69 lines
2.8 KiB
C#
69 lines
2.8 KiB
C#
using Microsoft.EntityFrameworkCore;
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using UniversityDataBaseImplemet.Models;
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using Stream = UniversityDataBaseImplemet.Models.Stream;
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namespace UniversityDataBaseImplemet
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{
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public class Database : DbContext
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{
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protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
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{
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if (optionsBuilder.IsConfigured == false)
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{
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optionsBuilder.UseNpgsql("Host=localhost;Port=5432;Database=UniversityCourseWork;Username=postgres;Password=0000");
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}
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base.OnConfiguring(optionsBuilder);
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}
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protected override void OnModelCreating(ModelBuilder modelBuilder)
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{
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modelBuilder.Entity<StudentDocument>()
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.HasKey(x => new { x.StudentId, x.DocumentId });
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modelBuilder.Entity<EducationGroupDocument>()
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.HasKey(x => new { x.EducationGroupId, x.DocumentId });
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modelBuilder.Entity<EducationGroupStream>()
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.HasKey(x => new { x.EducationGroupId, x.StreamId });
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modelBuilder.Entity<StudentStream>()
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.HasKey(x => new { x.StudentId, x.StreamId });
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modelBuilder.Entity<Document>()
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.HasOne(b => b.User)
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.WithMany(a => a.Documents)
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.OnDelete(DeleteBehavior.NoAction);
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modelBuilder.Entity<EducationStatus>()
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.HasOne(b => b.User)
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.WithMany(a => a.EducationStatuses)
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.OnDelete(DeleteBehavior.NoAction);
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modelBuilder.Entity<Student>()
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.HasOne(b => b.User)
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.WithMany(a => a.Students)
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.OnDelete(DeleteBehavior.NoAction);
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modelBuilder.Entity<Discipline>()
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.HasOne(b => b.User)
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.WithMany(a => a.Disciplines)
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.OnDelete(DeleteBehavior.NoAction);
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modelBuilder.Entity<EducationGroup>()
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.HasOne(b => b.User)
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.WithMany(a => a.EducationGroups)
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.OnDelete(DeleteBehavior.NoAction);
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modelBuilder.Entity<Stream>()
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.HasOne(b => b.User)
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.WithMany(a => a.Streams)
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.OnDelete(DeleteBehavior.NoAction);
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}
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public virtual DbSet<User> User { get; set; }
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public virtual DbSet<Document> Documents { get; set; }
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public virtual DbSet<Discipline> Discipline { get; set; }
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public virtual DbSet<EducationStatus> EducationStatuses { get; set; }
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public virtual DbSet<EducationGroup> EducationGroups { get; set; }
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public virtual DbSet<EducationGroupDocument> EducationGroupsDocuments { get; set; }
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public virtual DbSet<EducationGroupStream> EducationGroupsStreams { get; set; }
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public virtual DbSet<Stream> Streams { get; set; }
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public virtual DbSet<Student> Students { get; set; }
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public virtual DbSet<StudentDocument> StudentDocuments { get; set; }
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public virtual DbSet<StudentStream> StudentStreams { get; set; }
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}
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}
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