diff --git a/.githooks/install_hooks.sh b/.githooks/install_hooks.sh
deleted file mode 100755
index 6187077..0000000
--- a/.githooks/install_hooks.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-exec("ln -s ../../.githooks/pre-commit ".__DIR__."/../.git/hooks/pre-commit");
-exec("chmod +x ".__DIR__ . "/../.git/hooks/pre-commit");
diff --git a/.githooks/pre-commit b/.githooks/pre-commit
deleted file mode 100755
index da4eb12..0000000
--- a/.githooks/pre-commit
+++ /dev/null
@@ -1,156 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-/**
- * .git/hooks/pre-commit
- *
- * This pre-commit hooks will check for PHP errors (lint), and make sure the
- * code is PSR-2 compliant.
- */
-class PreCommitChecks
-{
-    /**
-     * @var bool
-     */
-    private $error = false;
-
-    /**
-     * @return int
-     */
-    public function run()
-    {
-        $this->writeln();
-        $this->writeln('Checking commit requirements', 0);
-        $this->writeln();
-
-        if ($this->isRebase()) {
-            echo 'Not on branch' . PHP_EOL;
-
-            return 0;
-        }
-
-        $this->runPhpLint($this->getCommittedFileList());
-        $this->runPhpCsFixer($this->getCommittedFileList());
-
-        if ($this->error) {
-            $this->writeln("If you are ABSOLUTELY sure your code is correct, you can use 'git commit --no-verify' to bypass this validation", 0);
-        }
-
-        exit((int) $this->error);
-    }
-
-    /**
-     * @param string $output
-     * @param int    $level
-     */
-    private function writeln($output = '', $level = 1)
-    {
-        $this->write($output, $level);
-        echo PHP_EOL;
-    }
-
-    /**
-     * @param string $output
-     * @param int    $level
-     */
-    private function write($output = '', $level = 1)
-    {
-        $spaces = $level * 3;
-
-        echo str_pad($output, strlen($output) + $spaces, ' ', STR_PAD_LEFT);
-    }
-
-    /**
-     * @return bool
-     */
-    private function isRebase()
-    {
-        $output = [];
-        exec('git symbolic-ref --short -q HEAD', $output);
-
-        return empty($output);
-    }
-
-    /**
-     * @param string $extension
-     * @return string[]
-     */
-    private function getCommittedFileList($extension = 'php')
-    {
-        exec("git diff --name-only --diff-filter=ACMRTUXB \"HEAD\" | grep -e '\." . $extension . "$'", $fileList);
-
-        return $fileList;
-    }
-
-    /**
-     * @param array $fileList
-     */
-    private function runPhpLint(array $fileList)
-    {
-        $this->writeln('# Checking php syntax');
-        $this->writeln('> php -l');
-
-        foreach ($fileList as $file) {
-            exec('php -l ' . escapeshellarg($file) . ' 2> /dev/null', $output, $return);
-            if ($return !== 0) {
-                $this->writeln('- ' . $output[1], 2);
-                $this->error = true;
-            }
-        }
-
-        $this->writeln();
-    }
-
-    /**
-     * @param array $fileList
-     */
-    private function runPhpCsFixer(array $fileList)
-    {
-        $this->writeln('# Checking php code style');
-        $this->writeln('> php-cs-fixer fix -v --no-ansi --dry-run');
-
-        if (!$this->isPHPCSFixerAvailable()) {
-            $this->error = true;
-            $this->writeln('- php-cs-fixer is NOT installed. Please install composer with dev dependencies.', 2);
-            $this->writeln();
-
-            return;
-        }
-
-        $fixes = [];
-        foreach ($fileList as $file) {
-            exec('./vendor/bin/php-cs-fixer fix -v --no-ansi --dry-run ' . escapeshellarg($file) . ' 2>&1', $output, $return);
-
-            if ($return !== 0) {
-                $this->writeln('- ' . preg_replace('#^(\s+)?\d\)\s#', '', $output[3]), 2);
-                $fixes[] = './vendor/bin/php-cs-fixer fix -v ' . escapeshellarg($file);
-                $this->error = true;
-            }
-        }
-
-        if (!empty($fixes)) {
-            $this->writeln();
-            $this->writeln('Help:', 2);
-            foreach ($fixes as $fix) {
-                $this->writeln($fix, 3);
-            }
-        }
-
-        $this->writeln();
-    }
-
-    /**
-     * @return bool
-     */
-    private function isPHPCSFixerAvailable()
-    {
-        $output = [];
-        $return = 0;
-        exec('command -v ./vendor/bin/php-cs-fixer >/dev/null 2>&1', $output, $return);
-
-        return !(bool) $return;
-    }
-}
-
-$checks = new PreCommitChecks();
-$checks->run();
diff --git a/README.md b/README.md
index 6f3f462..825760e 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Based on Symfony 4.1
 ```sh
 $ composer install
 ```
-- create `.env file with `cp .env.dist .env``
+- create `.env` file with `cp .env.dist .env`
 - make adjustments according to your setup (e.g. DB connection)
 ```sh
 $ php bin/console doctrine:database:create
diff --git a/bin/pre-commit.sh b/bin/pre-commit.sh
new file mode 100755
index 0000000..541f2e8
--- /dev/null
+++ b/bin/pre-commit.sh
@@ -0,0 +1,95 @@
+#!/bin/sh
+
+PROJECT=`php -r "echo dirname(dirname(realpath('$0')));"`
+STAGED_FILES_CMD=`git diff --cached --name-only --diff-filter=ACMR HEAD | grep \\\\.*`
+
+# Determine if a file list is passed
+if [ "$#" -eq 1 ]
+then
+	oIFS=$IFS
+	IFS='
+	'
+	SFILES="$1"
+	IFS=$oIFS
+fi
+SFILES=${SFILES:-$STAGED_FILES_CMD}
+
+for FILE in $SFILES
+ do
+ 	FILES="$FILES $PROJECT/$FILE"
+ done
+
+if [ "$FILES" != "" ]
+then
+    echo "fix code style and update the commit"
+	vendor/bin/php-cs-fixer fix --config=.php_cs.dist --quiet --allow-risky=yes -vv $FILES
+    git add $FILES
+fi
+
+if [ "$FILES" != "" ]
+then
+    echo "Static code analysis..."
