implemented removal of project members

project/src/main/java/de/srsoftware/umbrella/project/ProjectDb.java

@@ -7,9 +7,11 @@ import de.srsoftware.umbrella.core.model.Project;
 import java.util.Map;
 
 public interface ProjectDb {
+	void dropMember(long projectId, long userId);
 	Map<Long, Permission> getMembers(Project project);
 	Project load(long projectId) throws UmbrellaException;
 	Map<Long, Project> ofCompany(long companyId, boolean includeClosed) throws UmbrellaException;
 	Map<Long, Project> ofUser(long userId, boolean includeClosed) throws UmbrellaException;
+
 	Project save(Project prj) throws UmbrellaException;
 }

project/src/main/java/de/srsoftware/umbrella/project/ProjectModule.java

@@ -194,6 +194,7 @@ public class ProjectModule extends BaseHandler implements ProjectService {
 		var project = loadMembers(projects.load(projectId));
 		if (!project.hasMember(user)) throw forbidden("You are not a member of {0}",project.name());
 		var json = json(ex);
+		if (json.has(DROP_MEMBER) && json.get(DROP_MEMBER) instanceof Number id) dropMember(project,id.longValue());
 		if (json.has(MEMBERS) && json.get(MEMBERS) instanceof JSONObject memberJson) patchMembers(project,memberJson);
 		if (json.has(NEW_MEMBER) && json.get(NEW_MEMBER) instanceof Number num) addMember(project,num.longValue());
 
@@ -201,6 +202,11 @@ public class ProjectModule extends BaseHandler implements ProjectService {
 		return sendContent(ex,project.toMap());
 	}
 
+	private void dropMember(Project project, long userId) {
+		if (project.members().get(userId).permission() == OWNER) throw forbidden("You may not remove the owner of the project");
+		projects.dropMember(project.id(),userId);
+		project.members().remove(userId);
+	}
 
 
 	private boolean postProject(HttpExchange ex, UmbrellaUser user) throws IOException, UmbrellaException {

project/src/main/java/de/srsoftware/umbrella/project/SqliteDb.java

@@ -115,6 +115,18 @@ CREATE TABLE IF NOT EXISTS {0} ( {1} VARCHAR(255) PRIMARY KEY, {2} VARCHAR(255)
 		}
 	}
 
+	@Override
+	public void dropMember(long projectId, long userId) {
+		try {
+			delete().from(TABLE_PROJECT_USERS)
+					.where(PROJECT_ID,equal(projectId))
+					.where(USER_ID,equal(userId))
+					.execute(db);
+		} catch (SQLException e) {
+			throw new UmbrellaException("Failed to delete member (userId = {0} from project {1}",userId,projectId);
+		}
+	}
+
 	@Override
 	public Map<Long, Permission> getMembers(Project project) {
 		try {