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date_select with both discard_day and include_blank may be broken in 3.2 #4633

hab opened this Issue · 3 comments

3 participants


I have a regression between Rails 3.1 and 3.2 that appears to be introduced by pull request #2086.

I have a form with a date_select like this:

   date_select 'bill', 'payment_month', discard_day: true, include_blank: true

In Rails 3.1 that worked fine as the multi-parameter conversion in ActiveRecord automatically added a 1 (one) for each missing parameter. However, Rails 3.2 (with pull request #2086) changed this behaviour to return nil if any of the multi-parameters were missing. That effectively means that it is no longer possible to use the above combination.

The date_select will provide a default day-value in a hidden field only if include_blank is false. A possible solution may be to change this behaviour to always add hidden fields with default values regardless of the include_blank parameter as it would simply be discarded now.

Ruby on Rails member

Could you try to add a falling test or open a pull request?


I am not entirely sure where I should add a failing unit test. It is the combination of date_select and the multi-parameter conversion that fails for me.

The easy fix for my case would be to change date_select to add a value to the hidden day parameter but that would change a behavior that has not changed in years.

Can you give me a hint on what you would like to see?

Ruby on Rails member

This issue is related with #4553. I'm taking a look in this

@rafaelfranca rafaelfranca added a commit to rafaelfranca/omg-rails that referenced this issue
@rafaelfranca rafaelfranca Fix date_select with discard_month and discard_year options
Closes #4553 and #4633
@josevalim josevalim closed this
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