datetime_select(オブジェクト名, メソッド名 [, オプション or HTML属性 or イベント属性])
f.datetime_select(メソッド名 [, オプション or HTML属性 or イベント属性])
datetime_select :page, :updated_at
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
datetime_select :page, :updated_at, use_month_numbers: true
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
datetime_select :page, :updated_at, use_short_month: true
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
datetime_select :page, :updated_at, add_month_numbers: true
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
datetime_select :page, :updated_at, start_year: 2012, end_year: 2013, minute_step: 10
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2010">2010</option>
--- 省略 ---
# </select>
f.datetime_select :updated_at
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
f.datetime_select :updated_at, use_month_numbers: true
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
f.datetime_select :updated_at, use_short_month: true
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
f.datetime_select :updated_at, add_month_numbers: true
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2006">2006</option>
--- 省略 ---
# </select>
f.datetime_select :updated_at, start_year: 2012, end_year: 2013, minute_step: 10
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <select id="page_updated_at_1i" name="page[updated_at(1i)]">
# <option value="2010">2010</option>
# <option selected="selected" value="2011">2011</option>
--- 省略 ---
# </select>