problem: Extracting lists and refer to query table

[Anonymous]

Dear Community,

I have a question concerining extracting lists in Power Query. So in my query I have multiple columns. One of them ist called "TeamID" an contains numbers. Another one is called "statistics" and contains a number of lists. The data is from a football API.

The lists have a structure like this:

"statistics": [

            {

                "id": 27282493,

                "player_id": 25162,

                "team_id": 1016,

                "season_id": 186,

                "has_values": true,

                "position_id": null,

                "jersey_number": 17,

                "details": [

                    {

                        "id": 26869160,

                        "player_statistic_id": 27282493,

                        "type_id": 52,

                        "value": {

                            "total": 1,

                            "goals": 1,

                            "penalties": 0

                        }

                    },

                    },

                    {

                        "id": 2036855,

                        "player_statistic_id": 27282493,

                        "type_id": 321,

                        "value": {

                            "total": 10

                        }

                    },

                    }

                ]

            },

            {

                "id": 27283108,

                "player_id": 25162,

                "team_id": 1016,

                "season_id": 188,

                "has_values": true,

                "position_id": null,

                "jersey_number": 7,

                "details": [

                    {

                        "id": 23724412,

                        "player_statistic_id": 27283108,

                        "type_id": 52,

                        "value": {

                            "total": 4,

                            "goals": 4,

                            "penalties": 0

I would like to add up all the "total" values if the connected "type_id" is 321 (appearances of certain player). Additionally I want to filter by team_id. In the it'll show all the games a player appeared in for one team.

Therefore I've created this code for a new column: = 

List.Sum(List.Transform([statistics], each if [team_id] = 1079 and Record.HasFields(_, "details") then List.Sum(List.Transform(_[details], each if _[type_id] = 321 then _[value][total] else 0)) else 0))

Now my problem: This code works perfectly. But I don't want to go deep into Power Query to change the team_id everytime I change the team. So instead of the absolute number I wanted to connect this part with my column "TeamID" from the query. Like this...

= List.Sum(List.Transform([statistics], each if [team_id] = @Abfrage3[TeamID] and Record.HasFields(_, "details") then List.Sum(List.Transform(_[details], each if _[type_id] = 321 then _[value][total] else 0)) else 0))

But this doesnt work. Everytime I get "0" as a result. It's the same when I try it with a parameter or a similar field in another query. Maybe some of you will have a hint for me.

Thanks in Advance, Greetings, Marvin

[v-jingzhang · Accepted solution]

Hi @Anonymous 

You may try the following code for a new column:

= let vTeamId = [TeamID] in List.Sum(List.Transform([statistics], each if [team_id] = vTeamId and Record.HasFields(_, "details") then List.Sum(List.Transform(_[details], each if _[type_id] = 321 then _[value][total] else 0)) else 0))

Best Regards,
Community Support Team _ Jing
If this post helps, please Accept it as Solution to help other members find it.

[Anonymous]

Thank you so much, you're my hero 😍

[ppm1]

Why not just parse the JSON with Json.Document to simplify things? You may need to add/remove characters to create valid JSON but should still be easier.

Pat