+    vendor/bin/phpstan analyse src --level 7 --no-progress
+	if [ $? != 0 ]
+	then
+		echo "Static code analysis failed. Fix the error before commit."
+		exit 1
+	fi
+fi
+
+if [ "$FILES" != "" ]
+then
+    echo "Checking for insecure libs..."
+    vendor/bin/security-checker security:check
+	if [ $? != 0 ]
+	then
+		echo "Insecure libraries found. Fix the error before commit."
+		exit 1
+	fi
+fi
+
+if [ "$FILES" != "" ]
+then
+    echo "Linting Twig templates..."
+    bin/console lint:twig templates
+	if [ $? != 0 ]
+	then
+		echo "Twig linting failed. Fix the error before commit."
+		exit 1
+	fi
+fi
+
+if [ "$FILES" != "" ]
+then
+    echo "Linting Yaml files..."
+    bin/console lint:yaml config
+	if [ $? != 0 ]
+	then
+		echo "Yaml linting failed. Fix the error before commit."
+		exit 1
+	fi
+fi
+
+if [ "$FILES" != "" ]
+then
+    echo "Linting PHP files..."
+    vendor/bin/parallel-lint src
+	if [ $? != 0 ]
+	then
+		echo "PHP linting failed. Fix the error before commit."
+		exit 1
+	fi
+fi
+
+if [ "$FILES" != "" ]
+then
+    echo "Checking for var_dump()s..."
+    vendor/bin/var-dump-check src --doctrine --symfony
+	if [ $? != 0 ]
+	then
+		echo "Debug outputs found. Fix the error before commit."
+		exit 1
+	fi
+fi
+
+exit $?
diff --git a/composer.json b/composer.json
index a4e7729..2723242 100644
--- a/composer.json
+++ b/composer.json
@@ -7,24 +7,41 @@
     "require": {
         "php": "^7.1.3",
         "ext-iconv": "*",
+        "doctrine/collections": "1.5.0",
+        "doctrine/doctrine-bundle": "1.10.0",
+        "doctrine/doctrine-cache-bundle": "1.3.5",
+        "doctrine/doctrine-migrations-bundle": "1.3.2",
+        "doctrine/orm": "2.6.3",
+        "knplabs/knp-components": "1.3.10",
         "knplabs/knp-paginator-bundle": "2.8.0",
-        "sensio/framework-extra-bundle": "5.2.0",
-        "symfony/apache-pack": "^1.0",
-        "symfony/asset": "4.1.4",
-        "symfony/console": "4.1.4",
-        "symfony/dotenv": "4.1.4",
-        "symfony/flex": "1.1.1",
-        "symfony/form": "4.1.4",
-        "symfony/framework-bundle": "4.1.4",
+        "sensio/framework-extra-bundle": "5.2.4",
+        "symfony/apache-pack": "1.0.1",
+        "symfony/asset": "4.2.1",
+        "symfony/config": "4.2.1",
+        "symfony/console": "4.2.1",
+        "symfony/dependency-injection": "4.2.1",
+        "symfony/doctrine-bridge": "4.2.1",
+        "symfony/dotenv": "4.2.1",
+        "symfony/flex": "1.1.8",
+        "symfony/form": "4.2.1",
+        "symfony/framework-bundle": "4.2.1",
+        "symfony/http-foundation": "4.2.1",
+        "symfony/http-kernel": "4.2.1",
         "symfony/orm-pack": "1.0.5",
-        "symfony/translation": "4.1.4",
-        "symfony/twig-bundle": "4.1.4",
-        "symfony/validator": "4.1.4",
-        "symfony/web-server-bundle": "4.1.4",
-        "symfony/yaml": "4.1.4"
+        "symfony/routing": "4.2.1",
+        "symfony/translation": "4.2.1",
+        "symfony/twig-bundle": "4.2.1",
+        "symfony/validator": "4.2.1",
+        "symfony/web-server-bundle": "4.2.1",
+        "symfony/yaml": "4.2.1"
+
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "2.13.0"
+        "friendsofphp/php-cs-fixer": "2.13.1",
+        "jakub-onderka/php-parallel-lint": "1.0.0",
+        "jakub-onderka/php-var-dump-check": "0.3.0",
+        "phpstan/phpstan": "0.10.6",
+        "sensiolabs/security-checker": "^5.0"
     },
     "config": {
         "preferred-install": {
@@ -37,11 +54,6 @@
             "App\\": "src/"
         }
     },
-    "autoload-dev": {
-        "psr-4": {
-            "App\\Tests\\": "tests/"
-        }
-    },
     "replace": {
         "symfony/polyfill-iconv": "*",
         "symfony/polyfill-php71": "*",
@@ -51,11 +63,12 @@
     "scripts": {
         "auto-scripts": {
             "cache:clear": "symfony-cmd",
-            "assets:install --symlink --relative %PUBLIC_DIR%": "symfony-cmd"
+            "assets:install --symlink --relative %PUBLIC_DIR%": "symfony-cmd",
+            "security-checker security:check": "script"
         },
         "post-install-cmd": [
             "@auto-scripts",
-            "./.githooks/install_hooks.sh"
+            "ln -sf ../../bin/pre-commit.sh .git/hooks/pre-commit"
         ],
         "post-update-cmd": [
             "@auto-scripts"
diff --git a/composer.lock b/composer.lock
index cfb8f10..70f196e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "b3b41a9b97bad3f9a8c7ac02a09f4481",
+    "content-hash": "9381fd4b18c923778d4a8947ae2c88d5",
     "packages": [
         {
             "name": "doctrine/annotations",
@@ -218,16 +218,16 @@
         },
         {
             "name": "doctrine/common",
-            "version": "v2.9.0",
+            "version": "v2.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/common.git",
-                "reference": "a210246d286c77d2b89040f8691ba7b3a713d2c1"
+                "reference": "30e33f60f64deec87df728c02b107f82cdafad9d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/common/zipball/a210246d286c77d2b89040f8691ba7b3a713d2c1",
-                "reference": "a210246d286c77d2b89040f8691ba7b3a713d2c1",
+                "url": "https://api.github.com/repos/doctrine/common/zipball/30e33f60f64deec87df728c02b107f82cdafad9d",
+                "reference": "30e33f60f64deec87df728c02b107f82cdafad9d",
