Added ChangeUserRole and corresponding test, also GetProjectId should be fixed.

backend/internal/database/db.go

@@ -1,7 +1,9 @@
 package database
 
 import (
+	"database/sql"
 	"embed"
+	"fmt"
 	"os"
 	"path/filepath"
 	"time"
@@ -25,7 +27,8 @@ type Database interface {
 	// ChangeUserRole(username string, projectname string, role string) error
 	// AddTimeReport(projectname string, start time.Time, end time.Time) error
 	// AddUserToProject(username string, projectname string) error
-	// ChangeUserRole(username string, projectname string, role string) error
+	ChangeUserRole(username string, projectname string, role string) error
+	GetProjectId(projectname string) (int, error)
 }
 
 // This struct is a wrapper type that holds the database connection
@@ -42,7 +45,6 @@ const projectInsert = "INSERT INTO projects (name, description, owner_user_id) S
 const promoteToAdmin = "INSERT INTO site_admin (admin_id) SELECT id FROM users WHERE username = ?"
 const addTimeReport = "INSERT INTO activity (report_id, activity_nbr, start_time, end_time, break, comment) VALUES (?, ?, ?, ?, ?, ?)" // WIP
 const addUserToProject = "INSERT INTO project_member (project_id, user_id, role) VALUES (?, ?, ?)"                                     // WIP
-// const changeUserRole = ""
 
 // DbConnect connects to the database
 func DbConnect(dbpath string) Database {
@@ -61,6 +63,22 @@ func DbConnect(dbpath string) Database {
 	return &Db{db}
 }
 
+func (d *Db) ChangeUserRole(username string, projectname string, role string) error {
+	userID, err := d.GetUserId(username)
+	if err != nil {
+		return err
+	}
+
+	projectID, err := d.GetProjectId(projectname)
+	if err != nil {
+		return err
+	}
+
+	// Update user role in the project using the correct table name
+	_, err = d.Exec("INSERT OR REPLACE INTO user_roles (user_id, project_id, p_role) VALUES (?, ?, ?)", userID, projectID, role)
+	return err
+}
+
 func (d *Db) AddTimeReport(projectname string, start time.Time, end time.Time, breakTime uint32) error { // WIP
 	_, err := d.Exec(addTimeReport, projectname, 0, start, end, breakTime, false)
 	return err
@@ -110,10 +128,16 @@ func (d *Db) GetUserId(username string) (int, error) {
 	return id, err
 }
 
-func (d *Db) GetProjectId(projectname string) (int, error) { // WIP, denna kan vara goof
+func (d *Db) GetProjectId(projectname string) (int, error) {
 	var id int
-	err := d.Get(&id, "SELECT id FROM project WHERE project_name = ?", projectname)
+	err := d.Get(&id, "SELECT id FROM projects WHERE name = ?", projectname)
-	return id, err
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return 0, fmt.Errorf("project '%s' not found", projectname)
+		}
+		return 0, err
+	}
+	return id, nil
 }
 
 // Creates a new project in the database, associated with a user

backend/internal/database/db_test.go

@@ -92,6 +92,32 @@ func TestPromoteToAdmin(t *testing.T) {
 	}
 }
 
+func TestDbChangeUserRole(t *testing.T) {
+	// Set up the initial state
+	db, err := setupState()
+	if err != nil {
+		t.Error("setupState failed:", err)
+	}
+
+	// Add a user
+	err = db.AddUser("test", "password")
+	if err != nil {
+		t.Error("AddUser failed:", err)
+	}
+
+	// Add a project
+	err = db.AddProject("test_project", "project description", "test")
+	if err != nil {
+		t.Error("AddProject failed:", err)
+	}
+
+	// Change user role
+	err = db.ChangeUserRole("test", "test_project", "project_manager")
+	if err != nil {
+		t.Error("ChangeUserRole failed:", err)
+	}
+}
+
 // func TestAddTimeReport(t *testing.T) {
 
 // }

backend/internal/database/migrations/0049_project_role.sql

@@ -5,5 +5,5 @@ CREATE TABLE IF NOT EXISTS project_role (
 );
 
 -- Insert the possible roles a user can have in a project.
-INSERT OR IGNORE INTO project_role (p_role) VALUES ('admin');
+INSERT OR IGNORE INTO project_role (p_role) VALUES ('project_manager');
 INSERT OR IGNORE INTO project_role (p_role) VALUES ('member');

backend/internal/database/migrations/0050_user_roles.sql

@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS user_roles (
   user_id INTEGER NOT NULL,
   project_id INTEGER NOT NULL,
-  p_role TEXT NOT NULL, -- 'admin' or 'member'
+  p_role TEXT NOT NULL, -- 'project_manager' or 'member'
   FOREIGN KEY (user_id) REFERENCES users (id)
   FOREIGN KEY (project_id) REFERENCES projects (id)
   FOREIGN KEY (p_role) REFERENCES project_role (p_role)