private async ValueTask AddToParentsChildrenCollection(NodeID parentPath, NodeID requested, FileTypes.Ft fileType, IDatabaseSession db)
{
var parentDir = await db.Read(parentPath);
var alreadyPresent = parentDir?.Attributes.Items
.FirstOrDefault(kv => kv.Key.Equals(Attr.Children))
?.Value.Map?.Items?.Any(x => x.Key.Equals(requested)) ?? false;
if (!alreadyPresent)
{
var dataToAdd = new Node
{
Id = parentPath,
Attributes = new Map
{
Items = new List <KeyValue>()
{
Utils.Prop(DateTime.UtcNow.Ticks,
Attr.Children,
new Map
{
Items = new List <KeyValue>()
{
Utils.Prop(DateTime.UtcNow.Ticks, requested,
FileTypes.FromFt(fileType))
}
})
}
}
};
if (parentDir == null)
{
dataToAdd.Attributes.Items.Add(
Utils.Prop(DateTime.UtcNow.Ticks,
Attr.Type, FileTypes.TypeFolder
)
);
}
// Merge these new fields into the existing node.
await db.Merge(dataToAdd);
}
}