                 "shasum": ""
             },
             "require": {
@@ -237,7 +237,7 @@
                 "doctrine/event-manager": "^1.0",
                 "doctrine/inflector": "^1.0",
                 "doctrine/lexer": "^1.0",
-                "doctrine/persistence": "^1.0",
+                "doctrine/persistence": "^1.1",
                 "doctrine/reflection": "^1.0",
                 "php": "^7.1"
             },
@@ -250,7 +250,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.9.x-dev"
+                    "dev-master": "2.10.x-dev"
                 }
             },
             "autoload": {
@@ -288,29 +288,27 @@
                     "email": "ocramius@gmail.com"
                 }
             ],
-            "description": "Common Library for Doctrine projects",
-            "homepage": "https://www.doctrine-project.org",
+            "description": "PHP Doctrine Common project is a library that provides additional functionality that other Doctrine projects depend on such as better reflection support, persistence interfaces, proxies, event system and much more.",
+            "homepage": "https://www.doctrine-project.org/projects/common.html",
             "keywords": [
-                "annotations",
-                "collections",
-                "eventmanager",
-                "persistence",
-                "spl"
+                "common",
+                "doctrine",
+                "php"
             ],
-            "time": "2018-07-12T21:16:12+00:00"
+            "time": "2018-11-21T01:24:55+00:00"
         },
         {
             "name": "doctrine/dbal",
-            "version": "v2.8.0",
+            "version": "v2.9.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/dbal.git",
-                "reference": "5140a64c08b4b607b9bedaae0cedd26f04a0e621"
+                "reference": "ec74d6e300d78fbc896669c3ca57ef9719adc9c6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/dbal/zipball/5140a64c08b4b607b9bedaae0cedd26f04a0e621",
-                "reference": "5140a64c08b4b607b9bedaae0cedd26f04a0e621",
+                "url": "https://api.github.com/repos/doctrine/dbal/zipball/ec74d6e300d78fbc896669c3ca57ef9719adc9c6",
+                "reference": "ec74d6e300d78fbc896669c3ca57ef9719adc9c6",
                 "shasum": ""
             },
             "require": {
@@ -320,11 +318,10 @@
                 "php": "^7.1"
             },
             "require-dev": {
-                "doctrine/coding-standard": "^4.0",
+                "doctrine/coding-standard": "^5.0",
                 "jetbrains/phpstorm-stubs": "^2018.1.2",
                 "phpstan/phpstan": "^0.10.1",
-                "phpunit/phpunit": "^7.1.2",
-                "phpunit/phpunit-mock-objects": "!=3.2.4,!=3.2.5",
+                "phpunit/phpunit": "^7.4",
                 "symfony/console": "^2.0.5|^3.0|^4.0",
                 "symfony/phpunit-bridge": "^3.4.5|^4.0.5"
             },
@@ -337,13 +334,13 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8.x-dev",
+                    "dev-master": "2.9.x-dev",
                     "dev-develop": "3.0.x-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Doctrine\\DBAL\\": "lib/"
+                "psr-4": {
+                    "Doctrine\\DBAL\\": "lib/Doctrine/DBAL"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -368,28 +365,32 @@
                     "email": "jonwage@gmail.com"
                 }
             ],
-            "description": "Database Abstraction Layer",
-            "homepage": "http://www.doctrine-project.org",
+            "description": "Powerful PHP database abstraction layer (DBAL) with many features for database schema introspection and management.",
+            "homepage": "https://www.doctrine-project.org/projects/dbal.html",
             "keywords": [
+                "abstraction",
                 "database",
                 "dbal",
+                "mysql",
                 "persistence",
+                "pgsql",
+                "php",
                 "queryobject"
             ],
-            "time": "2018-07-13T03:16:35+00:00"
+            "time": "2018-12-14T04:51:13+00:00"
         },
         {
             "name": "doctrine/doctrine-bundle",
-            "version": "1.9.1",
+            "version": "1.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/DoctrineBundle.git",
-                "reference": "703fad32e4c8cbe609caf45a71a1d4266c830f0f"
+                "reference": "82d2c63cd09acbde2332f55d9aa7b28aefe4983d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/DoctrineBundle/zipball/703fad32e4c8cbe609caf45a71a1d4266c830f0f",
-                "reference": "703fad32e4c8cbe609caf45a71a1d4266c830f0f",
+                "url": "https://api.github.com/repos/doctrine/DoctrineBundle/zipball/82d2c63cd09acbde2332f55d9aa7b28aefe4983d",
+                "reference": "82d2c63cd09acbde2332f55d9aa7b28aefe4983d",
                 "shasum": ""
             },
             "require": {
@@ -407,8 +408,8 @@
             },
             "require-dev": {
                 "doctrine/orm": "~2.4",
+                "php-coveralls/php-coveralls": "^2.1",
                 "phpunit/phpunit": "^4.8.36|^5.7|^6.4",
-                "satooshi/php-coveralls": "^1.0",
