ክፍሎም ሐወይ documentation አንብባ ! https://pouchdb.com/guides/conflicts.html
Immediate conflicts *Immediate conflicts* can occur with any API that takes a rev or a document with _rev as input – put(), post(), remove(), bulkDocs(), and putAttachment(). They manifest as a 409(conflict) error: On Saturday, July 20, 2019 at 1:45:14 AM UTC-7, Kiflemariam Andom wrote: > > Hi Sander and All, > > Hope your weekend is doing well. Can someone help me please with pouchdb > please. It is driving me nuts. You can see my code here > https://stackblitz.com/edit/angular-akrcz9 > > What happens is I can have any number of app settings so I might update > just one field of the document. And the update can happen from two, three > places at the same time since the app have differnet activities that happen > at the back. My prefered option was to use localStorage but the client > wants all to be stored in pouchdb. I run into 409 error but do see the > changes in the revisions, just not in the document itself. > > > import { Injectable } from "@angular/core"; > > > import PouchDB from "pouchdb"; > > @Injectable() > export class AppService { > private settingsDb; //to store app state > > constructor() { > // indicates if we are in the process of syncing or not. > this.settingsDb = new PouchDB("field-support-app-state", { > auto_compaction: true > }); > } > > updateAppState(fields) { > /* > Create a document if it doesnt exist else update it > if creating a new, set all to default then update as > necessary. > > Fields is dictionary of fields to update > e.g. > { > 'field1':'field1 value' > } > > we can update the fields we want only > */ > > let vm = this; > > const docId = "_local/appState"; > > this.settingsDb.get(docId, function(err, doc) { > if (err) { > // cant get the info so create the document now with all the > fields > console.log("config read error; possibly not found ", err); > let data = { _id: docId }; > data["field1"] = ""; > data["field2"] = ""; > data["field3"] = ""; > > data["lastNewDataDownloadedDisplayedOn"] = ""; > //replace as necessary now > Object.keys(fields).forEach(function(key) { > data[key] = fields[key]; > }); > vm.settingsDb.put(data); > } else { > // document exists already > // so make changes only then put back the whole document > > Object.keys(fields).forEach(function(key) { > doc[key] = fields[key]; > }); > > vm.settingsDb.put(doc); > } > }); > } > } > > > The method would be called from number of places with the field needed for > an update. To illustrate, this is from component.ts: > > import { Component } from '@angular/core'; > import {AppService} from './app.service'; > > @Component({ > selector: 'my-app', > templateUrl: './app.component.html', > styleUrls: [ './app.component.css' ] > }) > export class AppComponent { > name = 'Angular'; > constructor( > public appSerivce: AppService > ) { > > this.appSerivce.updateAppState({ > lastSyncErrorDisplayedon: "" > }) > > this.randomUpdates(); > } > > > > randomUpdates(){ > let fields = ['field1', 'lastUpdatedLocationOn','lastItemMovedOn']; > const vm : any = this; > fields.forEach(field=>{ > > setInterval( > vm.appSerivce.updateAppState({ > field : new Date().toLocaleString() > }) , > > 3000); > > > }); > } > > > > > } > > > What I want is to be able to update fields of the document in a flexible > way. As the app grows, there is a chance a specific omponent or feature > might want to save its own setting and i don't want to create document for > each one tho that is also possible if absolutellly necessary. > > -- You received this message because you are subscribed to the Google Groups "Angular and AngularJS discussion" group. To unsubscribe from this group and stop receiving emails from it, send an email to angular+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/angular/e7c33b9a-e21a-4979-bd4c-8922ef338d44%40googlegroups.com.
