Magento Admin Form – Add Value of ID Parameter to Field

adminforms

Using admin forms I would like to add a facility which will allow a user to upload an image and link it to some data held within other tables. My database is set up and my form is set up as required, unfortunately I have been unsuccessful in working out how to pass the id value from the url to the field on my form

How do I pass the id value from the url to the field on my form?

I have this

protected function _prepareForm()
{
    ....Other code here....

    $fieldset->addField('shop_id', 'hidden', array(
        'value'     => //unable to work out what command needs to be added,
        'name'      => 'shop_id',
    ));
}

Best Answer

Add this at the end of the form configuration

$form->addValues(array('shop_id'=>Mage::app()->getRequest()->getParam('shop_id')));

Or you can make the form submit to an url that has a get parameter named shop_id with the value of the shop id you need (I mean pass the get param shop_id to the page that handles the save action).

Related Solutions

Magento – field of type link in admin form is not rendering value

Your code works (almost) correctly.
The value of the link field is not shown because it is overwritten by $form->setValues(...).
Here is how Varien_Data_Form::setValues() works

public function setValues($values)
    {
        foreach ($this->_allElements as $element) { //for each element in the form
            if (isset($values[$element->getId()])) {//if there is a value in the values for the element set the value of that element.
                $element->setValue($values[$element->getId()]);
            }
            else {//if there is no value for the element set its value to null.
                $element->setValue(null);
            }
        }
        return $this;
    }

I recommend using $form->addValues(...); this one does not set to null the missing values in the parameter passed to it.

Magento – Return errors to form

It is better to tie the validate methods to the model. In your model you can include the validate method as follows:

public function validate() {
    $errors = array();

    if (!Zend_Validate::is($this->getFirstName(), 'NotEmpty')) {
        $errors[] = 'First name is needed';
    }

    if (!Zend_Validate::is($this->getLastName(), 'NotEmpty')) {
        $errors[] = 'Last name is needed';
    }

    if (!Zend_Validate::is($this->getDesignation(), 'NotEmpty')) {
        $errors[] = 'Designation is needed';
    }

    if (empty($errors)) {
        return true;
    }

    return $errors;
}

Then in the controller you can use it as follows:

if ($data = $this->getRequest()->getPost()) {

        $users = Mage::getModel('tableop/users')->setData($data);

        $session = Mage::getSingleton('tableop/session');

        $validate = $users->validate();         
        if ($validate === true) {

....etc

For the error and success messages part, you can use Mage::getSingleton('core/session')->addError or addSuccess methods. You can use your own session objects also.

For more information refer Mage/Review/controllers/ProductController.

Best Answer

Related Solutions

Magento – field of type link in admin form is not rendering value

Magento – Return errors to form

Related Topic