Checkbox radio buttons with mandatory selection

Question

Checkbox radio buttons with mandatory selection

I'm facing a challenge with radio buttons in my form. While checkboxes could easily solve this issue, the customer specifically requested radio buttons.

Here is the relevant section of the form:

<label>
    <span>I Agree*</span>
    <input type="radio" name="privacy_1" value="1" ng-model="ctrl.utente.privacy_1" ng-required="!ctrl.isValidPrivacy()"/>
</label>
<label>
    <span>I Disagree</span>
    <input type="radio" name="privacy_1" value="0" ng-model="ctrl.utente.privacy_1"/>
</label>

Accompanied by the corresponding JS code:

self.isValidPrivacy = function () {
    return (!self.utente.privacy_1 || self.utente.privacy_1 == 0) ? false : true;
};

and the condition ctrl.utente.privacy_1 needs to be equal to 1.

Despite attempts like

ng-required="ctrl.utente.privacy_1 != 1"

or

ng-required="!ctrl.utente.privacy_1

(by removing value="0" from the second radio input), I have yet to find a solution.

The validation error for ctrl.utente.privacy_1 == 0 does not appear, and it cannot be selected as the default option (ctrl.utente.privacy_1 cannot be false by default).

None of the answers on StackOverflow have successfully resolved my issue so far.

javascript angularjs forms ng-required

Answer 1

Answer №1

It seems that your understanding of certain concepts may be a bit confused...

Instead of using a ternary operator to distinguish between true and false, you can simply return the result of the comparison like this:

return (!self.user.privacy_1 || self.user.privacy_1 == 0);

Furthermore, there is no need for a separate function to check this condition; you can directly evaluate the attribute since it involves a straightforward check:

<... ng-required="!$ctrl.user.privacy_1 || $ctrl.user.privacy_1 == 0" .../>

In addition, I am not sure why you are utilizing ng-required in this context. It appears that you might have misunderstood its intended use. ng-required is typically used to mandate user input in a form field, rather than checking its value as you seem to be attempting. If you only want to ensure that the user selects one of two options, simply utilize the 'required' HTML attribute on both inputs, and that will suffice.

<label>
    <span>I Agree*</span>
    <input type="radio" name="privacy_1" value="1" ng-model="ctrl.user.privacy_1" required />
</label>
<label>
    <span>I Disagree</span>
    <input type="radio" name="privacy_1" value="0" ng-model="ctrl.user.privacy_1" required />
</label>

Answer 2

It seems that your understanding of certain concepts may be a bit confused...

Instead of using a ternary operator to distinguish between true and false, you can simply return the result of the comparison like this:

return (!self.user.privacy_1 || self.user.privacy_1 == 0);

Furthermore, there is no need for a separate function to check this condition; you can directly evaluate the attribute since it involves a straightforward check:

<... ng-required="!$ctrl.user.privacy_1 || $ctrl.user.privacy_1 == 0" .../>

In addition, I am not sure why you are utilizing ng-required in this context. It appears that you might have misunderstood its intended use. ng-required is typically used to mandate user input in a form field, rather than checking its value as you seem to be attempting. If you only want to ensure that the user selects one of two options, simply utilize the 'required' HTML attribute on both inputs, and that will suffice.

<label>
    <span>I Agree*</span>
    <input type="radio" name="privacy_1" value="1" ng-model="ctrl.user.privacy_1" required />
</label>
<label>
    <span>I Disagree</span>
    <input type="radio" name="privacy_1" value="0" ng-model="ctrl.user.privacy_1" required />
</label>

Checkbox radio buttons with mandatory selection

Answer №1

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