case 4170

server/AyaNova/util/DbUtil.cs

@@ -302,11 +302,48 @@ namespace AyaNova.Util
         }
 
 
+        //case 4170
+        ///////////////////////////////////////////
+        // Remove license key from database
+        // triggered by AYANOVA_REMOVE_LICENSE_FROM_DB flag on boot
+        // This is for potential edge cases when we need
+        // to fix a weird license issue for a customer remotely 
+        // by issuing a new license when they can't boot due to a bad license
+        // e.g. they upgrade and no maint so get too new error on boot
+        // want to renew and keep working so they contact us, buy a maintenance
+        // and need to have it fetch. (or some other unknown future issue)
+        //
+        internal static void RemoveLicenseFromDB(ILogger _log)
+        {
+            _log.LogInformation("Removing license from database \"{0}\"", _dbName);
+
+            //clear all connections so that the database can be dropped
+            Npgsql.NpgsqlConnection.ClearAllPools();
+
+            using (var conn = new Npgsql.NpgsqlConnection(_dbConnectionString))
+            {
+                conn.Open();
+
+                // Create the database desired
+                using (var cmd = new Npgsql.NpgsqlCommand())
+                {
+                    cmd.Connection = conn;
+                    cmd.CommandText = "delete from alicense;";
+                    cmd.ExecuteNonQuery();
+                    _log.LogDebug("License removed");
+                }
+                conn.Close();
+            }
+
+
+        }
+
+
         /////////////////////////////////////////////////////////
         // Erase all user entered data from the db
         // This is called by seeder for trial seeding purposes
         // and by v8 migrate and by license controller when erasing db
-        internal static async Task EmptyBizDataFromDatabaseForSeedingOrImportingAsync(ILogger _log, Guid jobIdToKeep, bool isMigrate=false)
+        internal static async Task EmptyBizDataFromDatabaseForSeedingOrImportingAsync(ILogger _log, Guid jobIdToKeep, bool isMigrate = false)
         {
 
             bool forSeeding = jobIdToKeep != Guid.Empty;