messages after running isValid() on the form and specify my own, but none of the functions I've found will clear the messages.
What I've tried and results
setErrorMessages() - Values set here seem to be ignored altogether
clearErrorMessages() - Seems to be ignored
setErrors() - Adds my message, but leaves the others intact
This is the code that displays the errors in my custom view script:
<?php if ($this->element->hasErrors()): ?>
<?php echo $this->formErrors($this->element->getMessages()); ?>
<?php endif; ?>
MY SOLUTION
I'm awarding Gordon with the answer, because his solution is most complete, but I ended up using the addErrorMessage() function on the element like this:
$element->addValidator('EmailAddress', false, $this->_validate['EmailAddress'])
->addErrorMessage("'%value%' is not a valid email address");
$element->addValidator('Date', false, array('MM/dd/yyyy'))
->addErrorMessage("Date must be in MM/DD/YYYY format");
From the Reference Guide (emphasis mine):
Some developers may wish to provide custom error messages for a validator. The $options argument of the Zend_Form_Element::addValidator() method allows you to do so by providing the key 'messages' and mapping it to an array of key/value pairs for setting the message templates. You will need to know the error codes of the various validation error types for the particular validator.
So you can do:
$form = new Zend_Form;
$username = new Zend_Form_Element_Text('username');
$username->addValidator('regex', false, array(
'/^[a-z]/i',
'messages' => array(
'regexInvalid' => 'foo',
'regexNotMatch' => 'bar',
'regexErrorous' => 'baz'
)
));
$form->addElement($username);
$form->isValid(array('username' => '!foo'));
which will then render 'bar' for the error message, because the regex does not match because it doesnt start with a letter from a-Z.
This is equivalent to using:
$username->setErrorMessages(
array(
'regexNotMatch' => 'The value %value% must start with a-Z',
…
)
);
I've used a different pattern to illustrate how to use the validated value in the pattern.
You can also use setErrors, if you want to delete any default templates, e.g.
$username->setErrors(array('The value must start with a-Z'));
Whatever you do, you have to configure that before validating with isValid. Once the validation is run, the Zend_Form_Element will contain the default error message otherwise. I am not aware of any way to reset that then (though someone might want to correct me on that).
Further quoting the reference guide:
A better option is to use a Zend_Translate_Adapter with your form. Error codes are automatically passed to the adapter by the default Errors decorator; you can then specify your own error message strings by setting up translations for the various error codes of your validators.
All the validation messages can be customized from the file in
http://framework.zend.com/svn/framework/standard/trunk/resources/languages/en
The file should be in APPLICATION_PATH/resources/languages, but can really be placed anywhere as long as you tell Zend_Translate where to find it.
When you define a form element like this
$titel = new Zend_Form_Element_Text ( "titel" );
$titel->setLabel ( "Titel" )->setRequired ( true )
->addValidator ( 'regex', false, array ("/[\pL\pN_\-]+/" ) );
you can specify a error message in your view script
<?php
$form = $this->form;
$errorsMessages =$this->form->getMessages();
?>
<div>
<label>Titel</label> <?php echo $form->titel->renderViewHelper()?>
<?php
if(isset($errorsMessages['titel'])){
echo "<p class='error'>There's something wrong!</p>";
}
?>
</div>
I don't know if this conforms your way but I really like defining my forms this way ;)
One way you can attack it is to create your own custom validator by extending the validator you plan on using and overriding the messages. For instance, looking at Zend_Validate_Alnum, it looks like this:
class Zend_Validate_Alnum extends Zend_Validate_Abstract
{
const INVALID = 'alnumInvalid';
const NOT_ALNUM = 'notAlnum';
const STRING_EMPTY = 'alnumStringEmpty';
[ ... ]
protected $_messageTemplates = array(
self::INVALID => "Invalid type given. String, integer or float expected",
self::NOT_ALNUM => "'%value%' contains characters which are non alphabetic and no digits",
self::STRING_EMPTY => "'%value%' is an empty string",
);
[ ... ]
}
Override the $_messageTemplates array in your own class like this
class My_Validate_Alnum extends Zend_Validate_Alnum
{
protected $_messageTemplates = array(
self::INVALID => "My invalid message",
self::NOT_ALNUM => "foo",
self::STRING_EMPTY => "'%value%' is bar",
);
[ ... ]
}
Then instead of using Zend_Validate_Alnum, use My_Validate_Alnum as your validator. Custom validators are very simple to create.
Below is sample code to create a radio button element with Yes/No options in Zend_Form. Any ideas on how to set the required answer to Yes, so if No is selected, it'll fail validation? The code below will accept either Yes or No.
$question= new Zend_Form_Element_Radio('question');
$question->setRequired(true)
->setLabel('Are you sure?')
->setMultiOptions(array('Yes', 'No'));
Not sure if this is the best way, but it worked for me:
$questionValid = new Zend_Validate_InArray(array('Yes'));
$questionValid->setMessage('Yes is required!');
$question = new Zend_Form_Element_Radio('question');
$question->setRequired(true)
->setLabel('Are you sure?')
->setMultiOptions(array('Yes'=>'Yes', 'No'=>'No'))
->addValidator($questionValid);
A quicker way, though this wouldn't work for other situations:
$question = new Zend_Form_Element_Radio('question');
$question->setRequired(true)
->setLabel('Are you sure?')
->setMultiOptions(array('Yes'=>'Yes', 'No'=>'No'))
->addValidator('StringLength', false, array('min' => 3, 'messages' => "You must be sure."));
Since "no" is less than 3 characters, this will fail unless "yes" is selected. It's a little "hacky", but I like this way because it uses less code and also makes use of the built-in validators.