Comments (14)
johngonzalez
commented on May 27, 2024
1
+1
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gsc-dev
commented on May 27, 2024
1
And this is how to test:
Document.startup() is required so the functionality can be started after PeerDB observers are initialised.
A setTimout is also needed so the effect of the observers can be seen on the tests:
import { Meteor } from 'meteor/meteor';
import { Person, Post } from './Model.js';
Document.startup(() => { // eslint-disable-line
Person.documents.remove({});
Post.documents.remove({});
console.log('\n\n=== Inserting Person. ===.\n');
const personId = Person.documents.insert({
name: 'Jane',
surname: 'Brown',
username: 'jane.brown',
displayName: 'JJ',
});
let person = Person.documents.findOne(personId);
console.log('Person: ', person);
console.log('Person - fullName: ', person.fullName('name'));
console.log('Person - updateUpdatedAt: ', person.updateUpdatedAt);
console.log('\n\n=== Inserting Post... ===\n');
const postId = Post.documents.insert({
title: '10 best restaurants in London',
author: person,
});
let post = Post.documents.findOne(postId);
console.log('post: ', post);
console.log('\n\n=== Updating Person.. ===\n');
Person.documents.update({ _id: personId }, {
username: 'Janny',
displayName: 'Deanna Troi-Riker',
});
Meteor.setTimeout(() => {
person = Person.documents.findOne(personId);
console.log('Person: ', person);
post = Post.documents.findOne(postId);
console.log('\nPost: ', post);
}, 300);
});
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rclai
commented on May 27, 2024
Yes, I am considering using PeerDB.
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gogibob
commented on May 27, 2024
Plain JS examples will be very usefull.
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dpatte
commented on May 27, 2024
+1
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fabiodr
commented on May 27, 2024
+1
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JakeHartnell
commented on May 27, 2024
I'm making an attempt to convert our Peerdb code to ES6 here: CommonGarden/Grow-IoT#189
Haven't got it working quite yet, but perhaps it's a start? Anyone made any individual progress on this?
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janat08
commented on May 27, 2024
So maybe a simple post here with reference to API and it's counterpart in js would suffice. There's decaffeinate, but it looks dodgy judging by jake's commit for translation.
@ is this, that should be inside the static property called initClass according to it.
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janat08
commented on May 27, 2024
Or I suppose that given that you're basically defining a schema, CS is way to go. If running generator use "`"/backtick for generator property value of a function that you define with JS:
generators: `generators => {
generators.slug = this.GeneratedField('self', ['title'], function(fields) {
if (!fields.title) {
return [fields._id, undefined];
} else {
return [fields._id, `prefix-${ fields.title.toLowerCase() }-suffix`];
}
});
return generators;
}`
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gsc-dev
commented on May 27, 2024
+1
Could you provide a simple example?
Is this library still being maintained as by Meteor 1.5?
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mitar
commented on May 27, 2024
It is. It is so stable that there is no need to do much. :-)
Sadly, I do not have time at the moment to provide examples.
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gsc-dev
commented on May 27, 2024
Tried the following but I couldn't understand how to add the ReferenceFields as the entire Person object is inserted in the collection and the Post embedded document doesn't update when displayName is updated in the Person instance.
