Multiplying values from a textbox in Yii Framework - yii

i'm new to Yii and I'm trying to compute values from textboxes. I want the computation codes to be on the same form where the textbox is being displayed (since the product will also be shown on a textbox of the same form where they will input the factors). I've tried this guess, but it didn't work. How do I fix this problem?
<div class="row">
<?php echo $form->labelEx($model,'Quantity_In_Pieces'); ?>
<?php echo $form->textField($model,'Quantity_In_Pieces',array('Quantity_In_Pieces' => ('Quantity').val() * ('Hold').val());?>
<?php echo $form->error($model,'Quantity_In_Pieces'); ?>
</div>

As i understood, you need to add the textField on your ActiveForm and to set its value calculated from two another textfields. In this case you should use Chtml::textfield(...) with value = ($model->Quantity) * ($model->Hold). I mean smth like
echo Chtml::textField('Quantity_In_Pieces', ($model->Quantity) * ($model->Hold));

Related

Yii radioButtonList: radio button and item description are in separate lines

I've defined a radio button list in Yii as following:
<?php echo $form->radioButtonList($model, 'send_option', $email_exist); ?>
Here $email_exist variable is set in the controller.
The problem is radio button is in one line and item description is in another line. I want both are in the same line.
Any suggestions are appreciated.
Thank you in advance
Try to use template option , this example for checkBoxList:
<ul>
<?php echo CHtml::checkBoxList('checkBoxList','',$data, array(
'id'=>'checklist',
'name'=>'checklist',
'template'=>'<li>{input} {label}</li>',
));?>
</ul>
Note: it's same with radioButtonList

Showing a specific attribute when generating CRUD in Yii web framwork using giix extenstion

I am generating Models and CRUD for my database tables using giix in YII web framework, the thing is I want to change some of the attributes that showed to me but I dont know how ? I get into the code _FORM.php of the generated CRUD to one of the table and I knew the piece of code that I must change it to get a different attribute instead of one that shown to me without knowing why ?
<div class="row">
<?php echo $form->labelEx($model,'idEmployee'); ?>
<?php echo $form->dropDownList($model, 'idEmployee', GxHtml::listDataEx(Employee::model()->findAllAttributes(null, true))); ?>
<?php echo $form->error($model,'idEmployee'); ?>
</div><!-- row -->
in the previous code the form showed a drop-down list from another table jointed with the current table according to idEmployee, he's showing an attribute that I dont want, I want to know how to render the FirstName and the LastName in the drop-down list, any help please ?
I believe it is easier when you just create your own dropdown list provider
in the Employee.php you add these two functions:
public function getFullName()
{
return $this->first_name.' '.$this->last_name; // or what ever you want to be shown on the drop list
}
public static function getNamesList() {
return CHtml::listData(self::model()->findAll(), 'idEmployee', 'fullName');
}
in the _FORM.php write:
<div class="row">
<?php echo $form->labelEx($model,'idEmployee'); ?>
<?php echo $form->dropDownList($model, 'idEmployee', Employee::getNamesList()); ?>
<?php echo $form->error($model,'idEmployee'); ?>
</div><!-- row -->

Yii: How to populate a Select input with another model data?

I'm playing around with a small app in order to learn to use Yii.
I've created a small webapp with 2 models / tables: Projects and tasks. (1-to-many relationship, properly configured in the model classes).
I'm now trying to customize the Task/create view, replacing the text input field with a select box proposing the list of available projects.
I opened the form view and tried this:
<div class="row">
<?php echo $form->labelEx($model,'project_id'); ?>
<?php echo $form->textField($model,'project_id'); ?>
<?php
// my hack starts here
$projects = Project::model()->findAll();
$list = CHtml::listData($projects, 'id', 'name');
echo $form->listBox($model,'project_id','', $list); ?>
// my hack ends here
<?php echo $form->error($model,'project_id'); ?>
</div>
But it keeps throwing warnings or error (such as Invalid argument supplied for foreach(), and definitely does not work. I'm failing to understand what i'm doing wrong. Can you help ?
Your arguments are not in order (it should be):
$frameworks = Framework::model()->findAll();
$list = CHtml::listData($frameworks, 'id', 'name');
echo $form->listBox($model,'framework_id', $list,array());
Check the documentation
OK, i found it, thanks to Larry Ullman excellent tutorial.
Here it is:
<?php echo $form->dropDownList($model,'project_id', CHtml::listData(Project::model()->findAll(), 'id', 'name')); ?>

