Rails f.select僅保存空白字符串而不是選項值

如何獲得此Rails f.select以停止在數據庫中保存空白字符串？我的API提交和數據庫提交都得到200，但數據庫和API都發送空白字符串。Rails f.select僅保存空白字符串而不是選項值

查看代碼

<a href="#" class="button" id="new-suggestion-button" onclick="newSuggestionToggle(event)">New Suggestion</a> 

<div id="new-suggestion-info"> 
    <h1>New Suggestion</h1> 
    <%= form_for @suggestion, url: { action: "create" }, remote: true do |f| %> 
    <div> 
     <%= f.select :name, options_for_select(@snacks.collect { |snack| snack["name"] if !snack["optional"] }), {}, { id: "snack-select", onchange: "otherSelected()" } %> 
    </div> 

    <br> 
    <div id="other-snack-info"> 
     <h1>New Snack</h1> 
     <div> 
     <%= f.label :name %> 
     <%= f.text_field :name %> 
     </div> 
     <div> 
     <%= f.label :purchase_location %> 
     <%= f.text_field :purchase_location %> 
     </div> 
    </div> 
    <div> 
     <%= f.hidden_field :optional, value: false %> 
     <%= f.submit 'Submit' %> 
    </div> 
    <% end %> 
</div>

控制器代碼

def index 
    api_key = ENV["API_KEY"] 
    @snacks = Unirest.get("https://address_is_correct" + api_key).body 
    @snacks << { "name" => "Other" } 
    @suggestion = Suggestion.new 
    end 

    def create 
    api_key = ENV["API_KEY"] 
    Unirest.post("https://address_is_correct" + api_key, 
     headers:{ "Accept" => "application/json" }, 
     parameters: { 
     name: params[:name], 
     optional: params[:optional], 
     purchase_location: params[:purchase_location], 
     purchase_count: params[:purchase_count], 
     last_purchase_date: params[:last_purchase_date] 
     } 
    ).body 

    @suggestion = Suggestion.new(suggestion_params) 

    if @suggestion.save 
     respond_to do |format| 
     format.html 
     format.js { render "create" } 
     end 
    end 
    end 

    private 

    def suggestion_params 
     params.require(:suggestion).permit(
     :name, 
     :optional, 
     :purchase_location, 
     :purchase_count, 
     :last_purchase_date 
    ) 
    end

參數被穿過終端這個樣子的

[["name", ""], ["optional", false], ["purchase_location", ""], ["created_at", 2017-04-19 17:09:46 UTC], ["updated_at", 2017-04-19 17:09:46 UTC]]

來源

2017-04-19 Mahler7

正如你可以通過你的輸出看，所選擇的名稱沒有到達服務器端。這意味着問題在前端處理。

我的猜測是，因爲你有2個名稱屬性元素（1選擇，1輸入），你選擇的值不會被提交，因爲輸入放在select元素之後。嘗試刪除輸入元素或在選項選項上禁用它。

來源

2017-04-19 20:35:52 Fercell

Rails f.select僅保存空白字符串而不是選項值

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