                 "symfony/phpunit-bridge": "~2.7|~3.0|~4.0",
                 "symfony/property-info": "~2.8|~3.0|~4.0",
                 "symfony/validator": "~2.7|~3.0|~4.0",
@@ -423,7 +424,7 @@
             "type": "symfony-bundle",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.8.x-dev"
+                    "dev-master": "1.9.x-dev"
                 }
             },
             "autoload": {
@@ -461,20 +462,20 @@
                 "orm",
                 "persistence"
             ],
-            "time": "2018-04-19T14:07:39+00:00"
+            "time": "2018-11-30T13:53:17+00:00"
         },
         {
             "name": "doctrine/doctrine-cache-bundle",
-            "version": "1.3.3",
+            "version": "1.3.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/DoctrineCacheBundle.git",
-                "reference": "4c8e363f96427924e7e519c5b5119b4f54512697"
+                "reference": "5514c90d9fb595e1095e6d66ebb98ce9ef049927"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/DoctrineCacheBundle/zipball/4c8e363f96427924e7e519c5b5119b4f54512697",
-                "reference": "4c8e363f96427924e7e519c5b5119b4f54512697",
+                "url": "https://api.github.com/repos/doctrine/DoctrineCacheBundle/zipball/5514c90d9fb595e1095e6d66ebb98ce9ef049927",
+                "reference": "5514c90d9fb595e1095e6d66ebb98ce9ef049927",
                 "shasum": ""
             },
             "require": {
@@ -487,7 +488,7 @@
                 "instaclick/coding-standard": "~1.1",
                 "instaclick/object-calisthenics-sniffs": "dev-master",
                 "instaclick/symfony2-coding-standard": "dev-remaster",
-                "phpunit/phpunit": "~4|~5",
+                "phpunit/phpunit": "~4.8.36|~5.6|~6.5|~7.0",
                 "predis/predis": "~0.8",
                 "satooshi/php-coveralls": "^1.0",
                 "squizlabs/php_codesniffer": "~1.5",
@@ -511,7 +512,10 @@
             "autoload": {
                 "psr-4": {
                     "Doctrine\\Bundle\\DoctrineCacheBundle\\": ""
-                }
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -544,25 +548,25 @@
                 }
             ],
             "description": "Symfony Bundle for Doctrine Cache",
-            "homepage": "http://www.doctrine-project.org",
+            "homepage": "https://www.doctrine-project.org",
             "keywords": [
                 "cache",
                 "caching"
             ],
-            "time": "2018-03-27T09:22:12+00:00"
+            "time": "2018-11-09T06:25:35+00:00"
         },
         {
             "name": "doctrine/doctrine-migrations-bundle",
-            "version": "v1.3.1",
+            "version": "v1.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/DoctrineMigrationsBundle.git",
-                "reference": "a9e506369f931351a2a6dd2aef588a822802b1b7"
+                "reference": "49fa399181db4bf4f9f725126bd1cb65c4398dce"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/DoctrineMigrationsBundle/zipball/a9e506369f931351a2a6dd2aef588a822802b1b7",
-                "reference": "a9e506369f931351a2a6dd2aef588a822802b1b7",
+                "url": "https://api.github.com/repos/doctrine/DoctrineMigrationsBundle/zipball/49fa399181db4bf4f9f725126bd1cb65c4398dce",
+                "reference": "49fa399181db4bf4f9f725126bd1cb65c4398dce",
                 "shasum": ""
             },
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+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php72.git",
+                "reference": "9050816e2ca34a8e916c3a0ae8b9c2fccf68b631"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/9050816e2ca34a8e916c3a0ae8b9c2fccf68b631",
+                "reference": "9050816e2ca34a8e916c3a0ae8b9c2fccf68b631",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
                     "Symfony\\Polyfill\\Php72\\": ""
                 },
                 "files": [
@@ -4318,29 +5382,30 @@
                 "portable",
                 "shim"
             ],
-            "time": "2018-08-06T14:22:27+00:00"
+            "time": "2018-09-21T13:07:52+00:00"
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v4.1.4",
+            "version": "v4.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "966c982df3cca41324253dc0c7ffe76b6076b705"
+                "reference": "ec076716412274e51f8a7ea675d9515e5c311123"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/966c982df3cca41324253dc0c7ffe76b6076b705",
-                "reference": "966c982df3cca41324253dc0c7ffe76b6076b705",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/ec076716412274e51f8a7ea675d9515e5c311123",
+                "reference": "ec076716412274e51f8a7ea675d9515e5c311123",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
+                "php": "^7.1.3",
+                "symfony/contracts": "^1.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.1-dev"
+                    "dev-master": "4.2-dev"
                 }
             },
             "autoload": {
@@ -4367,7 +5432,7 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T11:00:49+00:00"
+            "time": "2018-11-11T19:52:12+00:00"
         }
     ],
     "aliases": [],
diff --git a/config/packages/security_checker.yaml b/config/packages/security_checker.yaml
new file mode 100644
index 0000000..0f9cf00
--- /dev/null
+++ b/config/packages/security_checker.yaml
@@ -0,0 +1,9 @@
+services:
+    SensioLabs\Security\SecurityChecker:
+        public: false
+
+    SensioLabs\Security\Command\SecurityCheckerCommand:
+        arguments: ['@SensioLabs\Security\SecurityChecker']
+        public: false
+        tags:
+            - { name: console.command, command: 'security:check' }
diff --git a/src/Controller/DokoController.php b/src/Controller/DokoController.php
index 905ac9c..7197ce1 100644
--- a/src/Controller/DokoController.php
+++ b/src/Controller/DokoController.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * The MIT License (MIT)
  *
@@ -29,10 +29,11 @@
 use App\Entity\Player;
 use App\Entity\Round;
 use Doctrine\Common\Collections\ArrayCollection;
-use Doctrine\ORM\EntityManager;
+use Doctrine\ORM\EntityManagerInterface;
 use Knp\Component\Pager\Pagination\PaginationInterface;
+use Knp\Component\Pager\PaginatorInterface;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
-use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\Extension\Core\Type\IntegerType;
@@ -44,18 +45,45 @@
 use Symfony\Component\Form\SubmitButton;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
+use Symfony\Component\Translation\TranslatorInterface;
 
-class DokoController extends Controller
+class DokoController extends AbstractController
 {
     /**
-     * @var EntityManager
+     * @var EntityManagerInterface
      */
     private $em;
 
+    /**
+     * @var TranslatorInterface
+     */
+    private $translator;
+
+    /**
+     * @var SessionInterface
+     */
+    private $session;
+
+    /**
+     * @var PaginatorInterface
+     */
+    private $paginator;
+
+    public function __construct(
+        EntityManagerInterface $em,
+        TranslatorInterface $translator,
+        SessionInterface $session,
+        PaginatorInterface $paginator
+    ) {
+        $this->em = $em;
+        $this->translator = $translator;
+        $this->session = $session;
+        $this->paginator = $paginator;
+    }
+
     /**
      * @Route("/")
-     *
-     * @return Response
      */
     public function indexAction(): Response
     {
@@ -66,20 +94,11 @@ public function indexAction(): Response
      * creates a new player
      *
      * @Route("/createPlayer")
-     *
-     * @param Request $request
-     *
-     * @throws \LogicException
-     * @throws \Doctrine\ORM\ORMInvalidArgumentException
-     * @throws \Doctrine\ORM\ORMException
-     * @throws \Doctrine\ORM\OptimisticLockException
-     *
-     * @return Response
      */
     public function createPlayerAction(Request $request): Response
     {
         $player = new Player();
-        $buttonTranslation = $this->get('translator')->trans('create', [], 'create_player');
+        $buttonTranslation = $this->translator->trans('create', [], 'create_player');
 
         /* @var FormInterface $playerForm */
         $playerForm = $this->createFormBuilder($player)
@@ -90,8 +109,8 @@ public function createPlayerAction(Request $request): Response
         $playerForm->handleRequest($request);
 
         if ($playerForm->isSubmitted()) {
-            $this->getEm()->persist($player);
-            $this->getEm()->flush($player);
+            $this->em->persist($player);
+            $this->em->flush();
 
             return $this->redirectToRoute('app_doko_index');
         }
@@ -106,20 +125,10 @@ public function createPlayerAction(Request $request): Response
      * enter a new game with its points
      *
      * @Route("/enterPoints")
-     *
-     * @param Request $request
-     *
-     * @throws \Doctrine\ORM\ORMInvalidArgumentException
-     * @throws \OutOfBoundsException
-     * @throws \LogicException
-     * @throws \Doctrine\ORM\ORMException
-     * @throws \Doctrine\ORM\OptimisticLockException
-     *
-     * @return Response
      */
     public function enterPointsAction(Request $request): Response
     {
-        $pointsForm = $this->createPointsForm($this->get('session')->get('playerIds', []));
+        $pointsForm = $this->createPointsForm($this->session->get('playerIds', []));
 
         $pointsForm->handleRequest($request);
 
@@ -163,10 +172,10 @@ public function enterPointsAction(Request $request): Response
                 $participants->add($participant);
             }
             $round->setParticipants($participants);
-            $this->getEm()->persist($round);
-            $this->getEm()->flush($round);
+            $this->em->persist($round);
+            $this->em->flush();
 
-            $this->get('session')->set('playerIds', $playerIds);
+            $this->session->set('playerIds', $playerIds);
 
             /** @var SubmitButton $saveButton */
             $saveButton = $pointsForm->get('save');
@@ -185,12 +194,6 @@ public function enterPointsAction(Request $request): Response
      * Show scoreboard
      *
      * @Route("/showScoreboard")
-     *
-     * @param Request $request
-     *
-     * @throws \LogicException
-     *
-     * @return Response
      */
     public function showScoreboardAction(Request $request): Response
     {
@@ -208,14 +211,6 @@ public function showScoreboardAction(Request $request): Response
      * Show player stats
      *
      * @Route("/playerstats/{playerId}")
-     *
-     * @param Request $request
