diff --git a/backend/model/sql/SQLConnection.ts b/backend/model/sql/SQLConnection.ts
index 578254a0..6d07e504 100644
--- a/backend/model/sql/SQLConnection.ts
+++ b/backend/model/sql/SQLConnection.ts
@@ -33,7 +33,7 @@ export class SQLConnection {
         SharingEntity
       ];
       options.synchronize = true;
-      //  options.logging = "all" ;
+      options.logging = "all";
       this.connection = await createConnection(options);
     }
     return this.connection;
@@ -54,7 +54,7 @@ export class SQLConnection {
       SharingEntity
     ];
     options.synchronize = true;
-    options.logging = "all";
+    //options.logging = "all";
     const conn = await createConnection(options);
     await conn.close();
     return true;
@@ -98,6 +98,7 @@ export class SQLConnection {
     try {
       if (this.connection != null) {
         await this.connection.close();
+        this.connection = null;
       }
     } catch (err) {
       console.error(err);
diff --git a/backend/model/sql/enitites/DirectoryEntity.ts b/backend/model/sql/enitites/DirectoryEntity.ts
index a136e638..60739daf 100644
--- a/backend/model/sql/enitites/DirectoryEntity.ts
+++ b/backend/model/sql/enitites/DirectoryEntity.ts
@@ -14,9 +14,15 @@ export class DirectoryEntity implements DirectoryDTO {
   @Column()
   path: string;
 
+  /**
+   * last time the directory was modified (from outside, eg.: a new photo was added)
+   */
   @Column('bigint')
   public lastModified: number;
 
+  /**
+   * Last time the directory was fully scanned, not only for a few photos to create a preview
+   */
   @Column({type: "bigint", nullable: true})
   public lastScanned: number;
 
