Remove unwanted unused methods

These methods are not only unused but also either allow or are undesired
behaviour (loading groups by owner is bad because additional managers
now exist; gameboard stats are bad because there are too many gameboards
to load at once; etc).

src/main/java/uk/ac/cam/cl/dtg/isaac/api/managers/AssignmentManager.java

@@ -164,20 +164,6 @@ public AssignmentDTO createAssignment(final AssignmentDTO newAssignment) throws
         return newAssignment;
     }
 
-    /**
-     * Assignments set by user.
-     *
-     * @param user
-     *            - who set the assignments
-     * @return the assignments.
-     * @throws SegueDatabaseException
-     *             - if we cannot complete a required database operation.
-     */
-    public List<AssignmentDTO> getAllAssignmentsSetByUser(final RegisteredUserDTO user) throws SegueDatabaseException {
-        Objects.requireNonNull(user);
-        return this.assignmentPersistenceManager.getAssignmentsByOwner(user.getId());
-    }
-
     /**
      * Get all assignments for a list of groups.
      *

src/main/java/uk/ac/cam/cl/dtg/isaac/api/managers/GameManager.java

@@ -610,24 +610,6 @@ public GameboardDTO saveNewGameboard(final GameboardDTO gameboardDTO, final Regi
         return gameboardDTO;
     }
 
-    /**
-     * @return useful for providing an indication of how many people are sharing boards.
-     * @throws SegueDatabaseException
-     *             - if there is a problem updating the gameboard.
-     */
-    public Map<String, Integer> getNumberOfConnectedUsersByGameboard() 
-            throws SegueDatabaseException {
-        Map<String, List<String>> boardToUserIdMapping = this.gameboardPersistenceManager.getBoardToUserIdMapping();
-
-        Map<String, Integer> result = Maps.newTreeMap();
-
-        for (java.util.Map.Entry<String, List<String>> e : boardToUserIdMapping.entrySet()) {
-            result.put(e.getKey(), e.getValue().size());
-        }
-
-        return result;
-    }
-
     /**
      * Update the gameboards title.
      * 

src/main/java/uk/ac/cam/cl/dtg/isaac/dao/GameboardPersistenceManager.java

@@ -503,41 +503,6 @@ public void augmentGameboardItems(final List<GameboardDTO> gameboards) {
         }
     }
 
-    /**
-     * Utility method to get a map of gameboard id to list of users who are connected to it.
-     * 
-     * @return map of gameboard id to list of users
-     * @throws SegueDatabaseException
-     *             - if there is a database error.
-     */
-    public Map<String, List<String>> getBoardToUserIdMapping() throws SegueDatabaseException {
-        Map<String, List<String>> results = Maps.newHashMap();
-
-        String query = "SELECT gameboard_id, user_id FROM user_gameboards;";
-        try (Connection conn = database.getDatabaseConnection();
-             PreparedStatement pst = conn.prepareStatement(query);
-             ResultSet sqlResults = pst.executeQuery();
-        ) {
-            while (sqlResults.next()) {
-                String gameboardId = sqlResults.getString("gameboard_id");
-                String userId = sqlResults.getString("user_id");
-
-                if (results.containsKey(gameboardId)) {
-                    results.get(gameboardId).add(userId);
-                } else {
-                    List<String> users = Lists.newArrayList();
-                    users.add(userId);
-                    results.put(gameboardId, users);
-                }
-            }
-
-        } catch (SQLException e) {
-            throw new SegueDatabaseException("Unable to find assignment by id", e);
-        }
-
-        return results;
-    }
-
     /**
      * Utility function to create a gameboard item from a content DTO (Should be a question page).
      * 

src/main/java/uk/ac/cam/cl/dtg/isaac/dao/IAssignmentPersistenceManager.java

@@ -42,20 +42,6 @@ public interface IAssignmentPersistenceManager {
      */
     List<AssignmentDTO> getAssignmentsByGroupId(Long groupId) throws SegueDatabaseException;
 
