Updated README with PSQL instructions, bumped tensorflow version

Author: marcogdepinto

README.md

@@ -41,6 +41,47 @@ There is a short demo of the first version on YouTube: https://youtu.be/86HhxTRL
 
 # Developers stuff
 
+**DB creation**
+
+You need PostgreSQL installed on your machine. To facilitate the configurations and if you are not familiar with PostgreSQL commands, I suggest to use a Db manager with UI: in my case, I use [pgAdmin](https://www.pgadmin.org/). 
+
+After the installation of PostgreSQL, use pgAdmin to create a ```django-emotion-classification``` database and a ```App_filemodel``` table.
+
+The ```App_filemodel``` table can be created with the following script:
+
+```
+CREATE DATABASE django-emotion-classification;
+
+CREATE USER marco WITH PASSWORD 'test';
+
+CREATE TABLE App_filemodel (
+   id INT PRIMARY KEY NOT NULL,
+   file TEXT NOT NULL,
+   timestamp DATE NOT NULL,
+   path TEXT NOT NULL
+);
+
+GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA django-emotion-classification TO marco;
+
+ALTER USER marco CREATEDB; -- This is to run the automatic tests, otherwise you will get an "unable to create database" error when running python manage.py test
+
+```
+
+Please note the above script is made with the data available in my settings.py, but you can change it according to your needs.
+```
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        'NAME': 'django-emotion-classification',
+        'USER': 'marco',
+        'PASSWORD': 'test',
+        'HOST': 'localhost',
+        'PORT': '',
+        'OPTIONS': {'sslmode': 'disable'},
+    }
+}
+```
+
 **How to start the server and try it**
 
 1) ```git clone https://github.com/marcogdepinto/Django-Emotion-Classification-Ravdess-API.git```

requirements.txt

@@ -11,7 +11,7 @@ numba==0.49.0
 numpy==1.16.0
 pandas==1.0.3
 pytest==5.4.1
-tensorflow==1.14.0
+tensorflow==1.15.2
 psycopg2==2.8.4
 requests==2.23.0
 setuptools==46.1.3