62 lines
1.8 KiB
TypeScript
62 lines
1.8 KiB
TypeScript
import * as plugins from './smartdata.plugins'
|
|
import { Objectmap } from 'lik'
|
|
|
|
import { DbCollection } from './smartdata.classes.dbcollection'
|
|
|
|
export type TConnectionStatus = 'disconnected' | 'connected' | 'failed'
|
|
|
|
export class Db {
|
|
dbUrl: string
|
|
db: plugins.mongodb.Db
|
|
status: TConnectionStatus
|
|
collections = new Objectmap<DbCollection<any>>()
|
|
|
|
constructor(dbUrl: string) {
|
|
this.dbUrl = dbUrl
|
|
}
|
|
|
|
// basic connection stuff ----------------------------------------------
|
|
|
|
/**
|
|
* connects to the database that was specified during instance creation
|
|
*/
|
|
connect(): plugins.q.Promise<any> {
|
|
let done = plugins.q.defer()
|
|
plugins.mongodb.MongoClient.connect(this.dbUrl, (err, db) => {
|
|
if (err) { console.log(err) }
|
|
plugins.assert.equal(null, err)
|
|
this.db = db
|
|
plugins.beautylog.success(`connected to database at ${this.dbUrl}`)
|
|
done.resolve(this.db)
|
|
})
|
|
return done.promise
|
|
}
|
|
|
|
/**
|
|
* closes the connection to the databse
|
|
*/
|
|
close(): plugins.q.Promise<any> {
|
|
let done = plugins.q.defer()
|
|
this.db.close()
|
|
plugins.beautylog.ok(`disconnected to database at ${this.dbUrl}`)
|
|
done.resolve()
|
|
return done.promise
|
|
}
|
|
|
|
// advanced communication with the database --------------------------------
|
|
|
|
/**
|
|
* gets a collection by name: string
|
|
*/
|
|
getCollectionByName<T>(nameArg: string): plugins.q.Promise<DbCollection<T>> {
|
|
let done = plugins.q.defer<DbCollection<any>>()
|
|
let resultCollection = this.collections.find((dbCollectionArg) => {
|
|
return dbCollectionArg.name === nameArg
|
|
})
|
|
if (resultCollection !== null) {
|
|
done.resolve(resultCollection)
|
|
}
|
|
return done.promise
|
|
};
|
|
}
|