/// <summary>
/// Read a grid of "ts" and "val" data.
/// </summary>
/// <param name="grid">Grid to read.</param>
/// <returns>List of history items.</returns>
public static IEnumerable <HaystackHistoryItem> ReadGrid(HaystackGrid grid)
{
var ts = grid.Column("ts");
var val = grid.Column("val");
return(grid.Rows
.Select(row => new HaystackHistoryItem(row)));
}
private static string ReadStringOrNull(HaystackGrid grid, string tagName)
{
if (!grid.Meta.ContainsKey(tagName))
{
return(null);
}
var dis = grid.Meta[tagName];
return(dis is HaystackString str ? str.Value : null);
}
public static HGrid Map(HaystackGrid value)
{
return(new HGrid(value));
}
public HaystackRow(HaystackGrid grid, params HaystackValue[] values)
: base(new Lazy <IDictionary <string, HaystackValue> >(() => ToDictionary(grid, values)))
{
Grid = grid;
}
internal HGrid(HDict meta, List <HCol> cols, List <List <HVal> > rowLists)
{
Source = new HaystackGrid(cols.Select(M.Map).ToList(), rowLists.Select(l => l.Select(M.Map).ToArray()).ToList(), M.Map(meta));
}
public HGrid(HaystackGrid source)
{
Source = source;
}
public HaystackException(HaystackGrid grid)
: base(ReadStringOrNull(grid, "dis") ?? "server side error")
{
Grid = grid;
}