I studied the help here on upgrading to aspnetcore 2.1.0
My database is SQLExpress 2016SP1
I am able to add a migration but when I issue
update-database
at the Package Manager Console, I get an error
A connection was successfully established with the server, but then an error occurred during the login process.
(provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)
The connection string is of the form
Server="Server=myserver;Initial Catalog=mydatabase;Trusted_Connection=True;MultipleActiveResultSets=true
The DbContext is
public class ApiDbContext : IdentityDbContext<ApplicationUser>
{
public ApiDbContext(DbContextOptions<ApiDbContext> options)
: base(options)
{
}
}
The Context Factory is
public class MyContextFactory : IDesignTimeDbContextFactory<ApiDbContext>
{
public ApiDbContext CreateDbContext(string[] args)
{
var optionsBuilder = new DbContextOptionsBuilder<ApiDbContext>();
var builder = new ConfigurationBuilder();
builder.AddJsonFile("appsettings.json");
var config = builder.Build();
var connectionString = config.GetConnectionString("MyDatabase");
optionsBuilder.UseSqlServer(connectionString);
return new ApiDbContext(optionsBuilder.Options);
}
}
[Update]
If I hard code the connection string inside the implementation of IDesignTimeDbContextFactory then I can run the migrations
public class MyContextFactory : IDesignTimeDbContextFactory<ApiDbContext>
{
public ApiDbContext CreateDbContext(string[] args)
{
var optionsBuilder = new DbContextOptionsBuilder<ApiDbContext>();
var connectionString = "Server=myserver;Initial Catalog=mydatabase;Trusted_Connection=True;MultipleActiveResultSets=true";
optionsBuilder.UseSqlServer(connectionString);
return new ApiDbContext(optionsBuilder.Options);
}
}
Hard coding the connection string is not desirable so I would like a better answer.
I am unclear as to why the implementation of IDesignTimeDbContextFactory is needed. (my migration does fail without it )
I have updated my Startup.cs and Progam.cs to match those of a newly generated program where the implementation is not needed.
public class Program
{
public static void Main(string[] args)
{
CreateWebHostBuilder(args).Build().Run();
}
public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>();
}
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.Configure<CookiePolicyOptions>(options =>
{
options.CheckConsentNeeded = context => true;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
services.AddDbContext<ApiDbContext>(options =>
options.UseSqlServer(
Configuration.GetConnectionString("MyDatabase")));
services.AddDefaultIdentity<IdentityUser>()
.AddEntityFrameworkStores<ApiDbContext>();
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1); }
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseDatabaseErrorPage();
}
else
{
app.UseExceptionHandler("/Error");
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseCookiePolicy();
app.UseAuthentication();
app.UseMvc();
}
}
[Update]
I updated to VS2017 version 15.7.3. When I went to repeat the problem and create the first migration, PM displayed the message
The configuration file 'appsettings.json' was not found and is not optional
When I marked this file copy always then both the add-migration and the update-database worked.
