Preserve checkbox state on Rails form validation error

Question

I'm having a checkbox which is only used to display an optional input field with JS. When submitting the form, but the value of this field fails validation, it displays the error message but not the field (because of the reload). So I would need to click the checkbox again, to actually show the field. Is there any way how I can preserve the checkbox checked after submitting the form and failing.

Thanks

Mihails Butorins · Accepted Answer · 2016-01-08 12:56:05Z

1

Of course implementation can be different from how you implement the form, but general solution is to pass conditions to the checkbox checked attribute

= check_box_tag "show_hidden_field", nil, f.object.errors[:field_name].present?

answered Jan 8, 2016 at 12:56

Mihails Butorins

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