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我從SQL導出表和查詢。Ruby CSV從MySQL導出的字符串和數字csv
紅寶石(1.9+)的方式來閱讀CSV似乎是:
require 'csv'
CSV.foreach("exported_mysql_table.csv", {:headers=>true}) do |row|
puts row
end
偉大的工程,如果你的數據是這樣的:
"name","email","potato"
"Bob","[email protected]","omnomnom"
"Charlie","[email protected]","andcheese"
"Doug","[email protected]","usemeltattack"
工作正常(第一行是標題,屬性)。但是,如果數據是這樣的:
"id","name","email","potato"
1,"Bob","[email protected]","omnomnom"
2,"Charlie","[email protected]","andcheese"
4,"Doug","[email protected]","usemeltattack"
然後我們得到的錯誤:
.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/csv.rb:1894:in `block (2 levels) in shift': Missing or stray quote in line 2 (CSV::MalformedCSVError)
我想這是因爲ID存儲爲數字而不是一個字符串,因此沒有引號,並且csv解析器期望所有條目都有引號。理想情況下,我想閱讀「Bob」字符串和1作爲數字(並將其填入散列哈希)
(已嘗試'FasterCSV',該寶石由於紅寶石變成'csv'1.9)
編輯:
指出的代碼工作正常(DERP),一直在尋找在錯誤的地方,它是多線領域的錯誤,問題轉移到Ruby CSV read multiline fields
唉問題是多線!我應該給出一個更好的例子,(並且實際測試了這一個-_-)。要開始新的問題。謝謝! – xxjjnn