public override OeSelectItem Translate(ExpandedNavigationSelectItem item)
{
if (_navigationNextLink && Cache.UriCompare.OeComparerExtension.GetNavigationNextLink(item))
{
return(null);
}
Type itemType;
IEdmNavigationProperty navigationProperty = (((NavigationPropertySegment)item.PathToNavigationProperty.LastSegment).NavigationProperty);
OeSelectItem navigationItem = _navigationItem.FindChildrenNavigationItem(navigationProperty);
if (navigationItem == null)
{
navigationItem = new OeSelectItem(_navigationItem, item, _skipToken);
_navigationItem.AddNavigationItem(navigationItem);
Expression innerSource = GetInnerSource(navigationItem, item);
_source = _joinBuilder.Build(_source, innerSource, _navigationItem.GetJoinPath(), navigationProperty);
itemType = OeExpressionHelper.GetCollectionItemType(innerSource.Type);
}
else
{
itemType = _visitor.EdmModel.GetClrType(navigationItem.EntitySet.EntityType());
}
var selectTranslator = new OeSelectTranslator(_joinBuilder, navigationItem);
_source = selectTranslator.BuildSelect(item.SelectAndExpand, _source, _navigationNextLink, _skipToken);
return(navigationItem);
}
private Expression BuildJoin(Expression source, IList <OeNavigationSelectItem> navigationItems)
{
for (int i = 1; i < navigationItems.Count; i++)
{
if (!navigationItems[i].AlreadyUsedInBuildExpression)
{
navigationItems[i].AlreadyUsedInBuildExpression = true;
ODataPathSegment segment = navigationItems[i].NavigationSelectItem.PathToNavigationProperty.LastSegment;
IEdmNavigationProperty navigationProperty = (((NavigationPropertySegment)segment).NavigationProperty);
Expression innerSource = GetInnerSource(navigationItems[i]);
source = _joinBuilder.Build(_edmModel, source, innerSource, navigationItems[i].Parent.GetJoinPath(), navigationProperty);
}
}
_joinBuilder.Visitor.ChangeParameterType(source);
return(source);
}
private Expression BuildJoin(Expression source, IList <OeNavigationSelectItem> navigationItems)
{
for (int i = 1; i < navigationItems.Count; i++)
{
OeNavigationSelectItem navigationItem = navigationItems[i];
if (navigationItem.Parent == null)
{
throw new InvalidOperationException("Parent is null must be first element in " + nameof(navigationItems));
}
if (!navigationItem.AlreadyUsedInBuildExpression)
{
navigationItem.AlreadyUsedInBuildExpression = true;
ODataPathSegment segment = navigationItem.NavigationSelectItem.PathToNavigationProperty.LastSegment;
IEdmNavigationProperty navigationProperty = (((NavigationPropertySegment)segment).NavigationProperty);
Expression innerSource = GetInnerSource(navigationItem);
source = _joinBuilder.Build(_edmModel, source, innerSource, navigationItem.Parent.GetJoinPath(), navigationProperty);
}
}
_joinBuilder.Visitor.ChangeParameterType(source);
return(source);
}
