Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | 'use strict'; import * as _ from 'lodash'; import {asyncScheduler} from 'rxjs'; import {filter, throttleTime} from 'rxjs/operators'; import AStore from './a.store'; import EStoreType from '../_enums/store.type.enum'; import observableModel from '../mongodb/functions/observable.model'; import getHrtimeAsNumber from '../functions/performance/get.hrtime.as.number'; require('json-circular-stringify'); // tslint:disable-next-line:variable-name const _getIdFromQuery = (query: any): string => (_.isString(query) ? query : _.get(query, '_id', '').toString()); export default class DocumentStore extends AStore { constructor(model: any, target: string) { super(model, target); this._type = EStoreType.DOCUMENT; Object.setPrototypeOf(this, DocumentStore.prototype); } protected extractFromConfig(): void { super.extractFromConfig(); const {skip = 0} = this._config; this._paging = skip ? {} : {skip, limit: 1}; } public restartSubscription(): void { this.subscription = observableModel(this.model) // .pipe(throttleTime(this._delay, asyncScheduler, {leading: true, trailing: true})) .pipe(filter((change) => this._pipeFilter(change))) .subscribe({ next: (change: any): void => { this.load(change) // .then((): null => null) .catch((e: any): void => this.error(e)); }, error: (e: any): void => this.error(e), complete: (): void => this.complete() }); } protected shouldReload(change: any): boolean { Iif (this.isInitialSubscription(change)) return true; const id: string = _getIdFromQuery(this._query); const {operationType: type, documentKey, updateDescription: description} = change; const key = _.get(documentKey, '_id', '').toString(); switch (type) { case 'delete': return true; case 'insert': return !id; case 'replace': case 'update': { Iif (id && id === key) return true; Iif (!description) return true; Iif (!this.shouldConsiderFields()) return true; const {updatedFields, removedFields} = description; const us: any[] = _.concat(removedFields, _.keys(updatedFields)); const qs: string[] = _.keys(this._fields); return !_.isEmpty(_.intersection(qs, us)); } } return false; } protected async load(change: any): Promise<void> { const startTime: number = getHrtimeAsNumber(); Iif (_.isEmpty(this._config)) return this.emitOne(startTime, this._subscriptionId); Iif (!this.shouldReload(change)) return; // console.log('[@owservable] -> DocumentStore::load', JSON.stringify(change)); const id: string = _getIdFromQuery(this._query); const {operationType: type, documentKey} = change; const key = _.get(documentKey, '_id', '').toString(); Iif (type === 'delete' && id === key) return this.emitDelete(startTime, this._subscriptionId, key); // console.log('[@owservable] -> DB Reload Document for query:', this._query); try { let data; if (!_.isEmpty(this._sort)) data = await this._loadSortedFirstDocument(); else data = id ? await this._loadDocumentById(id) : await this._loadDocument(); Iif (!data) return this.emitOne(startTime, this._subscriptionId); for (const populate of this._populates) { Iif (data?.populate) await data.populate(populate); } Iif (_.isEmpty(this._virtuals)) return this.emitOne(startTime, this._subscriptionId, data.toJSON()); const jsonData: any = _.cloneDeep(_.omit(data.toJSON(), this._virtuals)); for (const virtual of this._virtuals) { jsonData[virtual] = await Promise.resolve(data[virtual]); } this.emitOne(startTime, this._subscriptionId, jsonData); } catch (error) { console.error('[@owservable] -> DocumentStore::load Error:', {change, error}); this.emitError(startTime, this._subscriptionId, error); } } private _pipeFilter(change: any): boolean { Iif (!_.isEmpty(this._sort)) return true; const {operationType: type} = change; Iif ('delete' === type) return true; const {documentKey, fullDocument: document} = change; const key = _.get(documentKey, '_id', '').toString(); Iif (key === _getIdFromQuery(this._query)) return true; return this.testDocument(document); } private async _loadDocumentById(id: string): Promise<any> { return this._model.findById(id, this._fields); } private async _loadSortedFirstDocument(): Promise<any> { const docs: any = await this._model // .find(this._query, this._fields, this._paging) // .collation({locale: 'en'}) .sort(this._sort) // @ts-ignore .setOptions({allowDiskUse: true}); return _.first(docs); } private async _loadDocument(): Promise<any> { return this._model.findOne(this._query, this._fields); } } |