如何将日期格式从yyyy / mm / dd更改为dd / mm / yyyy Ruby on Rails

Question

<div class="field2">
<%= f.label :shod_date, "Date of last shoeing" %><br />
<%= f.date_select :shod_date %>

Can someone please just tell me what codes to add and where i should add them. Also which commands i should run. Plus i want the initial year to date back further than 2007 because the start year starts at 2007 and ends at 2012

thank you.

Answer 1

Try this:

<%= f.date_select :shod_date,
    use_month_numbers: true,
    order: [:day, :month, :year],
    start_year: 2007,
    date_separator: "/" %>

Answer 2

使用shod_date.strftime（“％d-％m-％Y”）

Answer 3

You can change the date format using internationalisation (I18n)

Just add (or change) this in your config/locales/en.yml :

en:
  date:
    order:
      - :day
      - :month
      - :year

Note that this example is for english ( en ) locale, and you should replace en for your language.

Using i18n, all your date_select will be setted with this format. If you want change the order only in this point, use the attribute order: [:day, :month, :year] as @hirata-yasuyuki sugested.

To display only years between 2007 and current you can set two attributes: start_year and end_year to date_select helper.

And your code show looks like:

<%= f.date_select :shod_date, start_year: 2007, end_year: Time.now.year %>