Now logging visits to shorturls

migrations/20210814090340_visit_counter.js

@@ -1,9 +1,9 @@
 
 exports.up = function (knex) {
     return knex.schema.createTable('visits', function (table) {
+        table.increments('id').primary();
         table.timestamp('timestamp').defaultTo(knex.fn.now());
         table.string('shortcode');
-        table.primary(['shortcode', 'timestamp']);
         table.foreign('shortcode').references('shortcode').inTable('urls');
     });
 };