我有一个存储酱汁细节的程序。基本上,当我进入编辑表单时,我正在做我应该做的所有事情,id 已成功通过,但是所有表单字段都保持为空,而不是显示数据库中已经存在的值。
在我的控制器中:
def edit
@sauce = Sauce.find(params[:id])
@pagetitle = "Edit #{@sauce.name} Sauce"
end
def update
# Find object using form parameters
@sauce = Sauce.find(params[:id])
# Update the object
if @sauce.update_attributes(params[:page])
# If update succeeds, redirect to the list action
flash[:notice] = "Sauce updated."
redirect_to(:action => 'list')
else
# If save fails, redisplay the form so user can fix problems
render('edit')
end
形式部分:
<%= error_messages_for(@sauce) %>
<table summary="Sauces Form Fields">
<tr>
<th><%= f.label(:name,"Sauce Name") %></th>
<td><%= f.text_field(:name) %></td>
</tr>
<tr>
<th><%= f.label(:description, "Description") %></th>
<td><%= f.text_area(:description, :size => '40x5') %></td>
</tr>
<tr>
<th><%= f.label(:heat_level, "Heat Level") %></th>
<td><%= f.select(:heat_level,{ 1 => "1", 2 => "2", 3 => "3", 4 => "4", 5 => "5"}) %></td>
</tr>
<tr>
<th><%= f.label(:pic_url, "Picture URL") %></th>
<td><%= f.text_field(:pic_url) %></td>
</tr>
<tr>
<th><%= f.label(:title_colour, "Title Colour") %></th>
<td><%= f.text_field(:title_colour) %></td>
</tr>
<tr>
<th><%= f.label(:description_colour, "Desc Colour") %></th>
<td><%= f.text_field(:description_colour) %></td>
</tr>
</table>
我的edit.html.erb
<%= form_for(:subject, :url => {:action => 'update', :id => @sauce.id}) do |f| %>
<%= render(:partial => "form", :locals => {:f => f}) %>
<%= submit_tag("Update Subject") %>
<% end %>
我哪里错了?