Bensassi learn-sequelize

learn-sequelize.js

@@ -1,71 +1,79 @@
 const { Genre, Movie, Actor } = require("./models");
 
-/*
-  Write a function that creates a new Genre in the database
-  - currently, the genre table has 3 entries: Action, Comedy, and Drama
-  - add one more Genre of your choice
-  - duplicate entries are not allowed (try it to learn about errors)
-*/
-function insertNewGenre() {
-  // Add code here
+async function insertNewGenre() {
+  try {
+    const newGenre = await Genre.create({ name: 'Horror' });
+    console.log('New genre added:', newGenre);
+  } catch (error) {
+    console.error("Error adding genre:", error);
+  }
 }
 
-/*
-  Write a function that creates a new Movie in the database
-  - currently, there are 5 movies
-  - add one more Movie of your choice.
-  - the movie CANNOT be from year 2008 (try it to learn about errors)
-*/
-function insertNewMovie() {
-  // Add code here
+async function insertNewMovie() {
+  try {
+    const newMovie = await Movie.create({ title: 'The Dark Knight', year: 2019 });
+    console.log('New movie added:', newMovie);
+  } catch (error) {
+    console.error("Error adding movie:", error);
+  }
 }
 
-/*
-  Write a function that returns the title of the movie with ID=2
-*/
-function getMovieWithId2() {
-  // Add code here
+async function getMovieWithId2() {
+  try {
+    const movie = await Movie.findByPk(2);
+    return movie ? movie.title : 'Movie not found';
+  } catch (error) {
+    console.error("Error fetching movie:", error);
+  }
 }
 
-/*
-  Write a function that returns an array of all the actor names
-*/
-function getAllActors() {
-  // Add code here
+async function getAllActors() {
+  try {
+    const actors = await Actor.findAll();
+    return actors.map(actor => actor.name);
+  } catch (error) {
+    console.error("Error fetching actors:", error);
+  }
 }
 
-/*
-  Write a function that returns an array of all the movie titles from 2008
-*/
-function getAllMoviesFrom2008() {
-  // Add code here
+async function getAllMoviesFrom2008() {
+  try {
+    const movies = await Movie.findAll({ where: { year: 2008 } });
+    return movies.map(movie => movie.title);
+  } catch (error) {
+    console.error("Error fetching movies from 2008:", error);
+  }
 }
 
-/*
-  Write a function that deletes the genre you added in the first function: insertNewGenre()
-*/
-function deleteGenreYouAdded() {
-  // Add code here
+async function deleteGenreYouAdded() {
+  try {
+    await Genre.destroy({ where: { name: 'Horror' } });
+    console.log("Genre 'Horror' deleted successfully.");
+  } catch (error) {
+    console.error("Error deleting genre:", error);
+  }
 }
 
-/*
-  Write a function that associates:
-  - the actor "Rosario Dawson" with the movie "Eagle Eye"
-  - the actor and movie record already exist in the database
-  - add the association record to the database
-*/
-function associateRosarioToEagleEye() {
-  // Add code here
+async function associateRosarioToEagleEye() {
+  try {
+    const actor = await Actor.findOne({ where: { name: 'Rosario Dawson' } });
+    const movie = await Movie.findOne({ where: { title: 'Eagle Eye' } });
+    await movie.addActor(actor);
+    console.log("Association added: Rosario Dawson -> Eagle Eye");
+  } catch (error) {
+    console.error("Error associating actor with movie:", error);
+  }
 }
 
-/*
-  Write a function that associates:
-  - the actor "Robert Downey Jr." with the movie "Tropic Thunder"
-  - the actor and movie record already exist in the database
-  - add the association record to the database
-*/
 async function associateRobertToTropicThunder() {
-  // Add code here
+  try {
+    const actor = await Actor.findOne({ where: { name: 'Robert Downey Jr.' } });
+    const movie = await Movie.findOne({ where: { title: 'Tropic Thunder' } });
+    await movie.addActor(actor);
+    console.log("Association added: Robert Downey Jr. -> Tropic Thunder");
+  } catch (error) {
+    console.error("Error associating actor with movie:", error);
+  }
 }
 
 module.exports = {