我有以下代碼至極投用Rails 3的一個錯誤:正如你可以看到它像user_id是轉換named_scope鋼軌3
Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2053809816 AND audition_tags.audition_id = auditions.id)) ORDER BY auditions.cr' at line 1: SELECT `auditions`.* FROM `auditions` WHERE (NOT EXISTS (SELECT * FROM audition_tags WHERE audition_tags.user_id = '#<ActiveRecord::Relation:0x104ee3c20>',2053809816 AND audition_tags.audition_id = auditions.id)) ORDER BY auditions.created_at DESC LIMIT 0, 10
:
調用時出現以下錯誤現在一個表包含一個ActiveRelation對象,以及...我的user_id
我不明白髮生了什麼...你有什麼想法嗎?
感謝
更新:這裏是完整的SQL輸出:
SELECT `auditions`.* FROM `auditions` WHERE (NOT EXISTS (SELECT * FROM audition_tags as bar WHERE bar.user_id = '#<ActiveRecord::Relation:0x104aa6c48>',2053809816 AND bar.audition_id = auditions.id)) ORDER BY auditions.created_at DESC LIMIT 0, 10
UPDATE2:這裏是叫我的範圍代碼https://gist.github.com/ddddfeddf70264a81289
UPDATE3:正如你所看到的我的要點鏈接的示波器被稱爲「呼叫」:
scopes.inject(self) {|m,v| m.scopes[v[0]].call(m, v[1]) }
如果我登錄的USER_ID送它一個Fixnum不是數組:
scopes.inject(self) do |m,v|
logger.info ">>> SCOPE : #{v[0].inspect} | ARG : #{v[1].inspect} | ARG CLASS : #{v[1].class.inspect} <<<"
m.scopes[v[0]].call(m, v[1])
end
所以,現在的問題是更精確:我送一個Fixnum作爲參數傳遞給我的named_scope但得到的輸出數組類型:ActiveRecord的::關係,Fixnum對象]
UPDATE4:我終於找到解決辦法(但不知道爲什麼???)
我取代 「呼」 的 「送」,它をrks ...
results = scopes.inject(self) do |combined_scope, scope|
combined_scope.send(scope[0], scope[1])
end
謝謝大家的幫忙!
不知道,但不應該'FROM audition_tags酒吧WHERE'是'FROM audition_tags,酒吧WHERE' - 注意'AS' – Ariejan 2010-10-26 15:13:00
不,你並不需要,據我所知它是可選 – Mike 2010-10-26 15:18:12
完整的SQL如何生成? – shingara 2010-10-26 15:25:44