feat(database): 🗃️ Define primeira versão do banco de dados referente a funcionalidade de criar rotas

src/database/migrations/1660009323138-CreateDestinations.ts

@@ -1,42 +1,53 @@
-import {MigrationInterface, QueryRunner, Table} from "typeorm";
+import { MigrationInterface, QueryRunner, Table, TableForeignKey } from 'typeorm';
 
 export class CreateDestinations1660009323138 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.createTable(
+      new Table({
+        name: 'destinations',
+        columns: [
+          {
+            name: 'id_destination',
+            type: 'integer',
+            isPrimary: true,
+            isGenerated: true,
+            generationStrategy: 'increment',
+          },
+          {
+            name: 'route_id',
+            type: 'integer',
+          },
+          {
+            name: 'name',
+            type: 'varchar',
+          },
+          {
+            name: 'latitude',
+            type: 'numeric',
+          },
+          {
+            name: 'longitude',
+            type: 'numeric',
+          },
+        ],
+      }),
+    );
 
-    public async up(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.createTable(
-            new Table({
-              name: 'destinations',
-              columns: [
-                {
-                  name: 'id_destination',
-                  type: 'integer',
-                  isPrimary: true,
-                  isGenerated: true,
-                  generationStrategy: 'increment',
-                },
-                {
-                  name: 'route_id',
-                  type: 'integer',
-                },
-                {
-                  name: 'name',
-                  type: 'varchar',
-                },
-                {
-                  name: 'latitude',
-                  type: 'numeric',
-                },
-                {
-                  name: 'longitude',
-                  type: 'numeric',
-                }
-              ],
-            }),
-          );
-    }
-
-    public async down(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.dropTable('destinations');
-    }
+    await queryRunner.createForeignKey(
+      'destinations',
+      new TableForeignKey({
+        name: 'destinations_route_id_fk', // nome da FK, serve para referenciar numa exclusão pelo QueryRunner se necessário
+        columnNames: ['route_id'], // coluna que vai virar FK
+        referencedColumnNames: ['id_route'], // coluna PK da tabela referenciada
+        referencedTableName: 'routes', // nome da tabela que possui a PK
+        onDelete: 'SET NULL',
+        onUpdate: 'CASCADE',
+      }),
+    );
+  }
 
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.dropTable('destinations');
+    await queryRunner.dropForeignKey('destinations', 'destinations_route_id_fk');
+  }
 }