Hi there I have a table in which combination of three fields is unique. I want to put the check of duplication on this combination. Table looks like
I know how to validate single field, But how to validate the combination is not know. To validate one field I use the following function
public function isValid($data) {
// Options for name field validation
$options = array(
'adapter' => Zend_Db_Table::getDefaultAdapter(),
'table' => 'currencies',
'field' => 'name',
'message'=> ('this currency name already exists in our DB'),
);
// Exclude if a id is given (edit action)
if (isset($data['id'])) {
$options['exclude'] = array('field' => 'id', 'value' => $data['id']);
}
// Validate that name is not already in use
$this->getElement('name')
->addValidator('Db_NoRecordExists', false, $options
);
return parent::isValid($data);
}
Will any body guide me how can I validate duplication on combined fields?
There is no ready to use validator for this, as far as I know. You have either to write your own, or do a check with SQL-query with three conditions (one for each field).
you have to Apply a validation on name element of zend form.
Here is code for add validation on name field.
$name->addValidator(
'Db_NoRecordExists',
true,
array(
'table' => 'currencies',
'field' => 'name',
'messages' => array( "recordFound" => "This Currency Name already exists in our DB") ,
)
);
And you must set required true.
Related
What is right naming or what am I missing to get automagic run for two word named Model. Actual model belong to the two words named model.
Exact example:
Tour belongs to Accommodation type.
in database there is table tours and table accommodation_types
foreign key from tours is tours.accommodation_type_id
Snapshots of code below.
ToursController.php
public function add() {
//...
$accommodation_types = $this->Tour->AccommodationType->find('list');
//...
$this->set(compact('accommodation_types', ...));
}
Tour.php
//...
public $belongsTo = array(
//...
'AccommodationType' => array(
'className' => 'AccommodationType',
'foreignKey' => 'accommodation_type_id',
'conditions' => '',
'fields' => '',
'order' => ''
),
//...
);
Tours/add.ctp (inside a form)
echo $this->Form->input('accommodation_type_id', array('label' => 'Accommodation type'));
As per convention the view vars names should be camelBacked. So rename the view var from $accommodation_types to $accommodationTypes. If you don't follow convention you have to explicitly specify the options var to use like this:
echo $this->Form->input('accommodation_type_id', array('options' => $accommodation_types, 'label' => 'Accommodation type'));
I have an entity that can have an image. This is done using a OneToMany relationship. Now I want the user to choose an image. I can of course use a form field like this:
$builder->add('image', 'entity', array(
'label' => 'Image',
'class' => 'VendorNameBundle:Image',
'property' => 'id',
) );
It renders as expected a dropdown with all the ids. But what I actually want is only a single field that is hidden and that stores the id of the selected image.
This would work but it seems not like a good thing …
In the type:
$builder->add('_image', 'text', array(
'data' => $object->getImage()->getId(),
'property_path' => false
));
In the controller:
$_image = $form["_image"]->getData();
if ($_image) {
$image = $this->getDoctrine()->getRepository('VendorNameBundle:Image')->find($_image);
if ($image) {
$object->setImage($image);
}
}
My question is: How can I get a hidden text field that contains the ID of the related object and stores the new selected one?
I have a mysql table named users having fields: username, password, email
I have controller/action like this 'user/update' for adding new user and 'user/update/id/{user_id}'
I have same Zend_Form for both controller. For adding new user, I've checked whether the username already exist or not using below code:
$username->addValidator('Db_NoRecordExists', true, array('table' => 'user', 'field' => 'username'));
This works well when new user is added but when editing the user, even when the user leaves the username field as it is, i get username already exist error.
Is their a validation that zend provide similar to Db_NoRecordExists for editing the field.
In editing case,i want query like:
SELECT COUNT(*) FROM users WHERE username='$username' AND id!=$update_id
How can i do this?
You can convert your sql query into Zend_Db_Select
$select = Zend_Db_Table::getDefaultAdapter()->select()->from('users')->where('username =?',$username)
->where('id != ?',$update_id);
$validator = new Zend_Validate_Db_NoRecordExists($select);
Zend_Validate_Db_NoRecordExists has an exclude option for this case:
$validator = new Zend_Validate_Db_NoRecordExists(
array(
'table' => 'users',
'field' => 'username',
'exclude' => array(
'field' => 'id',
'value' => $user_id
)
)
);
I have a form with 2 selects. Based on the value of the first select, it updates the values of the second select using AJAX. Doing this makes the form not being valid. So, I made the next change:
$form=$this->getAddTaskForm(); //the form
if(!$form->isValid($_POST)) {
$values=$form->getValues();
//get the options and put them in $options
$assignMilestone=$form->getElement('assignedMilestone');
$assignMilestone->addMultiOptions($options);
}
if($form->isValid($_POST)) {
//save in the database
}else {
//redisplay the form
}
Basically, I check if it is valid and it isn't if the user changed the value of the first select. I get the options that populated the second select and populate the form with them. Then I try to validate it again. However this doesn't work. Anybody can explain why? The same "value was not found in the haystack" is present.
You could try to deactivate the validator:
in your Form.php
$field = $this->createElement('select', 'fieldname');
$field->setLabel('Second SELECT');
$field->setRegisterInArrayValidator(false);
$this->addElement($field);
The third line will deactivate the validator and it should work.
You can also disable the InArray validator using 'disable_inarray_validator' => true:
For example:
$this->add( array(
'name' => 'progressStatus',
'type' => 'DoctrineModule\Form\Element\ObjectSelect',
'options' => array(
'disable_inarray_validator' => true,
),
));
Additionaly you should add you own InArray Validator in order to protect your db etc.