-     * @param int     $playerId
-     *
-     * @throws \LogicException
-     * @throws \Doctrine\DBAL\DBALException
-     *
-     * @return Response
      */
     public function getPlayerStats(Request $request, int $playerId): Response
     {
@@ -242,14 +237,6 @@ public function getPlayerStats(Request $request, int $playerId): Response
         );
     }
 
-    /**
-     * @param int $playerId
-     *
-     * @throws \LogicException
-     * @throws \Doctrine\DBAL\DBALException
-     *
-     * @return array
-     */
     private function calculateStreaks(int $playerId): array
     {
         $sql1 = 'SELECT round.creation_date AS GameDate, GR.points AS Result
@@ -257,7 +244,7 @@ private function calculateStreaks(int $playerId): array
                  JOIN round ON round.id = GR.round_id
                  WHERE GR.player_id = :playerId';
 
-        $sql = $this->getEm()->getConnection()
+        $sql = $this->em->getConnection()
             ->prepare($sql1);
         $sql->bindValue('playerId', $playerId);
         $sql->execute();
@@ -351,20 +338,12 @@ private function calculateGameResult(array $formData)
         return -2;
     }
 
-    /**
-     * @param array $playerIds
-     *
-     * @throws \LogicException
-     *
-     * @return FormInterface
-     */
     private function createPointsForm(array $playerIds): FormInterface
     {
         $players = $this->getPlayers();
 
         if (empty($playerIds)) {
-            $playersForInitialFilling = \array_slice($players, 0, 4);
-            foreach ($playersForInitialFilling as $initialPlayer) {
+            foreach (\array_slice($players, 0, 4) as $initialPlayer) {
                 $playerIds[] = $initialPlayer->getId();
             }
         }
@@ -385,7 +364,7 @@ private function createPointsForm(array $playerIds): FormInterface
             $pointsForm->add('player' . $i . 'win', CheckboxType::class, ['required' => false]);
         }
 
-        $translator = $this->get('translator');
+        $translator = $this->translator;
 
         $pointsForm->add('saveAndNew', SubmitType::class, ['label' => $translator->trans('save_and_new', [], 'buttons')])
             ->add('save', SubmitType::class, ['label' => $translator->trans('save', [], 'buttons')]);
@@ -394,29 +373,11 @@ private function createPointsForm(array $playerIds): FormInterface
     }
 
     /**
-     * @throws \LogicException
-     *
-     * @return EntityManager
-     */
-    private function getEm(): EntityManager
-    {
-        if ($this->em === null) {
-            $this->em = $this->getDoctrine()->getManager();
-
-            return $this->em;
-        }
-
-        return $this->em;
-    }
-
-    /**
-     * @throws \LogicException
-     *
      * @return Player[]
      */
     private function getPlayers(): array
     {
-        $builder = $this->getEm()->createQueryBuilder()
+        $builder = $this->em->createQueryBuilder()
             ->select(['player'])
             ->from('App:Player', 'player')
             ->addOrderBy('player.points', 'DESC');
@@ -424,38 +385,24 @@ private function getPlayers(): array
         return $builder->getQuery()->getResult();
     }
 
-    /**
-     * @param int $id
-     *
-     * @throws \LogicException
-     *
-     * @return Player
-     */
     private function getPlayerById(int $id): Player
     {
-        $playerRepo = $this->getEm()->getRepository('App:Player');
+        /** @var Player $player */
+        $player = $this->em->getRepository('App:Player')->find($id);
 
-        return $playerRepo->find($id);
+        return $player;
     }
 
-    /**
-     * @param Request $request
-     *
-     * @throws \LogicException
-     *
-     * @return PaginationInterface
-     */
     private function getRounds(Request $request): PaginationInterface
     {
-        $queryBuilder = $this->getEm()->createQueryBuilder()
+        $queryBuilder = $this->em->createQueryBuilder()
             ->select(['round'])
             ->from('App:Round', 'round')
             ->addOrderBy('round.creationDate', 'DESC');
 
         $query = $queryBuilder->getQuery();
 
-        $paginator = $this->get('knp_paginator');
-        $pagination = $paginator->paginate(
+        $pagination = $this->paginator->paginate(
             $query,
             $request->query->getInt('page', 1)
         );
@@ -463,17 +410,9 @@ private function getRounds(Request $request): PaginationInterface
         return $pagination;
     }
 
-    /**
-     * @param Player  $player
-     * @param Request $request
-     *
-     * @throws \LogicException
-     *
-     * @return PaginationInterface
-     */
     private function getRoundsByPlayer(Player $player, Request $request): PaginationInterface
     {
-        $queryBuilder = $this->getEm()->createQueryBuilder()
+        $queryBuilder = $this->em->createQueryBuilder()
             ->select(['round'])
             ->from('App:Round', 'round')
             ->join('round.participants', 'participant')
@@ -483,8 +422,7 @@ private function getRoundsByPlayer(Player $player, Request $request): Pagination
 
         $query = $queryBuilder->getQuery();
 
-        $paginator = $this->get('knp_paginator');
-        $pagination = $paginator->paginate(
+        $pagination = $this->paginator->paginate(
             $query,
