Rails Helper Form For

rails_form_for.erb

<!-- 程式:沒有參數-->
<%= form_tag do %>
    表單資料
<% end %>

<!-- 輸出 -->
<form accept-charset="UTF-8" action="/" method="post">
    <div style="margin:0;padding:0;display:inline">
        <input name="utf8" type="hidden" value="&#x2713;" />
        <input name="authenticity_token" type="hidden" value="s1h4sM75vOxLx25I7R9Y0jXlpV+8LsA5Kpp+l2GcLkg="
        />
    </div>
   表單資料
</form>

<!------------------ 強大的分隔線 ------------------>

<!-- 程式：加入action及method -->
<%= form_tag("/search", :method => "get") do %>
  表單資料
<% end %>

<!-- 輸出 -->
<form accept-charset="UTF-8" action="/search" method="get">
  <div style="margin:0;padding:0;display:inline">
    <input name="utf8" type="hidden" value="&#x2713;" />
  </div>
  表單資料
</form>

<!------------------ 強大的分隔線 ------------------>

<!-- 程式:加入欄位 -->
<%= form_tag("/search", :method => "get") do %>
  <%= label_tag(:q, "Search for:") %>
  <%= text_field_tag(:q) %>
  <%= submit_tag("Search") %>
<% end %>

<!-- 輸出 -->
<form accept-charset="UTF-8" action="/search" method="get"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="&#x2713;" /></div>
  <label for="q">Search for:</label>
  <input id="q" name="q" type="text" />
  <input name="commit" type="submit" value="Search" />
</form>

<!------------------ 強大的分隔線 ------------------>

<!-- 程式:多參數controller,action,method,class -->
<%=form_tag( :controller=> "user", 
             :action => "new", 
             :method => "get", 
             :class => "nifty_form")
do %>
<% end %>
<!-- 輸出 -->
<form accept-charset="UTF-8" action="/user/new?class=nifty_form&amp;method=get"
method="post">
  <div style="margin:0;padding:0;display:inline">
    <input name="utf8" type="hidden" value="&#x2713;" />
    <input name="authenticity_token" type="hidden" value="s1h4sM75vOxLx25I7R9Y0jXlpV+8LsA5Kpp+l2GcLkg=" />
  </div>
</form>