我有一個Rails 3應用程序,我使用以下代碼來解析JSON柱:解析嵌入式串形式JSON
email_payload = JSON.parse(params[:payload])
Result.create(:from => email_payload['from'], :from_name => email_payload['from_name'], :from_address => email_payload['from_address'], :date => email_payload['date'], :html_body => email_payload['html_body'], :priority => email_payload['priority'], :spam_status => email_payload['spam_status'], :subject => email_payload['subject'])
的JSON後數據如下:
payload{ "address_identifier": null, "attachments": [ [ "twitter.png", "image/png", 3029, "http://api.deliverhq.com/api/incoming/attachment/7gdd71wo75/5772412/0" ] ], "cc": null, "date": "Thu, 25 Oct 2012 22:04:20 +0100"
我我試圖解決如何解析URL,在這種情況下,http://api.deliverhq.com/api/incoming/attachment/7gdd71wo75/5772412/0
,然後將該URL輸入到數據庫中。
:url => email_payload['attachments']
不會工作,因爲有連接內和多個值:
email_attachments_payload = JSON.parse(params[:payload][:attachments])
:url => email_attachments_payload['URL']
不會工作,因爲該URL不具有標識符。對於這個特定的應用程序,應該只有一個附件,因此如果可能的話,選擇.first可能是一個選項。
任何指針,將不勝感激!
UPDATE:
添加:
email_payload[:attachments][0][4]
結果示於下述異常錯誤:
NoMethodError: undefined method []' for nil:NilClass
UPDATE 2
def receive_fax
if request.get?
render :text => "hello"
elsif request.post?
email_payload = JSON.parse(params[:payload])
Fax.create(:from => email_payload['from'], :from_name => email_payload['from_name'], :from_address => email_payload['from_address'], :date => email_payload['date'], :html_body => email_payload['html_body'], :priority => email_payload['priority'], :spam_status => email_payload['spam_status'], :subject => email_payload['subject'], :fax => email_payload[:attachments][0][3])
render :text => "success"
else
render :text => "error"
end
end
你似乎attachment'和'attachments'之間'進行切換,是單數還是複數? –
對不起,這是複數。 – dannymcc
'email_payload [:附件]'是在它的4元件陣列,其中最後的是URL的1元件陣列。你想要的是獲得該網址?你不能只用'email_payload [:附件] [0] [4]'?如果不是,那麼你必須對約束更具體。 –