public static void CreateAndRegister(AstNode astNode, LoweringContext context)
{
var astQuerySourceNode = astNode as AstQuerySourceNode;
if (astQuerySourceNode != null)
{
var oleDBSource = new OleDBSource(context, astNode) { _oleDBConnection = new OleDBConnection(astQuerySourceNode.Connection) };
// Note: vsabella: workaround for different behavior regarding expressions for OLEDB sources
// versus how it works in Lookups.
if (astQuerySourceNode.Query.QueryType == QueryType.Expression)
{
// Variable name has to be only alphanumeric, more restrictive than astQuerySource Name
string varName = "__" + System.Guid.NewGuid().ToString("N");
var variable = new Variable(varName);
oleDBSource.SqlCommandVarName = "User::" + varName;
variable.TypeCode = System.TypeCode.String;
variable.EvaluateAsExpression = true;
variable.ValueString = astQuerySourceNode.Query.Body;
context.ParentObject.Children.Add(variable);
}
else
{
foreach (AstVariableParameterMappingNode paramNode in astQuerySourceNode.Query.Parameters)
{
var variable = new Variable(paramNode.Variable);
oleDBSource._paramDictionary[paramNode.Name] = variable;
context.ParentObject.Children.Add(variable);
}
}
context.ParentObject.Children.Add(oleDBSource._oleDBConnection);
context.ParentObject.Children.Add(oleDBSource);
}
}
public static void CreateAndRegister(AstNode astNode, LoweringContext context)
{
var astQuerySourceNode = astNode as AstQuerySourceNode;
if (astQuerySourceNode != null)
{
var oleDBSource = new OleDBSource(context, astNode)
{
_oleDBConnection = new OleDBConnection(astQuerySourceNode.Connection)
};
// Note: vsabella: workaround for different behavior regarding expressions for OLEDB sources
// versus how it works in Lookups.
if (astQuerySourceNode.Query.QueryType == QueryType.Expression)
{
// Variable name has to be only alphanumeric, more restrictive than astQuerySource Name
string varName = "__" + System.Guid.NewGuid().ToString("N");
var variable = new Variable(varName);
oleDBSource.SqlCommandVarName = "User::" + varName;
variable.TypeCode = System.TypeCode.String;
variable.EvaluateAsExpression = true;
variable.ValueString = astQuerySourceNode.Query.Body;
context.ParentObject.Children.Add(variable);
}
else
{
foreach (AstVariableParameterMappingNode paramNode in astQuerySourceNode.Query.Parameters)
{
var variable = new Variable(paramNode.Variable);
oleDBSource._paramDictionary[paramNode.Name] = variable;
context.ParentObject.Children.Add(variable);
}
}
context.ParentObject.Children.Add(oleDBSource._oleDBConnection);
context.ParentObject.Children.Add(oleDBSource);
}
}