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嘿大家我一直在一個項目拍照並使用phonegap/jQuery/html5將它們存儲在數據庫中。數據庫條目需要存儲一些地理位置信息和相機拍攝的圖像的BLOB。這是目前我正在使用的方法來試圖做到這一點,而不是爲我工作。 BLOB總是打破我的插入語句。如果我將smallImage設置爲「1」而不是圖像數據,則它工作正常。有沒有更好的方法來插入這個blob?當我看着日誌時,它看起來像是小圖像被切斷了。Phonegap將照片和插入圖像(BLOB)到數據庫SQLite
var cameraLat;
var cameraLong;
var cameraTimestamp;
var destinationType;
var cameraLocationID;
function onGeoSuccess(position) {
cameraLat = position.coords.latitude;
console.log(cameraLat);
cameraLong = position.coords.longitude;
console.log(cameraLong);
cameraTimestamp = position.timestamp;
console.log(cameraTimestamp);
}
function geoFail(position) {
alert('code: ' + error.code + '\n' +
'message: ' + error.message + '\n');
}
function onPhotoDataSuccess(imageData) {
// Get image handle
navigator.geolocation.getCurrentPosition(onGeoSuccess, geoFail);
var smallImage = imageData;
var Latitude = cameraLat;
var longitude = cameraLong;
var timestamp = cameraTimestamp;
var LID = cameraLocationID;
console.log(Latitude); //working
console.log(longitude); //working
console.log(timestamp); //working
console.log(smallImage); // This cuts out and breaks my insert.
var db = window.openDatabase("MobilePhotos", "1.0", "MobilePhotosData", 1000000);
db.transaction(function (tx) {tx.executeSql('INSERT INTO Photos(PhotoID, PictureFile, Longitude, Latitude, Timestamp) VALUES('+ timestamp+LID+' ,' + smallImage + '", ' + longitude +', '+ Latitude +', "'+ timestamp +'")')})
}
function take_pic(LocationID) {
cameraLocationID=LocationID;
navigator.camera.getPicture(onPhotoDataSuccess, function(ex) {alert("Camera Error!");}, { quality : 50, destinationType: Camera.DestinationType.DATA_URL });
}
這裏是我的錯誤,當我嘗試輸入BLOB:
02-05 16:10:19.702: W/System.err(12028):
android.database.sqlite.SQLiteException:
no such column: undefined (code 1): , while compiling:
INSERT INTO OrderPhotos(PhotoID, PictureFile, Longitude, Latitude, Timestamp)
VALUES(1904010821 , "/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDABsS..(3825 characters)
但我沒有看到其餘字段。有什麼東西可以打破雙引號?或者在這裏發生了其他事情?
如果我把一個 「1」 在smallImage我的輸出能正常工作,我得到:
INSERT INTO OrderPhotos(PhotoID, PictureFile, Longitude, Latitude, Timestamp)
VALUES(1904010821 , "1", 39.10, -84.50, 190401082)