68 lines
1.8 KiB
C#
68 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using Microsoft.EntityFrameworkCore;
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using _2021_backend.Data;
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using _2021_backend.Models;
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namespace _2021_backend.Pages.Students
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{
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public class DeleteModel : PageModel
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{
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private readonly _2021_backend.Data.BackendContext Context;
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public DeleteModel(_2021_backend.Data.BackendContext context)
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{
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Context = context;
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}
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[BindProperty]
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public Student Student { get; set; }
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public async Task<IActionResult> OnGetAsync(string? idstr)
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{
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if (idstr == null)
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{
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return NotFound();
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}
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Guid id = Guid.Parse(idstr);
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Student = await Context.Students.FirstOrDefaultAsync(m => m.Guid == id);
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if (Student == null)
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{
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return NotFound();
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}
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return Page();
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}
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public async Task<IActionResult> OnPostAsync(string? idstr)
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{
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if (idstr == null)
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{
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return NotFound();
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}
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Guid id = Guid.Parse(idstr);
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Student = await Context.Students.FindAsync(id);
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if (Student != null)
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{
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var q = from e in Context.Sessions where e.Students.Contains(id) select e;
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var lst = q.ToList();
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foreach(var it in lst)
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{
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it.Students.RemoveAll(k => k == id);
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}
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Context.Students.Remove(Student);
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Context.SaveChanges();
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}
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return RedirectToPage("./Index");
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}
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}
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}
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