I'm trying to validate form input in yii2, I want to check user's input against a certain value from the database.
In my model i have this
use backend\models\RealAccount;
class Amount extends Model
{
public $amount;
/**
* {#inheritdoc}
*/
public function rules()
{
return [
[['amount'], 'number'],
['amount', 'checkBalance'],
['amount', 'compare', 'compareValue' => function($model) {
return RealAccount::getAccountBalance();
}, 'operator' => '<=', 'message' => \Yii::t('app','Insufficient balance')
],
];
}
public function checkBalance($attribute)
{
/*check wallet balance is greater or equal to amount*/
$balance = RealAccount::getAccountBalance();
if(!$balance >= $this->amount){
$this->addError($attribute, \Yii::t('app','Insufficient balance');
}
}
}
I tried both checkBlance, and also try compareValue but non of this work as I expected. NOTE i didn't use bot the same time, tired one it failed then i try the other,
Suppose my Balance is 200, if user input 201, i want to return error message. thanks for any help
Related
I am new to Yii2 Framework and I need to understand the users status. I need to create an app that assign many statuses to the user, comparing to just 2 that Yii2 gave. In Yii2 common\models\Users there are two constants: STATUS_DELETED = 0; and STATUS_ACTIVE = 10;. There is a block of code that limits the range of the value of status to 0-10, which is STATUS_DELETED and STATUS_ACTIVE. If I need to add other status like STATUS_DISABLED = 20 in the rules() part, how do I modify this block? Do I need to remove the STATUS_ACTIVEand replace it with STATUS_DISABLED, or I should just limit the value of STATUS_DISABLED to be within the range of 0-10. How do I make this work? I don't understand this part.
class User extends ActiveRecord implements IdentityInterface
{
const STATUS_DELETED = 0;
const STATUS_ACTIVE = 10;
const STATUS_DISABLED = 20; // I want to add this
/**
* #inheritdoc
*/
public static function tableName()
{
return '{{%user}}';
}
/**
* #inheritdoc
*/
public function behaviors()
{
return [
TimestampBehavior::className(),
];
}
/**
* #inheritdoc
*/
public function rules()
{
return [
['status', 'default', 'value' => self::STATUS_ACTIVE],
['status', 'in', 'range' => [self::STATUS_ACTIVE, self::STATUS_DELETED]],
];
}
}
$range should contain array of valid values, not actual range in the meaning of "between A and B". So this:
['status', 'in', 'range' => [self::STATUS_ACTIVE, self::STATUS_DELETED]],
means that status should be either 0 or 10. For example 5 will not be valid value. And you can add any number of values to range array, like this:
[
'status', 'in',
'range' => [self::STATUS_ACTIVE, self::STATUS_DELETED, self::STATUS_DISABLED]
],
I have a text field that was defined as required in its model. But a view needs not be required. I try this way to remove the required attribute but it doesn't work:
<?= $form->field($model, 'city')->textInput(['required' => false]) ?>
I need to change it in a view or in its controller. But not in its model (because others view needs the required attribute.).
I know how to do it using jQuery but I prefer with PHP/Yii2.
Update (requiered by the nice help of #Muhammad Omer Aslam):
My model is called Persons.
My view is called _form.
My controller is called PersonsControllers. It has the update function:
actionUpdate($id):
public function actionUpdate($id)
{
$model = $this->findModel($id); // How to add my new scenario here?
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id_person]);
}
return $this->render('update', [
'model' => $model,
]);
}
You can use scenarios to make the field required or not for the specific view. You can assign the active fields that are required for the scenario, and those fields will be the subject to validation.
I assume the model is Profile. In below example firstname, lastname and city is required in the default scenario.
