internal static string ParseOrderBy(string expression, CSSchema schema, string tableAlias, CSJoinList joinList)
{
//joinList = new CSJoinList();
if (expression.Trim().Length < 1)
return expression;
string parsedExpression = "";
string[] terms = expression.Split(',');
foreach (string term in terms)
{
if (term.Length < 1)
continue;
bool ascending = true;
string fieldName = term;
if (term.EndsWith("-"))
ascending = false;
if (term.EndsWith("+") || term.EndsWith("-"))
fieldName = term.Substring(0, term.Length - 1);
if (parsedExpression.Length > 1)
parsedExpression += ",";
parsedExpression += ParseFilter(fieldName, schema, tableAlias, joinList);
if (!ascending)
parsedExpression += " DESC";
}
return parsedExpression;
}
internal static string Parse(CSSchema schema, string input, string tableAlias, CSJoinList joins)
{
if (input == "")
return input;
List<Token> tokens = PreParse(input);
QueryExpression rootQuery = new QueryExpression(schema,tableAlias);
rootQuery.Joins = joins;
QueryExpression finalQuery = Parse(rootQuery, tokens, 0, tokens.Count);
return finalQuery.Expression;
}
internal static string ParseFilter(string expressionText, CSSchema schema, string tableAlias, CSJoinList joins)
{
return Parse(schema, expressionText, tableAlias, joins);
}
