Aggregations

The AggregationsService is responsible for handling aggregation-related operations in the application. It provides methods to load more aggregation items, open aggregation nodes, and retrieve sorted aggregations based on a query name.

note

The functionality for retrieving sorted aggregations based on a query name is provided by the getAuthorizedFilters method in the AppStore, not in this service. See the AppStore documentation for details on retrieving sorted aggregations.

Functions

loadMore()

Loads more items for a given aggregation.

Parameters

Parameter	Type	Description
query	Partial<Query>	The query object containing the current query parameters.
aggregation	Aggregation	The aggregation object for which more items need to be loaded.
audit	AuditEvents	(Optional) Audit events to be recorded.

Returns

Type	Description
Observable<Aggregation>	An observable that emits the updated aggregation with more items.

open()

Opens a node in a tree aggregation.

Parameters

Parameter	Type	Description
query	Partial<Query>	The query object containing the current query parameters.
aggregation	TreeAggregation	The tree aggregation object containing the node to be opened.
item	TreeAggregationNode	The node to be opened.

Returns

Type	Description
Observable<TreeAggregation>	An observable that emits the updated tree aggregation with the node opened.

Example

import { AggregationsService } from './services/aggregations.service';

constructor(private aggregationsService: AggregationsService) {}

loadMoreAggregations() {
  const query = { /* query parameters */ };
  const aggregation = { /* aggregation object */ };
  
  this.aggregationsService.loadMore(query, aggregation).subscribe(updatedAggregation => {
    console.log(updatedAggregation);
  });
}

openAggregationNode() {
  const query = { /* query parameters */ };
  const aggregation = { /* tree aggregation object */ };
  const item = { /* tree aggregation node */ };
  
  this.aggregationsService.open(query, aggregation, item).subscribe(updatedAggregation => {
    console.log(updatedAggregation);
  });
}

// To get sorted aggregations, use the AppStore instead
getAuthorizedFilters() {
  const route = this.router.routerState.root;
  const sortedAggregations = this.appStore.getAuthorizedFilters(route);
  console.log(sortedAggregations);
}