public static List <BranchMeter> BranchMeterLink(List <VM_Branch> branches, List <VM_Meter> meters)
{
// 支路组装出层级，但列表依然是全支路，而不是定级支路
var v = branches.Select(b =>
{
VM_Branch_Child c = b.MapTo <VM_Branch, VM_Branch_Child>();
c.Childs = new List <VM_Branch_Child>();
return(c);
})
.ToDictionary(b => b.ID, b => b);
foreach (VM_Branch_Child branch in v.Values)
{
if (branch.ParentID != null)
{
v[branch.ParentID.Value].Childs.Add(branch);
}
}
// 支路和仪表是一对一的
Dictionary <int, VM_Meter> branch_meter_dict = meters.ToDictionary(m => m.BranchID, m => m);
List <BranchMeter> branchMeters = new List <BranchMeter>();
foreach (VM_Branch_Child branch in v.Values)
{
branchMeters.AddRange(GetBranchMeters(branch.ID, branch, branch_meter_dict));
}
return(branchMeters);
}
private static IEnumerable <BranchMeter> GetBranchMeters(int branch_id, VM_Branch_Child branch, Dictionary <int, VM_Meter> branch_meter_dict)
{
if (branch_meter_dict.ContainsKey(branch.ID))
{
// 支路有表，则以当前支路的表计为准
return(new BranchMeter[]
{
new BranchMeter {
BranchID = branch_id, MeterSN = branch_meter_dict[branch.ID].SN, PID = branch.PID
}
});
}
else
{
// 支路没有表，则统计子支路之和
List <BranchMeter> branchMeters = new List <BranchMeter>();
foreach (VM_Branch_Child child in branch.Childs)
{
branchMeters.AddRange(GetBranchMeters(branch_id, child, branch_meter_dict));
}
return(branchMeters);
}
}