| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| import {Action, ActionReducer} from '@ngrx/store'; |
| import {FetchRequest} from '../../services/domain/paging/fetch-request.model'; |
| import {createSelector} from 'reselect'; |
| |
| export function emptySearchResult(): SearchResult { |
| return { |
| elements: [], |
| totalElements: 0, |
| totalPages: 0 |
| }; |
| } |
| |
| export interface SearchPayload { |
| fetchRequest: FetchRequest; |
| } |
| |
| export interface SearchResult { |
| elements: any[]; |
| totalElements: number; |
| totalPages: number; |
| } |
| |
| export interface SearchState { |
| entities: any[]; |
| totalPages: number; |
| totalElements: number; |
| loading: boolean; |
| fetchRequest: FetchRequest; |
| } |
| |
| const initialState: SearchState = { |
| entities: [], |
| totalPages: 0, |
| totalElements: 0, |
| loading: false, |
| fetchRequest: null |
| }; |
| |
| export const createSearchReducer = (entityName: string, reducer?: ActionReducer<SearchState>) => { |
| return function(state: SearchState = initialState, action: Action): SearchState { |
| |
| switch (action.type) { |
| |
| case `[${entityName}] Search`: { |
| const fetchRequest: FetchRequest = action.payload; |
| |
| return Object.assign({}, state, { |
| fetchRequest, |
| loading: true, |
| entities: [] |
| }); |
| } |
| |
| case `[${entityName}] Search Complete`: { |
| const searchResult: SearchResult = action.payload; |
| |
| return Object.assign({}, state, { |
| entities: searchResult.elements, |
| totalElements: searchResult.totalElements, |
| totalPages: searchResult.totalPages, |
| loading: false |
| }); |
| } |
| |
| default: { |
| // delegate to wrapped reducer |
| if (reducer) { |
| return reducer(state, action); |
| } |
| return state; |
| } |
| } |
| }; |
| }; |
| |
| export const getSearchEntities = (state: SearchState) => state.entities; |
| export const getSearchTotalElements = (state: SearchState) => state.totalElements; |
| export const getSearchTotalPages = (state: SearchState) => state.totalPages; |
| export const getSearchLoading = (state: SearchState) => state.loading; |
| |
| export const getSearchResult = createSelector(getSearchEntities, getSearchTotalElements, getSearchTotalPages, |
| (elements, totalElements, totalPages) => { |
| return { |
| elements, |
| totalElements, |
| totalPages |
| }; |
| }); |