             $request->query->getInt('page', 1)
         );
@@ -492,14 +430,6 @@ private function getRoundsByPlayer(Player $player, Request $request): Pagination
         return $pagination;
     }
 
-    /**
-     * @param Player $player
-     *
-     * @throws \LogicException
-     * @throws \Doctrine\DBAL\DBALException
-     *
-     * @return array
-     */
     private function getPartnersOfPlayer(Player $player): array
     {
         $sql = 'SELECT partnerPlayer.name AS name, SUM(participant.points) AS points
@@ -512,15 +442,10 @@ private function getPartnersOfPlayer(Player $player): array
                 GROUP BY partner.player_id
                 ORDER BY points DESC;';
 
-        return $this->getEm()->getConnection()->executeQuery($sql, ['playerId' => $player->getId()])->fetchAll();
+        return $this->em->getConnection()->executeQuery($sql, ['playerId' => $player->getId()])->fetchAll();
     }
 
     /**
-     * @param int $playerId
-     *
-     * @throws \LogicException
-     * @throws \Doctrine\DBAL\DBALException
-     *
      * @return array|bool
      */
     private function getWinLossRatio(int $playerId)
@@ -530,7 +455,7 @@ private function getWinLossRatio(int $playerId)
                 WHERE player_id = :playerId
                 GROUP BY player_id';
 
-        $sql = $this->getEm()->getConnection()->prepare($sql);
+        $sql = $this->em->getConnection()->prepare($sql);
         $sql->bindValue('playerId', $playerId);
         $sql->execute();
 
diff --git a/src/Entity/.gitignore b/src/Entity/.gitignore
deleted file mode 100644
index e69de29..0000000
diff --git a/src/Entity/Participant.php b/src/Entity/Participant.php
index d3e4a50..82e4bd6 100644
--- a/src/Entity/Participant.php
+++ b/src/Entity/Participant.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * The MIT License (MIT)
  *
@@ -65,57 +65,51 @@ class Participant
      */
     private $points;
 
-    /**
-     * Participant constructor.
-     *
-     * @param Round  $round
-     * @param Player $player
-     * @param int    $points
-     */
-    public function __construct(Round $round, Player $player, $points)
+    public function __construct(Round $round, Player $player, int $points)
     {
         $this->round = $round;
         $this->player = $player;
         $this->points = $points;
     }
 
-    /**
-     * @return int
-     */
-    public function getId()
+    public function getId(): int
     {
         return $this->id;
     }
 
-    /**
-     * @return Round
-     */
-    public function getRound()
+    public function getRound(): Round
     {
         return $this->round;
     }
 
-    /**
-     * @return Player
-     */
-    public function getPlayer()
+    public function setRound(Round $round): Participant
+    {
+        $this->round = $round;
+
+        return $this;
+    }
+
+    public function getPlayer(): Player
     {
         return $this->player;
     }
 
-    /**
-     * @return int
-     */
-    public function getPoints()
+    public function setPlayer(Player $player): Participant
+    {
+        $this->player = $player;
+
+        return $this;
+    }
+
+    public function getPoints(): int
     {
         return $this->points;
     }
 
-    /**
-     * @param int $points
-     */
-    public function setPoints($points)
+    public function setPoints(int $points): Participant
     {
         $this->points = $points;
+
+        return $this;
     }
 }
diff --git a/src/Entity/Player.php b/src/Entity/Player.php
index b41b4df..e14306b 100644
--- a/src/Entity/Player.php
+++ b/src/Entity/Player.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * The MIT License (MIT)
  *
@@ -54,7 +54,7 @@ class Player
      * @Assert\NotBlank()
      * @Assert\Length(min="3")
      */
-    protected $name;
+    protected $name = '';
 
     /**
      * @var int
@@ -63,61 +63,32 @@ class Player
      */
     protected $points = 0;
 
-    /**
-     * Get id
-     *
-     * @return int
-     */
-    public function getId()
+    public function getId(): int
     {
         return $this->id;
     }
 
-    /**
-     * Set name
-     *
-     * @param string $name
-     *
-     * @return Player
-     */
-    public function setName($name)
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function setName(string $name): Player
     {
         $this->name = $name;
 
         return $this;
     }
 
-    /**
-     * Get name
-     *
-     * @return string
-     */
-    public function getName()
+    public function getPoints(): int
     {
-        return $this->name;
+        return $this->points;
     }
 
-    /**
-     * Set points
-     *
-     * @param int $points
-     *
-     * @return Player
-     */
-    public function setPoints($points)
+    public function setPoints(int $points): Player
     {
         $this->points = $points;
 
         return $this;
     }
-
-    /**
-     * Get points
-     *
-     * @return int
-     */
-    public function getPoints()
-    {
-        return $this->points;
-    }
 }
diff --git a/src/Entity/Round.php b/src/Entity/Round.php
index 74f9dd1..10f9cd7 100644
--- a/src/Entity/Round.php
+++ b/src/Entity/Round.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * The MIT License (MIT)
  *
@@ -71,13 +71,7 @@ class Round
      */
     private $participants;
 
-    /**
-     * Round constructor.
