protected override DbCommandDefinition CreateDbCommandDefinition(
DbProviderManifest providerManifest, DbCommandTree commandTree)
{
if (commandTree == null)
throw new ArgumentNullException("commandTree");
SqlGenerator generator = null;
if (commandTree is DbQueryCommandTree)
generator = new SelectGenerator();
else if (commandTree is DbInsertCommandTree)
generator = new InsertGenerator();
else if (commandTree is DbUpdateCommandTree)
generator = new UpdateGenerator();
else if (commandTree is DbDeleteCommandTree)
generator = new DeleteGenerator();
else if (commandTree is DbFunctionCommandTree)
generator = new FunctionGenerator();
string sql = generator.GenerateSQL(commandTree);
EFMySqlCommand cmd = new EFMySqlCommand();
cmd.CommandText = sql;
if (generator is FunctionGenerator)
cmd.CommandType = (generator as FunctionGenerator).CommandType;
SetExpectedTypes(commandTree, cmd);
EdmFunction function = null;
if (commandTree is DbFunctionCommandTree)
function = (commandTree as DbFunctionCommandTree).EdmFunction;
// Now make sure we populate the command's parameters from the CQT's parameters:
foreach (KeyValuePair<string, TypeUsage> queryParameter in commandTree.Parameters)
{
DbParameter parameter = cmd.CreateParameter();
parameter.ParameterName = queryParameter.Key;
parameter.Direction = ParameterDirection.Input;
parameter.DbType = Metadata.GetDbType(queryParameter.Value);
FunctionParameter funcParam;
if (function != null &&
function.Parameters.TryGetValue(queryParameter.Key, false, out funcParam))
{
parameter.ParameterName = funcParam.Name;
parameter.Direction = Metadata.ModeToDirection(funcParam.Mode);
parameter.DbType = Metadata.GetDbType(funcParam.TypeUsage);
}
cmd.Parameters.Add(parameter);
}
// Now add parameters added as part of SQL gen
foreach (DbParameter p in generator.Parameters)
cmd.Parameters.Add(p);
return CreateCommandDefinition(cmd);
}
public void Delete()
{
var command = DeleteGenerator.Generate(new Foo
{
Id = 5,
Foo1 = "foo1",
Foo2 = "foo2"
});
Assert.AreEqual("DELETE FROM Foo WHERE Id = @Id;", command);
}
public async Task <int> SoftDelete <T>(CancellationToken cancellationToken,
int id, SqlTransaction transaction = null)
{
var type = typeof(T);
var query = new DeleteGenerator().GetLogicalDeleteQuery(type, id);
int affectedRowsCount = 0;
using (var connection = _connectionService.Create())
{
using (SqlCommand cmd = connection.CreateCommand())
{
cmd.CommandType = CommandType.Text;
cmd.CommandText = query.Main;
cmd.Transaction = transaction;
affectedRowsCount = await cmd.ExecuteNonQueryAsync(cancellationToken);
}
}
return(affectedRowsCount);
}
private async Task <int> SoftDelete(CancellationToken cancellationToken,
object viewModel, Type type, ReflectionTable reflectionTable, SqlTransaction transaction = null)
{
var query = new DeleteGenerator()
.GetLogicalDeleteQuery(reflectionTable, viewModel, type);
int affectedRowsCount = 0;
using (var connection = _connectionService.Create())
{
using (SqlCommand cmd = connection.CreateCommand())
{
cmd.CommandType = CommandType.Text;
cmd.CommandText = query.Main;
cmd.Transaction = transaction;
cmd.Parameters.AddRange(query.Params.ToArray());
affectedRowsCount = await cmd.ExecuteNonQueryAsync(cancellationToken);
}
}
return(affectedRowsCount);
}
/// <summary>
/// Delete a single row
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="connection"></param>
/// <param name="param">object</param>
/// <param name="table">Optional table name</param>
/// <param name="commandTimeout">commandTimeout</param>
/// <param name="transaction">transaction</param>
/// <returns>Numbers of rows affected</returns>
public static int DeleteSingle <T>(this IDbConnection connection, T param, int?commandTimeout = null, IDbTransaction transaction = null)
{
if (param == null)
{
throw new ArgumentNullException("param can not be null.");
}
if (param is IEnumerable)
{
throw new ArgumentException("param can not be a IEnumerable.");
}
var type = typeof(T);
string cachedCommand;
var value = StringCache.TryGetCommand(type, Operation.Delete, out cachedCommand);
if (string.IsNullOrEmpty(cachedCommand))
{
cachedCommand = DeleteGenerator.Generate(param);
StringCache.Add(type, Operation.Delete, cachedCommand);
}
return(connection.Execute(cachedCommand, param, commandTimeout: commandTimeout, transaction: transaction));
}
protected override System.Data.Entity.Core.Common.DbCommandDefinition CreateDbCommandDefinition(
System.Data.Entity.Core.Common.DbProviderManifest providerManifest, DbCommandTree commandTree)
{
if (commandTree == null)
{
throw new ArgumentNullException("commandTree");
}
SqlGenerator generator = null;
if (commandTree is DbQueryCommandTree)
{
generator = new SelectGenerator();
}
else if (commandTree is DbInsertCommandTree)
{
generator = new InsertGenerator();
}
else if (commandTree is DbUpdateCommandTree)
{
generator = new UpdateGenerator();
}
else if (commandTree is DbDeleteCommandTree)
{
generator = new DeleteGenerator();
}
else if (commandTree is DbFunctionCommandTree)
{
generator = new FunctionGenerator();
}
string sql = generator.GenerateSQL(commandTree);
EFMySqlCommand cmd = new EFMySqlCommand();
cmd.CommandText = sql;
if (generator is FunctionGenerator)
{
cmd.CommandType = (generator as FunctionGenerator).CommandType;
}
SetExpectedTypes(commandTree, cmd);
EdmFunction function = null;
if (commandTree is DbFunctionCommandTree)
{
function = (commandTree as DbFunctionCommandTree).EdmFunction;
}
// Now make sure we populate the command's parameters from the CQT's parameters:
foreach (KeyValuePair <string, TypeUsage> queryParameter in commandTree.Parameters)
{
DbParameter parameter = cmd.CreateParameter();
parameter.ParameterName = queryParameter.Key;
parameter.Direction = ParameterDirection.Input;
parameter.DbType = Metadata.GetDbType(queryParameter.Value);
#if NET_45_OR_GREATER
if (queryParameter.Value.EdmType is PrimitiveType &&
((PrimitiveType)queryParameter.Value.EdmType).PrimitiveTypeKind == PrimitiveTypeKind.Geometry)
{
((MySqlParameter)parameter).MySqlDbType = MySqlDbType.Geometry;
}
#endif
FunctionParameter funcParam;
if (function != null &&
function.Parameters.TryGetValue(queryParameter.Key, false, out funcParam))
{
parameter.ParameterName = funcParam.Name;
parameter.Direction = Metadata.ModeToDirection(funcParam.Mode);
parameter.DbType = Metadata.GetDbType(funcParam.TypeUsage);
}
cmd.Parameters.Add(parameter);
}
// Now add parameters added as part of SQL gen
foreach (DbParameter p in generator.Parameters)
{
cmd.Parameters.Add(p);
}
return(CreateCommandDefinition(cmd));
}
public void Delete()
{
var generator = new DeleteGenerator <CompositeIdSample>();
Assert.AreEqual("DELETE FROM `composite_id_table` WHERE `Id1` = ?p0 AND `Id2` = ?p1;", generator.GetSql());
}
