Postgres.

models/file.js

@@ -0,0 +1,40 @@
+export default function (sequelize, DataTypes) {
+  const File = sequelize.define('file', {
+    id: { type: DataTypes.STRING(12), primaryKey: true }, // eslint-disable-line new-cap
+    name: DataTypes.TEXT,
+    originalName: DataTypes.TEXT,
+    size: DataTypes.BIGINT,
+    downloads: DataTypes.BIGINT,
+    accessedAt: DataTypes.DATE,
+    status: DataTypes.ENUM('active', 'uploading', 'deleted'), // eslint-disable-line new-cap
+    type: DataTypes.ENUM( // eslint-disable-line new-cap
+      'image',
+      'audio',
+      'video',
+      'archive',
+      'other'
+    ),
+    width: DataTypes.INTEGER,
+    height: DataTypes.INTEGER,
+    ip: 'inet',
+    legacyId: DataTypes.STRING(12), // eslint-disable-line new-cap
+    md5: DataTypes.STRING(32), // eslint-disable-line new-cap
+    malwarePositives: DataTypes.INTEGER,
+  }, {
+    classMethods: {
+      accessed: (id) => sequelize.query(`
+        UPDATE files
+        SET "downloads" = downloads + 1, "accessedAt" = NOW()
+        WHERE "id" = :id`,
+        {
+          replacements: { id },
+          type: sequelize.QueryTypes.UPDATE,
+        }),
+      associate: (models) => {
+        File.belongsTo(models.user);
+      },
+    },
+  });
+
+  return File;
+}