/// <summary>
/// Generate the SQL UPDATE that updates a row
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateUpdateRowString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory.Dialect, Factory)
.SetTableName(qualifiedTableName)
.AddColumns(ElementColumnNames, elementColumnIsSettable, ElementType);
if (hasIdentifier)
{
update.AddWhereFragment(new string[] { IdentifierColumnName }, IdentifierType, " = ");
}
else if (HasIndex && !indexContainsFormula)
{
update.AddWhereFragment(KeyColumnNames, KeyType, " = ")
.AddWhereFragment(IndexColumnNames, IndexType, " = ");
}
else
{
string[] cnames = ArrayHelper.Join(KeyColumnNames, ElementColumnNames, elementColumnIsInPrimaryKey);
SqlType[] ctypes = ArrayHelper.Join(KeyType.SqlTypes(Factory), ElementType.SqlTypes(Factory), elementColumnIsInPrimaryKey);
update.AddWhereFragment(cnames, ctypes, " = ");
}
if (Factory.Settings.IsCommentsEnabled)
update.SetComment("update collection row " + Role);
return update.ToSqlCommandInfo();
}
protected SqlString GenerateUpdateString(bool[] includeProperty, object[] oldFields)
{
SqlUpdateBuilder builder = GenerateUpdate(includeProperty);
if (OptimisticLockMode > OptimisticLockMode.Version && oldFields != null)
{
bool[] includeInWhere = OptimisticLockMode == OptimisticLockMode.All ?
PropertyUpdateability :
includeProperty;
for (int i = 0; i < HydrateSpan; i++)
{
if (includeInWhere[i])
{
if (oldFields[i] == null)
{
foreach (string column in propertyColumnNames[i])
{
builder.AddWhereFragment(column + " is null");
}
}
else
{
builder.AddWhereFragment(propertyColumnNames[i], PropertyTypes[i], "=");
}
}
}
}
return(builder.ToSqlString());
}
/// <summary>
/// Generate the SQL UPDATE that updates a particular row's foreign
/// key to null
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateDeleteRowString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory.Dialect, Factory);
update.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, "null");
if (HasIndex && !indexContainsFormula)
{
update.AddColumns(IndexColumnNames, "null");
}
if (Factory.Settings.IsCommentsEnabled)
{
update.SetComment("delete one-to-many row " + Role);
}
//use a combination of foreign key columns and pk columns, since
//the ordering of removal and addition is not guaranteed when
//a child moves from one parent to another
update.AddWhereFragment(KeyColumnNames, KeyType, " = ")
.AddWhereFragment(ElementColumnNames, ElementType, " = ");
return(update.ToSqlCommandInfo());
}
/// <summary>
/// Generate the SQL UPDATE that updates all the foreign keys to null
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateDeleteString()
{
var update = new SqlUpdateBuilder(Factory.Dialect, Factory)
.SetTableName(qualifiedTableName)
.AddColumns(JoinColumnNames, "null");
if (CollectionType.UseLHSPrimaryKey)
{
update.SetIdentityColumn(KeyColumnNames, KeyType);
}
else
{
var ownerPersister = (IOuterJoinLoadable)OwnerEntityPersister;
update.SetJoin(ownerPersister.TableName, KeyColumnNames, KeyType, JoinColumnNames, ownerPersister.GetPropertyColumnNames(CollectionType.LHSPropertyName));
}
if (HasIndex)
{
update.AddColumns(IndexColumnNames, "null");
}
if (HasWhere)
{
update.AddWhereFragment(sqlWhereString);
}
if (Factory.Settings.IsCommentsEnabled)
{
update.SetComment("delete one-to-many " + Role);
}
return(update.ToSqlCommandInfo());
}
/// <summary>
/// Generate the SQL UPDATE that updates a row
/// </summary>
/// <returns></returns>
