Action View Date Helpers
The Date Helper primarily creates select/option tags for different kinds of dates and times or date and time elements. All of the select-type methods share a number of common options that are as follows:
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:prefix- overwrites the default prefix of “date” used for the select names. So specifying “birthday” would give birthday[month] instead of date[month] if passed to theselect_monthmethod.
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:include_blank- set to true if it should be possible to set an empty date.
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:discard_type- set to true if you want to discard the type part of the select name. If set to true, theselect_monthmethod would use simply “date” (which can be overwritten using:prefix) instead of date[month].