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Given a radio button like so:
<%= radio_button_tag 'permission[role_id]', '2' %> How can I make the radio buttons checked status condition. To only be checked if @permission.role_id.nil? or if @permission.role_id == 2?
I tried:
<%= radio_button_tag 'permission[role_id]', '2', @permission.role_id.nil? ? {:checked => true} : {:checked => false} %> Thanks
858
You can check a radio button by default by adding the checked HTML attribute to the <input> element. You can disable a radio button by adding the disabled HTML attribute to both the <label> and the <input> .
To find the selected radio button, you follow these steps: Select all radio buttons by using a DOM method such as querySelectorAll() method. Get the checked property of the radio button. If the checked property is true , the radio button is checked; otherwise, it is unchecked.
Radio buttons are normally presented in radio groups (a collection of radio buttons describing a set of related options). Only one radio button in a group can be selected at the same time. Note: The radio group must have share the same name (the value of the name attribute) to be treated as a group.
Use document. getElementById('id'). checked method to check whether the element with selected id is check or not. If it is checked then display its corresponding result otherwise check the next statement.
The documentation for radio_button_tag says that checked isn't an options hash parameter, it's just a normal one:
radio_button_tag(name, value, checked = false, options = {}) So, you need to do this:
<%= radio_button_tag 'permission[role_id]', '2', !!(@permission.role_id.nil? || @permission.role_id == 2) %> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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