public override int ExecuteSql(string sql, QueryParameterCollection parameters = null)
{
lock (this) // although sqlite3 is thread-safe, we need to make sure that the last_insert_rowid is correct
{
var stopwatch = SqlLogger != null?Stopwatch.StartNew() : null;
var stmt = CreateCommand(sql, parameters);
try
{
int returnCode = SQLitePCL.raw.sqlite3_step(stmt);
if (returnCode == SQLitePCL.raw.SQLITE_ROW)
{
return(0); // quietly eat any rows being returned
}
if (returnCode != SQLitePCL.raw.SQLITE_DONE)
{
throw new SqliteException((SqliteReturnCode)returnCode, (SqliteExtendedErrorCode)SQLitePCL.raw.sqlite3_extended_errcode(DbHandle), SQLitePCL.raw.sqlite3_errmsg(DbHandle).utf8_to_string());
}
_lastRowId.Value = SQLitePCL.raw.sqlite3_last_insert_rowid(DbHandle);
return(SQLitePCL.raw.sqlite3_changes(DbHandle));
}
finally
{
SQLitePCL.raw.sqlite3_finalize(stmt);
SqlLogger?.LogSql(sql, parameters?.ToDictionary(p => SqlDialect.CreateParameterExpression(p.Name), p => p.Value), stopwatch?.Elapsed ?? TimeSpan.Zero);
}
}
}
public override IEnumerable <Dictionary <string, object> > ExecuteSqlReader(string sql, QueryParameterCollection parameters)
{
var stopwatch = SqlLogger != null?Stopwatch.StartNew() : null;
var stmt = CreateCommand(sql, parameters);
try
{
for (;;)
{
var returnCode = SQLitePCL.raw.sqlite3_step(stmt);
if (returnCode == SQLitePCL.raw.SQLITE_BUSY)
{
Task.Delay(100).Wait();
continue;
}
if (returnCode == SQLitePCL.raw.SQLITE_DONE)
{
break;
}
if (returnCode != SQLitePCL.raw.SQLITE_ROW)
{
throw new SqliteException((SqliteReturnCode)returnCode, (SqliteExtendedErrorCode)SQLitePCL.raw.sqlite3_extended_errcode(DbHandle), SQLitePCL.raw.sqlite3_errmsg(DbHandle).utf8_to_string());
}
Dictionary <string, object> record = new Dictionary <string, object>();
for (int i = 0; i < SQLitePCL.raw.sqlite3_column_count(stmt); i++)
{
string fieldName = SQLitePCL.raw.sqlite3_column_name(stmt, i).utf8_to_string();
var columnType = SQLitePCL.raw.sqlite3_column_type(stmt, i);
switch (columnType)
{
case SQLitePCL.raw.SQLITE_BLOB:
record[fieldName] = SQLitePCL.raw.sqlite3_column_blob(stmt, i).ToArray();
break;
case SQLitePCL.raw.SQLITE_TEXT:
record[fieldName] = SQLitePCL.raw.sqlite3_column_text(stmt, i).utf8_to_string();
break;
case SQLitePCL.raw.SQLITE_FLOAT:
record[fieldName] = SQLitePCL.raw.sqlite3_column_double(stmt, i);
break;
case SQLitePCL.raw.SQLITE_INTEGER:
record[fieldName] = SQLitePCL.raw.sqlite3_column_int64(stmt, i);
break;
case SQLitePCL.raw.SQLITE_NULL:
record[fieldName] = null;
break;
}
}
yield return(record);
}
}
finally
{
SQLitePCL.raw.sqlite3_finalize(stmt);
}
SqlLogger?.LogSql(sql, parameters?.ToDictionary(p => SqlDialect.CreateParameterExpression(p.Name), p => p.Value), stopwatch?.Elapsed ?? TimeSpan.Zero);
}
