topic Re: multi selection with AND operator in Developer

multi selection with AND operator

Anonymous — Sat, 31 Aug 2019 16:39:27 GMT

hi community

I have 2 selectionId,

1. select the city with value "Malang"

2. select the month with value "3"

this is the my code

                let list : ISelectionId[] = [];
                list.push(this.model.dataPoints[0].selectionId); // city == Malang
                list.push(this.model.dataPoints[index].selectionId); // month == 3

                // console.log('sebelum', this.model.dataPoints[index].selectionId);
                // let includes = this.model.dataPoints[index].selectionId.includes(this.model.dataPoints[0].selectionId);
                // console.log('includes', includes);
                // console.log('hasil includes', this.model.dataPoints[index].selectionId);

                // ISQExpr.and

                selectionManager.select(list, true).then((ids: ISelectionId[]) => {
                    console.log('hasilnya', ids);
                });

but the result are "select all city with month == 3 or city == Malang"

how to make multiple selectionId with and operator?

the expected result only show month == 3 && city == Malang

Re: multi selection with AND operator

dm-p — Mon, 02 Sep 2019 01:58:03 GMT

Hi @Anonymous,

I can't tell from your snippet how your selectionIds are generated, I believe you'll need to apply both columns to your ISelectionIdBuilder in order to generate one that intersects both categoricial values.

Not sure if you've previously referred to this page, but it covers how you might chain the createSelectionId method with multiple values (for instance, .withCategory() and .withSeries()).

If you're not having much luck with this, perhaps you can share your capabilities.json and your view model mapping code? We can have a look and see if we can get a little further with it for you.

Regards,

Daniel

Re: multi selection with AND operator

Anonymous — Mon, 02 Sep 2019 03:50:17 GMT

hi @dm-p

I'm already solve this, the key is not how the manager to select but how the builder to create selectionId, right as your comment.

the hard way with matrix are how to create selectionId with row parents and columns parent.

this is my function with recursive children

if (x.values) {
                let keys = Object.keys(x.values);
                keys.forEach(k => {

                    let keyNum = Number(k);
                    let builder = host.createSelectionIdBuilder();

                    copyParents.forEach(p => {
                        builder.withMatrixNode(p, matrix.rows.levels);
                    });
                    
                    let colRef = columnsRef[keyNum];
                    colRef.nodes.forEach(p => {
                        builder.withMatrixNode(p, matrix.columns.levels);
                    });


                    let _td: DataListSelection = {
                        value: x.values[k],
                        selectionId: builder.createSelectionId(),
                    }
                    listSelectionPerRow.push(_td);

                });
            }