Add database creation script

Code/Pipfile

@@ -7,8 +7,8 @@ verify_ssl = true
 
 [packages]
 flask = "*"
-sqlalchemy = "*"
 pymysql = "*"
+flask-sqlalchemy = "*"
 
 [requires]
 python_version = "3.8"

Code/Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "536bc13b89021a4575fe2c14d71636abf965ab896871f1503f3186f2f1c6a0d4"
+            "sha256": "77464f98cb5a9b5d12663323acdbbc44b448b5d9d2fee7c8e0e6302987ef8bfe"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -31,6 +31,14 @@
             "index": "pypi",
             "version": "==1.1.1"
         },
+        "flask-sqlalchemy": {
+            "hashes": [
+                "sha256:0078d8663330dc05a74bc72b3b6ddc441b9a744e2f56fe60af1a5bfc81334327",
+                "sha256:6974785d913666587949f7c2946f7001e4fa2cb2d19f4e69ead02e4b8f50b33d"
+            ],
+            "index": "pypi",
+            "version": "==2.4.1"
+        },
         "itsdangerous": {
             "hashes": [
                 "sha256:321b033d07f2a4136d3ec762eac9f16a10ccd60f53c0c91af90217ace7ba1f19",
@@ -90,7 +98,6 @@
             "hashes": [
                 "sha256:bfb8f464a5000b567ac1d350b9090cf081180ec1ab4aa87e7bca12dab25320ec"
             ],
-            "index": "pypi",
             "version": "==1.3.12"
         },
         "werkzeug": {

Code/database/db_setup.py

@@ -1,3 +1,5 @@
+from os import environ
+
 from sqlalchemy import create_engine
 
 
@@ -9,12 +11,15 @@ def create_connection():
     db_connection_uri = "mysql+pymysql://{user}:{pw}@{url}/{db}".format(
         user=db_user, pw=db_password, url=db_url, db=db_name
     )
-    engine = sqlalchemy.create_engine(db_connection_uri, echo=True)
+    engine = create_engine(db_connection_uri, echo=True)
+
+
+def create_tables():
 
 
 def get_env_variable(name):
     try:
-        return os.environ[name]
+        return environ[name]
     except KeyError:
         message = "Expected environment variable '{}' not set.".format(name)
         raise Exception(message)

Code/database/mariadb_setup.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+EXPECTED_ARGS=3
+ERROR=1
+MYSQL=$(command -v which)
+
+if [ $# -ne $EXPECTED_ARGS ]
+then
+  echo "Usage: $0 <database name> <database user> <database password>"
+  exit $ERROR
+fi
+  
+Q1="CREATE DATABASE IF NOT EXISTS $1;"
+Q2="GRANT USAGE ON *.* TO $2@localhost IDENTIFIED BY '$3';"
+Q3="GRANT ALL PRIVILEGES ON $1.* TO $2@localhost;"
+Q4="FLUSH PRIVILEGES;"
+SQL="${Q1}${Q2}${Q3}${Q4}"
+  
+$MYSQL -uroot -p -e "$SQL"

Design.org

@@ -46,9 +46,10 @@ CLOSED: [2019-11-01 Fri 00:34]
 - [X] Entity-Relationship
 ** Implementation
 *** TODO Backend [0/2] [0%]
-**** TODO Database [1/2] [50%]
+**** TODO Database [2/3] [66%]
 - [X] Connection
-- [ ] Creation of fields via class
+- [X] Creation from script
+- [ ] