QRouland/M2MovieRecommander
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Get rating mongodb

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This commit is contained in:
Quentin Rouland 2016-12-01 09:43:18 +01:00
parent fc31eb97d4
commit fd1b24d35e
2 changed files with 49 additions and 4 deletions
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51
src/main/java/com/camillepradel/movierecommender/controller/MainController.java
View File

@ -31,6 +31,8 @@ import org.neo4j.driver.v1.Record;
import org.neo4j.driver.v1.Session;
import org.neo4j.driver.v1.StatementResult;
import com.camillepradel.movierecommender.model.Rating;
import java.util.HashMap;
import java.util.Iterator;
@Controller
public class MainController {
@ -144,6 +146,51 @@ public class MainController {
}
return listMovies;
}
public List<Rating>getRatingMongoDBByUser(Integer user_id){
ArrayList<Rating> listRating= new ArrayList<Rating>();
MongoCursor<Document> cursor;
MongoDatabase db = MongoDBConnector.getInstance().getConnexion();
MongoCollection<Document> users = db.getCollection("users");
MongoCollection<Document> movies = db.getCollection("movies");
BasicDBObject whereQuery = new BasicDBObject();
whereQuery.put("_id", user_id);
cursor = users.find(whereQuery).iterator();
Document user;
try {
user = cursor.next();
} catch(Exception e)
{
return new ArrayList<Rating>();
}
ArrayList<Document> user_movies = (ArrayList) user.get("movies");
BasicDBObject inQuery = new BasicDBObject();
HashMap<Integer,Integer> list = new HashMap<Integer,Integer>();
for(Document movie : user_movies)
list.put(movie.getInteger("movieid"),movie.getInteger("rating"));
inQuery.put("_id", new BasicDBObject("$in", list.keySet()));
cursor = movies.find(inQuery).iterator();
while (cursor.hasNext()) {
Document movie = cursor.next();
String[] genres;
genres = movie.getString("genres").split("\\|");
ArrayList<Genre> listGenres = new ArrayList<Genre>();
for(String genre : genres){
listGenres.add(new Genre(1,genre));
}
listRating.add(new Rating(new Movie(movie.getInteger("_id"), movie.getString("title"),
listGenres),user_id, list.get(movie.getInteger("_id"))));
}
return listRating;
}
@RequestMapping(value = "/movieratings", method = RequestMethod.GET)
public ModelAndView showMoviesRattings(
@ -161,9 +208,7 @@ public class MainController {
allMovies.add(new Movie(3, "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})));
// TODO: write query to retrieve all ratings from the specified user
List<Rating> ratings = new LinkedList<Rating>();
ratings.add(new Rating(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})), userId, 3));
ratings.add(new Rating(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})), userId, 4));
List<Rating> ratings = getRatingMongoDBByUser(userId);
ModelAndView mv = new ModelAndView("movieratings");
mv.addObject("userId", userId);

2
src/main/webapp/WEB-INF/views/movieratings.jsp
View File

@ -14,7 +14,7 @@
<ul>
<c:forEach items="${ratings}" var="rating">
<li>
${rating.getMovie().id} - ${rating.score}
${rating.getMovie().id} - ${rating.getMovie().title} - ${rating.score}
</li>
</c:forEach>
</ul>