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38
README.md
38
README.md
@ -66,16 +66,19 @@ So to get to get access to a specific collection you document
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@smartdata.Collection(smartdataDb)
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class MyObject extends smartdata.DbDoc<MyObject> {
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// read the next block about DbDoc
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@smartdata.svDb() property1: string; // @smartdata.svDb() marks the property for db save
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@smartdata.svDb()
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property1: string; // @smartdata.svDb() marks the property for db save
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property2: number; // this one is not marked, so it won't be save upon calling this.save()
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constructor(optionsArg: { property1: string; property2: number }) {
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super();
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constructor() {
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super(); // the super call is important ;) But you probably know that.
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}
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}
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// start to instantiate instances of classes from scratch or database
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let localObject = new MyObject({
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const localObject = new MyObject({
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property1: 'hi',
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property2: 2
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});
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@ -93,27 +96,38 @@ MyObject.getInstance<MyObject>({
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represents a individual document in a collection
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and thereby is ideally suited to extend the class you want to actually store.
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**sStore** instances of classes to Db:
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### CRUD operations
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smartdata supports full CRUD operations
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**Store** or **Update** instances of classes to MongoDB:
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DbDoc extends your class with the following methods:
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- `.save()` will save (or update) the object you call it on only. Any referenced non-savable objects will not get stored.
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- `.saveDeep()` does the same like `.save()`.
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- async `.save()` will save (or update) the object you call it on only. Any referenced non-savable objects will not get stored.
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- async `.saveDeep()` does the same like `.save()`.
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In addition it will look for properties that reference an object
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that extends DbDoc as well and call .saveDeep() on them as well.
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Loops are prevented
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**Get** a new class instance from a Doc in the DB:
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DbDoc exposes a static method that allows you specify a filter to retrieve a cloned class of the one you used to that doc at some point later in time. Yes, let that sink in a minute :)
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**Get** a new class instance from MongoDB:
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DbDoc exposes a static method that allows you specify a filter to retrieve a cloned class of the one you used to that doc at some point later in time:
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* static async `.getInstance({ /* filter props here */ })` gets you an instance that has the data of the first matched document as properties.
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* static async `getInstances({ /* filter props here */ })` get you an array instances (one instance for every matched document).
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**Delete** instances from MongoDb:
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smartdata extends your class with a method to easily delete the doucment from DB:
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* async `.delete()`will delete the document from DB.
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So you can just call `.getInstance({ /* filter props here */ })`.
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## TypeScript
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How does TypeScript play into this?
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Since you define your classes in TypeScript and types flow through smartdata in a generic way
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you should get all the Intellisense and type checking you love when using smartdata.
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smartdata itself also bundles typings.
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So you don't need to install any additional types when importing smartdata.
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smartdata itself also bundles typings. You don't need to install any additional types for smartdata.
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For further information read the linked docs at the top of this readme.
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2
package-lock.json
generated
2
package-lock.json
generated
@ -1,6 +1,6 @@
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{
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"name": "@pushrocks/smartdata",
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"version": "3.1.18",
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"version": "3.1.23",
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"lockfileVersion": 1,
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"requires": true,
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"dependencies": {
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@ -1,6 +1,6 @@
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{
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"name": "@pushrocks/smartdata",
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"version": "3.1.18",
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"version": "3.1.23",
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"private": false,
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"description": "do more with data",
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"main": "dist/index.js",
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35
test/test.ts
35
test/test.ts
@ -109,6 +109,41 @@ tap.test('should be able to delete an instance of car', async () => {
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expect(myCar2.color).to.equal('red');
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});
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// tslint:disable-next-line: max-classes-per-file
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@smartdata.Collection(() => {
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return testDb;
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})
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class Truck extends smartdata.SmartDataDbDoc<Car> {
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@smartdata.unI()
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public id: string = smartunique.shortId();
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@smartdata.svDb()
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public color: string;
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@smartdata.svDb()
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public brand: string;
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constructor(colorArg: string, brandArg: string) {
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super();
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this.color = colorArg;
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this.brand = brandArg;
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}
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}
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tap.test('should store a new Truck', async () => {
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const truck = new Truck('blue', 'MAN');
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await truck.save();
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const myTruck = await Truck.getInstance<Truck>({color: 'blue'});
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myTruck.id = 'foo';
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await myTruck.save();
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const myTruck2 = await Truck.getInstance<Truck>({color: 'blue'});
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console.log(myTruck2);
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});
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// =======================================
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// close the database connection
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// =======================================
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await this.checkDoc(dbDocArg);
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const identifiableObject = await dbDocArg.createIdentifiableObject();
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const saveableObject = await dbDocArg.createSavableObject();
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console.log(identifiableObject);
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console.log(saveableObject);
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const updateableObject: any = {};
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for (const key of Object.keys(saveableObject)) {
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if (identifiableObject[key]) {
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@ -129,7 +127,6 @@ export class SmartdataCollection<T> {
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}
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updateableObject[key] = saveableObject[key];
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}
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console.log(updateableObject);
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this.mongoDbCollection.updateOne(
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identifiableObject,
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{ $set: updateableObject },
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@ -141,7 +138,9 @@ export class SmartdataCollection<T> {
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await this.init();
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await this.checkDoc(dbDocArg);
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const identifiableObject = await dbDocArg.createIdentifiableObject();
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this.mongoDbCollection.deleteOne(identifiableObject);
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await this.mongoDbCollection.deleteOne(identifiableObject, {
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w: 1
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});
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}
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/**
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@ -103,17 +103,15 @@ export class SmartDataDbDoc<T> {
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for (const item of foundDocs) {
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const newInstance = new this();
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newInstance.creationStatus = 'db';
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for (const key in item) {
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if (key !== 'id') {
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for (const key of Object.keys(item)) {
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newInstance[key] = item[key];
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}
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}
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returnArray.push(newInstance);
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}
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return returnArray;
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}
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static async getInstance<T>(filterArg): Promise<T> {
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public static async getInstance<T>(filterArg): Promise<T> {
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const result = await this.getInstances<T>(filterArg);
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if (result && result.length > 0) {
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return result[0];
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Reference in New Issue
Block a user