smartdata/dist/smartdata.classes.db.js

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"use strict";
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const plugins = require("./smartdata.plugins");
const lik_1 = require("lik");
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class Db {
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constructor(dbUrlArg, dbTypeArg = 'mongodb') {
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this.collections = new lik_1.Objectmap();
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this.dbType = dbTypeArg;
this.dbUrl = dbUrlArg;
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}
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// basic connection stuff ----------------------------------------------
/**
* connects to the database that was specified during instance creation
*/
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connect() {
let done = plugins.q.defer();
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if (this.dbType === 'mongodb') {
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);
});
}
else if (this.dbType === 'nedb') {
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this.db = null;
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}
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return done.promise;
}
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/**
* closes the connection to the databse
*/
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close() {
let done = plugins.q.defer();
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if (this.dbType === 'mongodb') {
this.db.close();
}
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plugins.beautylog.ok(`disconnected to database at ${this.dbUrl}`);
done.resolve();
return done.promise;
}
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// advanced communication with the database --------------------------------
/**
* gets a collection by name: string
*/
getCollectionByName(nameArg) {
let done = plugins.q.defer();
let resultCollection = this.collections.find((dbCollectionArg) => {
return dbCollectionArg.name === nameArg;
});
if (resultCollection !== null) {
done.resolve(resultCollection);
}
return done.promise;
}
;
addCollection(dbCollectionArg) {
this.collections.add(dbCollectionArg);
}
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}
exports.Db = Db;
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