Use sequelize scopes

server/models/application/application.ts

@@ -1,4 +1,3 @@
-import { Transaction } from 'sequelize'
 import { AllowNull, Column, Default, IsInt, Model, Table } from 'sequelize-typescript'
 
 @Table({
@@ -15,21 +14,4 @@ export class ApplicationModel extends Model<ApplicationModel> {
   static countTotal () {
     return ApplicationModel.count()
   }
-
-  static loadMigrationVersion () {
-    const query = {
-      attributes: [ 'migrationVersion' ]
-    }
-
-    return ApplicationModel.findOne(query).then(data => data ? data.migrationVersion : null)
-  }
-
-  static updateMigrationVersion (newVersion: number, transaction: Transaction) {
-    const options = {
-      where: {},
-      transaction: transaction
-    }
-
-    return ApplicationModel.update({ migrationVersion: newVersion }, options)
-  }
 }