-    /**
-     * Retrieve all Assignments for a given group and set by a given user.
-     * 
-     * @param assignmentOwnerId
-     *            - to search for
-     * @param groupId
-     *            - to search for
-     * @return assignments as a list
-     * @throws SegueDatabaseException
-     *             - if there is an error when accessing the database.
-     */
-    List<AssignmentDTO> getAssignmentsByOwnerIdAndGroupId(Long assignmentOwnerId, Long groupId)
-            throws SegueDatabaseException;
-
     /**
      * getAssignmentsByGameboardAndGroup.
      * 
@@ -71,17 +57,6 @@ List<AssignmentDTO> getAssignmentsByOwnerIdAndGroupId(Long assignmentOwnerId, Lo
     List<AssignmentDTO> getAssignmentsByGameboardAndGroup(String gameboardId, Long groupId)
             throws SegueDatabaseException;
 
-    /**
-     * getAssignmentsByOwner.
-     * 
-     * @param ownerId
-     *            - the user id who might have assigned the gameboard.
-     * @return list of assignments
-     * @throws SegueDatabaseException
-     *             - if there is an error when accessing the database.
-     */
-    List<AssignmentDTO> getAssignmentsByOwner(Long ownerId) throws SegueDatabaseException;
-
     /**
      * getAssignmentsByGroupList.
      *

src/main/java/uk/ac/cam/cl/dtg/isaac/dao/PgAssignmentPersistenceManager.java

@@ -160,33 +160,6 @@ public List<AssignmentDTO> getAssignmentsByGroupId(final Long groupId) throws Se
         return this.getAssignmentsByGroupList(Collections.singletonList(groupId));
     }
 
-    @Override
-    public List<AssignmentDTO> getAssignmentsByOwnerIdAndGroupId(final Long assignmentOwnerId, final Long groupId)
-            throws SegueDatabaseException {
-
-        String query = "SELECT * FROM assignments WHERE owner_user_id = ? AND group_id = ? ORDER BY creation_date";
-        try (Connection conn = database.getDatabaseConnection();
-             PreparedStatement pst = conn.prepareStatement(query);
-        ) {
-            pst.setLong(1, assignmentOwnerId);
-            pst.setLong(2, groupId);
-
-            try (ResultSet results = pst.executeQuery()) {
-
-                List<AssignmentDTO> listOfResults = Lists.newArrayList();
-
-                while (results.next()) {
-                    listOfResults.add(this.convertToAssignmentDTO(this.convertFromSQLToAssignmentDO(results)));
-                }
-
-                return listOfResults;
-            }
-        } catch (SQLException e) {
-            throw new SegueDatabaseException("Unable to find assignment by group", e);
-        }
-    }
-
-
     @Override
     public List<AssignmentDTO> getAssignmentsByGameboardAndGroup(final String gameboardId, final Long groupId)
             throws SegueDatabaseException {
@@ -212,29 +185,6 @@ public List<AssignmentDTO> getAssignmentsByGameboardAndGroup(final String gamebo
         }
     }
 
-    @Override
-    public List<AssignmentDTO> getAssignmentsByOwner(final Long ownerId) throws SegueDatabaseException {
-        String query = "SELECT * FROM assignments WHERE owner_user_id = ? ORDER BY creation_date";
-        try (Connection conn = database.getDatabaseConnection();
-             PreparedStatement pst = conn.prepareStatement(query);
-        ) {
-            pst.setLong(1, ownerId);
-
-            try (ResultSet results = pst.executeQuery()) {
-
-                List<AssignmentDTO> listOfResults = Lists.newArrayList();
-
-                while (results.next()) {
-                    listOfResults.add(this.convertToAssignmentDTO(this.convertFromSQLToAssignmentDO(results)));
-                }
-
-                return listOfResults;
-            }
-        } catch (SQLException e) {
-            throw new SegueDatabaseException("Unable to find assignment by owner", e);
-        }
-    }
-
     @Override
     public List<AssignmentDTO> getAssignmentsByGroupList(Collection<Long> groupIds) throws SegueDatabaseException {
         String query = "SELECT * FROM assignments WHERE group_id = ANY (?) ORDER BY creation_date";

src/main/java/uk/ac/cam/cl/dtg/segue/api/managers/GroupManager.java

@@ -225,19 +225,6 @@ private List<RegisteredUserDTO> orderUsersByName(final List<RegisteredUserDTO> u
                 .collect(Collectors.toList());
     }
 
