I have a model "Product" that I would like to modify or "mutate" one of its attributes for, but only in specific instances.
I store attribute, price as an integer. So $1.99 gets stored as 199.
I would like to incorporate this with the activeForm in such a way that when getting the price it converts to "1.99" in the field (visually). But when I submit the form, before validation, it modifies the price from "1.99" to "199".
I'm assuming this will require Behaviors, and specifically attaching a behavior to the model before creating the active form. However, I'm still confused on how to set this up. I see there is an AttributeBehavior class or I can make my own Behavior class, but I've been having trouble figuring out implementation in this case.
The situation:
foreach ($store_item->storeProducts as $i=>$product) {
?>
<tr>
<td>
<?= $form->field($product, '['.$i.']price')->label(false); ?>
</td>
</tr>
<?php
$i++;
}
?>
Here is a scenario where I check for empty attribute and assign value before saving. Note owner returns the Model so that you can access model attributes and functions that are public. Let me know if I can explain anything further
public function behaviors()
{
return [
[
'class' => AttributeBehavior::className(),
'attributes' => [
ActiveRecord::EVENT_BEFORE_INSERT => 'yourAttrib',
],
'value' => function ($event) {
$code = "N/A";
if(!empty($this->owner->yourAttrib))
{
$code = $this->owner->yourAttrib; //here change your attribute accordingly
}
return $code;
},
],
//other behaviors
];
}
You could simply use a getter/setter, e.g. :
public function getRealPrice()
{
return $this->price/100;
}
public function setRealPrice($value)
{
$this->price = $value*100;
}
And don't forget to :
add realPrice in your model's rules,
use realPrice in your form (instead of price).
Related
I need to check if a model has been updated and what attributes have changed when saving.
I'm using dirtyAttributes and filter intval as the docs suggests.
The values are coming from an API and are type-cast as they come in, so in theory the filter is redundant.
Model rules
public function rules()
{
return [
[['contract_date', 'order_date'], 'integer'],
[['contract_date', 'order_date'], 'filter', 'filter' => 'intval'],
];
}
This is some of the code currently running:
// Add the changed status variables to the job log
$dirty_attributes = array_keys($model->dirtyAttributes);
if($model->save()) foreach ($dirty_attributes as $attribute)
{
$data[$attribute] = $model->getOldAttribute($attribute).' ('.gettype($model->getOldAttribute($attribute)).')'. ' => '. $model->$attribute.' ('.gettype($model->$attribute).')';
}
var_dump($data);
This produces:
["contract_date"]=>
string(44) "1559669638 (integer) => 1559669638 (integer)"
["order_date"]=>
string(44) "1559669638 (integer) => 1559669638 (integer)"
There is probably something obvious I'm missing, but I can understand what.
After saving model all "oldAttributes" are updated to store new values so comparing them like you do makes no sense. If you want to check which attributes have been changed after saving you can override afterSave() method in your model like:
public function afterSave($insert, $changedAttributes)
{
// $changedAttributes -> this is it
parent::afterSave(); // call parent to trigger event
}
or listen for ActiveRecord::EVENT_AFTER_INSERT / ActiveRecord::EVENT_AFTER_UPDATE event where this data is also passed.
I am new to Yii2 and I have 3 kind of user rights:
Admin, moderator and user. I have my GridView and I don't want to show for the user the Update and Delete buttons, just only the GridView. How should I do that?
Here is my actionCreate, there is an input form:
public function actionCreate()
{
$model = new Project();
$model->scenario = Project::SCENARIO_CREATE;
if ($model->load(Yii::$app->request->post())) {
if ($model->save()) {
Yii::$app->getSession()->setFlash('success', Yii::t('app', 'Skelbimas sėkmingai pridėtas!'));
return $this->redirect(['index']);
}
}
return $this->render('create', [
'model' => $model,
]);
}
I've tried to search the information according to this, but couldn't find useful ones. Thanks for any help or information.
To accomplish this, you have to use the property $visibleButtons of you ActionColum class.
So:
'visibleButtons' = [
'update' => Yii::$app->user->can('update'), // or whatever condition
'delete' => Yii::$app->user->can('update')
]
and so on. Each Key on the visibleButtons array is the name of the button.
Yii Framework's guide
.........
[
'class'=>'yii\grid\ActionColumn',
'template'=> '{view} {update} {delete} ',
'buttons'=> [
'update'=> function($url,$model) {
if (Yii::$app->user->can('admin')) {
returnHtml::a( '<span class="glyphicon glyphicon-pencil"></span>', $url);
}
},
'delete'=>function($url,$model,$key) {
if (Yii::$app->user->can('admin')) {
returnHtml::a('delete', $url);
}
},
],
],
One possibility would be using the 'template' attribute of youe 'ActionColumn' like:
[
...
'template'=> (user has only user rights ? '{view}' ? '{view} {update} {delete}')
...
]
Please, bare in mind that even though this solution will hide the buttons for users with only user right, it won't prevent them of accessing update and delete action urls, so you have to check permissions also in the controller level.
