public void deleteTran(Account acct, String transID) {
String[] args = {Integer.toString(acct.ID), transID};
db.beginTransaction();
try {
db.delete("trans", "acct_id=? and trans_id=?", args);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
private void updateTran(Transaction trans) {
db.beginTransaction();
try {
ContentValues newValue = tranValues(trans);
String[] args = {Integer.toString(trans.ID)};
db.update("trans", newValue, "_id=?", args);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
private void updateAccount(Account acct) {
db.beginTransaction();
try {
ContentValues newValue = acctValues(acct);
String[] args = {Integer.toString(acct.ID)};
db.update("acct", newValue, "_id=?", args);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
private int addAccount(Account acct) {
db.beginTransaction();
int acct_id;
try {
ContentValues newValue = acctValues(acct);
acct_id = (int) db.insertOrThrow("acct", "name", newValue);
acct.ID = acct_id;
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
return acct_id;
}
private int addTran(Transaction trans) {
db.beginTransaction();
int tran_id;
try {
ContentValues newValue = tranValues(trans);
tran_id = (int) db.insertOrThrow("trans", "acct_id", newValue);
trans.ID = tran_id;
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
return tran_id;
}
/**
* Executes a batch request and sends the results via sendJavascriptCB().
*
* @param dbname The name of the database.
* @param queryarr Array of query strings
* @param jsonparams Array of JSON query parameters
* @param queryIDs Array of query ids
* @param cbc Callback context from Cordova API
*/
private void executeSqlBatch(
String dbname,
String[] queryarr,
JSONArray[] jsonparams,
String[] queryIDs,
CallbackContext cbc) {
SQLiteDatabase mydb = this.getDatabase(dbname);
if (mydb == null) return;
String query = "";
String query_id = "";
int len = queryarr.length;
JSONArray batchResults = new JSONArray();
for (int i = 0; i < len; i++) {
query_id = queryIDs[i];
JSONObject queryResult = null;
String errorMessage = "unknown";
try {
boolean needRawQuery = true;
query = queryarr[i];
// UPDATE or DELETE:
// NOTE: this code should be safe to RUN with old Android SDK.
// To BUILD with old Android SDK remove lines from HERE: {{
if (android.os.Build.VERSION.SDK_INT >= 11
&& (query.toLowerCase().startsWith("update")
|| query.toLowerCase().startsWith("delete"))) {
SQLiteStatement myStatement = mydb.compileStatement(query);
if (jsonparams != null) {
for (int j = 0; j < jsonparams[i].length(); j++) {
if (jsonparams[i].get(j) instanceof Float || jsonparams[i].get(j) instanceof Double) {
myStatement.bindDouble(j + 1, jsonparams[i].getDouble(j));
} else if (jsonparams[i].get(j) instanceof Number) {
myStatement.bindLong(j + 1, jsonparams[i].getLong(j));
} else if (jsonparams[i].isNull(j)) {
myStatement.bindNull(j + 1);
} else {
myStatement.bindString(j + 1, jsonparams[i].getString(j));
}
}
}
int rowsAffected = -1; // (assuming invalid)
// Use try & catch just in case android.os.Build.VERSION.SDK_INT >= 11 is lying:
try {
rowsAffected = myStatement.executeUpdateDelete();
// Indicate valid results:
needRawQuery = false;
} catch (SQLiteException ex) {
// Indicate problem & stop this query:
ex.printStackTrace();
errorMessage = ex.getMessage();
Log.v(
"executeSqlBatch", "SQLiteStatement.executeUpdateDelete(): Error=" + errorMessage);
needRawQuery = false;
} catch (Exception ex) {
// Assuming SDK_INT was lying & method not found:
// do nothing here & try again with raw query.
