Checkbox field in "Profile" form will not save negative value

[anton-mellit]

I created a user field associated with input of type checkbox on the "login" form and the "profile" form.

If I uncheck the checkbox on the profile form, the new value it is not saved in the data file.

[ricardo118]

Im not sure I understand the question, do you have any screenshots of what's happening?

[anton-mellit]

Sorry, let me explain. In config/plugins/login.yaml I have

user_registration:
  enabled: true
  fields:
    - username
    - password
    - email
    - fullname
    - timezone
    - digest_allowed

I have a profile page pages/12.profile/profile.md with

form:
  fields:
    avatar_img:
      type: avatar

    username:
      type: text
      readonly: true
      disabled: true

    fullname:
      type: text
      validate:
        required: true

    email:
      type: email
      placeholder: "Enter your email"
      validate:
        required: true
        message: PLUGIN_LOGIN.EMAIL_VALIDATION_MESSAGE

    timezone:
        name: timezone
        label: 'Time zone'
        placeholder: 'Select time zone'
        type: select-timezone
        set_from_browser: true
        validate:
            required: true

    digest_allowed:
        label: 'Subscribe to the weekly digest'
        type: checkbox

Now when the user ticks the "Subscribe to the weekly digest" checkbox, submits the form, the value digest_allowed: '1' is stored in his accounts/{username}.yaml file. But when the user unticks this checkbox, nothing is done, the value in accounts/{username}.yaml remains digest_allowed: '1'.

Expected behavior: the value should change to digest_allowed: '0' or digest_allowed: null or digest_allowed: false

[ricardo118]

try adding to the checkbox

validate:
    type: bool

[anton-mellit]

Thank you, that did it!