public static EFQuery compare(SelectionComparison comparison, string fieldName, object rightHandSide)
{
return(new EFQuery
{
selectionComparison = comparison,
fieldName = fieldName,
rightHandSide = rightHandSide as EFQuery ?? EFQuery.constant(rightHandSide)
});
}
private Expression getStaticCallMethod(
SelectionComparison selectionComparison,
MemberExpression member,
Expression converted)
{
if (selectionComparison == SelectionComparison.Like)
{
var method = typeof(SqlFunctions).GetMethod("PatIndex");
var methodExpression = Expression.Call(method, converted, member);
var zeroExpression = Expression.Constant(0, typeof(int?));
var greaterThanExpression = Expression.GreaterThan(methodExpression, zeroExpression);
return(greaterThanExpression);
}
throw new InvalidExpressionException(String.Format("Invalid SelectionComparison {0}", selectionComparison));
}