-     *
-     * @param int  $points
-     * @param bool $isBock
-     */
-    public function __construct($points, $isBock)
+    public function __construct(int $points, bool $isBock)
     {
         $this->creationDate = new DateTime();
         $this->points = $points;
@@ -85,75 +79,62 @@ public function __construct($points, $isBock)
         $this->participants = new ArrayCollection();
     }
 
-    /**
-     * @return int
-     */
-    public function getId()
+    public function getId(): int
     {
         return $this->id;
     }
 
-    /**
-     * @return DateTime
-     */
-    public function getCreationDate()
+    public function getCreationDate(): DateTime
     {
         return $this->creationDate;
     }
 
-    /**
-     * @return int
-     */
-    public function getPoints()
+    public function setCreationDate(DateTime $creationDate): Round
     {
-        return $this->points;
+        $this->creationDate = $creationDate;
+
+        return $this;
     }
 
-    /**
-     * @return bool
-     */
-    public function isBock()
+    public function getPoints(): int
     {
-        return $this->bock;
+        return $this->points;
     }
 
-    /**
-     * @return ArrayCollection|Participant[]
-     */
-    public function getParticipants()
+    public function setPoints(int $points): Round
     {
-        return $this->participants;
+        $this->points = $points;
+
+        return $this;
     }
 
-    /**
-     * @param ArrayCollection $participants
-     */
-    public function setParticipants($participants)
+    public function getBock(): bool
     {
-        $this->participants = $participants;
+        return $this->bock;
     }
 
-    /**
-     * @param DateTime $creationDate
-     */
-    public function setCreationDate(DateTime $creationDate)
+    public function setBock(bool $bock): Round
     {
-        $this->creationDate = $creationDate;
+        $this->bock = $bock;
+
+        return $this;
     }
 
     /**
-     * @param int $points
+     * @return Participant[]|ArrayCollection
      */
-    public function setPoints($points)
+    public function getParticipants()
     {
-        $this->points = $points;
+        return $this->participants;
     }
 
     /**
-     * @param bool $bock
+     * @param Participant[]|ArrayCollection $participants
      */
-    public function setBock($bock)
+    public function setParticipants(ArrayCollection $participants): Round
     {
-        $this->bock = $bock;
+        $this->participants = $participants;
+
+        return $this;
     }
 }
diff --git a/src/Kernel.php b/src/Kernel.php
index 589d538..899512a 100644
--- a/src/Kernel.php
+++ b/src/Kernel.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * The MIT License (MIT)
  *
@@ -35,7 +35,7 @@ class Kernel extends BaseKernel
 {
     use MicroKernelTrait;
 
-    const CONFIG_EXTS = '.{php,xml,yaml,yml}';
+    public const CONFIG_EXTS = '.{php,xml,yaml,yml}';
 
     public function getCacheDir()
     {
@@ -57,7 +57,7 @@ public function registerBundles()
         }
     }
 
-    protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader)
+    protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader): void
     {
         $container->setParameter('container.autowiring.strict_mode', true);
         $container->setParameter('container.dumper.inline_class_loader', true);
@@ -70,7 +70,7 @@ protected function configureContainer(ContainerBuilder $container, LoaderInterfa
         $loader->load($confDir . '/services_' . $this->environment . self::CONFIG_EXTS, 'glob');
     }
 
-    protected function configureRoutes(RouteCollectionBuilder $routes)
+    protected function configureRoutes(RouteCollectionBuilder $routes): void
     {
         $confDir = $this->getProjectDir() . '/config';
         if (is_dir($confDir . '/routes/')) {
diff --git a/src/Migrations/.gitignore b/src/Migrations/.gitignore
deleted file mode 100644
index e69de29..0000000
diff --git a/src/Repository/.gitignore b/src/Repository/.gitignore
deleted file mode 100644
index e69de29..0000000