<% temp1= "secondary" %>
<% @query = "select credentials_id from credentials where credentials_id LIKE '%" + temp1 + "%'" %>
<% Request.connection.execute(@query) %>
<% if @query.blank? %>
<p>These are no secondary users still created </p>
<% else %>
<% @query.each do |c| %>
<%= label_tag(:credentials_id,c.credentials_id)%>
<%end%>
<%end%>
我正在尝试执行上面的代码,我已在“admin.html.erb”文件中编写,但我收到以下错误:
#
的未定义方法'each'
答案 0 :(得分:1)
@query
变量只是String
。如果要迭代该字符串上的每个字符,则应使用each_char
方法。
我真的相信你正在迭代错误的变量。我想你想迭代你的查询结果,而不是你的查询字符!为此你应该做的事情如下:
<% @query_result = Request.connection.execute(@query) %>
<% @query_result.each do |c| %>
<%= label_tag(:credentials_id,c.credentials_id)%>
<%end%>