Merge remote-tracking branch 'origin/master' into Leo/InscriptionDesEtudiants

# Conflicts:
#	frontend/src/rest/apps.js

backend/src/main/java/ovh/herisson/Clyde/Services/Msg/DiscussionService.java

@@ -0,0 +1,57 @@
+package ovh.herisson.Clyde.Services.Msg;
+
+import java.util.List;
+
+/******************************************************
+ * @file DiscussionService.java
+ * @author Anthony Debucquoy
+ * @scope Extension messagerie
+ *
+ * Various function utilised by the messages application
+ ******************************************************/
+
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.fasterxml.jackson.databind.util.JSONPObject;
+
+import ovh.herisson.Clyde.Repositories.Msg.DiscussionRepository;
+import ovh.herisson.Clyde.Tables.User;
+import ovh.herisson.Clyde.Tables.Msg.Discussion;
+import ovh.herisson.Clyde.Tables.Msg.Message;
+
+@Service
+public class DiscussionService {
+
+	@Autowired
+	private DiscussionRepository discRepo;
+
+	public Discussion create(String name, User author){
+		return discRepo.save(new Discussion(name, author));
+	}
+
+	/**
+	 * list discussions owned by a certain user
+	 */
+	public Iterable<Discussion> getOwned(User author){
+		return discRepo.findByMembership(author.getRegNo());
+	}
+
+	/**
+	 * Create a message and link it to it's discussion
+	 */
+	public Discussion CreateMessage(Discussion disc, Message msg){
+		disc.addMessage(msg);
+		return discRepo.save(disc);
+	}
+
+	/**
+	 * Check if a user is in a discussion
+	 */
+    public boolean hasDiscussion(User user, long id) {
+		Discussion disc = discRepo.findById(id).orElse(null);
+		List<User> members = disc.getMembers();
+		return members.contains(user);
+    }
+}