Mysql到PostgreSql的Rails 3 Heroku的應用程序真/假

一切工作正常，直到我推到heroku，我收集它必須做與不同的方式mysql和postgres顯示布爾值？Mysql到PostgreSql的Rails 3 Heroku的應用程序真/假

我使用紅寶石1.9.2p318和的Rails 3.2.2與的Mysql 5.2.35上最大OSX

下面是該查詢我試圖運行

@special_offers = Wine.find(:all, :include => [:inventories], :conditions => ["inventories.special = ? AND inventories.warehouse_id IN (?)", "true", @wharehouses_array], :order => "inventories.updated_at DESC", :limit => 3)

看來問題出在inventories.special = ?, "true" 這對mysql工作正常，但不是當我推到heroku，這是使用postgres

我試圖用1和「1」和「t」替換「true」，t和true，但似乎沒有任何工作？

UPDATE：
Heroku的日誌文件

2012-04-04T14:06:58+00:00 app[web.1]: [2012-04-04 14:06:58] INFO WEBrick 1.3.1 
2012-04-04T14:06:58+00:00 app[web.1]: [2012-04-04 14:06:58] INFO WEBrick::HTTPServer#start: pid=1 port=54181 
2012-04-04T14:06:58+00:00 app[web.1]: [2012-04-04 14:06:58] INFO ruby 1.9.2 (2011-07-09) [x86_64-linux] 
2012-04-04T14:06:59+00:00 heroku[web.1]: State changed from starting to up 
2012-04-04T14:07:01+00:00 app[web.1]: => Booting WEBrick 
2012-04-04T14:07:01+00:00 app[web.1]: => Call with -d to detach 
2012-04-04T14:07:01+00:00 app[web.1]: => Ctrl-C to shutdown server 
2012-04-04T14:07:01+00:00 app[web.1]: 
2012-04-04T14:07:01+00:00 app[web.1]: => Rails 3.2.2 application starting in production on http://0.0.0.0:54181 
2012-04-04T14:07:01+00:00 app[web.1]: 
2012-04-04T14:07:01+00:00 app[web.1]: Started GET "/" for 41.119.121.138 at 2012-04-04 14:07:01 +0000 
2012-04-04T14:07:02+00:00 app[web.1]: Processing by HomeController#index as HTML 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered partials/_display_wines.html.erb (169.1ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered partials/_display_wines.html.erb (0.0ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered partials/_display_wines.html.erb (8.1ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered home/index.html.erb within layouts/application (259.9ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered partials/_header_bar.html.erb (6.5ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered partials/_main_links.html.erb (0.3ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Rendered partials/_footer.html.erb (4.9ms) 
2012-04-04T14:07:03+00:00 app[web.1]: Completed 200 OK in 1081ms (Views: 345.8ms | ActiveRecord: 175.7ms | Solr: 0.0ms) 
2012-04-04T14:07:03+00:00 app[web.1]: cache: [GET /] miss 
2012-04-04T14:07:03+00:00 heroku[router]: GET stormy-fog-6888.herokuapp.com/ dyno=web.1 queue=0 wait=0ms service=1350ms status=200 bytes=36808 
2012-04-04T14:07:04+00:00 heroku[router]: GET stormy-fog-6888.herokuapp.com/javascripts/jquery.js dyno=web.1 queue=0 wait=0ms service=137ms status=304 bytes=0 
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2012-04-04T14:07:04+00:00 heroku[router]: GET stormy-fog-6888.herokuapp.com/javascripts/PIE.js dyno=web.1 queue=0 wait=0ms service=185ms status=304 bytes=0 
2012-04-04T14:07:04+00:00 heroku[router]: GET stormy-fog-6888.herokuapp.com/javascripts/rails.js dyno=web.1 queue=0 wait=0ms service=189ms status=304 bytes=0 
2012-04-04T14:07:04+00:00 app[web.1]: cache: [GET /javascripts/PIE.js] miss 
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2012-04-04T14:07:04+00:00 app[web.1]: cache: [GET /images/cybercellar_logo.jpg] miss 
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2012-04-04T14:07:04+00:00 app[web.1]: cache: [GET /images/header_login.png] miss 
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2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/no_wine.png] miss 
2012-04-04T14:07:05+00:00 heroku[router]: GET stormy-fog-6888.herokuapp.com/images/no_wine.png dyno=web.1 queue=0 wait=0ms service=22ms status=304 bytes=0 
2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/buttons2.png] miss 
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2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/find_wine_wrap.png] miss 
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2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/comment.png] miss 
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2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/bullet.png] miss 

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2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/home_page_image.png] miss 
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2012-04-04T14:07:05+00:00 app[web.1]: cache: [GET /images/find_wine.png] miss 
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2012-04-04T14:07:06+00:00 app[web.1]: cache: [GET /images/credit_cards.png] miss 
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2012-04-04T14:07:06+00:00 app[web.1]: cache: [GET /images/money_back.png] miss 
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架構文件：在庫存表

create_table "inventories", :force => true do |t| 
    t.integer "wine_id" 
    t.integer "warehouse_id" 
    t.integer "stock" 
    t.float  "price" 
    t.integer "quantity_id" 
    t.timestamp "created_at" 
    t.timestamp "updated_at" 
    t.boolean "available",      :default => false 
    t.boolean "discount",       :default => false 
    t.string "markupprofile_id", :limit => 45 
    t.string "discountprofile_id", :limit => 45 
    t.float  "discount_price" 
    t.boolean "special",       :default => false 
    end

來源

2012-04-04 Francois

生成的SQL和PostgreSQL中的錯誤會很有幫助。一旦你有了這些，有人可以馬上告訴你。其實，一旦你有了那些你可能不需要問的問題。 – 2012-04-04 12:03:21

*似乎沒有任何工作*不是有效的錯誤消息。 – 2012-04-04 12:20:53

我看了一下heroku日誌文件，它沒有顯示任何錯誤消息，它只是在使用Wine.find（：all，：include => [：inventory]，：conditions => [ 「inventories.special =？」，「true」]）'因爲postgresql中的「true」值不一樣？ – Francois 2012-04-04 14:10:55

使用實際的TrueClass，而不是一個字符串，Rails會將它轉換爲正確的查詢。

正確：

"inventories.special = ?", true

錯誤：

"inventories.special = ?", "true"

，因爲第二個仍然會產生一個有效的查詢它不引發錯誤，它只是在尋找記錄，其中特別是與實際的字符串真正的字符在裏面。

來源

2012-04-04 14:23:03 tybro0103

好的，讓我試試這個！：）謝謝！ – Francois 2012-04-04 14:37:03

好的，我把''inventories.special =？「，」true「'改成''inventories.special =？」，true'，但現在它沒有顯示任何結果？讓我看看架構文件快速 – Francois 2012-04-04 14:40:24

它看起來像列實際上是布爾值，或在MySQL中顯示爲tinyint，這是正確的嗎？ – Francois 2012-04-04 14:44:02

Mysql到PostgreSql的Rails 3 Heroku的應用程序真/假

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