public async Task <bool> Update(int id, League item)
        {
            if (item == null)
            {
                return(false);
            }

            item.Id = id;

            db.Entry(item).State = EntityState.Modified;
            await db.SaveChangesAsync();

            return(true);
        }
        // Update a User from the database (the financial adviser is retrieved automatically)
        public async Task <bool> Update(string id, UserModel item)
        {
            if (item == null)
            {
                return(false);
            }

            // we get the user in the database and change the name / password (if not null)
            IdentityUser editedUser = db.Users.Find(id);

            if (editedUser != null)
            {
                if (!String.IsNullOrEmpty(item.Name))
                {
                    editedUser.UserName = item.Name;
                }

                // if the password is blank, we reuse the previous one
                if (!String.IsNullOrEmpty(item.Password))
                {
                    editedUser.PasswordHash  = new PasswordHasher().HashPassword(item.Password);
                    editedUser.SecurityStamp = Guid.NewGuid().ToString();
                }

                // Managing the admin role of the user
                if (item.AdministratorRole)
                {
                    // if the item has the administrator role at true, we add the role to the user if he doesn't have it
                    if (!await this.userManager.IsInRoleAsync(id, AuthenticationRoles.AdministratorRole))
                    {
                        await this.userManager.AddToRoleAsync(id, AuthenticationRoles.AdministratorRole);
                    }
                }
                else
                {
                    // if the item has the administrator role at false, we remove the role to the user if he has it
                    if (await this.userManager.IsInRoleAsync(id, AuthenticationRoles.AdministratorRole))
                    {
                        userManager.RemoveFromRole(id, AuthenticationRoles.AdministratorRole);
                    }
                }

                db.Entry(editedUser).State = EntityState.Modified;
                await db.SaveChangesAsync();

                return(true);
            }
            else
            {
                return(false);
            }
        }