[PR] Merge master branch into start branch

README.md

@@ -17,16 +17,9 @@
 * [mLab](https://mlab.com/)
 
 ## Course
-Thanks for taking the Intro to MongoDB course, created by Scott Moss & Frontend Masters. This course aims to cover a wide intro into using MongoDb with Nodejs. Topics refrain from going deep, but instead, focus on a wide view.
-## Excercises
-Note: To handle the error "MongoError: E11000 duplicate key error collection" by dropping the database
-```bash
-mongo
-use dbName;
-db.dropDatabase();
-exit
-```
-(dbName is the name of the database)
+Thanks for taking the [Introduction to MongoDB course](https://frontendmasters.com/courses/mongodb/), created by Scott Moss & Frontend Masters. This course aims to cover a wide intro into using MongoDb with Nodejs. Topics refrain from going deep, but instead, focus on a wide view.
+
+## Exercises
 
 ### Installing MongoDB
 There are many ways to install MongoDB. [The offical website](https://www.mongodb.com/download-center#community) has you covered either way. After installation, you might have to add a `dbPath`, a location where mongodb saves your data. You can do so like this.
@@ -35,9 +28,10 @@ mkdir -p /data/db
 ```
 Note: If you have an error like "data directory not found" or "permission denied" while installing MongoDB:
 ```bash
-sudo mkdir /data/db
+sudo mkdir -p /data/db
 sudo chown -R $USER /data/db
 ```
+
 ### Models
 * location - `exercises/models`
 * commands
@@ -51,6 +45,7 @@ This exercise will have you create connection logic and mongoose schemas. Using
 - [ ] create connection logic on `connect.js`
 - [ ] finish the user schema so that the the user model tests pass
 - [ ] complete the crud functions with the user model and get all the crud test to pass 
+
 ### Queries
 * location - `exercises/queries`
 * commands
@@ -64,6 +59,7 @@ This exercise will have you add relationships between models. You'll then use th
 - [ ] the post model should have a one-to-many similarPost field that points to posts
 - [ ] get all the post model tests to pass
 - [ ] get all the query tests to pass
+
 ### Hooks
 * location - `exercises/hooks`
 * commands
@@ -79,6 +75,7 @@ In this exercise, you'll learn how to use schema middleware and virtuals. Also,
 - [ ] add a virtual getter to the org schema called `avatar` that creates the fill url to the org avatar by concatinating the cdnUrl with the org id
 - [ ] get all org tests to pass
 - [ ] get all project tests to pass
+
 ### App
 * location - `exercises/app`
 * commands
@@ -93,4 +90,14 @@ In this exercise, you'll have to create queries in Expressjs controllers to sati
 - [ ] create db mutation for `POST /todo/`
 - [ ] **optional** create a mLab sandbox and use your hosted DB
 
+## Debugging
+Note: To handle the error `MongoError: E11000 duplicate key error collection` drop the database.
+
+```bash
+mongo
+use dbName;
+db.dropDatabase();
+exit
+```
 
+(dbName is the name of the database)

exercises/queries/__test__/queries.spec.js

@@ -9,7 +9,7 @@ const {
 const Post = require('../post')
 const Author = require('../author')
 const mongoose = require('mongoose')
-const createConent = (length, fill = 'b') => new Array(length).fill(fill).join('')
+const createContent = (length, fill = 'b') => new Array(length).fill(fill).join('')
 
 describe('queries', () => {
   describe('postByTitle', () => {
@@ -18,7 +18,7 @@ describe('queries', () => {
       const post = await Post.create({
         title,
         author: mongoose.Types.ObjectId(),
-        content: createConent(50),
+        content: createContent(50),
         contentLength: 50
       })
 
@@ -33,7 +33,7 @@ describe('queries', () => {
       const post = await Post.create({
         author,
         title: 'Carter v',
-        content: createConent(50),
+        content: createContent(50),
         contentLength: 50
       })
       const [match] = await postsForAuthor(author)
@@ -46,9 +46,9 @@ describe('queries', () => {
       const author = mongoose.Types.ObjectId()
 
       const posts = await Post.create([
-        {title: 'Super Duper', author, content: createConent(1000), contentLength: 1000},
-        {title: 'Amazing', author, content: createConent(100), contentLength: 100},
-        {title: 'Other', author, content: createConent(800), contentLength: 800}
+        {title: 'Super Duper', author, content: createContent(1000), contentLength: 1000},
+        {title: 'Amazing', author, content: createContent(100), contentLength: 100},
+        {title: 'Other', author, content: createContent(800), contentLength: 800}
       ])
 
       const matches = await postByContentLength(1000, 100)
@@ -64,15 +64,15 @@ describe('queries', () => {
       const post = await Post.create({
         title: 'Super Duper',
         author: author.id,
-        content: createConent(1000),
+        content: createContent(1000),
         contentLength: 1000
       })
       const post2 = await Post.create({
         author: author.id,
         title: 'Post 2',
-        content: createConent(100),
+        content: createContent(100),
         contentLength: 100,
-        simularPosts: [post.id]
+        similarPosts: [post.id]
       })
 
       const match = await fullPostById(post2.id)
@@ -83,9 +83,9 @@ describe('queries', () => {
     test('only selects fields given', async () => {
       const author = mongoose.Types.ObjectId()
       await Post.create([
-        {title: 'learn things', content: createConent(100), contentLength: 100, author},
-        {title: 'lean more things', content: createConent(100), contentLength: 100, author},
-        {title: 'lean more things++', content: createConent(100), contentLength: 100, author}
+        {title: 'learn things', content: createContent(100), contentLength: 100, author},
+        {title: 'lean more things', content: createContent(100), contentLength: 100, author},
+        {title: 'lean more things++', content: createContent(100), contentLength: 100, author}
       ])
 
       const matches = await allPostsSlim({title: 1, content: 1})
@@ -98,12 +98,12 @@ describe('queries', () => {
     })
   })
   describe('addRelatedPosts', () => {
-    test('should not overrided related posts that are there', async () => {
+    test('should not override related posts that are there', async () => {
       const author = mongoose.Types.ObjectId()
       const post = await Post.create({
         author,
         title: 'Post',
-        content: createConent(100),
+        content: createContent(100),
         contentLength: 100,
         similarPosts: [mongoose.Types.ObjectId()]
       }) 

exercises/queries/post.js

@@ -18,7 +18,7 @@ const postSchema = new mongoose.Schema({
   },
   isFeatured: {
     type: Boolean,
-    deafult: false
+    default: false
   }
 }, {timestamps: true})