feat: Create user model

packages/backend/src/models/user.ts

@@ -0,0 +1,40 @@
+import { Model, QueryContext, ModelOptions } from 'objection';
+import bcrypt from 'bcrypt';
+
+class User extends Model {
+  id!: number
+  email!: string
+  password!: string
+
+  static tableName = 'users';
+
+  static jsonSchema = {
+    type: 'object',
+    required: ['email', 'password'],
+
+    properties: {
+      id: { type: 'integer' },
+      email: { type: 'email', minLength: 1, maxLength: 255 },
+      password: { type: 'string', minLength: 1, maxLength: 255 },
+    }
+  }
+
+  async generateHash() {
+    this.password = await bcrypt.hash(this.password, 10);
+  }
+
+  async $beforeInsert(queryContext: QueryContext) {
+    await super.$beforeInsert(queryContext);
+    await this.generateHash()
+  }
+
+  async $beforeUpdate(opt: ModelOptions, queryContext: QueryContext) {
+    await super.$beforeUpdate(opt, queryContext);
+
+    if(this.password) {
+      await this.generateHash()
+    }
+  }
+}
+
+export default User;