// allows only one statement in the sql string
public static sqlite3_stmt prepare(this sqlite3 db, string sql, params object[] a)
{
sqlite3_stmt s = db.prepare(sql);
s.bind(a);
return(s);
}
private sqlite3_stmt BuildCommand(sqlite3 db, string sql, object[] paramArgs)
{
sqlite3_stmt command = null;
try
{
if (!IsOpen)
{
if (Open(Path) == false)
{
throw new CouchbaseLiteException("Failed to Open " + Path, StatusCode.DbError);
}
}
int err = raw.sqlite3_prepare_v2(db, sql, out command);
if (err != raw.SQLITE_OK)
{
Log.E(Tag, "sqlite3_prepare_v2: " + err);
}
if (paramArgs.Length > 0 && command != null && err != raw.SQLITE_ERROR)
{
command.bind(paramArgs);
}
}
catch (Exception e)
{
Log.E(Tag, "Error when build a sql " + sql + " with params " + paramArgs, e);
throw;
}
return(command);
}
private sqlite3_stmt BuildCommand(sqlite3 db, string sql, object[] paramArgs)
{
if (db == null)
{
Log.To.Database.E(TAG, "db cannot be null in BuildCommand, throwing...");
throw new ArgumentNullException("db");
}
if (!IsOpen)
{
throw Misc.CreateExceptionAndLog(Log.To.Database, StatusCode.BadRequest, TAG,
"BuildCommand called on closed database");
}
sqlite3_stmt command = null;
try {
lock (Cursor.StmtDisposeLock) {
LastErrorCode = raw.sqlite3_prepare_v2(db, sql, out command);
}
if (LastErrorCode != raw.SQLITE_OK || command == null)
{
Log.To.Database.E(TAG, "sqlite3_prepare_v2: {0}", LastErrorCode);
}
if (paramArgs != null && paramArgs.Length > 0 && command != null && LastErrorCode != raw.SQLITE_ERROR)
{
command.bind(paramArgs);
}
} catch (CouchbaseLiteException) {
Log.To.Database.E(TAG, "Error when building sql '{0}' with params {1}, rethrowing...", sql,
new SecureLogJsonString(paramArgs, LogMessageSensitivity.PotentiallyInsecure));
throw;
} catch (Exception e) {
throw Misc.CreateExceptionAndLog(Log.To.Database, e, TAG,
"Error when building sql '{0}' with params {1}", sql,
new SecureLogJsonString(paramArgs, LogMessageSensitivity.PotentiallyInsecure));
}
return(command);
}
public void test_explicit_prepare()
{
using (sqlite3 db = ugly.open(":memory:"))
{
db.exec("CREATE TABLE foo (x int);");
const int num = 7;
using (sqlite3_stmt stmt = db.prepare("INSERT INTO foo (x) VALUES (?)"))
{
for (int i = 0; i < num; i++)
{
stmt.reset();
stmt.clear_bindings();
stmt.bind(1, i);
stmt.step();
}
}
int c = db.query_scalar <int>("SELECT COUNT(*) FROM foo");
Assert.AreEqual(c, num);
}
}
private sqlite3_stmt BuildCommand(sqlite3 db, string sql, object[] paramArgs)
{
if (db == null)
{
throw new ArgumentNullException("db");
}
sqlite3_stmt command = null;
try
{
if (!IsOpen)
{
Open(Path);
}
lock (Cursor.StmtDisposeLock)
{
LastErrorCode = raw.sqlite3_prepare_v2(db, sql, out command);
}
if (LastErrorCode != raw.SQLITE_OK || command == null)
{
Log.E(TAG, "sqlite3_prepare_v2: " + LastErrorCode);
}
if (paramArgs != null && paramArgs.Length > 0 && command != null && LastErrorCode != raw.SQLITE_ERROR)
{
command.bind(paramArgs);
}
}
catch (Exception e)
{
Log.E(TAG, "Error when build a sql " + sql + " with params " + paramArgs, e);
throw;
}
return(command);
}
private sqlite3_stmt BuildCommand(sqlite3 db, string sql, object[] paramArgs)
{
if (db == null)
{
throw new ArgumentNullException("db");
}
if (!IsOpen)
{
throw new CouchbaseLiteException("BuildCommand called on closed database", StatusCode.BadRequest);
}
sqlite3_stmt command = null;
try {
lock (Cursor.StmtDisposeLock) {
LastErrorCode = raw.sqlite3_prepare_v2(db, sql, out command);
}
if (LastErrorCode != raw.SQLITE_OK || command == null)
{
Log.E(TAG, "sqlite3_prepare_v2: " + LastErrorCode);
}
if (paramArgs != null && paramArgs.Length > 0 && command != null && LastErrorCode != raw.SQLITE_ERROR)
{
command.bind(paramArgs);
}
} catch (CouchbaseLiteException) {
Log.E(TAG, "Error when building sql '{0}' with params {1}", sql, Manager.GetObjectMapper().WriteValueAsString(paramArgs));
throw;
} catch (Exception e) {
throw new CouchbaseLiteException(String.Format("Error when building sql '{0}' with params {1}", sql,
Manager.GetObjectMapper().WriteValueAsString(paramArgs)), e);
}
return(command);
}
/// <summary>
/// Avoids the additional database trip that using SqliteCommandBuilder requires.
/// </summary>
/// <returns>The insert command.</returns>
/// <param name="table">Table.</param>
/// <param name="values">Values.</param>
/// <param name="conflictResolutionStrategy">Conflict resolution strategy.</param>
sqlite3_stmt GetInsertCommand(String table, ContentValues values, ConflictResolutionStrategy conflictResolutionStrategy)
{
if (!IsOpen)
{
Open(Path);
}
var builder = new StringBuilder("INSERT");
if (conflictResolutionStrategy != ConflictResolutionStrategy.None)
{
builder.Append(" OR ");
builder.Append(conflictResolutionStrategy);
}
builder.Append(" INTO ");
builder.Append(table);
builder.Append(" (");
// Append our content column names and create our SQL parameters.
var valueSet = values.ValueSet();
var valueBuilder = new StringBuilder();
var index = 0;
var args = new object[valueSet.Count];
foreach (var column in valueSet)
{
if (index > 0)
{
builder.Append(",");
valueBuilder.Append(",");
}
builder.AppendFormat("{0}", column.Key);
valueBuilder.Append("?");
args[index] = column.Value;
index++;
}
builder.Append(") VALUES (");
builder.Append(valueBuilder);
builder.Append(")");
var sql = builder.ToString();
sqlite3_stmt command = null;
if (args != null)
{
Log.D(Tag, "Preparing statement: '{0}' with values: {1}", sql, String.Join(", ", args.Select(o => o == null ? "null" : o.ToString()).ToArray()));
}
else
{
Log.D(Tag, "Preparing statement: '{0}'", sql);
}
command = _writeConnection.prepare(sql);
command.bind(args);
return(command);
}
