public override void PerformAfter(InsertStatement node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
m_sql.Append(')');
}
public override void PerformOnValues(InsertStatement node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
m_sql.Append(") VALUES(");
}
public override void PerformBefore(InsertStatement node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
// INTO required by MS Access
m_sql.Append("INSERT INTO ");
}
public INode Clone()
{
InsertStatement insertStatement = new InsertStatement();
if (m_table != null)
{
insertStatement.Table = (DbObject)(m_table.Clone());
}
if (m_columnNames != null)
{
insertStatement.ColumnNames = (AliasedItem)(m_columnNames.Clone());
}
if (m_columnValues != null)
{
insertStatement.ColumnValues = (ExpressionItem)(m_columnValues.Clone());
}
return(insertStatement);
}
public virtual void PerformAfter(InsertStatement node)
{
}
public virtual void PerformOnValues(InsertStatement node)
{
}
public virtual void PerformBefore(InsertStatement node)
{
}
public override void PerformBefore(InsertStatement node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
if (node.ColumnNames == null)
{
throw new InvalidOperationException("Insert has no names.");
}
bool shaving = true;
while (shaving)
{
ExpressionItem headValue = node.ColumnValues;
if (headValue == null)
{
throw new InvalidOperationException(
"Insert statement has too few values.");
}
if (headValue.Expression.Equals(DefaultValue.Value))
{
AliasedItem headColumn = node.ColumnNames.Next;
if (headColumn == null)
{
throw new InvalidOperationException(
"MS Access cannot insert only default values.");
}
node.ColumnNames = headColumn;
node.ColumnValues = headValue.Next;
}
else
{
shaving = false;
}
}
AliasedItem tailColumn = node.ColumnNames;
ExpressionItem tailValue = node.ColumnValues;
while (tailColumn.Next != null)
{
if (tailValue.Next == null)
{
throw new InvalidOperationException("Insert has too few values.");
}
if (tailValue.Next.Expression.Equals(DefaultValue.Value))
{
tailColumn.Next = tailColumn.Next.Next;
tailValue.Next = tailValue.Next.Next;
}
else
{
tailColumn = tailColumn.Next;
tailValue = tailValue.Next;
}
}
base.PerformBefore(node);
}
public override void PerformAfter(InsertStatement node)
{
PopKnownParent(node);
Debug.Assert(m_ancestors.Count == 0);
}
public override void PerformBefore(InsertStatement node)
{
PushParent(node);
}
