@netgrif/components-core
Version:
Netgrif Application engine frontend core Angular library
43 lines • 6.55 kB
JavaScript
import { of } from 'rxjs';
import { PaginationParams } from '../../pagination/pagination-params';
/**
* A utility class that mock any pageable endpoint that takes one parameter
*/
export class MockEndpoint {
/**
* The content that is queries by the requests.
*/
content = [];
/**
* @param filter - a filtering argument. This mock ignores it.
* @param params - pagination configuration. The mock extracts the `size` and `page` property to format the result properly.
* @returns an `Observable` containing a properly formatted {@link Page} object.
*
* The `pagination` attributes are filled according to the request and the endpoints [content]{@link MockEndpoint#content}.
*
* If an empty {@link Page} should be returned the returned object has its `content` attribute set to some object
* (to match backend and resource service behavior).
* Otherwise the `content` attribute contains the corresponding subsection fo the [content]{@link MockEndpoint#content} array.
*/
search(filter, params) {
const rp = this.getPagination(params);
const result = this.content.slice(rp.pageSize * rp.pageNumber, rp.pageSize * (rp.pageNumber + 1));
const resultPage = {
pagination: {
size: result.length,
totalElements: this.content.length,
totalPages: Math.ceil(this.content.length / rp.pageSize),
number: rp.pageNumber
}
};
Object.assign(resultPage, { content: result.length !== 0 ? result : {} });
return of(resultPage);
}
getPagination(params) {
return {
pageSize: parseInt(params.get(PaginationParams.PAGE_SIZE), 10),
pageNumber: parseInt(params.get(PaginationParams.PAGE_NUMBER), 10)
};
}
}
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