yii2 How to transfer post data from one view to two? - yii2

I am trying to create make a two-step form in yii2.
This is my SiteController.php
public function actionCreateCharacter()
{
$model = new Character();
var_dump(Yii::$app->request->post('Character'));
if ($model->load(Yii::$app->request->post())) {
$attributes=['imie','nazwisko','plec','wyznanie_id'];
if ($step1 = $model->validate($attributes)) {
//var_dump($step1);
// form inputs are valid, do something here
//var_dump(Yii::$app->request->post('Character');
return $this->render('createCharacterStep2', [
'model' => $model,
]);;
}
else {
// validation failed: $errors is an array containing error messages
$errors = $model->errors;
}
}
return $this->render('createCharacter', [
'model' => $model,
]);
}
public function actionCreateCharacterStep2()
{
$model2 = new Character();
var_dump($model);
if ($model2->load(Yii::$app->request->post())) {
var_dump(Yii::$app->request->post('Character'));
if ($model2->validate()) {
// form inputs are valid, do something here
return;
}
}
/*return $this->render('createCharacter2', [
'model' => $model,
]);*/
}
... and this is my Character.php (model + attributeLabels and tableName)
public function rules()
{
return [
[['user_id', 'imie', 'nazwisko', 'plec', 'wyznanie_id', 'avatar_src', 'avatar_svg'], 'required'],
[['user_id', 'wyznanie_id'], 'integer'],
[['avatar_svg'], 'string'],
[['imie'], 'string', 'max' => 15],
[['nazwisko'], 'string', 'max' => 20],
[['plec'], 'string', 'max' => 1],
[['avatar_src'], 'string', 'max' => 30]
];
}
I have access to $_POST by Yii::$app->request->post() in createCharacter - I get imie, nazwisko, plec and wyznanie_id.
But when I send the form in step 2 I have only post data from step 2.
How can I set the post data from step1+step2?
Sorry for my english and thanks in advance.

While rendering step2 from step1 action, you can always pass additional data to controller's action. So I added "STEPONEPOSTS" post variable which contains all posts of step 1. Check below.
public function actionCreateCharacter()
{
$model = new Character();
var_dump(Yii::$app->request->post('Character'));
if ($model->load(Yii::$app->request->post())) {
$attributes=['imie','nazwisko','plec','wyznanie_id'];
if ($step1 = $model->validate($attributes)) {
//var_dump($step1);
// form inputs are valid, do something here
//var_dump(Yii::$app->request->post('Character');
return $this->render('createCharacterStep2', [
'model' => $model,
'STEPONEPOSTS' => Yii::$app->request->post(),
]);;
}
else {
// validation failed: $errors is an array containing error messages
$errors = $model->errors;
}
}
return $this->render('createCharacter', [
'model' => $model,
]);
}
And now in step 2 view, you can get step 1 posts variable as
$STEPONEPOSTS

There is another way , if you have to table for step 1 and step 2. then save the data of step 1 first then step2 data. if you are not using two tables then you can create two form each form for each step and also create scenarios for each step according to the fields.I think this may help . You can use session also as per discussion in comments or you can use the extension array wizard but array wizard extension is not well documented , so i suggest you try my way i will help you.

Related

yii2 file required custom validation

I have a form where the required validation rules for the fields can be configures and stored in the model.
When rendering the form, I create the validation rules as follows (simplified) which works fine.
$view_parameters = $competition_article->view_parameters;
if (!empty($view_parameters) && is_array($view_parameters)) {
foreach ($view_parameters as $parameter_key => $parameter_value) {
$field_name = $parameter_value['name'];
$field_required = $parameter_value['required'];
if ($field_required) {
Validator::createValidator('required', $model, [$field_name]);
}
}
}
For the form submission, I use a custom validation rule. This works for all but the file attachment.
public function rules()
{
$rules = [
[['firstname', 'surname', 'closeststore', 'email', 'phone', 'response', 'attachment'],
'dynamicValidator',
'skipOnEmpty' => false
],
[['attachment'], 'file',
'extensions' => 'pdf, jpeg, jpg, doc, docx',
'checkExtensionByMimeType'=>false
],
];
return $rules;
}
On the custom validation method, I handle the file separately.
I tried
a) addError() and return false
b) createValidator() and validateAttribute() pair , which works for the text fields.
public function dynamicValidator($attribute, $params, $validator )
{
$view_parameters = $this->view_parameters;
if ($view_parameters[$attribute]['required'])
$validator = new Validator();
if ($attribute == 'attachment') {
if (empty($_FILES['CompetitionForm']['name']['attachment']))
[$attribute]);
$this->addError( $attribute, 'Please include your attachment to enter.');
// NOTE : Adding the validator has no effect
// $validator = $validator->createValidator('required', $this,
// $validator->validateAttribute($this, $attribute);
return false;
}
$validator = $validator->createValidator('required', $this, [$attribute]);
$validator->validateAttribute($this, $attribute);
}
}
Despite the code being reached, an error is not raised when the attachment is require and the either the addError() or createValidator() is called.
How can I fail the validation when no file is attached and the attachment is required?
You can try with this validation rules for attachment using skipOnEmpty.
[['attachment'], 'file',
'skipOnEmpty' => false,
'extensions' => 'pdf, jpeg, jpg, doc, docx',
'checkExtensionByMimeType'=>false
],