In Zend Framework 1 it looks like this:
$this->addElement('select', $name, array(
'required' => true,
'label' => 'Choose sth:',
'filters' => array('StringTrim', 'StripTags'),
'multiOptions' => $nestedArrayOptions,
'validators' => array(
array(
'InArray', true, array(
'haystack' => $flatArrayOptionsKeys,
'messages' => array(
Zend_Validate_InArray::NOT_IN_ARRAY => "Value not found"
)
)
)
)
));
Where $nestedArrayOptions is you multiOptions and $flatArrayOptionsKeys contains you all keys.
You may also add options to select element before checking for the form validation. This way you are insured the select value is in range.
I usualy use Zend_Validate_Db_RecordExists to update or insert a record. This works fine with one field to check against. How to do it if you have two fields to check?
$validator = new Zend_Validate_Db_RecordExists(
array(
'table' => $this->_name,
'field' => 'id_sector,day_of_week'
)
);
if ($validator->isValid($fields_values['id_sector'],$fields_values['day_of_week'])){
//true
}
I tried it with an array and comma separated list, nothing works... Any help is welcome.
Regards
Andrea
To do this you would have to extend the Zend_Validate_Db_RecordExists class.
It doesn't currently know how to check for the existence of more than one field.
You could just use two different validator instances to check the two fields separately. This is the only work around that I can see right now besides extending it.
If you choose to extend it then you'll have to find some way of passing in all the fields to the constructor ( array seems like a good choice ), and then you'll have to dig into the method that creates the sql query. In this method you'll have to loop over the array of fields that were passed in to the constructor.
You should look into using the exclude parameter. Something like this should do what you want:
$validator = new Zend_Validate_Db_RecordExists(
array(
'table' => $this->_name,
'field' => 'id_sector',
'exclude' => array(
'field' => 'day_of_week',
'value' => $fields_values['day_of_week']
)
);
The exclude field will effectively add to the automatically generated WHERE part to create something equivalent to this:
WHERE `id_sector` = $fields_values['id_sector'] AND `day_of_week` = $fields_values['day_of_week']
Its kind of a hack in that we're using it for the opposite of what it was intended, but its working for me similar to this (I'm using it with Db_NoRecordExists).
Source: Zend_Validate_Db_NoRecordExists example
Sorry for the late reply.
The best option that worked for me is this:
// create an instance of the Zend_Validate_Db_RecordExists class
// pass in the database table name and the first field (as usual)...
$validator = new Zend_Validate_Db_RecordExists(array(
'table' => 'tablename',
'field' => 'first_field'
));
// reset the where clause used by Zend_Validate_Db_RecordExists
$validator->getSelect()->reset('where');
// set again the first field and the second field.
// :value is a named parameter that will be substituted
// by the value passed to the isValid method
$validator->getSelect()->where('first_field = ?', $first_field);
$validator->getSelect()->where('second_field = :value', $second_field);
// add your new record exist based on 2 fields validator to your element.
$element = new Zend_Form_Element_Text('element');
$element->addValidator($validator);
// add the validated element to the form.
$form->addElement($element);
I hope that will help someone :)
Although, I would strongly recommend a neater solution which would be to extend the Zend_Validate_Db_RecordExists class with the above code.
Enjoy!!
Rosario
$dbAdapter = Zend_Db_Table::getDefaultAdapter();
'validators' => array('EmailAddress', $obj= new Zend_Validate_Db_NoRecordExists(array('adapter'=>$dbAdapter,
'field'=>'email',
'table'=>'user',
'exclude'=>array('field'=>'email','value'=>$this->_options['email'], 'field'=>'is_deleted', 'value'=>'1')
))),
For those using Zend 2, If you want to check if user with given id and email exists in table users, It is possible this way.
First, you create the select object that will be use as parameter for the Zend\Validator\Db\RecordExists object
$select = new Zend\Db\Sql\Select();
$select->from('users')
->where->equalTo('id', $user_id)
->where->equalTo('email', $email);
Now, create RecordExists object and check the existence this way
$validator = new Zend\Validator\Db\RecordExists($select);
$validator->setAdapter($dbAdapter);
if ($validator->isValid($username)) {
echo 'This user is valid';
} else {
//get and display errors
$messages = $validator->getMessages();
foreach ($messages as $message) {
echo "$message\n";
}
}
This sample is from ZF2 official doc
You can use the 'exclude' in this parameter pass the second clause that you want to filter through.
$clause = 'table.field2 = value';
$validator = new Zend_Validate_Db_RecordExists(
array(
'table' => 'table',
'field' => 'field1',
'exclude' => $clause
)
);
if ($validator->isValid('value') {
true;
}
I am using zend framework v.3 and validation via InputFilter(), it uses same validation rules as zend framework 2.
In my case I need to check, if location exists in db (by 'id' field) and has needed company's id ('company_id' field).
I implemented it in next way:
$clause = new Operator('company_id', Operator::OP_EQ, $companyId);
$inputFilter->add([
'name' => 'location_id',
'required' => false,
'filters' => [
['name' => 'StringTrim'],
['name' => 'ToInt'],
],
'validators' => [
[
'name' => 'Int',
],
[
'name' => 'dbRecordExists',
'options' => [
'adapter' => $dbAdapterCore,
'table' => 'locations',
'field' => 'id',
'exclude' => $clause,
'messages' => [
'noRecordFound' => "Location does not exist.",
],
]
],
],
]);
In this case validation will pass, only if 'locations' table has item with columns id == $value and company_id == $companyId, like next:
select * from location where id = ? AND company_id = ?