public runQuery()

in analytics-example-widget/scripts/data/ViewQueries.ts [47:86]
30 lines of code
4 McCabe index (conditional complexity)

    public runQuery(): IPromise<GroupedWorkItemAggregation[]> {
        return ODataClient.getInstance().then((client) => {

            let endDate: string = this.formatDate(this.burndownQueryOptions.endDate);
            let startDate: string = this.formatDate(this.burndownQueryOptions.startDate);

            let entity = "WorkItemSnapshot";
            let teamFilter = `Teams/any(t:t/TeamSK eq ${this.burndownQueryOptions.teamId})`;
            let typeFilter = `(WorkItemType eq '${this.burndownQueryOptions.workItemType}')`;
            //Apply a filter to select work bounded by the supplied dates
            let timeFilter = `(DateValue ge ${startDate}Z and DateValue le ${endDate}Z)`;
            
            let filter = `${teamFilter} and ${typeFilter} and ${timeFilter}`;
            if (this.burndownQueryOptions.fields != null && this.burndownQueryOptions.fields.length > 0) {
                filter += ` and ${this.makeFilters(this.burndownQueryOptions.fields)}`;
            }
            let groupFields = `DateSK, StateCategory`;

            let selectedAggregation = this.burndownQueryOptions.aggregation;
            
            let aggregationMode = selectedAggregation.aggregationMode;
            let aggregationSumValue = selectedAggregation.queryableName;
            let aggregation = ``;

            if (aggregationMode == AggregationMode.sum) {
                aggregation = `${aggregationSumValue} with sum`;
            } else {
                aggregation = `$count`;
            }

            aggregation += ` as AggregatedValue`;
            let aggregationQuery = `${entity}?$apply=filter(${filter})/groupby((${groupFields}),aggregate(${aggregation}))`;


            let fullQueryUrl = client.generateProjectLink(this.burndownQueryOptions.projectId, aggregationQuery);
            return client.runGetQuery(fullQueryUrl).then((results: GroupedWorkItemAggregation) => {
                return results["value"];
            });
        });
    }