/// <summary>
///
/// </summary>
/// <param name="fn"></param>
/// <returns></returns>
private Join buildJoin(Join fn)
{
var gVal = getValue(FunDefination.fun, _current.Value);
var items = split(FunDefination.splitbyComma, gVal);
// foreach (string item in items) {
var s1 = items[0];
var s2 = items[1];
fn.Datasource = s1;
var relation = items[2].Replace("[", "").Replace("]", "");
var rs = splitWithSpace(relation);
if (rs.Count == 3)
{
var left = rs[0];
var right = rs[2];
var opr = rs[1];
var ld = "";
var ldf = "";
var rd = "";
var rdf = "";
if (Scan(@"(\w*?:\w*)", left))
{
var condition = split(":", left).ToList();
if (condition.Count == 2)
{
ld = condition[0];
ldf = condition[1];
if (s1 != ld && s2 != ld)
{
AddError(Source.Severity.Error, "datasource not exist in the relationship : " + ld, _current.Span);
}
}
else
{
AddError(Source.Severity.Error, "invalid relationship : " + left, _current.Span);
}
}
if (Scan(@"(\w*?:\w*)", right))
{
var condition = split(":", right).ToList();
if (condition.Count == 2)
{
rd = condition[0];
rdf = condition[1];
if (s1 != rd && s2 != rd)
{
AddError(Source.Severity.Error, "datasource not exist in the relationship : " + rd, _current.Span);
}
}
else
{
AddError(Source.Severity.Error, "invalid relationship : " + left, _current.Span);
}
}
if (scanOperator(opr) == Syntax.Query.WhereOperators.none)
{
fn.AddRelation(ld, ldf, rd, rdf, scanOperator(opr));
}
}
//}
return(fn);
}