public List <Tuple <string, string> > GenerateDebugView(string outputPath)
{
var result = new List <Tuple <string, string> >();
var assembly = Load(outputPath);
if (assembly == null)
{
throw new ArgumentException("Unable to load project assembly");
}
var reporter = new OperationReporter(
new OperationReportHandler());
var operations = new DbContextOperations(reporter, assembly, assembly);
var types = operations.GetContextTypes().ToList();
if (types.Count == 0)
{
throw new ArgumentException("No DbContext types found in the project");
}
foreach (var type in types)
{
var dbContext = operations.CreateContext(types[0].Name);
var debugView = dbContext.Model.AsModel().DebugView.View;
result.Add(new Tuple <string, string>(type.Name, debugView));
}
return(result);
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public virtual MigrationFiles AddMigration(
string name,
string?outputDir,
string?contextType,
string? @namespace)
{
if (outputDir != null)
{
outputDir = Path.GetFullPath(Path.Combine(_projectDir, outputDir));
}
var subNamespace = SubnamespaceFromOutputPath(outputDir);
using var context = _contextOperations.CreateContext(contextType);
var contextClassName = context.GetType().Name;
if (string.Equals(name, contextClassName, StringComparison.Ordinal))
{
throw new OperationException(
DesignStrings.ConflictingContextAndMigrationName(name));
}
var services = _servicesBuilder.Build(context);
EnsureServices(services);
EnsureMigrationsAssembly(services);
using var scope = services.CreateScope();
var scaffolder = scope.ServiceProvider.GetRequiredService <IMigrationsScaffolder>();
var migration =
string.IsNullOrEmpty(@namespace)
// TODO: Honor _nullable (issue #18950)
? scaffolder.ScaffoldMigration(name, _rootNamespace ?? string.Empty, subNamespace, _language)
: scaffolder.ScaffoldMigration(name, null, @namespace, _language);
return(scaffolder.Save(_projectDir, migration, outputDir));
}
private DbContext TryCreateContextUsingAppCode(Type dbContextType, Type startupType)
{
try
{
// Use EF design APIs to get the DBContext instance.
var operationHandler = new OperationReportHandler();
var operationReporter = new OperationReporter(operationHandler);
// EF infers the environment (Development/ Production) based on the environment variable
// ASPNETCORE_ENVIRONMENT. This should already be set up by the CodeGeneration.Design process.
var dbContextOperations = new DbContextOperations(
operationReporter,
dbContextType.GetTypeInfo().Assembly,
startupType.GetTypeInfo().Assembly);
var dbContextService = dbContextOperations.CreateContext(dbContextType.FullName);
return(dbContextService);
}
catch (Exception ex)
{
throw ex.Unwrap(_logger);
}
}