Thiết kế website giá rẻ

Question

I am using EF Core v7.0.18.

I have a .csproj with 2 dBContext, GlobalDbContext and ConfiguratinDbContext.

GlobalDbContext works when I add a and EF migration – cmd lines below ConfigurationDbContext does not.

The error I get is:

Unable to create an object of type ‘ConfigurationDbContext’. For the different patterns supported at design time, see https://go.microsoft.com/fwlink/?linkid=851728

How to fix this?

For GlobalDbContext, this works and migration is created:

dotnet ef migrations add 
--project Doma.DataLayer/Doma.DataLayer.csproj 
--startup-project Doma.DataLayer.Tests/Doma.DataLayer.Tests.csproj 
--context Doma.DataLayer.Global.Models.GlobalDbContext 
--configuration Debug 
--framework net7.0 Initial 
--output-dir Global/Migrations

For ConfigurationDbContext – this is failing:

dotnet ef migrations add --project Doma.DataLayer/Doma.DataLayer.csproj 
--startup-project Doma.DataLayer.Tests/Doma.DataLayer.Tests.csproj 
--context Doma.DataLayer.Configuration.Models.ConfigurationDbContext 
--configuration Debug --framework net7.0 Initial 
--output-dir Configuration/Migrations
    Build started...
    Build succeeded.

Unable to create an object of type ‘ConfigurationDbContext’. For the different patterns supported at design time, see https://go.microsoft.com/fwlink/?linkid=851728

Process terminated with exit code 1

Succeeding DbContext [GlobalDbContext]:

// <auto-generated> This file has been auto generated by EF Core Power Tools. </auto-generated>
#nullable disable
using System;
using System.Collections.Generic;
using Doma.DataLayer.Global.Models;
using Microsoft.EntityFrameworkCore;

namespace Doma.DataLayer.Global.Models;

public partial class GlobalDbContext : DbContext
{
    public GlobalDbContext()
    {
    }

    public GlobalDbContext(DbContextOptions<GlobalDbContext> options)
        : base(options)
    {
    }

    public virtual DbSet<AppConfiguration> AppConfigurations { get; set; }
    public virtual DbSet<FormInstance> FormInstances { get; set; }
    public virtual DbSet<FormValue> FormValues { get; set; }
   
    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        if (!optionsBuilder.IsConfigured)
        {
            optionsBuilder.UseSqlite(
                "Data Source=TempGlobalDatabas.db");
        }
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<AppConfiguration>(entity =>
        {
            entity.ToTable("AppConfiguration");

            entity.Property(e => e.AppConfigurationId).HasColumnType("varchar(36)");
            entity.Property(e => e.AppName).HasColumnType("varchar");
            entity.Property(e => e.BucketName).HasColumnType("varchar");
            entity.Property(e => e.Comments).HasColumnType("varchar");
            entity.Property(e => e.ConfigurationIconPath).HasColumnType("varchar");
            entity.Property(e => e.CurrentlyInstalledVersion).HasColumnType("varchar");
            entity.Property(e => e.CurrentlyInstalledVersionLabel).HasColumnType("varchar");
            entity.Property(e => e.ETag).HasColumnType("varchar");
            entity.Property(e => e.FileKey).HasColumnType("varchar");
            entity.Property(e => e.FileName).HasColumnType("varchar");
            entity.Property(e => e.LastModified).HasColumnType("bigint");
            entity.Property(e => e.Title).HasColumnType("varchar");
            entity.Property(e => e.Url).HasColumnType("varchar");
            entity.Property(e => e.Version).HasColumnType("varchar");
        });

        modelBuilder.Entity<FormInstance>(entity =>
        {
            entity.ToTable("FormInstance");

            entity.Property(e => e.FormInstanceId).HasColumnType("varchar(36)");
            entity.Property(e => e.DateCreated).HasColumnType("bigint");
            entity.Property(e => e.FormId).HasColumnType("varchar(36)");
            entity.Property(e => e.FormInstanceName).HasColumnType("varchar");
        });

        modelBuilder.Entity<FormValue>(entity =>
        {
            entity.ToTable("FormValue");

            entity.Property(e => e.FormValueId).HasColumnType("varchar(36)");
            entity.Property(e => e.FormInstanceId).HasColumnType("varchar(36)");
            entity.Property(e => e.QuestionId).HasColumnType("varchar");
            entity.Property(e => e.Type).HasColumnType("varchar");
            entity.Property(e => e.Value).HasColumnType("varchar");
        });

