html - 如何更改所需错误消息的语言？

Question

我使用 Ruby on Rails 创建了应用程序。一切都是英文的，但是当我在字段中输入内容时，错误消息是德语的。如何更改此消息的语言(英语)？这是我的 View 代码:

<%=form_for(@electricity_generation) do |f| %>
<% if @electricity_generation.errors.any? %>
<div id="error_explanation">
    <h2><%= pluralize(@electricity_generation.errors.count, "error") %>
        prohibited this electricity_generation from being saved:</h2>

    <ul>
        <% @electricity_generation.errors.full_messages.each do |message| %>
        <li>
            <%=m essage %>
        </li>
        <% end %>
    </ul>
</div>
<% end %>
<section>
    <h2 align="center">
        Chosen Scenario:
        <%=link_to @scenario_selections, scenarios_path %>
    </h2>
    <br>
    <div class="table-row-2">
        <div align="center">
            <div class="field">
                <div class="table">
                    <strong>Information</strong>
                </div>
                <div class="table">
                    <strong>Value</strong>
                </div>
                <div class="table">
                    <strong>Positive Deviation (1=100%)</strong>
                </div>
                <div class="table">
                    <strong>Negative Deviation (1=100%)</strong>
                </div>
                <div class="table">
                    <%=label_tag(:annual_solar_irradiation, 'Annual Solar Irradiation (kwh/m^2):') %>
                </div>
                <div class="table">
                    <%=f.text_field :annual_solar_irradiation, type: "number", required: "required", placeholder: "kWh/m^2" %>
                </div>
                <div class="table">
                    <%=f.text_field :asi_max, type: "number", min: "0", max: "1", step: "0.01", required: "required"%>
                </div>
                <div class="table">
                    <%=f.text_field :asi_min, type: "number", min: "0", max: "1", step: "0.01", required: "required" %>
                </div>
            </div>
        </div>
    </div>
    <div align="center">
        <div class="actions">
            <%=f .submit %>
        </div>
    </div>
</section>
<% end %>

这是它的显示方式:

这是 application.rb:

Answer 1

您使用 HTML constraint validation在你的表格中。您看到的错误消息是由浏览器创建的。浏览器以其安装的语言提供此错误消息。

如果需要，您可以使用 input 标记的 title 属性覆盖(或添加信息；取决于浏览器)此消息。

<%=f.text_field :asi_max, type: "number", min: "0", max: "1", step: "0.01", title: "Please enter a number between 0 and 1.", required: "required" %>

如果您想完全控制此消息，您需要使用 Javascript(另见 this 问题)。有图书馆(如 parsleyjs )可以帮助您做到这一点。