In a projects/create active form I have a field "related company account" as a dropdown (select2 by kartik). Behind this field I'd like to place a plus sign or something else to add new accounts to the dropdown with the following behavior:
gather all input done so far (like $input = compact(array_keys(get_defined_vars())); but probably needed on client side)
jump to accounts/create and pass $input
after submiting the new account jump back to projects/create (e.g. return $this->redirect(Yii::$app->request->referrer);) and fill the previously entered data (extract($input, EXTR_PREFIX_SAME, "arr");)
I'm struggling now with several issues:
Is this process according to best practice or should I change something fundamentally?
How is the button like? Submit button, link or some form of javascript?
Problem with Submit button is that not all required fields may be filled. So saving and resuming/updating the project model might not be possible.
Problem with link is that it is constructed before data was entered
Problem with javascript is that I have no glue
Any hints are welcome. Thank you in advance.
One alternative i would suggest is using Session.
As for the "Add Accounts" button, i would use Submit button, and give different name to actual Submit button (two submit button in form, as answered in here). So, the projects/create view will look like this :
<?php $form = ActiveForm::begin(); ?>
...
...
...
<?= $form->field($model, 'account_id')->widget(Select2::classname(), [
'data' => ArrayHelper::map(Account::find()->all(), "id", "name"),
'options' => ['placeholder' => 'Select a related company account ...'],
'pluginOptions' => [
'allowClear' => true
],
]) ?>
<?= Html::submitButton('Add Account ;)', ['class' => 'btn btn-success', 'name' => 'add_account_submit']) ?>
...
...
...
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
And then check in ProjectsController, which submit button pressed by user. If add account was pressed, then save the inputed field (i would put this function in model for clearance), else, save the model or anything. And, before all that, check if session about project is set, if yes then pre-load it to model (again, in model). Okay, like they say, one code is worth a thousand words, so, this is ProjectsController will look like :
class ProjectsController extends Controller
{
...
...
...
public function actionCreate($category)
{
$model = new Projects();
if (Projects::isSavedInSession()) {
$model->loadFromSession();
}
if (Yii::$app->request->post('add_account_submit')) { // if add_account_submit is clicked
$model->saveTosession(Yii::$app->request->post('Projects')); // I assume your model named Projects, if not, change this value to your model name
return $this->redirect(['accounts/create']);
}
if ($model->load(Yii::$app->request->post()) && $model->save()) {
$model->clearSession(); // we dont need the session anymore
return $this->redirect(['index');
}
return $this->render('create', [
'model' => $model,
]);
}
...
...
...
}
And Projects model will look like :
class Projects extends \yii\db\ActiveRecord
{
...
...
...
public static function isSavedInSession() { // why this is static is beyond this question context
if (Yii::$app->session->get('projects')) return true;
return false;
}
public function loadFromSession() {
if (Yii::$app->session->get('projects_name')) $this->name = if (Yii::$app->session->get('projects_name'));
if (Yii::$app->session->get('projects_account_id')) $this->account_id = if (Yii::$app->session->get('projects_account_id'));
...
... // insert all model's field here
...
}
public function saveToSession($fields) {
Yii::$app->session->set('projects', 1);
foreach ($fields as $field=>$value) {
Yii::$app->session->set('projects_' . $field, $value);
}
}
public function clearSession() {
Yii::$app->session->remove('projects'));
Yii::$app->session->remove('projects_name'));
Yii::$app->session->remove('projects_account_id'));
...
... // insert all model's field here
...
}
...
...
...
}
And in the AccountsController, just tell the program to jump back to projects/create if projects session is set, like so :
class AccountsController extends Controller
{
...
...
...
public function actionCreate($category)
{
$model = new Accounts();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
if (Projects::isSavedInSession()) {
return $this->redirect(['projects/create');
}
return $this->redirect(['index');
}
return $this->render('create', [
'model' => $model,
]);
}
...
...
...
}
Well, it's looks bit lengthy, but yeah, it's worth trying. Anyway, you could use this approach for another purpose, save current form state for example.
Oh, one more thing, i haven't tested this in real code, so if any error exposed on my code, hit me up in comment.
Happy coding. :)
I have a Model who has a column (attribute) that stored a comma separated value of IDs.
For Example,
Movie has a column "Genre" that includes more than one genre, e.g.: 40,20,1,3
How can I use Select2 widget to show these values separated when 'multiple' => true
And how can I save them back into comma-separated value as a string. I want a solution that will allow for quick flexibility. I know you can implode and explode the string but seems too much.
Any help appreciated
If I remember correctly pass the default option as part of the $options configuration for the widget:
echo $form->field($model, 'model_attribute_name')->widget(Select2::className(), [
'data' => $data
'options' => [
'class' => 'form-control',
'placeholder' => 'Choose Option...',
'selected' => 40
],
'pluginOptions' => [
'allowClear' => true,
],
])->label('Select2 Form Field');
This is from memory for grain fo salt here. The documentation at http://demos.krajee.com/widget-details/select2 is not very specific about how to do this.
I don't believe you can do that. Select2 sends the data in post as an array, so you would still need to use implode before saving. What i would do instead is in your model class:
class MyModel extends \yii\db\ActiveRecord {
$public myArrayAttribute;
...
public function beforeSave($insert) {
if (parent::beforeSave($insert)) {
$this->myAttribute = implode(',', $this->myArrayAttribute);
return true;
}
return false;
}
public function afterFind() {
parent::afterFind();
$this->myArrayAttribute = explode(',', $this->myAttribute);
}
}
This way myArrayAttribute will hold the values from the comma separated field as an array. Of course you will need to add validation rules for it and use it instead of your other attribute in create and update forms.
if you're displaying a form with already populated fields, maybe you want to update an already existing object, and you want to display the already saved value for the Select2 field, use 'data' => [ 1 => 'Some value' ], where 1 is the value, associated to the value displayed in the form. You can retrieve stuff to put in data from DB beforehand.
Source: https://github.com/kartik-v/yii2-widget-select2/issues/37
In Yii2 I'm trying to construct hidden input
echo $form->field($model, 'hidden1')->hiddenInput()->label(false);
But I also need it to have some value option, how can I do that ?
Use the following:
echo $form->field($model, 'hidden1')->hiddenInput(['value'=> $value])->label(false);
Changing the value here doesn't make sense, because it's active field. It means value will be synchronized with the model value.
Just change the value of $model->hidden1 to change it. Or it will be changed after receiving data from user after submitting form.
With using non-active hidden input it will be like that:
use yii\helpers\Html;
...
echo Html::hiddenInput('name', $value);
But the latter is more suitable for using outside of model.
simple you can write:
<?= $form->field($model, 'hidden1')->hiddenInput(['value'=>'abc value'])->label(false); ?>
You can do it with the options
echo $form->field($model, 'hidden1',
['options' => ['value'=> 'your value'] ])->hiddenInput()->label(false);
you can also do this
$model->hidden1 = 'your value';// better put it on controller
$form->field($model, 'hidden1')->hiddenInput()->label(false);
this is a better option if you set value on controller
$model = new SomeModelName();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->group_id]);
} else {
$model->hidden1 = 'your value';
return $this->render('create', [
'model' => $model,
]);
}
Like This:
<?= $form->field($model, 'hidden')->hiddenInput(['class' => 'form-control', 'maxlength' => true,])->label(false) ?>
You can use this code line in view(form)
<?= $form->field($model, 'hidden1')->hiddenInput(['value'=>'your_value'])->label(false) ?>
Please refere this as example
If your need to pass currant date and time as hidden input :
Model attribute is 'created_on' and its value is retrieve from date('Y-m-d H:i:s') ,
just like:"2020-03-10 09:00:00"
<?= $form->field($model, 'created_on')->hiddenInput(['value'=>date('Y-m-d H:i:s')])->label(false) ?>
<?= $form->field($model, 'hidden_Input')->hiddenInput(['id'=>'hidden_Input','class'=>'form-control','value'=>$token_name])->label(false)?>
or
<input type="hidden" name="test" value="1" />
Use This.
You see, the main question while using hidden input is what kind of data you want to pass?
I will assume that you are trying to pass the user ID.
Which is not a really good idea to pass it here because field() method will generate input
and the value will be shown to user as we can't hide html from the users browser. This if you really care about security of your website.
please check this link, and you will see that it's impossible to hide value attribute from users to see.
so what to do then?
See, this is the core of OOP in PHP.
and I quote from Matt Zandstr in his great book PHP Objects, Patterns, and Practice fifth edition
I am still stuck with a great deal of unwanted flexibility, though. I rely on the client coder to change a ShopProduct object’s properties from their default values. This is problematic in two ways. First, it takes five lines to properly initialize a ShopProduct object, and no coder will thank you for that. Second, I have no way of ensuring that any of the properties are set when a ShopProduct object is initialized. What I need is a method that is called automatically when an object is instantiated from a class.
Please check this example of using __construct() method which is mentioned in his book too.
class ShopProduct {
public $title;
public $producerMainName;
public $producerFirstName;
public $price = 0;
public function __construct($title,$firstName,$mainName,$price) {
$this->title = $title;
$this->producerFirstName = $firstName;
$this->producerMainName = $mainName;
$this->price = $price;
}
}
And you can simply do this magic.
$product1 = new ShopProduct("My Antonia","Willa","Cather",5.99 );
print "author: {$product1->getProducer()}\n";
This produces the following:
author: Willa Cather
In your case it will be something semilar to this, every time you create an object just pass the user ID to the user_id property, and save yourself a lot of coding.
Class Car {
private $user_id;
//.. your properties
public function __construct($title,$firstName,$mainName,$price){
$this->user_id = \Yii::$app->user->id;
//..Your magic
}
}
I know it is old post but sometimes HTML is ok :
<input id="model-field" name="Model[field]" type="hidden" value="<?= $model->field ?>">
Please take care
id : lower caps with a - and not a _
name : 1st letter in caps