Multiplying values from a textbox in Yii

I'm new to Yii, and I'm trying to compute values from textboxes. I want the computation codes to be on the same form where the textbox is being displayed (since the product will also be shown on a textbox of the same form where they will input the factors). I've tried this guess, but it didn't work. How do I fix this problem?
<div class="row">
<?php echo $form->labelEx($model,'Quantity_In_Pieces'); ?>
<?php echo $form->textField($model,'Quantity_In_Pieces',array('Quantity_In_Pieces' => ('Quantity').val() * ('Hold').val());?>
<?php echo $form->error($model,'Quantity_In_Pieces'); ?>
</div>
seems like you are trying to write jQuery where there should be php code.
<?php echo $form->textField($model,'Quantity_In_Pieces',array('Quantity_In_Pieces' => $model->quantity * $model->hold);?>

Saving a checkbox value in Yii

I can't figure out how to properly save checkbox values in Yii. I have a MySQL column, active, defined as a tinyint. I have the following form creation code, which correctly shows the checkbox as checked if the value is 1 and unchecked if 0:
<?php echo $form->labelEx($model,'active'); ?>
<?php echo $form->checkBox($model,'active'); ?>
<?php echo $form->error($model,'active'); ?>
And the code to save the form correctly changes other, text-based values:
public function actionUpdate($id)
{
$model=$this->loadModel($id);
if(isset($_POST['Thing']))
{
$model->attributes=$_POST['Thing'];
if($model->save())
$this->redirect(array('thing/index'));
}
$this->render('update',array(
'model'=>$model,
));
}
The value of active is not saved. Where am I going wrong?
You can use htmlOptions array to specify value attribute. Below is the code example:
<?php echo $form->labelEx($model,'active'); ?>
<?php echo $form->checkBox($model,'active', array('value'=>1, 'uncheckValue'=>0)); ?>
<?php echo $form->error($model,'active'); ?>
Since version 1.0.2, a special option named 'uncheckValue' is
available that can be used to specify the value returned when the
checkbox is not checked. By default, this value is '0'.
(This text is taken from YII Documenration)
For every input that you are accepting from user, you need to define it in model::rule(). is active defined there in rule()?
In general, if you are having problems saving to the database, i would replace
$model->save();
with
if($model->save() == false) var_dump($model->errors);
that way, you can see exactly why it did not save. it is usually a validation error.
Please follow:
1. in protected/models/Thing.php add active as a numeric
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
array('active', 'numerical', 'integerOnly'=>true),
//OR optional
array('active', 'safe'),
);
}
Controller action: Its ok
View:
<?php echo $form->labelEx($model,'active'); ?>
<?php echo $form->checkBox($model,'active', array('value'=>1, 'uncheckValue'=>0)); ?>
<?php echo $form->error($model,'active'); ?>
Hope this will work for you...
Article which can be helpful when figuring out how to handle booleans & checkboxes in Yii
http://www.larryullman.com/2010/07/25/handling-checkboxes-in-yii-with-non-boolean-values/
I used a bit type field in my DB and it didn't work.
1.- I changed the field type to tinyint
2.- In the rules function added:
array('active','numerical'),
3.-In the form (as D3K said) do:
<?echo $form->checkBox($model,'active',array('value'=>1, 'uncheckValue'=>0));?>
You can check by printing all the attributes which are being captured. If active is not captured, it must not be safe. you need to declare the variable as safe or define a rule around that variable. This will make the variable safe.
I have similar the same problemce before,I change data type is int,so it save
We can also add a rule as safe in model to pass the values from form to controller without missing.
array('active', 'safe'),
well this post is so old but I've found a solution very useful specially for giving checkbox a value specified rather than number. The new syntax is something like this
notice I'm using ActiveForm
field($model3, 'External_Catering')->checkbox(['id' => 'remember-me-ver', 'custom' => true,'value'=>"External_Catering", 'uncheckValue'=>"vide"]) ?>
1) where my model is =>model3
2) with the name External_Catering
3) that take the value External_Catering and empty when it's uncheckValue
4) in Controller you get the value just by specifying the model and it's attribute like
  $External_Catering=$model3->External_Catering.