-    /**
-     * get all groups by owner.
-     *
-     * @param ownerUser
-     *            - the owner of the groups to search for.
-     * @return List of groups or empty list.
-     * @throws SegueDatabaseException if there is a db error
-     */
-    public List<UserGroupDTO> getGroupsByOwner(final RegisteredUserDTO ownerUser) throws SegueDatabaseException {
-        Objects.requireNonNull(ownerUser);
-        return convertGroupsToDTOs(groupDatabase.getGroupsByOwner(ownerUser.getId()));
-    }
-
     /**
      * getAllGroupsOwnedAndManagedByUser.
      *

src/main/java/uk/ac/cam/cl/dtg/segue/dao/users/IUserGroupPersistenceManager.java

@@ -33,17 +33,6 @@
  */
 public interface IUserGroupPersistenceManager {
 
-    /**
-     * Get all groups by owner.
-     *
-     * @param ownerUserId
-     *            the owner Id to find all groups for.
-     * @return List of groups belonging to owner user.
-     * @throws SegueDatabaseException
-     *             - if we cannot contact the database.
-     */
-    List<UserGroup> getGroupsByOwner(Long ownerUserId) throws SegueDatabaseException;
-
     /**
      * Get groups by owner.
      * 
@@ -236,16 +225,6 @@ public interface IUserGroupPersistenceManager {
      */
     Map<Long, Set<Long>> getAdditionalManagerSetsByGroupIds(final Collection<Long> groupIds) throws SegueDatabaseException;
 
-    /**
-     * Get groups by additional manager id.
-     *
-     * @param additionalManagerId
-     *            the additional Manager Id to find all groups for.
-     * @throws SegueDatabaseException
-     *             - if we cannot contact the database.
-     */
-    List<UserGroup> getGroupsByAdditionalManager(final Long additionalManagerId) throws SegueDatabaseException;
-
     /**
      * Get groups by additional manager id
      *

src/main/java/uk/ac/cam/cl/dtg/segue/dao/users/PgUserGroupPersistenceManager.java

@@ -192,12 +192,6 @@ public void removeUserFromGroup(final Long userId, final Long groupId) throws Se
         this.setUsersGroupMembershipStatus(userId, groupId, GroupMembershipStatus.DELETED);
     }
 
-
-    @Override
-    public List<UserGroup> getGroupsByOwner(final Long ownerUserId) throws SegueDatabaseException {
-        return this.getGroupsByOwner(ownerUserId, null);
-    }
-
     @Override
     public List<UserGroup> getGroupsByOwner(final Long ownerUserId, @Nullable final Boolean archivedGroupsOnly) throws SegueDatabaseException {
         String pstString = "SELECT * FROM groups WHERE owner_id = ?";
@@ -211,11 +205,6 @@ public List<UserGroup> getGroupsByOwner(final Long ownerUserId, @Nullable final
 
     }
 
-    @Override
-    public List<UserGroup> getGroupsByAdditionalManager(final Long additionalManagerId) throws SegueDatabaseException {
-        return this.getGroupsByAdditionalManager(additionalManagerId, null);
-    }
-
     @Override
     public List<UserGroup> getGroupsByAdditionalManager(final Long additionalManagerId, @Nullable final Boolean archivedGroupsOnly) throws SegueDatabaseException {
         String pstString = "SELECT * FROM groups WHERE id IN (SELECT group_id FROM group_additional_managers WHERE user_id = ?)";