我有这个应用程序，它将显示邮政编码资格。我让搜索功能正常工作。它会在找到符合条件的邮政编码时返回邮政编码和消息。
但是我想在找不到条目时显示错误。现在它只显示相同的搜索页面，没有任何信息。
这是我的看法
<h1>
Pick-up/Delivery Eligibility
</h1>
<h3>
Based on U.S. Zipcode, Canadian Postal Code
</h3>
<p class="el">
To find out if you qualify for 4over’s local delivery service,
please enter your <nobr>U.S. 5 digit zip code, or</nobr> your
<nobr>Canadian 6 character Postal Code,</nobr> then click submit.
<%= form_tag zips_path, :method => "get" do %>
<p><%= text_field_tag :search, params[:search] %> | <%= submit_tag "Search", :name => nil %></p>
<% end %>
<!--
<h4>Current Eligible Zip Codes</h4>
<% @zips.each do |zip| %>
<p><%= link_to zip.zip, zip %>|<%= zip.state %> <%= link_to "Edit", edit_zip_path(zip) %> | <%= link_to "Delete", zip, :confirm => "Are you Sure?", :method => :delete %> </p>
<hr />
<% end %>
<p><%= link_to "Add a New Zip", new_zip_path %></p>
-->
<% @zips.each do |zip| %>
<hr />
<p>
Your zipcode <span style="background-color:yellow"><tt><b><%= zip.zip %></b></tt></span> is eligible for local delivery, in the following zone(s):
<span style="background-color:yellow"><tt><b><%= zip.state %></b></tt></span>
<p class=el>
Please fill out the form at this link: <%= link_to "Application Form", "http://tools.4over.com/feedel.pdf" %>
<p class="el">
The following terms and conditions apply: <p class="if">We do not guarantee delivery time and date; we do our best to stay within the
scheduled delivery period, but in case of any emergency, extra work
load, or unforeseen circumstances deliveries might be postponed to the
following day or cancelled.
<p class="if">4over, Inc. will not be responsible for any
problem such as loss of business/customers that may be caused by late
delivery or NO delivery.
<p class="if">This is a courtesy service and we reserve
the right to refuse service to anyone. We reserve the right to
alter a specific zone/route or cancel any zone/route.
We do not guarantee a press time to print your jobs to match
with your delivery schedule.
</p>
<% end %>
这是我的模型文件
class Zip < ActiveRecord::Base
###
# Validations below
###
validates :zip, :state, :presence => true
validates :zip, :length => { :minimum => 5, :maximum => 6 }
validates :state, :length => { :minimum => 2, :maximum => 3 }
validates :zip, :uniqueness => true
##
def self.search(search)
if search
find(:all, :conditions => ['zip LIKE ?', "%#{search}%"])
else
find(:all)
end
end
end
这是我在控制器文件中的操作
class ZipsController < ApplicationController
def index
@zips = Zip.search(params[:search])
end
...
end
我想要做的是从动作中发送一条闪光消息。(a ":notice => "Zip code not compatible") 但我不确定要测试什么
我试过了
if not @zips.search
redirect_to zips_path, :notice => "Zipcode is not eligible"
end
但这没有用。有什么东西可以测试以返回 Flash 消息吗？
这是我的日志
Started GET "/zips?utf8=%E2%9C%93&search=91702" for 10.7.2.31 at 2013-08-05 17:07:52 -0700
Processing by ZipsController#index as HTML
Parameters: {"utf8"=>"✓", "search"=>"91702"}
DEPRECATION WARNING: Calling #find(:all) is deprecated. Please call #all directly instead. You have also used finder options. These are also deprecated. Please build a scope instead of using finder options. (called from search at /var/www/html/localdel/app/models/zip.rb:37)
DEPRECATION WARNING: Relation#all is deprecated. If you want to eager-load a relation, you can call #load (e.g. `Post.where(published: true).load`). If you want to get an array of records from a relation, you can call #to_a (e.g. `Post.where(published: true).to_a`). (called from search at /var/www/html/localdel/app/models/zip.rb:37)
Zip Load (0.9ms) SELECT "zips".* FROM "zips" WHERE (zip LIKE '%91702%')
Rendered zips/index.html.erb within layouts/application (0.6ms)
Completed 200 OK in 8ms (Views: 4.6ms | ActiveRecord: 0.9ms)
Started GET "/assets/jquery_ujs.js?body=1" for 10.7.2.31 at 2013-08-05 17:07:52 -0700
我是 Ruby 和 Rails 的新手；所以任何帮助都会很棒！
谢谢！
附言
我正在使用 Ruby 1.9.x 和 Rails 4.x