A model may be used in different scenarios, by default the scenario default is used. Let's say in your case we can declare a scenario special that will only require firstname and lastname. In your model, you will declare a constant for the scenario name, and then override the scenarios() method, key=>value pairs with the active field names being passed in form of an array to the value will be assigned.
namespace app\models;
use yii\db\ActiveRecord;
class Profile extends ActiveRecord
{
const SCENARIO_SPECIAL = 'special';
public function scenarios()
{
$scenarios = parent::scenarios();
$scenarios[self::SCENARIO_SPECIAL] = ['firstname', 'lastname'];
return $scenarios;
}
}
and then inside your controller/action for that view where you do not want the city field to be required, initialize the Profile model object as below
public function actionProfile(){
$model = new \common\models\Profile(['scenario'=> \common\models\Profile::SCENARIO_SPECIAL]);
return $this->render('profile',['model'=>$model]);
}
Now if you submit the form inside this view it will ask only for the firstname and lastname whereas in your previous forms/views if you try to submit the form it will ask you to provide the city when trying to submit, you don't have to change or add anything for the rest of the forms or the rules.
As you are trying to update the record and do not want the city to be required when updating the record, the only difference that could be is to assign the scenario like below as you are not creating a new object for the model.
$model->scenario=\common\models\Profile::SCENARIO_SPECIAL;
In the model:
const SCENARIO_MYSPECIAL = 'myspecial';
public function rules()
{
return [
[['id_person', 'city'], 'required', 'on' => self::SCENARIO_DEFAULT],
[['id_person'], 'required', 'on' => self::SCENARIO_MYSPECIAL],
];
}
In the controller:
public function actionUpdate($id)
{
$model = $this->findModel($id);
$model->scenario = 'myspecial';
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id_person]);
}
return $this->render('update', [
'model' => $model,
]);
}
go to the model and remove the attribute
public function rules()
{
return [
[['id_person', 'city'], 'required'],
[['id_person'], 'required'],
];
}
EX:
public function rules()
{
return [
[['id_person'], 'required'],
[['id_person'], 'required'],
];
}
I have custom form where I am trying to write a custom validator, but its not firing. The model is returned as valid every time submit button is hit:
class DeactivateForm extends Model {
public $deactivate_reason;
public function rules() {
return [
[ 'deactivate_reason', 'reasonValidator' ],
];
}
public function reasonValidator( $attribute, $params ) {
$this->addError( 'deactivate_reason', 'Error !!!' );
}
public function attributeLabels() {
return [
'deactivate_reason' => 'Reason for deactivating',
];
}
}
The actual form is plain jane:
$form = ActiveForm::begin( [
'id' => 'deactivate-form'
] );
When using [ 'deactivate_reason', 'required' ] in the rules, the required rule works fine, custom rule is still ignored...
I am not sure but to forcefully run validation on empty field, add following property.
skipOnError=>false and skipOnEmpty=>false
[
['deactivate_reason', 'reasonValidator', 'skipOnError' => false,'skipOnEmpty'=>false],
]
Try this,add return like below
public function reasonValidator( $attribute, $params ) {
return $this->addError( 'deactivate_reason', 'Error !!!' );
}
I am trying to create a many to many relationship between a profile and several fields within that profile including languages and specialities. I have looked at several implementations and understand that there are several extensions, but I am required to minimise usage of extensions.
I have created the proper migration...this is a skeleton and the user table is purely for logins and OAuth...so keys can be ignored. As you can see in my controller I don't really know the way forward at this point. My language model is for all intensive purposes static from this controller(It is controlled by an admin backend). What is working? If I make a couple modifications to the below code then the checkboxlist will display with the proper checked items that I manually added to the lookup table. Trying to modify the lookup table from code, I have been unable to do unless I populate the $languageModel with a findOne(knownPK), however that is not usable, because multiple checkboxes can be selected resulting in an array and the link command requires ActiveRecordInterface which is singular. Ideally I would like to simply use
$languageModel->load(Yii::$app->request->post(),$trainerModel->formName());
but that isn't working.
