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我正在解決一個困惑了我幾天的解析雲代碼問題。解析Query.First成功/錯誤回調間歇性地不叫
我有一個功能，將檢查用戶是否已註冊推送通知，並沒有禁用它們之後。它將一個響應對象作爲輸入，一個字段名稱來檢查一個PFUser指針和一個回調。
function shouldSendPushNotification(object, field, callback){
user = object.get(field);
if(!user){
console.log("Error: No User in object");
return;
}
console.log('User is:');
console.log(user);
userId = user.id;
console.log('Seeking push status for user: ' +userId);
console.log(object);
userQuery = new Parse.Query(Parse.User);
userQuery.equalTo("objectId", userId);
console.log('User Query:');
console.log(userQuery);
userQuery.first
({
success: function(userRetrieved)
{
console.log('Successfully found user:');
console.log(userRetrieved);
if(userRetrieved.get("pushEnabled") == false){
console.log('Error: Push not enabled for user. Aborting.');
callback(false);
return;
}
console.log("Push enabled for user. Continuing.")
callback(true);
return;
},
error: function(error)
{
console.log('Error: Failed to find user for push check.');
callback(false);
return;
}
});
}
我從兩個地方調用這個方法。在具有PFUser（用戶字段）的指針引用的「Messages」類的afterSave函數中，還有一個自定義雲函數，該函數通過「Reminder」類循環，該類也具有一個名爲「Owner」的指針給PFUser。
的afterSave方法的日誌輸出低於（反向時間順序排列）：
I2016-04-25T08:09:07.716Z] - New object created with objectId: 3olbwjbMVW
I2016-04-25T08:09:07.679Z] - Successfully sent new message push notification to channel: user_7le4EGeKnC with message: New message recieved from Richi Rich
I2016-04-25T08:09:07.578Z] - Fetching Clinic Details for id: 7KgcJMLheu
I2016-04-25T08:09:07.577Z] - Attempting Push to channel: user_7le4EGeKnC
I2016-04-25T08:09:07.576Z] - Push enabled for user. Continuing.
I2016-04-25T08:09:07.575Z] - {"address1":"123 Sesame Street","address2":"","addressPostcode":1234,"addressState":"VIC","addressSuburb":"Port Melbourne","clinic":{"__type":"Pointer","className":"Clinic","objectId":"7KgcJMLheu"},"createdAt":"2016-03-20T09:35:52.252Z","email":"[email protected]","emailVerified":false,"firstName":"Steve","lastName":"Forbes","phone":"0400000000","pushEnabled":true,"updatedAt":"2016-04-18T00:47:54.340Z","username":"[email protected]","objectId":"7le4EGeKnC"}
I2016-04-25T08:09:07.574Z] - Successfully found user:
I2016-04-25T08:09:07.526Z] - {"where":{"objectId":"7le4EGeKnC"}}
I2016-04-25T08:09:07.525Z] - User Query:
I2016-04-25T08:09:07.524Z] - {"clinic":{"__type":"Pointer","className":"Clinic","objectId":"7KgcJMLheu"},"content":"<html><body><p style=\"font-family: serif; font-size: 26px;\">This is a test message from Parse</p></body></html>","createdAt":"2016-04-25T08:09:07.518Z","isUnread":true,"title":"Yo - Test","updatedAt":"2016-04-25T08:09:07.518Z","user":{"__type":"Pointer","className":"_User","objectId":"7le4EGeKnC"},"objectId":"3olbwjbMVW"}
I2016-04-25T08:09:07.523Z] - Seeking push status for user: 7le4EGeKnC
I2016-04-25T08:09:07.522Z] - {"objectId":"7le4EGeKnC"}
I2016-04-25T08:09:07.521Z] - User is:
爲雲功能：
I2016-04-25T08:09:53.838Z] - {"where":{"objectId":"7le4EGeKnC"}}
I2016-04-25T08:09:53.837Z] - User Query:
I2016-04-25T08:09:53.836Z] - {"Owner":{"__type":"Pointer","className":"_User","objectId":"7le4EGeKnC"},"createdAt":"2016-04-10T05:45:26.552Z","frequencyInterval":0,"name":"Test","nextReminderDate":{"__type":"Date","iso":"2016-04-26T06:45:00.000Z"},"pet":"Pizza","startDate":{"__type":"Date","iso":"2016-04-12T06:45:14.000Z"},"type":0,"updatedAt":"2016-04-25T07:06:46.986Z","objectId":"BGvPwnq5SB"}
I2016-04-25T08:09:53.835Z] - Seeking push status for user: 7le4EGeKnC
I2016-04-25T08:09:53.834Z] - {"objectId":"7le4EGeKnC"}
I2016-04-25T08:09:53.833Z] - User is:
正如你可以看到所述第一呼叫完全執行 - 然而第二個具有相同的輸入，但userQuery.First（）的成功/錯誤回調從未得到執行。我不知道爲什麼！