How to add custom new field in yii2 gii generated crud

I have made one CRUD in YII2 using Gii having 10 fields. In my mysql table there was logo column so Gii generated text field for it. I converted it to file field using the following code.
$form->field($model, 'manufacturer_logo')->fileInput()
Now I am not getting any clue where I can write controller side code so that I can save logo in folder and DB like other fields. There is no saving code in Gii generated controller. I tried to follow this but it also did not work.
In my model rules, I have written following line for valid image file.
public function rules()
{
return [
[['manufacturer_description', 'manufacturer_status','manufacturer_logo'], 'string'],
[['manufacturer_name','manufacturer_status','manufacturer_logo'], 'required'],
[['manufacturer_logo'], 'file', 'skipOnEmpty' => true, 'extensions' => 'png, jpg'],
[['created_at', 'updated_at'], 'safe'],
[['manufacturer_name'], 'string', 'max' => 255],
];
}
Now when I fill all fields and browse image as well and press submit then it gives me error "Please upload a file", here you can see so I am not able to upload image and save its name in DB column like other fields.
For further doing RND, Now image is saving in folder but not in database, Here I changed controller code.
public function actionCreate()
{
$model = new Manufacturers();
if ($model->load(Yii::$app->request->post())) {
//upload logo
$base_path = Yii::getAlias('#app');
//$model = new UploadForm();
$imageFile = UploadedFile::getInstance($model,'manufacturer_logo');
$logoName = "";
if (isset($imageFile->size)) {
$imageFile->saveAs($base_path . '/web/uploads/' . $imageFile->baseName . '.' . $imageFile->extension);
$logoName = $imageFile->baseName . '.' . $imageFile->extension;
}
if(trim($logoName)!='') {
$model->manufacturer_logo = trim($logoName);
}
$model->save(false);
return $this->redirect(['view', 'id' => $model->id]);
}
return $this->render('create', [
'model' => $model,
]);
}

Define multiple scenarios and validate with multiple scenarios in Yii 2 model

In model I have defined multiple scenarios:
public function rules() {
return [
[['in_quantity'], 'required','on'=>['stockIn']],
[['out_quantity'], 'required','on'=>['stockOut']],
];
}
Is it possible to use both scenario stockIn and stockOut for single model validation?
$StockModel->scenario[] = 'stockOut';
$StockModel->scenario[] = 'stockIn';
or
$StockModel->scenario = ['stockOut','stockIn'];
You can't have multiple scenarios for model. But you can have multiple scenarios for rule:
public function rules() {
return [
[['in_quantity'], 'required', 'on' => ['stockIn', 'stockOut']],
[['out_quantity'], 'required', 'on' => ['stockIn', 'stockOut']],
];
}
If you need multiple scenarios for model, it means that you're overusing scenarios feature.
Also note that it is not recommended to use too many scenarios in one model - scenarios work fine for simple cases, but more complicated cases should be handled by separate models for each scenario.
You can create multiple scenarios this way in model
class MyModel extends \yii\db\ActiveRecord {
const SCENARIO_CREATE = 'scenario_create';
const SCENARIO_UPDATE = 'scenario_update';
// get scenarios
public function scenarios()
{
return [
self::SCENARIO_CREATE => ['user_id', 'name', 'desc', 'published','date_create'],
self::SCENARIO_UPDATE => ['user_id', 'name', 'desc', 'date_update'],
];
}
public function rules()
{
[['user_id'], 'integer'],
[['name','desc'], 'string', 'max' => 70],
[['date_create', 'date_update'], 'date', 'format' => 'php:Y-m-d H:i:s'],
];
}
}
and you can use this way anywhere
public function actionIndex() {
$model = new MyModel;
$model->scenario = MyModel::SCENARIO_CREATE;
if ($model->load(\Yii::$app->request->post())){
if($model->save()){
// some operations
}
}
}
You could if you extend the rule with when for server validation:
[
['in_quantity'],
'required',
'when' => function ($model) {
return $model->scenario === 'stockIn' || $model->scenario === 'stockOut';
}
]
Also if you want to validate in the form (aka client side validation) you could also use the whenClient that expect a js function:
'whenClient' => "function (attribute, value) {
const scenario = $('#stock-scenario').val()
return scenario === 'stockIn' || scenario = 'stockOut';
}"

