Resolved #2941: Change DbMigrationService to work with multiple IDbSchemaMigrator implementations by default for the startup template

templates/app/aspnet-core/src/MyCompanyName.MyProjectName.Domain/Data/MyProjectNameDbMigrationService.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Linq;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -15,18 +14,18 @@ namespace MyCompanyName.MyProjectName.Data
         public ILogger<MyProjectNameDbMigrationService> Logger { get; set; }
 
         private readonly IDataSeeder _dataSeeder;
-        private readonly IMyProjectNameDbSchemaMigrator _dbSchemaMigrator;
+        private readonly IEnumerable<IMyProjectNameDbSchemaMigrator> _dbSchemaMigrators;
         private readonly ITenantRepository _tenantRepository;
         private readonly ICurrentTenant _currentTenant;
 
         public MyProjectNameDbMigrationService(
             IDataSeeder dataSeeder,
-            IMyProjectNameDbSchemaMigrator dbSchemaMigrator,
+            IEnumerable<IMyProjectNameDbSchemaMigrator> dbSchemaMigrators,
             ITenantRepository tenantRepository,
             ICurrentTenant currentTenant)
         {
             _dataSeeder = dataSeeder;
-            _dbSchemaMigrator = dbSchemaMigrator;
+            _dbSchemaMigrators = dbSchemaMigrators;
             _tenantRepository = tenantRepository;
             _currentTenant = currentTenant;
 
@@ -59,7 +58,11 @@ namespace MyCompanyName.MyProjectName.Data
         private async Task MigrateHostDatabaseAsync()
         {
             Logger.LogInformation("Migrating host database schema...");
-            await _dbSchemaMigrator.MigrateAsync();
+
+            foreach (var migrator in _dbSchemaMigrators)
+            {
+                await migrator.MigrateAsync();
+            }
 
             Logger.LogInformation("Executing host database seed...");
             await _dataSeeder.SeedAsync();
@@ -70,9 +73,14 @@ namespace MyCompanyName.MyProjectName.Data
         private async Task MigrateTenantDatabasesAsync(Tenant tenant)
         {
             Logger.LogInformation($"Migrating schema for {tenant.Name} database...");
-            await _dbSchemaMigrator.MigrateAsync();
+
+            foreach (var migrator in _dbSchemaMigrators)
+            {
+                await migrator.MigrateAsync();
+            }
 
             Logger.LogInformation($"Executing {tenant.Name} tenant database seed...");
+            
             await _dataSeeder.SeedAsync(tenant.Id);
         }
     }

templates/app/aspnet-core/src/MyCompanyName.MyProjectName.EntityFrameworkCore.DbMigrations/EntityFrameworkCore/EntityFrameworkCoreMyProjectNameDbSchemaMigrator.cs

@@ -7,7 +7,6 @@ using Volo.Abp.DependencyInjection;
 
 namespace MyCompanyName.MyProjectName.EntityFrameworkCore
 {
-    [Dependency(ReplaceServices = true)]
     public class EntityFrameworkCoreMyProjectNameDbSchemaMigrator
         : IMyProjectNameDbSchemaMigrator, ITransientDependency
     {