Question

所以我有一个编辑表格，其中包含年份开始和结束日期。我想将db存储的值显示为默认日期。

我试过这个

 <%= f.input :year_start_date, :label => 'Year Start Date', :as => :date_select, :include_blank => false,
                      :input_html => { :id => 'y_start_date'}, prompt: { day: year_start_date.day, month: Date::MONTHNAMES[year_start_date.month], year: year_start_date.year}, data: year_start_date %>

所以很好，并开始显示db存储值。

但问题是当我只改变月份时，参数将是

"year_start_date(1i)" => "",  "year_start_date(2i)" => "3",  "year_start_date(3i)" => ""

并且在控制器中正在做 [ school_params['year_start_date(1i)'], school_params['year_start_date(2i)'], school_params['year_start_date(3i)'] ].join('-').to_date

因为它包含空字符串，所以它会抛出无效的日期错误。

当没有选择任何内容时，我想要默认值（在本例中为日期和年份）。怎么做到这一点？

编辑1：

params

{
                "utf8" => "✓",
             "_method" => "patch",
  "authenticity_token" => "abcffdgfdgfgfgf==",
              "school" => {
                         "name" => "Test School",
                     "board_id" => "1",
    "board_registration_number" => "",
                    "subdomain" => "testschool",
                        "email" => "",
                      "website" => "",
                      "address" => "NA",
                         "city" => "NA",
                      "pincode" => "",
                   "country_id" => "1",
                "country_state" => "Tamil Nadu",
                        "phone" => "NA",
                     "inc_year" => "",
                   "handler_id" => "14451",
          "year_start_date(1i)" => "",
          "year_start_date(2i)" => "1",
          "year_start_date(3i)" => "",
            "year_end_date(1i)" => "",
            "year_end_date(2i)" => "",
            "year_end_date(3i)" => ""
  },
              "button" => "",
          "controller" => "sat/schools",
              "action" => "update",
                  "id" => "2"
}

Answer 1

您可以简单地使用浏览器提供的日期选择器，而无需添加额外的库，而不是使用丑陋的日期/日期时间输入：

f.input :year_start_date, :label => 'Year Start Date', as: :string, input_html: { type: "date" }

如何在date_select rails中设置和获取默认值

1 个答案: