Store supporters in the database

backend/src/migrations/1590616691907-CreateSupportersTable.ts

@@ -0,0 +1,36 @@
+import { MigrationInterface, QueryRunner, Table } from "typeorm";
+
+export class CreateSupportersTable1590616691907 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<any> {
+    await queryRunner.createTable(
+      new Table({
+        name: "supporters",
+        columns: [
+          {
+            name: "user_id",
+            type: "bigint",
+            unsigned: true,
+            isPrimary: true,
+          },
+          {
+            name: "name",
+            type: "varchar",
+            length: "255",
+          },
+          {
+            name: "amount",
+            type: "decimal",
+            precision: 6,
+            scale: 2,
+            isNullable: true,
+            default: null,
+          },
+        ],
+      }),
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<any> {
+    await queryRunner.dropTable("supporters");
+  }
+}