2012-03-23 38 views
1

我有一個電子郵件的Rails形式,我想在Receiver字段中自動完成。下面是我做的:jQuery自動完成的Rails形式

= f.label :recipient_id, "Send to:" 
= text_field_tag :recipient_id, nil 
:javascript 
$(function() { 
    $("#recipient_id").autocomplete({ 
     source: "#{escape_javascript url_for(:action => 'recipient_autocomplete', 
        :controller => 'sent')}", 
     minLength: 2, 
     select: function(event, ui) { 
      $('input#recipient_id').attr('value', ui.item.value); 
      ui.item.value = ui.item.label 
     } 
    }); 
}); 

在我的控制,我有:

def recipient_autocomplete 
    @users= User.all(:conditions => ['first_name LIKE ? OR last_name LIKE?', 
     "%#{params[:term]}%", "%#{params[:term]}%"]) 
    render :json => @users.collect {|x| {:label=>x.full_name, :value=>x.id}}.compact 
    end 

JSON的呼叫工作正常,並顯示全名確定。這裏是元素:

<input type="text" name="recipient_id" id="recipient_id" class="ui-autocomplete-input" 
    autocomplete="off" role="textbox" aria-autocomplete="list" 
    aria-haspopup="true" value="158"> 

然而,當我點擊發送(相當於提交),該RECEIPIENT全名發送的,而不是receipient_id。

如何判斷Rails表單是否取得輸入字段的值(在上例中爲158)而不是其標籤?

回答

1

ERR一個非常好的軌道以及HTML規範說text_field的文本是它要返回值。但是你可以只使用一個hidden_field傳遞_id像這樣,

= f.label :recipient_id, "Send to:" 
= text_field_tag :recipient_name, nil 
= hidden_field_tag :recipient_id, nil 
:javascript 
$(function() { 
    $("#recipient_id").autocomplete({ 
     source: "#{escape_javascript url_for(:action => 'recipient_autocomplete', 
        :controller => 'sent')}", 
     minLength: 2, 
     select: function(event, ui) { 
      $('input#recipient_name').val(ui.item.label); 
      $('input#recipient_id').val(ui.item.value); 
     } 
    }); 
}); 

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