static IEnumerable <dynamic> ExecuteReaderDynamicHelper(IDbConnection connection, string query, object parameter, CommandType commandType, CommandBehavior commandBehavior)
{
using (var exec = new DbExecutor(connection))
{
foreach (var item in exec.ExecuteReaderDynamic(query, parameter, commandType, commandBehavior))
{
yield return(item);
}
}
}
/// <summary>Executes and returns the first column, first row.<para>When done dispose connection.</para></summary>
/// <param name="connection">Database connection.</param>
/// <typeparam name="T">Result type.</typeparam>
/// <param name="query">SQL code.</param>
/// <param name="parameter">PropertyName parameterized to PropertyName. if null then no use parameter.</param>
/// <param name="commandType">Command Type.</param>
/// <returns>Query results of first column, first row.</returns>
public static T ExecuteScalar <T>(IDbConnection connection, string query,
object parameter = null, CommandType commandType = CommandType.Text)
{
Contract.Requires <ArgumentNullException>(connection != null);
Contract.Requires <ArgumentException>(!String.IsNullOrEmpty(query));
using (var exec = new DbExecutor(connection))
{
return(exec.ExecuteScalar <T>(query, parameter, commandType));
}
}
/// <summary>Delete by object's PropertyName.<para>When done dispose connection.</para></summary>
/// <param name="connection">Database connection.</param>
/// <param name="tableName">Target database's table.</param>
/// <param name="whereCondition">Where condition extracted from PropertyName.</param>
/// <param name="parameterSymbol">Command parameter symbol. SqlServer = '@', MySql = '?', Oracle = ':'</param>
/// <returns>Rows affected.</returns>
public static int Delete(IDbConnection connection, string tableName, object whereCondition, char parameterSymbol = '@')
{
Contract.Requires <ArgumentNullException>(connection != null);
Contract.Requires <ArgumentException>(!String.IsNullOrEmpty(tableName));
Contract.Requires <ArgumentNullException>(whereCondition != null);
using (var exec = new DbExecutor(connection, parameterSymbol))
{
return(exec.Delete(tableName, whereCondition));
}
}
/// <summary>Insert by object's PropertyName.<para>When done dispose connection.</para></summary>
/// <param name="connection">Database connection.</param>
/// <param name="tableName">Target database's table.</param>
/// <param name="insertItem">Table's column name extracted from PropertyName.</param>
/// <param name="parameterSymbol">Command parameter symbol. SqlServer = '@', MySql = '?', Oracle = ':'</param>
/// <returns>Rows affected.</returns>
public static int Insert(IDbConnection connection, string tableName, object insertItem, char parameterSymbol = '@')
{
Contract.Requires <ArgumentNullException>(connection != null);
Contract.Requires <ArgumentException>(!String.IsNullOrEmpty(tableName));
Contract.Requires <ArgumentNullException>(insertItem != null);
using (var exec = new DbExecutor(connection, parameterSymbol))
{
return(exec.Insert(tableName, insertItem));
}
}
static IEnumerable <T> SelectHelper <T>(IDbConnection connection, string query, object parameter, CommandType commandType)
where T : new()
{
using (var exec = new DbExecutor(connection))
{
foreach (var item in exec.Select <T>(query, parameter, commandType))
{
yield return(item);
}
}
}
public static DataTable GetTable(DbProviderFactory factory, string connectionString, string sqlQuery, object parameter = null, CommandType commandType = CommandType.Text)
{
#region Validation
Contract.Requires <ArgumentNullException>(factory != null);
Contract.Requires <ArgumentException>(!string.IsNullOrEmpty(sqlQuery));
Contract.Requires <ArgumentException>(!string.IsNullOrEmpty(connectionString));
#endregion
var conn = factory.CreateConnection();
conn.ConnectionString = connectionString;
Contract.Assume(conn != null);
using (var exec = new DbExecutor(conn))
{
return(exec.GetTable(factory, sqlQuery, parameter, commandType));
}
}
