Add auto-reaction support

src/migrations/1547290549908-CreateAutoReactionsTable.ts

@@ -0,0 +1,32 @@
+import { MigrationInterface, QueryRunner, Table } from "typeorm";
+
+export class CreateAutoReactionsTable1547290549908 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<any> {
+    await queryRunner.createTable(
+      new Table({
+        name: "auto_reactions",
+        columns: [
+          {
+            name: "guild_id",
+            type: "bigint",
+            unsigned: true
+          },
+          {
+            name: "channel_id",
+            type: "bigint",
+            unsigned: true
+          },
+          {
+            name: "reactions",
+            type: "text"
+          }
+        ]
+      })
+    );
+    await queryRunner.createPrimaryKey("auto_reactions", ["guild_id", "channel_id"]);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<any> {
+    await queryRunner.dropTable("auto_reactions", true);
+  }
+}