Question

我是ruby on rails的新手，在这里我做了hava下拉选择框   如果我选择任何一个它应该存储的几个选项，如果   我选择其他人意味着应该出现另外一个文本框   值应该存储在数据库中

ezetabs_controller.rb

def create
        @ezetab = Ezetab.new(ezetab_params)
        if @ezetab.save
            redirect_to @ezetab
        else
            render 'new'
        end
    end

    private

    def ezetab_params
       ep = params.require(:ezetab).permit(:name, :email, :phonenumber, :organization, :city)
       ep[:city] = params[:others] if params[:others].present? 
       ep            
    end

ezetab.rb

validates :city, presence: true

new.html.erb

<div class="form-group clearfix">
                <div class="col-sm-2" id="mainone">
                    <%#= form.text_field :city, placeholder: "CITY", class: 'form-control required' %>
                    <%= form.select :city, options_for_select([['DELHI'],['GURGAON'],['FARIDABAD'],['GHAZIABAD'],['NOIDA'],['MUMBAI'],['THANE'], ['BANGALORE'],['OTHERS']]), {include_blank: 'CITY*'}, class: 'form-control required', name: 'city', :onchange => 'Checkselectedone(this.value);' %>
                        <% if @ezetab.errors[:city].present? %>
                            <span class="error_msg"><%= @ezetab.errors[:city][0]%></span>
                        <% end %>
                </div>
            </div>
            <div class="form-group clearfix">
                <div class="col-sm-2">
                    <%#= form.text_field :others, "", id: 'newtext',style: 'display:none;' %>
                    <%= text_field_tag :others, "", class: 'form-control', id: 'newtext', style: 'display:none;' %>

                </div>
            </div>

<script type="text/javascript">
function Checkselectedone(val){
    alert("one more text box is coming");
 var element=document.getElementById('newtext');
 if(val=='OTHERS')
   element.style.display='block';
 else  
   element.style.display='none';
}

任何人都可以告诉我如何存储选中的下拉菜单因为我只能存储其他oprtion text_field 选择下拉我无法选择请让我知道，因为我我是从昨天开始完成这一次，感谢提前

Answer 1

你试过这样的吗？

ezetabs_controller.rb

def create

    if params[:ezetab][:others] != nil
      eze_params = ezetab_params.merge!(city: params[:ezetab][:others])
    else
      eze_params = ezetab_params
    end

    @ezetab = Ezetab.new(eze_params)
    if @ezetab.save
        redirect_to @ezetab
    else
        render 'new'
    end
end



private

def ezetab_params
   ep = params.require(:ezetab).permit(:name, :email, :phonenumber, :organization, :city)                  
end

如何根据Ruby on Rails中选定的值存储其他选项值和下拉选择值

1 个答案: