Label changes depending on scenario

Yii 1.1 General Discussion
1

I have a model that I use for two different but similar uses. The model is used for job opportunities and for students to post a brief description of themselves and qualifications. Rather than make two different tables and two different models, I just added a field to indicate that the posting was a student post (type = 0) or employer post (type = 1).

I create the two posts in two different controller functions




public function actionStudentPost()

	{

		$model=new Posting('student');

                $model->type = 0;

                $model->location ="I am willing to re-locate";

///

$model=new Posting('employer');

                $model->type = 1;

                $model->location ="Various";

So I will be creating a ‘Posting’ with scenario of ‘student or employer’ two of the field values are already defined when the application displays the form but I also want to change the labels on the form rather than call two different forms.

In my model I check the scenario and assign labels.


public function attributeLabels()

	{

            switch($this->scenario){

             case 'student':

             return array(

			'id' => 'ID',

			'display' => 'Display',

			'type' => 'Type',

			'creationDate' => 'Creation Date',

			'updateDate' => 'Update Date',

			'area' => 'My area of interest/expertise',

                        'title'=>'Name and Education',

			'details' =>'Some information about me',

			'location' =>'This is where I would like to live',

			'email' => 'My Contact Email',

		);


             break;


             default: // employers end up here

             return array(

			'id' => 'ID',

			'display' => 'Display',

			'type' => 'Type',

			'creationDate' => 'Creation Date',

			'updateDate' => 'Update Date',

			'area' => 'Area of expertise required',

                        'title'=>'Breif description of opportunity',

			'details' =>'Opportunity details',

			'location' =>'Geographic location of opportunity',

			'email' => 'Contact Email',

		);

            break;

            }


	}

This all works perfectly but is it a hack? is there a better way to use Yii when these are the desired results?

I have found a few other posts that ask similar questions but no answers were provided is the scenario ‘ON’ only used in the rules?

doodle

2

This is fine, and it is one of the reasons why we use attributeLabels() instead of $attributeLabels because the former allows you to dynamically return the needed labels. You may treat scenario as a state of the model instance, based on which you can do things besides validations.

3

OK thanks, so in my view (_form) the following code dumps out the array of attribute labels based on my current scenario which is being specified in the controller.


CVarDumper::dump($model->attributeLabels());

And I understand that the attributeLabels() method is returning the values defined within.

Is there any way to change the labels on the fly?

like


$model->attributes->label('location') = 'This is my planet of choice';

FWIW I’m only asking if you can do this not that I think it is something that we should be able to do although it could help in the case of EAV tables for example.

doodle

4

This solution is what i was looking for. For me this is however not working (Yii 1.1.14). I create the model in my controller

// Controller


$model = new Arbeiten("myScenario");

When i output the scenario in my view it is displayed as i wished

// view


echo $model->scenario // myScenario

When i try to ask in my model for the scenario, there is nothing


public function attributeLabels() {

        var_dump($this->scenario);

... // string(0)

Did i miss something? Did anything change so i cannot check the scenario in the model any more?

Thanks for any help!

5

check this wiki

i hope it’s some help.

6

I think it’s just because ‘scenario’ can be empty for some occasions. :)

7

Thanks for the Hints. I found the solution: I used Giix, and with this extions the solution above is not working!

8

I’ve just came across the same problem as well. GxActiveRecord overrides getAttributeLabel() method with getRelationLabel() which uses static model of the class thus the scenario is empty.

To solve this I used the original CActiveRecord::getAttributeLabel method in the model.


public function getAttributeLabel($attribute) {

	return CActiveRecord::getAttributeLabel($attribute);

}