1 files changed, 26 insertions, 0 deletions

diff --git a/server/models/application/application-interface.ts b/server/models/application/application-interface.ts
new file mode 100644
index 000000000..c03513db1
--- /dev/null
+++ b/server/models/application/application-interface.ts
@@ -0,0 +1,26 @@
+import * as Sequelize from 'sequelize'
+
+export namespace ApplicationMethods {
+  export type LoadMigrationVersionCallback = (err: Error, version: number) => void
+  export type LoadMigrationVersion = (callback: LoadMigrationVersionCallback) => void
+
+  export type UpdateMigrationVersionCallback = (err: Error, applicationInstance: ApplicationAttributes) => void
+  export type UpdateMigrationVersion = (newVersion: number, transaction: Sequelize.Transaction, callback: UpdateMigrationVersionCallback) => void
+}
+
+export interface ApplicationClass {
+  loadMigrationVersion: ApplicationMethods.LoadMigrationVersion
+  updateMigrationVersion: ApplicationMethods.UpdateMigrationVersion
+}
+
+export interface ApplicationAttributes {
+  migrationVersion: number
+}
+
+export interface ApplicationInstance extends ApplicationClass, ApplicationAttributes, Sequelize.Instance<ApplicationAttributes> {
+  id: number
+  createdAt: Date
+  updatedAt: Date
+}
+
+export interface ApplicationModel extends ApplicationClass, Sequelize.Model<ApplicationInstance, ApplicationAttributes> {}