protected override SqlString GenerateUpdateRowString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(factory)
.SetTableName(qualifiedTableName)
.AddColumns(ElementColumnNames, ElementType);
if (hasIdentifier)
{
update.AddWhereFragment(rowSelectColumnNames, rowSelectType, " = ");
}
else
{
update.AddWhereFragment(KeyColumnNames, KeyType, " = ")
.AddWhereFragment(rowSelectColumnNames, rowSelectType, " = ");
}
return(update.ToSqlString());
}
/// <summary>
/// Generate the SQL UPDATE that updates all the foreign keys to null
/// </summary>
/// <returns></returns>
protected override SqlString GenerateDeleteString( )
{
SqlUpdateBuilder update = new SqlUpdateBuilder(factory)
.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, "null")
.SetIdentityColumn(KeyColumnNames, KeyType);
if (HasIndex)
{
update.AddColumns(IndexColumnNames, "null");
}
if (HasWhere)
{
update.AddWhereFragment(sqlWhereString);
}
return(update.ToSqlString());
}
public void UpdateStringSqlTest()
{
Configuration cfg = new Configuration();
ISessionFactory factory = cfg.BuildSessionFactory();
ISessionFactoryImplementor factoryImpl = (ISessionFactoryImplementor)factory;
SqlUpdateBuilder update = new SqlUpdateBuilder(factoryImpl.Dialect, factoryImpl);
update.SetTableName("test_update_builder");
update.AddColumns(new string[] { "intColumn" }, NHibernateUtil.Int32);
update.AddColumns(new string[] { "longColumn" }, NHibernateUtil.Int64);
update.AddColumn("literalColumn", false, (ILiteralType)NHibernateUtil.Boolean);
update.AddColumn("stringColumn", 5.ToString());
update.SetIdentityColumn(new string[] { "decimalColumn" }, NHibernateUtil.Decimal);
update.SetVersionColumn(new string[] { "versionColumn" }, (IVersionType)NHibernateUtil.Int32);
update.AddWhereFragment("a=b");
SqlCommandInfo sqlCommand = update.ToSqlCommandInfo();
Assert.AreEqual(CommandType.Text, sqlCommand.CommandType);
string falseString = factoryImpl.Dialect.ToBooleanValueString(false);
string expectedSql =
"UPDATE test_update_builder SET intColumn = ?, longColumn = ?, literalColumn = " + falseString + ", stringColumn = 5 WHERE decimalColumn = ? AND versionColumn = ? AND a=b";
Assert.AreEqual(expectedSql, sqlCommand.Text.ToString(), "SQL String");
SqlType[] actualParameterTypes = sqlCommand.ParameterTypes;
Assert.AreEqual(4, actualParameterTypes.Length, "Four parameters");
SqlType[] expectedParameterTypes = new SqlType[]
{
SqlTypeFactory.Int32,
SqlTypeFactory.Int64,
SqlTypeFactory.Decimal,
SqlTypeFactory.Int32
};
Assert.AreEqual(expectedParameterTypes[0], actualParameterTypes[0], "firstParam Type");
Assert.AreEqual(expectedParameterTypes[1], actualParameterTypes[1], "secondParam Type");
Assert.AreEqual(expectedParameterTypes[2], actualParameterTypes[2], "thirdParam Type");
Assert.AreEqual(expectedParameterTypes[3], actualParameterTypes[3], "fourthParam Type");
}
/// <summary>
/// Generate the SQL UPDATE that updates all the foreign keys to null
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateDeleteString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory.Dialect, Factory)
.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, "null")
.SetIdentityColumn(KeyColumnNames, KeyType);
if (HasIndex)
{
update.AddColumns(IndexColumnNames, "null");
}
if (HasWhere)
{
update.AddWhereFragment(sqlWhereString);
}
if (Factory.Settings.IsCommentsEnabled)
{
update.SetComment("delete one-to-many " + Role);
}
return(update.ToSqlCommandInfo());
}
