1
有人能告訴我下面的代碼有什麼問題。主要問題是:indexed_db - objectstore.delete - onSuccess
fDbListAllClients; // this is not being "called"
似乎沒有被執行。
也可能有其他錯誤的代碼。我並不關心是否有必要檢查刪除,我想知道是什麼原因導致該問題的非執行問題。
fDbDeleteOneClient(String sKey) {
var oDbTxn = ogDb1.transaction(sgTblClient, 'readwrite');
var oDbTable = oDbTxn.objectStore(sgTblClient);
var oDbRecord = oDbTable.getObject(sKey);
oDbRecord.onSuccess.first.then((val) {if (oDbRecord.result == null) {
window.alert("Record $sKey not found and cannot be deleted");
return;}});
var oDbDelReq = oDbTable.delete(sKey);
oDbDelReq.onSuccess.first.then((val1) {
var oDbRecord = oDbTable.getObject(sKey); // check if it was deleted
oDbRecord.onSuccess.first.then((val2){
if (oDbRecord.result != null) {
window.alert("Record $sKey was found but cannot be deleted");
}
});
fDbListAllClients; // this is not being "called"
});
oDbDelReq.onError.first.then((e) => window.alert(
"Error on Delete of $sKey. Error = ${e}"));
}