public static void ConfigureLogging(
this DbContext db,
Action <string> logger,
Func <string, LogLevel, bool> filter)
{
var serviceProvider = db.GetInfrastructure <IServiceProvider>();
var loggerFactory = (ILoggerFactory)serviceProvider.GetService(typeof(ILoggerFactory));
LogProvider.CreateOrModifyLoggerForDbContext(db.GetType(), loggerFactory, logger, filter);
}
public static Task <ExecutionResult> ExecuteGraphQLQueryAsync(this DbContext context, string query, IDictionary <string, object> variables, string operationName = null, CancellationToken cancellationToken = default(CancellationToken))
{
var exectutor = context.GetInfrastructure().GetService <GraphQLExecutor>();
if (exectutor == null)
{
throw new InvalidOperationException("This context is not enabled for GraphQL. Add GraphQL to context services with .AddGraphQL()");
}
return(exectutor.ExecuteAsync(context, query, variables, operationName, cancellationToken));
}
/// <summary>
/// Creates a proxy instance for an entity type if proxy creation has been turned on.
/// </summary>
/// <param name="context"> The <see cref="DbContext" />. </param>
/// <param name="entityType"> The entity type for which a proxy is needed. </param>
/// <param name="constructorArguments"> Arguments to pass to the entity type constructor. </param>
/// <returns> The proxy instance. </returns>
public static object CreateProxy(
[NotNull] this DbContext context,
[NotNull] Type entityType,
[NotNull] params object[] constructorArguments)
{
Check.NotNull(context, nameof(context));
Check.NotNull(entityType, nameof(entityType));
Check.NotNull(constructorArguments, nameof(constructorArguments));
return(context.GetInfrastructure().CreateProxy(entityType, constructorArguments));
}
public static async Task MigrateUpByStepAsync(this DbContext dbContext)
{
if (dbContext == null)
{
throw new ArgumentNullException(nameof(dbContext));
}
var migrator = dbContext.GetInfrastructure().GetService <IMigrator>();
await dbContext.Database.EnsureDeletedAsync();
foreach (var migration in dbContext.Database.GetMigrations())
{
await migrator.MigrateAsync(migration);
}
}
public static async Task MigrateDownByStepAsync(this DbContext dbContext)
{
_ = dbContext ?? throw new ArgumentNullException(nameof(dbContext));
var migrator = dbContext.GetInfrastructure().GetService <IMigrator>();
await dbContext.Database.EnsureDeletedAsync();
await migrator.MigrateAsync(null);
foreach (var migration in dbContext.Database.GetMigrations().Reverse())
{
await migrator.MigrateAsync(migration);
}
await migrator.MigrateAsync("0");//delete all the things that migration created
}
public static IDbProperties GetDbProperties(this DbContext context)
{
return(context.GetInfrastructure().GetRequiredService <IDbProperties>());
}