/// <summary>
/// Generates a collection of sql statements to delete the business
/// object from the database
/// </summary>
/// <returns>Returns a sql statement collection</returns>
public IEnumerable <ISqlStatement> Generate()
{
var statements = new List <ISqlStatement>();
//AddRelationshipDeleteStatements(statementCollection);
SqlStatement deleteSql = new SqlStatement(_connection);
deleteSql.Statement = new StringBuilder(
@"DELETE FROM " + _connection.SqlFormatter.DelimitTable(StatementGeneratorUtils.GetTableName(_bo)) +
" WHERE " + StatementGeneratorUtils.PersistedDatabaseWhereClause((BOKey)_bo.ID, deleteSql));
statements.Add(deleteSql);
IClassDef currentClassDef = _bo.ClassDef;
while (currentClassDef.IsUsingClassTableInheritance())
{
while (currentClassDef.SuperClassClassDef.SuperClassDef != null &&
currentClassDef.SuperClassClassDef.SuperClassDef.ORMapping == ORMapping.SingleTableInheritance)
{
currentClassDef = currentClassDef.SuperClassClassDef;
}
deleteSql = new SqlStatement(_connection);
deleteSql.Statement.Append(
"DELETE FROM " +
_connection.SqlFormatter.DelimitTable(currentClassDef.SuperClassClassDef.TableName) +
" WHERE " +
StatementGeneratorUtils.PersistedDatabaseWhereClause(BOPrimaryKey.GetSuperClassKey((ClassDef)currentClassDef, _bo), deleteSql));
statements.Add(deleteSql);
currentClassDef = currentClassDef.SuperClassClassDef;
}
return(statements);
}
public void TestSuperClassKey()
{
IBOKey msuperKey = BOPrimaryKey.GetSuperClassKey((ClassDef)Circle.GetClassDef(), objCircle);
Assert.IsTrue(msuperKey.Contains("ShapeID"), "Super class key should contain the ShapeID property");
Assert.AreEqual(1, msuperKey.Count, "Super class key should only have one prop");
Assert.AreEqual(msuperKey["ShapeID"].Value, objCircle.ID["CircleID"].Value,
"ShapeID and CircleID should be the same");
}
public void TestSuperClassKey()
{
IBOKey msuperKey = BOPrimaryKey.GetSuperClassKey((ClassDef)FilledCircleInheritsCircleNoPK.GetClassDef(), _filledCircle);
Assert.IsFalse(msuperKey.Contains("CircleID"), "Super class key should not contain the CircleID property");
Assert.IsTrue(msuperKey.Contains("ShapeID"), "Super class key should contain the ShapeID property");
Assert.AreEqual(1, msuperKey.Count, "Super class key should only have one prop");
Assert.AreEqual(_filledCircle.Props["ShapeID"].Value, //msuperKey["ShapeID"].Value,
_filledCircle.ID["FilledCircleID"].Value,
"ShapeID and FilledCircleID should be the same");
}
/// <summary>
/// Generates an "update" sql statement for the properties in the
/// business object
/// </summary>
/// <param name="tableName">The table name</param>
/// <param name="propsToInclude">A collection of properties to update,
/// if the previous include-all boolean was not set to true</param>
/// <param name="isSuperClassStatement">Whether a super-class is involved</param>
/// <param name="currentClassDef">The current class definition</param>
private void GenerateSingleUpdateStatement(string tableName, IBOPropCol propsToInclude,
bool isSuperClassStatement, ClassDef currentClassDef)
{
_updateSql = new SqlStatement(_connection);
_updateSql.Statement.Append(
@"UPDATE " + _connection.SqlFormatter.DelimitTable(tableName) + " SET ");
int includedProps = 0;
foreach (BOProp prop in _bo.Props.SortedValues)
{
if (propsToInclude.Contains(prop.PropertyName))
{
PrimaryKeyDef primaryKeyDef = (PrimaryKeyDef)_bo.ClassDef.PrimaryKeyDef ?? (PrimaryKeyDef)_bo.ID.KeyDef;
if (prop.IsDirty &&
((primaryKeyDef.IsGuidObjectID && !primaryKeyDef.Contains(prop.PropertyName)) ||
!primaryKeyDef.IsGuidObjectID))
{
includedProps++;
_updateSql.Statement.Append(_connection.SqlFormatter.DelimitField(prop.DatabaseFieldName));
_updateSql.Statement.Append(" = ");
//prop.PropDef.GetDataMapper().GetDatabaseValue(prop.Value);
_updateSql.AddParameterToStatement(prop.Value);
_updateSql.Statement.Append(", ");
}
}
}
_updateSql.Statement.Remove(_updateSql.Statement.Length - 2, 2); //remove the last ", "
if (isSuperClassStatement)
{
_updateSql.Statement.Append(" WHERE " + StatementGeneratorUtils.PersistedDatabaseWhereClause(BOPrimaryKey.GetSuperClassKey(currentClassDef, _bo), _updateSql));
}
else
{
_updateSql.Statement.Append(" WHERE " + StatementGeneratorUtils.PersistedDatabaseWhereClause((BOKey)_bo.ID, _updateSql));
}
if (includedProps > 0)
{
_statements.Add(_updateSql);
}
}