        OnModelCreatingPartial(modelBuilder);
    }

    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
}// <auto-generated> This file has been auto generated by EF Core Power Tools. </auto-generated>
#nullable disable

Failing DbContext (ConfigurationDbContext):

// <auto-generated> This file has been auto generated by EF Core Power Tools. </auto-generated>
#nullable disable
using System;
using System.Collections.Generic;
using Doma.DataLayer.Global.Models;
using Microsoft.EntityFrameworkCore;

namespace Doma.DataLayer.Global.Models;

public partial class GlobalDbContext : DbContext
{
    public GlobalDbContext()
    {
    }

    public GlobalDbContext(DbContextOptions<GlobalDbContext> options)
        : base(options)
    {
    }

    public virtual DbSet<AppConfiguration> AppConfigurations { get; set; }

    public virtual DbSet<FormInstance> FormInstances { get; set; }
    public virtual DbSet<FormValue> FormValues { get; set; }
   
    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        if (!optionsBuilder.IsConfigured)
        {
            optionsBuilder.UseSqlite(
                "Data Source=TempGlobalDatabas.db");
        }
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<AppConfiguration>(entity =>
        {
            entity.ToTable("AppConfiguration");

            entity.Property(e => e.AppConfigurationId).HasColumnType("varchar(36)");
            entity.Property(e => e.AppName).HasColumnType("varchar");
            entity.Property(e => e.BucketName).HasColumnType("varchar");
            entity.Property(e => e.Comments).HasColumnType("varchar");
            entity.Property(e => e.ConfigurationIconPath).HasColumnType("varchar");
            entity.Property(e => e.CurrentlyInstalledVersion).HasColumnType("varchar");
            entity.Property(e => e.CurrentlyInstalledVersionLabel).HasColumnType("varchar");
            entity.Property(e => e.ETag).HasColumnType("varchar");
            entity.Property(e => e.FileKey).HasColumnType("varchar");
            entity.Property(e => e.FileName).HasColumnType("varchar");
            entity.Property(e => e.LastModified).HasColumnType("bigint");
            entity.Property(e => e.Title).HasColumnType("varchar");
            entity.Property(e => e.Url).HasColumnType("varchar");
            entity.Property(e => e.Version).HasColumnType("varchar");
        });

        modelBuilder.Entity<FormInstance>(entity =>
        {
            entity.ToTable("FormInstance");

            entity.Property(e => e.FormInstanceId).HasColumnType("varchar(36)");
            entity.Property(e => e.DateCreated).HasColumnType("bigint");
            entity.Property(e => e.FormId).HasColumnType("varchar(36)");
            entity.Property(e => e.FormInstanceName).HasColumnType("varchar");
        });

        modelBuilder.Entity<FormValue>(entity =>
        {
            entity.ToTable("FormValue");

            entity.Property(e => e.FormValueId).HasColumnType("varchar(36)");
            entity.Property(e => e.FormInstanceId).HasColumnType("varchar(36)");
            entity.Property(e => e.QuestionId).HasColumnType("varchar");
            entity.Property(e => e.Type).HasColumnType("varchar");
            entity.Property(e => e.Value).HasColumnType("varchar");
        });

        OnModelCreatingPartial(modelBuilder);
    }

    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
}// <auto-generated> This file has been auto generated by EF Core Power Tools. </auto-generated>
#nullable disable

Thiết kế website giá rẻ

Danh mục

dotnet ef migrations add fails on one DbContext succeeds on the other?