ruby on rails 和 bootstrap ，使 field_with_errors 显示水平

Question

在custom.css.scss 文件中

.field_with_errors {
    @extend .control-group;
    @extend .error;

}

和 html.erb

<%= form_for @timecard , url:{action: "savecard"},html:{class: "form-inline"} do |f| %>
    <%= f.label :"Date"%>
    <%= f.date_select :starttime ,{use_month_numbers: true }, class: "input-small" %>
    <%= f.label :"Hours"%>
    <%= f.number_field :hours, class: "input-small" %>
    <%= f.label :"Project"%>
    <% projects = Project.all.map { |project| [project.name, project.charge_number]  } %>
    <%= f.select :charge_number, options_for_select(projects) ,{},class: "input-small" , style:"width:150px"%>
    <%= f.submit "Save", class: "btn" %>
    <%= f.submit "Delete", class: "btn" %>
    <%= f.submit "Submit", class: "btn btn-danger",confirm:"You can't edit it agin if you've submitted it" %>
<% end %>

正常状态下还不错

但是如果发生了错误，它看起来像这样

以及它生成的html代码

<label for="time_card_Hours">Hours</label>
    <div class="field_with_errors"><input class="input-small" id="time_card_hours" name="time_card[hours]" type="number" /></div>
    <label for="time_card_Project">Project</label>

Answer 1

因为您使用的是内联表单，而 div 显示为块默认值。试试

.field_with_errors {
    @extend .control-group;
    @extend .error;

    display: inline-block;
}

Answer 2

请注意，使用 Bootstrap 3 names have changed

.field_with_errors {
  @extend .has-error;
  display: inline-block;
}

Answer 3

我最终使用了以下内容：

.field_with_errors {
  @extend .has-error;
}

.form-inline .field_with_errors {
  display: inline-block;
}

这为所有表单扩展了.has-error Bootstrap 类，如果使用的表单是内联表单 (.form-inline)，它会将.field_with_errors 显示为inline-block。