public async Task <IActionResult> RemoveFromRole(UserWithRoleFormViewModel model)
{
bool isRoleExisting = await this.roleManager.RoleExistsAsync(model.Role);
User user = await this.userManager.FindByNameAsync(model.Username);
if (!ModelState.IsValid || !isRoleExisting || user == null)
{
TempData.AddErrorMessage(InvalidIdentityDetailsErroMessage);
return(RedirectToAction(nameof(Details), new { model.Username }));
}
IdentityResult removeFromRoleResult = await this.userManager.RemoveFromRoleAsync(user, model.Role);
if (!removeFromRoleResult.Succeeded)
{
string errors = string.Join(Environment.NewLine, removeFromRoleResult.Errors.Select(e => e.Description));
TempData.AddErrorMessage(string.Format(ChangeRoleErrorMessage, errors));
return(RedirectToAction(nameof(Details), new { model.Username }));
}
await this.userManager.UpdateAsync(user);
TempData.AddSuccessMessage(string.Format(RemoveFromRoleSuccessMessage, model.Username, model.Role));
return(RedirectToAction(nameof(Details), new { model.Username }));
}
public async Task <IActionResult> AddToRole(UserWithRoleFormViewModel model)
{
bool isRoleExisting = await this.roleManager.RoleExistsAsync(model.Role);
bool isUserExisting = await this.userManager.FindByIdAsync(model.UserId) != null;
if (!isRoleExisting || !isUserExisting)
{
ModelState.AddModelError(string.Empty, "Invalid identity details.");
}
if (!ModelState.IsValid)
{
return(RedirectToAction(nameof(Index)));
}
User user = await this.userManager.FindByIdAsync(model.UserId);
IdentityResult addToRoleResult = await this.userManager.AddToRoleAsync(user, model.Role);
if (!addToRoleResult.Succeeded)
{
string errors = string.Join(Environment.NewLine, addToRoleResult.Errors.Select(e => e.Description));
TempData.AddErrorMessage($"Error. {errors}");
return(RedirectToAction(nameof(Index)));
}
await this.userManager.UpdateAsync(user);
TempData.AddSuccessMessage($"User '{user.UserName}' has been added to role '{model.Role}'.");
return(RedirectToAction(nameof(Index)));
}