Cannot generate HalResource for object of type ArrayObject

I've some problems to return a paginator object as HAL json collection. I'm using the latest versions of zend-expressive and zend-expressive-hal.
This is the setting from my ConfigProvider:
public function __invoke() : array
{
return [
'dependencies' => $this->getDependencies(),
MetadataMap::class => $this->getHalConfig(),
];
}
public function getHalConfig() : array
{
return [
[
'__class__' => RouteBasedCollectionMetadata::class,
'collection_class' => RoleCollection::class,
'collection_relation' => 'user_roles',
'route' => 'api.user.roles',
],
];
}
And these are my handler methods:
public function get(ServerRequestInterface $request) : ResponseInterface
{
// read some records from the database
$select = new Select();
$select->from(['r' => 'user_roles']);
$select->columns(['id', 'name']);
$paginator = new RoleCollection(new DbSelect($select, $this->dbAdapter));
$paginator->setItemCountPerPage(25);
$paginator->setCurrentPageNumber(1);
return $this->createResponse($request, $paginator);
}
private function createResponse(ServerRequestInterface $request, $instance) : ResponseInterface
{
return $this->responseFactory->createResponse(
$request,
$this->resourceGenerator->fromObject($instance, $request)
);
}
The RoleCollection class is only an inheritance of the Paginator:
class RoleCollection extends Paginator
{
}
The error message which I get is:
Cannot generate Zend\Expressive\Hal\HalResource for object of type ArrayObject; not in metadata map
I think you are missing the metadata for the Role object itself.
For example this is something similar for my posts object:
MetadataMap::class => [
[
'__class__' => RouteBasedCollectionMetadata::class,
'collection_class' => Posts::class,
'collection_relation' => 'posts',
'route' => 'api.posts',
],
[
'__class__' => RouteBasedResourceMetadata::class,
'resource_class' => Post::class,
'route' => 'api.posts.view',
'extractor' => ArraySerializable::class,
],
],
You have only described the collection and the resource class is missing for a single role.
I also see the resource generator tries to parse an ArrayObject. This should be wrapped in a Role object, which you can add to the MetadataMap.
Where it goes wrong in your code is this line:
$paginator = new RoleCollection(new DbSelect($select, $this->dbAdapter));
This adds the result of a query into the paginator, but the paginator does not know how to handle it. If I remember correctly, the DbSelect return a ResultSet. I'm guessing this is where the ArrayObject is coming from. What you probably need is to override that ResultSet and make sure it returns an array of Role objects. You might want to look into the dbselect adapter and the hydrating resultset.
Once you have the Role object in the paginator, you can describe it in the metadata.
[
'__class__' => RouteBasedResourceMetadata::class,
'resource_class' => UserRole::class,
'route' => 'api.roles',
'extractor' => ...,
],
I use doctrine myself with hal so zend-db is out of my scope. If you need more help, I suggest the zf forums.

Symfony3 Forms–obtain Form with choices, default data etc. as JSON

I have a Symfony3 Application setup and would like to rebuild the frontend based on React now.
One of the Entities is User and each of them can have one or more Groups so in the HTML form a list of Checkboxes appears, so the admin can select the groups attached to a User.
In UserType.php this looks like that:
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('username', TextType::class)
->add('password', TextType::class)
->add('email', EmailType::class)
->add('groups', EntityType::class, [
'class' => Group::class,
'choice_label' => 'name',
'expanded' => true,
'multiple' => true//,
//'data' => $builder->getData()->getGroups()
]);
}
To render the Form using React, it would be extremely handy to get a JSON response which could look like that:
{
"user": {
…
"groups": [<gid 1>, …]
"groups_available": [
{
"id": <gid 1>,
"name": …
},
…
]
}
}
So that the groups array contains all the ids of the groups, the user is attached to and groups_available a list of all available groups.
Right now I am using FOSRestBundle and in the Controller it looks like that:
public function getUserformAction($id=null)
{
//if the id is null, create a new user
//else get the existing one
…
$form = $this->createForm(UserType::class, $user);
$view = $form->createView();
return $this->handleView($view);
}
How can I do that?
you should try the following code:
->add('groups', EntityType::class, array(
//if Group is in AppBundle or use the required Bundle name
'class' => 'AppBundle:Group',
'query_builder' => function (EntityRepository $er) {
return $er->createQueryBuilder('u')
->orderBy('u.name', 'ASC')
},
'choice_label' => 'name',
'multiple' => true,
'expanded' => true,
));
You can also get a reference from here
After digging in the source and with the help of the debugger I could manage to do it in a more less robust and generic way like so:
protected function getFormStructure(Form $form)
{
return $this->iterateFormview($form->createView(), []);
}
private function iterateFormview(FormView $view, array $result)
{
foreach($view as $child) {
$vars = $child->vars;
$data = ['value' => $vars['value']];
if(isset($vars['choices'])) {
$data['choices'] = [];
foreach ($vars['choices'] as $choice) {
array_push($data['choices'], [
'label' => $choice->label,
'value' => $choice->value]);
}
}
$result[$vars['full_name']] = $data;
if(count($child) > 0) {
$result = $this->iterateFormview($child, $result);
}
}
return $result;
}
Result (as json):
{
…
"user[groups]":
{
"value": "",
"choices": [
{
"value": 100,
"label": "the name"
},
…
]
}
}
I guess this routine needs to be extended if I need to support more types… But for now this will do it.