}
if (rowsAffected != -1) {
queryResult = new JSONObject();
queryResult.put("rowsAffected", rowsAffected);
}
} // to HERE. }}
// INSERT:
if (query.toLowerCase().startsWith("insert") && jsonparams != null) {
needRawQuery = false;
SQLiteStatement myStatement = mydb.compileStatement(query);
for (int j = 0; j < jsonparams[i].length(); j++) {
if (jsonparams[i].get(j) instanceof Float || jsonparams[i].get(j) instanceof Double) {
myStatement.bindDouble(j + 1, jsonparams[i].getDouble(j));
} else if (jsonparams[i].get(j) instanceof Number) {
myStatement.bindLong(j + 1, jsonparams[i].getLong(j));
} else if (jsonparams[i].isNull(j)) {
myStatement.bindNull(j + 1);
} else {
myStatement.bindString(j + 1, jsonparams[i].getString(j));
}
}
long insertId = -1; // (invalid)
try {
insertId = myStatement.executeInsert();
} catch (SQLiteException ex) {
ex.printStackTrace();
errorMessage = ex.getMessage();
Log.v("executeSqlBatch", "SQLiteDatabase.executeInsert(): Error=" + errorMessage);
}
if (insertId != -1) {
queryResult = new JSONObject();
queryResult.put("insertId", insertId);
queryResult.put("rowsAffected", 1);
}
}
if (query.toLowerCase().startsWith("begin")) {
needRawQuery = false;
try {
mydb.beginTransaction();
queryResult = new JSONObject();
queryResult.put("rowsAffected", 0);
} catch (SQLiteException ex) {
ex.printStackTrace();
errorMessage = ex.getMessage();
Log.v("executeSqlBatch", "SQLiteDatabase.beginTransaction(): Error=" + errorMessage);
}
}
if (query.toLowerCase().startsWith("commit")) {
needRawQuery = false;
try {
mydb.setTransactionSuccessful();
mydb.endTransaction();
queryResult = new JSONObject();
queryResult.put("rowsAffected", 0);
} catch (SQLiteException ex) {
ex.printStackTrace();
errorMessage = ex.getMessage();
Log.v(
"executeSqlBatch",
"SQLiteDatabase.setTransactionSuccessful/endTransaction(): Error=" + errorMessage);
}
}
if (query.toLowerCase().startsWith("rollback")) {
needRawQuery = false;
try {
mydb.endTransaction();
queryResult = new JSONObject();
queryResult.put("rowsAffected", 0);
} catch (SQLiteException ex) {
ex.printStackTrace();
errorMessage = ex.getMessage();
Log.v("executeSqlBatch", "SQLiteDatabase.endTransaction(): Error=" + errorMessage);
}
}
// raw query for other statements:
if (needRawQuery) {
String[] params = null;
if (jsonparams != null) {
params = new String[jsonparams[i].length()];
for (int j = 0; j < jsonparams[i].length(); j++) {
if (jsonparams[i].isNull(j)) params[j] = "";
else params[j] = jsonparams[i].getString(j);
}
}
Cursor myCursor = mydb.rawQuery(query, params);
if (query_id.length() > 0) {
queryResult = this.getRowsResultFromQuery(myCursor);
}
myCursor.close();
}
} catch (Exception ex) {
ex.printStackTrace();
errorMessage = ex.getMessage();
Log.v("executeSqlBatch", "SQLitePlugin.executeSql[Batch](): Error=" + errorMessage);
}
try {
if (queryResult != null) {
JSONObject r = new JSONObject();
r.put("qid", query_id);
r.put("type", "success");
r.put("result", queryResult);
batchResults.put(r);
} else {
JSONObject r = new JSONObject();
r.put("qid", query_id);
r.put("type", "error");
JSONObject er = new JSONObject();
er.put("message", errorMessage);
r.put("result", er);
batchResults.put(r);
}
} catch (JSONException ex) {
ex.printStackTrace();
Log.v("executeSqlBatch", "SQLitePlugin.executeSql[Batch](): Error=" + ex.getMessage());
// TODO what to do?
}
}
cbc.success(batchResults);
}
/**
* Create and/or open a database that will be used for reading and writing. The first time this is
* called, the database will be opened and {@link #onCreate}, {@link #onUpgrade} and/or {@link
* #onOpen} will be called.
*
* <p>Once opened successfully, the database is cached, so you can call this method every time you
* need to write to the database. (Make sure to call {@link #close} when you no longer need the
* database.) Errors such as bad permissions or a full disk may cause this method to fail, but
* future attempts may succeed if the problem is fixed.
*
* <p class="caution">Database upgrade may take a long time, you should not call this method from
* the application main thread, including from {@link android.content.ContentProvider#onCreate
* ContentProvider.onCreate()}.