// Model.js
export class Model extends Document { // eslint-disable-line
// Constructor
static initClass() {
this.Meta({
abstract: true,
});
}
// Class methods
static verboseName() {
return this.Meta._name.toLowerCase();
}
}
Model.initClass();
export class Person extends Model {
static initClass() {
this.Meta({
name: 'Person',
});
}
fullName = () => {
return this.name + ' ' + this.surname;
}
}
Person.initClass();
export class Post extends Model {
// Constructor
static initClass() {
this.Meta({
name: 'Post',
fields: () => {
return {
author: this.ReferenceField(Person, ['username', 'displayName']),
subscribers: [this.ReferenceField(Person)],
reviewers: [this.ReferenceField(Person, ['username', 'displayName'])],
}
},
});
}
fullName = () => {
return this.name + ' ' + this.surname;
}
}
Post.initClass();
// index.js
import { Person, Post} from './Model.js';
console.log('\n\n=== Inserting Person. ===.\n');
const newPerson = new Person();
newPerson.name = 'Jane';
newPerson.surname = 'Brown';
newPerson.username = 'jane.brown';
newPerson.displayName = 'JJ';
Person.documents.remove({});
let personId = Person.documents.insert(newPerson);
let person = Person.documents.findOne(personId);
console.log('Person: ', person);
console.log('Person - fullName: ', person.fullName('name'));
console.log('Person - updateUpdatedAt: ', person.updateUpdatedAt);
console.log('\n\n=== Inserting Post... ===\n');
const newPost = new Post();
newPost.title = '10 best restaurants in London';
newPost.author = person;
Post.documents.remove({});
let postId = Post.documents.insert({newPost});
let post = Post.documents.findOne(postId);
console.log('post: ', post);
console.log('\n\n=== Updating Person.. ===\n');
Person.documents.update({_id: personId}, {displayName: 'Deanna Troi-Riker'});
person = Person.documents.findOne(personId);
console.log('Person: ', person);
post = Post.documents.findOne(postId);
console.log('\nPost: ', post);
Results:
import { Person, Post} from './Model.js';
console.log('\n\n=== Inserting Person. ===.\n');
const newPerson = new Person();
newPerson.name = 'Jane';
newPerson.surname = 'Brown';
newPerson.username = 'jane.brown';
newPerson.displayName = 'JJ';
Person.documents.remove({});
let personId = Person.documents.insert(newPerson);
let person = Person.documents.findOne(personId);
console.log('Person: ', person);
console.log('Person - fullName: ', person.fullName('name'));
console.log('Person - updateUpdatedAt: ', person.updateUpdatedAt);
console.log('\n\n=== Inserting Post... ===\n');
const newPost = new Post();
newPost.title = '10 best restaurants in London';
newPost.author = person;
Post.documents.remove({});
let postId = Post.documents.insert({newPost});
let post = Post.documents.findOne(postId);
console.log('post: ', post);
console.log('\n\n=== Updating Person.. ===\n');
Person.documents.update({_id: personId}, {displayName: 'Deanna Troi-Riker'});
person = Person.documents.findOne(personId);
console.log('Person: ', person);
post = Post.documents.findOne(postId);
console.log('\nPost: ', post);
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gsc-dev
commented on May 27, 2024
Hi @mitar would you be able to clarify how to insert the references in the collections?
I couldn't make it work even in coffescript. The references don't get updated!
class Person extends Document
@Meta
name: 'Person'
class Post extends Document
@Meta
name: 'Post'
fields: =>
# We can reference other document
author: @ReferenceField Person, ['username', 'displayName']
# Or an array of documents
subscribers: [@ReferenceField Person]
reviewers: [@ReferenceField Person, ['username', 'displayName']]
console.log '\n\nTESTINNG PEERDB'
Person.documents.remove
Post.documents.remove
personId = Person.documents.insert
name: 'Jane'
surname: 'Brown'
username: 'jane.brown'
displayName: 'JJ'
console.log '\n\ninserted person: ', personId
person = Person.documents.findOne(personId)
console.log person
postId = Post.documents.insert
title: 'My first post'
author: person
# subscribers: [person]
# reviewers: [person]
console.log '\n\ninserted post: ', postId
post = Post.documents.findOne(postId)
console.log post
console.log '\n\nupdated person displayname: '
Person.documents.update person._id,
$set:
displayName: 'Deanna Troi-Riker'
person = Person.documents.findOne(personId)
post = Post.documents.findOne(postId)
console.log person
console.log post
Results:
I20170727-21:53:37.152(1)? TESTINNG PEERDB
I20170727-21:53:37.157(1)?
I20170727-21:53:37.158(1)?
I20170727-21:53:37.158(1)? inserted person: YLLhtQ5kXCTN5BwdF
I20170727-21:53:37.162(1)? Person {
I20170727-21:53:37.163(1)? _id: 'YLLhtQ5kXCTN5BwdF',
I20170727-21:53:37.163(1)? name: 'Jane',
I20170727-21:53:37.163(1)? surname: 'Brown',
I20170727-21:53:37.163(1)? username: 'jane.brown',
I20170727-21:53:37.164(1)? displayName: 'JJ' }
I20170727-21:53:37.165(1)?
I20170727-21:53:37.165(1)?
