MongoDB Slack : POST vs AUTHORS one-to-many

many-to-many.js

// A post can have multiple authors
// An author can have many posts
// many-to-many relationship
{
 Post: [
   postID: 'postID',
   postTitle: 'How to build a website'
   postContent: '<div><p>HTML or markdown content here<p></div>'
   authorID: ['AuthorID1','AuthorID2'] // We define many-to-many relationship here
 ],
 Author: [
   authorID: 'authorID', 
   authorName: 'John Doe'
   authorTitle: 'Web Developer'
   // postID: [PostID1, PostID2] // this is not necessary because we define it in `Post`
 ]
}

one-to-many.js

// A post has one author
// an author can have many posts
// one-to-many relationship (author : post)
{
 Post: [
   postID: 'postID',
   postTitle: 'How to build a website'
   postContent: '<div><p>HTML or markdown content here<p></div>'
   authorID: 'authorID' // this defines foreign key for one-to-many or even one-to-one relationship
 ],
 Author: [
   authorID: 'authorID', 
   authorName: 'John Doe'
   authorTitle: 'Web Developer'
   // postID: [PostID1, PostID2] // this is not necessary because we define it in `Post`
 ]
}