*
* @throws SQLiteException if the database cannot be opened for writing
* @return a read/write database object valid until {@link #close} is called
*/
public synchronized SQLiteDatabase getWritableDatabase() {
if (mDatabase != null) {
if (!mDatabase.isOpen()) {
// darn! the user closed the database by calling mDatabase.close()
mDatabase = null;
} else if (!mDatabase.isReadOnly()) {
return mDatabase; // The database is already open for business
}
}
if (mIsInitializing) {
throw new IllegalStateException("getWritableDatabase called recursively");
}
// If we have a read-only database open, someone could be using it
// (though they shouldn't), which would cause a lock to be held on
// the file, and our attempts to open the database read-write would
// fail waiting for the file lock. To prevent that, we acquire the
// lock on the read-only database, which shuts out other users.
boolean success = false;
SQLiteDatabase db = null;
if (mDatabase != null) mDatabase.lock();
try {
mIsInitializing = true;
if (mName == null) {
db = SQLiteDatabase.create(null);
} else {
db =
SQLiteDatabase.openDatabase(
mName, mPasswd, mFactory,
0); // mContext.openOrCreateDatabase(mName, 0, mFactory, mErrorHandler);
}
int version = db.getVersion();
if (version != mNewVersion) {
db.beginTransaction();
try {
if (version == 0) {
onCreate(db);
} else {
if (version > mNewVersion) {
onDowngrade(db, version, mNewVersion);
} else {
onUpgrade(db, version, mNewVersion);
}
}
db.setVersion(mNewVersion);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
onOpen(db);
success = true;
return db;
} finally {
mIsInitializing = false;
if (success) {
if (mDatabase != null) {
try {
mDatabase.close();
} catch (Exception e) {
}
mDatabase.unlock();
}
mDatabase = db;
} else {
if (mDatabase != null) mDatabase.unlock();
if (db != null) db.close();
}
}
}
private SQLiteDatabase getDatabaseLocked(boolean writable) {
if (mDatabase != null) {
if (!mDatabase.isOpen()) {
// Darn! The user closed the database by calling mDatabase.close().
mDatabase = null;
} else if (!writable || !mDatabase.isReadOnly()) {
// The database is already open for business.
return mDatabase;
}
}
if (mIsInitializing) {
throw new IllegalStateException("getDatabase called recursively");
}
SQLiteDatabase db = mDatabase;
try {
mIsInitializing = true;
if (db != null) {
if (writable && db.isReadOnly()) {
db.reopenReadWrite();
}
} else if (mName == null) {
db = SQLiteDatabase.create(null);
} else {
try {
if (DEBUG_STRICT_READONLY && !writable) {
final String path = mContext.getDatabasePath(mName).getPath();
db =
SQLiteDatabase.openDatabase(
path, mFactory, SQLiteDatabase.OPEN_READONLY, mErrorHandler);
} else {
db =
mContext.openOrCreateDatabase(
mName,
mEnableWriteAheadLogging ? Context.MODE_ENABLE_WRITE_AHEAD_LOGGING : 0,
mFactory,
mErrorHandler);
}
} catch (SQLiteException ex) {
if (writable) {
throw ex;
}
Log.e(TAG, "Couldn't open " + mName + " for writing (will try read-only):", ex);
final String path = mContext.getDatabasePath(mName).getPath();
db =
SQLiteDatabase.openDatabase(
path, mFactory, SQLiteDatabase.OPEN_READONLY, mErrorHandler);
}
}
onConfigure(db);
final int version = db.getVersion();
if (version != mNewVersion) {
if (db.isReadOnly()) {
throw new SQLiteException(
"Can't upgrade read-only database from version "
+ db.getVersion()
+ " to "
+ mNewVersion
+ ": "
+ mName);
}
db.beginTransaction();
try {
if (version == 0) {
onCreate(db);
} else {
if (version > mNewVersion) {
onDowngrade(db, version, mNewVersion);
} else {
onUpgrade(db, version, mNewVersion);
}
}
db.setVersion(mNewVersion);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
onOpen(db);
if (db.isReadOnly()) {
Log.w(TAG, "Opened " + mName + " in read-only mode");
}
mDatabase = db;
return db;
} finally {
mIsInitializing = false;
if (db != null && db != mDatabase) {
db.close();
}
}
}
