https://i.sstatic.net/4Fi7V.jpg
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After creating a service, I tried to use it within an Ionic modal. However, when attempting to instantiate the service, I encountered the error highlighted in the second image. Can anyone provide some insight on how to resolve this issue? Thank you!
Make sure to always include the keyword private when declaring your dependencies in the constructor of your DBService. This automatically adds it as a class member, eliminating the need for redundant assignments like this.dbservice = dbservice.
constructor(private viewCtrl: ViewController,
private nav: NavController,
private dbservice: DBService) {
this.priority = "high";
}
Don't forget to also add DBService to the providers array either in your bootstrap call:
bootstrap(App, [/* ..., */ DBService]);
or within your root component (App?):
@Component({
providers: [/* ..., */ DBService],
templateUrl: ...
})
export class App {
In your DBServive, be sure to move the Storage variable outside of the constructor function to prevent Angular from attempting DI resolution:
@Injectable()
export class DBService {
private storage: Storage;
constructor() {
storage = new Storage(SqlStorage);
...
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