46 lines
1.4 KiB
C#
46 lines
1.4 KiB
C#
namespace MyOffice.DbContext;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Design;
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public class AppDbContextFactory : IDesignTimeDbContextFactory<AppDbContext>
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{
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public static AppDbContextFactory Instance = new();
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public AppDbContext CreateDbContext()
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{
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return CreateDbContext(null);
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}
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public AppDbContext CreateDbContext(string[]? args)
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{
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var connection = RepositoryInitializer.ConnectionString;
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var builder = new DbContextOptionsBuilder<AppDbContext>();
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var provider = connection?.Provider ?? args?[0] ?? "";
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var connectionString = connection?.ConnectionString ?? args?[1] ?? "";
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if (!Enum.TryParse<AppDbContextProvidersEnum>(provider, out var providerEnum))
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throw new InvalidOperationException($"No such provider: [{provider}]");
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switch (providerEnum)
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{
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case AppDbContextProvidersEnum.npgsql:
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builder.UseNpgsql(connectionString, x => x.MigrationsAssembly("MyOffice.Migrations.Postgres"));
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break;
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case AppDbContextProvidersEnum.sqlite:
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builder.UseSqlite(connectionString, x => x.MigrationsAssembly("MyOffice.Migrations.Sqlite"));
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break;
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default:
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throw new NotSupportedException($"No such provider: [{provider}]");
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}
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var db = new AppDbContext(providerEnum, builder.Options);
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db.ChangeTracker.AutoDetectChangesEnabled = false;
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db.ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
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return db;
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}
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} |