I20170727-21:53:37.165(1)? inserted post: aLTtt9wdXtf6Xyf3X
I20170727-21:53:37.166(1)? Post {
I20170727-21:53:37.166(1)? _id: 'aLTtt9wdXtf6Xyf3X',
I20170727-21:53:37.166(1)? title: 'My first post',
I20170727-21:53:37.167(1)? author:
I20170727-21:53:37.167(1)? Person {
I20170727-21:53:37.167(1)? _id: 'YLLhtQ5kXCTN5BwdF',
I20170727-21:53:37.167(1)? name: 'Jane',
I20170727-21:53:37.168(1)? surname: 'Brown',
I20170727-21:53:37.168(1)? username: 'jane.brown',
I20170727-21:53:37.168(1)? displayName: 'JJ' } }
I20170727-21:53:37.169(1)?
I20170727-21:53:37.169(1)?
I20170727-21:53:37.169(1)? updated person displayname to Deanna Troi-Riker':
I20170727-21:53:37.170(1)? Person {
I20170727-21:53:37.170(1)? _id: 'YLLhtQ5kXCTN5BwdF',
I20170727-21:53:37.171(1)? name: 'Jane',
I20170727-21:53:37.171(1)? surname: 'Brown',
I20170727-21:53:37.171(1)? username: 'jane.brown',
I20170727-21:53:37.171(1)? displayName: 'Deanna Troi-Riker' }
I20170727-21:53:37.172(1)? Post {
I20170727-21:53:37.172(1)? _id: 'aLTtt9wdXtf6Xyf3X',
I20170727-21:53:37.172(1)? title: 'My first post',
I20170727-21:53:37.173(1)? author:
I20170727-21:53:37.173(1)? Person {
I20170727-21:53:37.173(1)? _id: 'YLLhtQ5kXCTN5BwdF',
I20170727-21:53:37.173(1)? name: 'Jane',
I20170727-21:53:37.174(1)? surname: 'Brown',
I20170727-21:53:37.174(1)? username: 'jane.brown',
I20170727-21:53:37.174(1)? displayName: 'JJ' } }
I20170727-21:53:37.197(1) (lib.coffee:1413) Enabling observers...
I20170727-21:53:37.237(1) (lib.coffee:1417) Done
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gsc-dev
commented on May 27, 2024
Hi @mitar I finally came up with a working example in ES6 with:
- extends
- class methods
- instance methods
- reference fields
- generators
- triggers
/* eslint new-cap: 0 */
const differ = require('deep-object-diff').diff;
export class Model extends Document { // eslint-disable-line
// Constructor
static initClass() {
this.Meta({
abstract: true,
});
}
// Class methods
static verboseName = () => this.Meta._name.toLowerCase();
}
Model.initClass();
export class Person extends Model {
static initClass() {
const triggers = () => ({
updateUpdatedAt: this.Trigger(['username', 'displayName'], (updated, current) => {
if (updated && updated._id) {
this.documents.update(updated._id, {
$set: {
diff: differ(current, updated),
updatedAt: new Date(),
},
});
}
}),
});
this.Meta({
name: 'Person',
triggers,
});
}
fullName = () => `${this.name} ${this.surname}`;
}
Person.initClass();
export class Post extends Model {
// Constructor
static initClass() {
const message = this.GeneratedField('self', ['title'], (document) => {
if (document.length <= 1) return [];
return [
document._id,
`new post: ${document.title}!`,
];
});
const fields = () => ({
author: this.ReferenceField(Person, ['username', 'displayName']),
subscribers: [this.ReferenceField(Person)],
reviewers: [this.ReferenceField(Person, ['username', 'displayName'])],
message,
});
this.Meta({
name: 'Post',
fields,
});
}
}
Post.initClass();
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Related Issues (20)
- Document.updateAll not updating references HOT 2
- bulkInsert removes undeclared subfields HOT 4
- Packaging domain HOT 4
- Dependency on Log HOT 1
- Synchronous XMLHttpRequest warning HOT 1
- Provide findAndModify
- Dedicated PeerDB Instance HOT 4
- Multi-server architecture HOT 1
- Collection created on server even when a document has remote connection. HOT 4
- Name must match the class name HOT 3
- CRUD many-to-many relatioships between 3 interconnected collections HOT 2
- Option to specify the mongo driver HOT 2
- Required field in arrays HOT 6
- Limit observes to only the latest schema versions of documents
- Reverse fields error: Field names cannot contain '.'
- What makes exists more efficient? HOT 4
- PeerDB query in publication rather than always? HOT 9
- _updateSourceField error HOT 3
- Background initialization of observers or other optimizations HOT 2
- When processing an update of same value for multiple fields in a document, update it in single operation
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