// Update //
public static UpdatePlan RenderUpdatePlan(Workspace Home, HScriptParser.Crudam_updateContext context)
{
// Get the data source //
DataSet data = VisitorHelper.GetData(Home, context.full_table_name());
// Create expression visitor //
ExpressionVisitor exp_vis = new ExpressionVisitor(null, Home, data.Name, data.Columns, null);
// Get where //
Predicate where = VisitorHelper.GetWhere(exp_vis, context.where_clause());
// Create the key and fnodeset //
Key keys = new Key();
FNodeSet expressions = new FNodeSet();
foreach (HScriptParser.Update_unitContext ctx in context.update_unit())
{
keys.Add(data.Columns.ColumnIndex(ctx.IDENTIFIER().GetText()));
expressions.Add(exp_vis.ToNode(ctx.expression()));
}
return new UpdatePlan(data, keys, expressions, where);
}