Additionally, is there a mechanism within the framework to remove lookups or is that done manually. Any help or insight would be helpful. Thank you in advance.
public function safeUp()
{
$this->createTable('student', [
'id' => $this->primaryKey(),
'user_id' => $this->integer()->notNull(),
]);
$this->createTable('language', [
'id' => $this->primaryKey(),
'language' => $this->string(63),
]);
$this->createTable('student_language',[
'id' => $this->primaryKey(),
'language_id' => $this->integer(),
'student_id' => $this->integer()
]);
$this->addForeignKey('fk-student-language-language', 'student_language', 'language_id', 'language', 'id', 'CASCADE', 'CASCADE');
$this->addForeignKey('fk-student-language-student', 'student_language', 'student_id', 'student', 'id', 'CASCADE', 'CASCADE');
$this->addForeignKey('fk-student-user-user_id', 'student', 'user_id', 'user', 'id', 'CASCADE', 'CASCADE');
}
My student Active Record
/**
* #return \yii\db\ActiveQuery
*/
public function getstudentLanguages()
{
return $this->hasMany(studentLanguage::className(), ['student_id' => 'id']);
}
public function getLanguages(){
return $this->hasMany(Language::className(),['id'=>'language_id'])->viaTable('student_language',['student_id'=>'id']);
}
My Language Model
/**
* #return \yii\db\ActiveQuery
*/
public function getstudentLanguages()
{
return $this->hasMany(studentLanguage::className(), ['language_id' => 'id']);
}
public function getLanguages(){
return $this->hasMany(student::className(),['id'=>'student_id'])->viaTable('student_language',['language_id'=>'id']);
}
My Controller
public function actionProfile()
{
if (Yii::$app->user->isGuest) {
throw new UnauthorizedHttpException('This page requires you to be logged in');
} else {
$user_id = Yii::$app->user->identity->getId();
$studentModel = $this->findstudentModelByUserId($user_id);
if (is_null($studentModel)) {
$studentModel = new student();
$studentModel->setAttribute('user_id', $user_id);
$studentModel->save();
}
$languageModel = ??????????????????
$studentModel->load(Yii::$app->request->post()) && $studentModel->save() && $studentModel->link('languages',$languageModel);
}
return $this->render('profile', ['model' => $studentModel]);
}
My View
<?= $form->field($model, 'languages')->checkboxList(\common\models\Language::find()->select(
['language', 'id'])->indexBy('id')->column(), ['prompt' => 'select Language']); ?>
This is my solution at this point, however I am interested to hear improvements.
Note: There is no error checking etc...just functional code.
I added this to the student activerecord class
public function linkMultiple( $name,Array $models){
studentLanguage::deleteAll(['student_id' =>$this->id]);
foreach($models as $model){
$this->link($name, $model);
}
return true;
}
Modified my Controller action to the following
public function actionProfile()
{
if (Yii::$app->user->isGuest) {
throw new UnauthorizedHttpException('This page requires you to be logged in');
} else {
$user_id = Yii::$app->user->identity->getId();
$studentModel = $this->findstudentModelByUserId($user_id);
if (is_null($studentModel)) {
$studentModel = new student();
$studentModel->setAttribute('user_id', $user_id);
$studentModel->save();
}
$languages = Yii::$app->request->post('student')['languages'];
$languageModels = Language::findAll($languages);
$studentModel->load(Yii::$app->request->post()) && $studentModel->save() && $studentModel->linkMultiple('languages',$languageModels);
}
return $this->render('profile', ['model' => $studentModel]);
}
i have table feedback and user, i am trying to show user's image on feedback page.
i am using grid view, this is my gridview.
[ 'attribute' => 'iduser.photo',
'headerOptions' => ['width' => '20px'],
'format' => 'image',
'value'=> function($data) { return $data->imageurl; },
],
and the model
public function getImageurl()
{
return \Yii::$app->request->BaseUrl.'/../../'.$this->hasOne(User::className(), ['photo' => 'photo']);
}
i get right url but the photoname is wrong the result is "photo", i want getting the data form entity photo?
Inside your model you should have a way to get the User related to your feedback like this:
public function getUser() {
return $this->hasOne(User::className(), ['id' => 'user_id']);
}
Then your getImageurl method should look something like this:
public function getImageurl()
{
return \Yii::$app->request->BaseUrl.'/../../'.$this->user->photo;
}
I would recommend checking out Aliases, you can use them instead of \Yii::$app->request->BaseUrl. For example, this is the implementation i use to get a file url to show to the user:
public function getFileUrl() {
return Yii::getAlias('#web/uploads/'.$this->fileName);
}