internal override List <GremlinVariable> FetchVarsFromCurrAndChildContext()
{
List <GremlinVariable> variableList = new List <GremlinVariable>();
variableList.AddRange(RepeatContext.FetchVarsFromCurrAndChildContext());
if (RepeatCondition.EmitContext != null)
{
variableList.AddRange(RepeatCondition.EmitContext.FetchVarsFromCurrAndChildContext());
}
if (RepeatCondition.TerminationContext != null)
{
variableList.AddRange(RepeatCondition.TerminationContext.FetchVarsFromCurrAndChildContext());
}
return(variableList);
}
public List <WSelectScalarExpression> GetOuterSelectList(ref Dictionary <GremlinVariableProperty, string> map)
{
List <WSelectScalarExpression> outerSelectList = new List <WSelectScalarExpression>();
var allVariablesInRepeatContext = RepeatContext.FetchVarsFromCurrAndChildContext();
foreach (var variable in allVariablesInRepeatContext)
{
if (variable is GremlinSelectedVariable)
{
var repeatInnerVar = (variable as GremlinSelectedVariable);
if (repeatInnerVar.IsFromSelect &&
!allVariablesInRepeatContext.Contains(repeatInnerVar.RealVariable))
{
List <GremlinVariable> outerVarList = RepeatContext.Select(repeatInnerVar.SelectKey);
GremlinVariable outerVar = null;
switch (repeatInnerVar.Pop)
{
case GremlinKeyword.Pop.last:
outerVar = outerVarList.Last();
break;
case GremlinKeyword.Pop.first:
outerVar = outerVarList.First();
break;
}
if (repeatInnerVar != outerVar)
{
foreach (var property in repeatInnerVar.ProjectedProperties)
{
var aliasName = GenerateKey();
outerSelectList.Add(
SqlUtil.GetSelectScalarExpr(
outerVar.GetVariableProperty(property).ToScalarExpression(), aliasName));
map[repeatInnerVar.GetVariableProperty(property)] = aliasName;
}
}
}
}
}
return(outerSelectList);
}
public List <WSelectScalarExpression> GetRepeatPathOuterVariableList(ref Dictionary <GremlinVariableProperty, string> map)
{
List <WSelectScalarExpression> pathOuterVariableList = new List <WSelectScalarExpression>();
var allVariablesInRepeatContext = RepeatContext.FetchVarsFromCurrAndChildContext();
foreach (var variable in allVariablesInRepeatContext)
{
if (variable is GremlinPathVariable)
{
var pathVariable = (variable as GremlinPathVariable);
foreach (var stepVariable in pathVariable.PathList)
{
if (!allVariablesInRepeatContext.Contains(stepVariable.GremlinVariable))
{
var aliasName = GenerateKey();
pathOuterVariableList.Add(SqlUtil.GetSelectScalarExpr(stepVariable.ToScalarExpression(), aliasName));
map[stepVariable] = aliasName;
}
}
}
}
return(pathOuterVariableList);
}