Create more than one database and add defered creation in service and not in Root Module

[DadvDadv]

Discussed in https://github.com/assuncaocharles/ngx-indexed-db/discussions/294

^{Originally posted by DadvDadv January 12, 2022} Hi, I d'nt figure how to create more than one database (not table), i would like to create a database by domains :

db1-users logs files

db2-catalog logs files items

and so on

Thx

---

Improvements :

• Create more than one database
• Deferd the database creation in service and not in root module

Use case :

• Create database by domain
• Create database dynamicly base on other services

[aparzi]

Hi @assuncaocharles, deferd the database creation in service and not in root module is a breaking change?

[DadvDadv]

I don't think so, creating the db in root should be possible, and we should be able to add or update database in service if we need to.

Ex : in app.module.ts

NgxIndexedDBModule.forRoot({ name: 'catalog', version: 1, objectStoresMeta: [{ store: 'articles', storeConfig: { keyPath: 'id', autoIncrement: false }, storeSchema: [ { name: 'articleType_Id', keypath: 'articleType_Id', options: { unique: false } }, { name: 'timeStamp', keypath: '_ts', options: { unique: false } }, ]
}}

In my application , for some raison i need to create an other Database depending on the userName (for example) :

In users.service.ts

@Injectable({ providedIn: 'root' }) export class UsersService {

constructor( private authentificationService : AuthentificationService, private dbService: NgxIndexedDBService) { }

createHistoryLog(){

this.dbService.createDatabase({ //<= new method name: this.authentificationService.currentUser.uniqueId , //<= Dynamic Database Name version: 1, objectStoresMeta: [{ store: 'historyLogs', storeConfig: { keyPath: 'id', autoIncrement: false }, storeSchema: [
{ name: 'timeStamp', keypath: '_ts', options: { unique: false } }, ] } } } );

I know i can add an index UserName in my object store but it's not convenient for my use case.

The two implementations should be side by side, it's an improvment not a breaking change for me

[DadvDadv]

You should probably add the need to register the empty module :

before : NgxIndexedDBModule.forRoot(...)

after : NgxIndexedDBModule.forRoot(...) OR NgxIndexedDBModule -- (alone)

[aparzi]

Hi @DadvDadv, perfect, if so then yes. I understood you wanted more.

[SDAdham]

Hi, I tried to just add the module NgxIndexedDBModule without forRoot in app module but I get No provider for NgxIndexedDBService.

Can you please help explain in details how can we defer database creation to service rather to be created starting from the AppModule?

[DadvDadv]

I think this is not done already, i was asking for add this in a futur release

[assuncaocharles]

Hey everyone, yeah, this looks like a nice feature to be added. Definitely will come in the next versions, if anyone has some free time before I have feel free to take action on this one.

[aparzi]

Hi @assuncaocharles, this issue I think it can be closed, given that the possibility of having more databases has been offered