public bool Prepare(ISqlProc proc, Action <SqlTableMapper, DbDataReader> parser = null, int?commandTimeout = null)
{
if (state != StateExec.Init)
{
this.Dispose();
}
if (parser != null)
{
base.propertiesParser = parser;
}
LastRow = null;
var conn = proc.OpenConnection();
if (conn == null)
{
return(false);
}
cmd = proc.CreateCommand();
cmd.Connection = conn;
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
if (commandTimeout.HasValue)
{
cmd.CommandTimeout = commandTimeout.Value;
}
cmd.Prepare();
dataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection | CommandBehavior.SingleResult);
state = StateExec.Prepared;
if (dataReader.Read())
{
// First record
(this as IDataMapHelper <object[]>).GetProperties(dataReader);
var helper = this;
object[] objVal = helper.DbRecordArray();
// first record array
dataReader.GetValues(objVal);
LastRow = helper.SetValues(objVal);
return(true);
}
return(false);
}
public static ISqlProc PrepareWithReconnect(this ISqlProc proc, Context db)
{
var conn = proc.Connection;
if (conn == null)
{
proc.Connection = proc.OpenConnection();
}
conn = proc.Connection;
try
{
var dbName = conn.Database;
var cmd = new SqlCommand {
CommandText = "SELECT DB_NAME()"
}; // neutral command
var result = cmd.ExecuteScalar() as string;
}
catch (Exception ex) { proc.LastError = ex; }
return(proc);
}
public static SqlConnection PreparedSqlConnection(this ISqlProc proc)
{
if (proc == null)
{
return(null);
}
if (proc.Connection.IsReady())
{
return(proc.Connection as SqlConnection);
}
proc.Connection = proc.OpenConnection();
proc.CloseOnDispose = true;
if (proc is ISqlProcContext && string.IsNullOrWhiteSpace(proc.Connection.ConnectionString))
{
var procDb = proc as ISqlProcContext;
proc.Connection = procDb.Context.SqlConnection;
}
return(proc.Connection as SqlConnection);
}
public static SqlCommand GetSqlCommandReconnect(this ISqlProc proc)
{
proc.Connection = null;
proc.CloseOnDispose = true;
if (proc is SqlProc)
{
var sqlProc = proc as SqlProc;
if (sqlProc.Context != null)
{
sqlProc.Context.AssureOpen(withCommand: true);
sqlProc.Connection = sqlProc.Context.SqlConnection;
}
else
{
sqlProc.OpenConnection();
}
}
else
{
proc.Connection = proc.OpenConnection();
}
return(proc.CreateCommand() as SqlCommand);
}