diff --git a/package.json b/package.json
index 605e9f79..285f0e92 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pigallery2",
-  "version": "1.0.0-rc.1",
+  "version": "1.0.0",
   "description": "This is a photo gallery optimised for running low resource servers (especially on raspberry pi)",
   "author": "Patrik J. Braun",
   "homepage": "https://github.com/bpatrik/PiGallery2",
@@ -11,7 +11,7 @@
     "install": "tsc && ng build -prod",
     "build-release": "gulp build-release",
     "pretest": "tsc",
-    "test": "ng test --single-run && mocha --recursive test/backend/unit",
+    "test": "ng test --single-run && mocha --recursive test/backend/unit && mocha --recursive test/backend/integration",
     "start": "node ./backend/index",
     "ng": "ng",
     "lint": "ng lint",
@@ -37,7 +37,7 @@
     "ts-exif-parser": "0.1.23",
     "ts-node-iptc": "1.0.9",
     "typeconfig": "1.0.5",
-    "typeorm": "0.1.1",
+    "typeorm": "0.1.9",
     "winston": "2.4.0"
   },
   "devDependencies": {
diff --git a/test/backend/integration/model/sql/typeorm.ts b/test/backend/integration/model/sql/typeorm.ts
new file mode 100644
index 00000000..43753fa4
--- /dev/null
+++ b/test/backend/integration/model/sql/typeorm.ts
@@ -0,0 +1,212 @@
+import {expect} from "chai";
+import * as fs from "fs";
+import * as path from "path";
+import {Config} from "../../../../../common/config/private/Config";
+import {DatabaseType} from "../../../../../common/config/private/IPrivateConfig";
+import {SQLConnection} from "../../../../../backend/model/sql/SQLConnection";
+import {UserEntity} from "../../../../../backend/model/sql/enitites/UserEntity";
+import {UserRoles} from "../../../../../common/entities/UserDTO";
+import {PasswordHelper} from "../../../../../backend/model/PasswordHelper";
+import {DirectoryEntity} from "../../../../../backend/model/sql/enitites/DirectoryEntity";
+import {
+  CameraMetadataEntity, GPSMetadataEntity, ImageSizeEntity, PhotoEntity, PhotoMetadataEntity,
+  PositionMetaDataEntity
+} from "../../../../../backend/model/sql/enitites/PhotoEntity";
+
+describe('Typeorm integration', () => {
+
+
+  const tempDir = path.join(__dirname, "../../tmp");
+  const dbPath = path.join(tempDir, "test.db");
+  const setUpSqlDB = () => {
+    if (fs.existsSync(dbPath)) {
+      fs.unlinkSync(dbPath);
+    }
+    if (!fs.existsSync(tempDir)) {
+      fs.mkdirSync(tempDir);
+    }
+
+    Config.Server.database.type = DatabaseType.sqlite;
+    Config.Server.database.sqlite.storage = dbPath;
+
+  };
+
+  const teardownUpSqlDB = async () => {
+    await SQLConnection.close();
+    if (fs.existsSync(dbPath)) {
+      fs.unlinkSync(dbPath);
+    }
+    if (fs.existsSync(tempDir)) {
+      fs.rmdirSync(tempDir);
+    }
+  };
+
+  beforeEach(() => {
+    setUpSqlDB();
+  });
+
+  afterEach(async () => {
+    await teardownUpSqlDB();
+  });
+
+
+  const getDir = () => {
+    const d = new DirectoryEntity();
+    d.name = "test dir";
+    d.path = ".";
+    d.lastModified = Date.now();
+    d.lastScanned = null;
+    d.parent = null;
+    d.photos = [];
+    d.directories = [];
+    return d;
+  };
+
+
+  const getPhoto = () => {
+    const sd = new ImageSizeEntity();
+    sd.height = 200;
+    sd.width = 200;
+    const gps = new GPSMetadataEntity();
+    gps.altitude = 1;
+    gps.latitude = 1;
+    gps.longitude = 1;
+    const pd = new PositionMetaDataEntity();
+    pd.city = "New York";
+    pd.country = "Alderan";
+    pd.state = "Death star";
+    pd.GPSData = gps;
+    const cd = new CameraMetadataEntity();
+    cd.ISO = 100;
+    cd.model = "60D";
+    cd.maker = "Canon";
+    cd.fStop = 1;
+    cd.exposure = 1;
+    cd.focalLength = 1;
+    cd.lens = "Lens";
+    const m = new PhotoMetadataEntity();
+    m.keywords = ["apple"];
+    m.cameraData = cd;
+    m.positionData = pd;
+    m.size = sd;
+    m.creationDate = Date.now();
+    m.fileSize = 123456789;
+
+
+    const d = new PhotoEntity();
+    d.name = "test photo.jpg";
+    d.directory = null;
+    d.metadata = m;
+    return d;
+  };
+
+  it('should open and close connection', async () => {
+    const conn = await SQLConnection.getConnection();
+    expect(conn.isConnected).to.equal(true);
+    await SQLConnection.close();
+    expect(conn.isConnected).to.equal(false);
+  });
+
+  it('should open and close connection twice', async () => {
+    let conn = await SQLConnection.getConnection();
+    expect(conn.isConnected).to.equal(true);
+    await SQLConnection.close();
+    expect(conn.isConnected).to.equal(false);
+
+    conn = await SQLConnection.getConnection();
+    expect(conn.isConnected).to.equal(true);
+    await SQLConnection.close();
+    expect(conn.isConnected).to.equal(false);
+  });
+
+  it('should add a user', async () => {
+    const conn = await SQLConnection.getConnection();
+    const userRepository = conn.getRepository(UserEntity);
+    const a = new UserEntity();
+    a.name = "test";
+    a.password = PasswordHelper.cryptPassword("test");
+    a.role = UserRoles.Admin;
+    await userRepository.save(a);
+    expect((await userRepository.find()).length).to.equal(1);
+  });
+
+
+  it('should add a dir', async () => {
+    const conn = await SQLConnection.getConnection();
+    const dr = conn.getRepository(DirectoryEntity);
+    await dr.save(getDir());
+    expect((await dr.find()).length).to.equal(1);
+  });
+
+  it('should add a photo', async () => {
+    const conn = await SQLConnection.getConnection();
+    const pr = conn.getRepository(PhotoEntity);
+    const dir = await conn.getRepository(DirectoryEntity).save(getDir());
+    let photo = getPhoto();
+    photo.directory = dir;
+    await pr.save(photo);
+    expect((await pr.find()).length).to.equal(1);
+  });
+
+  it('should find a photo', async () => {
+    const conn = await SQLConnection.getConnection();
+    const pr = conn.getRepository(PhotoEntity);
+    const dir = await conn.getRepository(DirectoryEntity).save(getDir());
+    let photo = getPhoto();
+    photo.directory = dir;
+    await pr.save(photo);
+
+    let photos = await pr
+      .createQueryBuilder("photo")
+      .orderBy("photo.metadata.creationDate", "ASC")
+      .where('photo.metadata.positionData.city LIKE :text COLLATE utf8_general_ci', {text: "%" + photo.metadata.positionData.city + "%"})
+      .innerJoinAndSelect("photo.directory", "directory")
+      .limit(10)
+      .getMany();
+
+    expect(photos.length).to.equal(1);
+    expect(photos[0].directory.name).to.equal(dir.name);
+  });
+
+
+  it('should not find a photo', async () => {
+    const conn = await SQLConnection.getConnection();
+    const pr = conn.getRepository(PhotoEntity);
+    const dir = await conn.getRepository(DirectoryEntity).save(getDir());
+    let photo = getPhoto();
+    photo.directory = dir;
+    const city = photo.metadata.positionData.city;
+    photo.metadata.positionData = null;
+    await pr.save(photo);
+    let photos = await pr
+      .createQueryBuilder("photo")
+      .orderBy("photo.metadata.creationDate", "ASC")
+      .where('photo.metadata.positionData.city LIKE :text COLLATE utf8_general_ci', {text: "%" + city + "%"})
+      .innerJoinAndSelect("photo.directory", "directory")
+      .limit(10)
+      .getMany();
+
+    expect(photos.length).to.equal(0);
+  });
+
+  it('should open and close connection twice  with photo added ', async () => {
+    console.log("start-------------------------------------");
+    let conn = await SQLConnection.getConnection();
+    console.log("opnenn-------------------------------------");
+    const dir = await conn.getRepository(DirectoryEntity).save(getDir());
+    let dir2 = getDir();
+    dir2.parent = dir;
+    await conn.getRepository(DirectoryEntity).save(dir2);
+    let photo = getPhoto();
+    photo.directory = dir2;
+    await await conn.getRepository(PhotoEntity).save(photo);
+    await SQLConnection.close();
+    expect(conn.isConnected).to.equal(false);
+
+    conn = await SQLConnection.getConnection();
+    expect(conn.isConnected).to.equal(true);
+    await SQLConnection.close();
+    expect(conn.isConnected).to.equal(false);
+  });
+
+});