eachValidators.presence makes no sense for radio buttons

[kirel]

I worked around this with

# fix the presence validator for radio buttons
judge.eachValidators.presence = (options, messages) ->
  if $(@).is(':radio')
    judge.closed(if $("[name=\"#{@.name}\"]:radio:checked").length then [] else [messages.blank])
  else
    judge.closed(if @value.length then [] else [messages.blank])

for now. It should probably be solved with a more generic value = (elem) -> submitted_field_value function and then checking value(this) instead of this.value.length.

[joecorcoran]

Interested in your use case for this – what kind of data model checks for the presence of a radio button value? Feels like something that a default value in the database would fix, but I can't really comment without knowing the specifics.

[kirel]

Sometimes required choice (no default) is more appropriate. Otherwise you
nudge people into a default that might be inappropriate for them. See the
book Thaler - Nudge for details.

Interested in your use case for this – what kind of data model checks for
the presence of a radio button value? Feels like something that a default
value in the database would fix, but I can't really comment without knowing
the specifics.

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