/// <summary>
/// The lawyer has chosen to save their changes made on the form presented on GET. Add relationships between
/// the lawyer to the chosen libraries via the LawyerLibraryJunction table.
/// </summary>
/// <returns>RedirectToPageResult for Index on successful creation of relationships between the lawyer and
/// all selected libraries. PageResult if ModelState was invalid or if some error occurred with creating / removing
/// rows on the LawyerLibraryJunction table to allow the user an opportunity to try again.</returns>
public async Task <IActionResult> OnPostAsync()
{
Lawyer lawyer = await _lawyerService.GetLawyerByPrincipalAsync(User);
// Try to merge the state of Lawyer <-> Library relationships
if (!ModelState.IsValid || !(await _lawyerService.MergeLibraryListWithLawyerAsync(
lawyer.ApplicationUserId, SelectedLibraryIds)))
{
// Something went wrong; give the user another opportunity to modify their libraries
return(Page());
}
// Success! Redirect to index
return(RedirectToPage("Index"));
}
