Question

Is it possible to create model rules that are dependent from selection?

I have a model “Deposit” which is used to enter the money transfer details..I have drop down list with two possible choices “Cash Transfer”,”Cheque Transfer”, and i have fields cash_deposit_date,bank_name.. which is required only for cash transfer and cheque_date, cheque_no and in_favour_of.. which is required only at the time of cheque transfer.. how can i do that..?

I know i can use scenarios like this,

$model=new Deposit("cash_transfer");

or

$model=new Deposit("cheque_transfer");

but how can I change scenario depending on the value selected in dropdown list?

Answer 1

Couldn’t you just do this:

Generated HTML:

<form>
....
<select name="scenario">
    <option value="cash_transfer">Cash Transfer</option>
    <option value="cheque_transfer">Checque Transfer</option>
</select>
....
</form>

Code:

// allow only lowercase letters and underscore
$scenario = preg_replace('/[^a-z_]/', '', $_POST['scenario']);

if (!empty($scenario)) {
    $model = new Deposit($scenario);
} else {
    die('Missing scenario!');
}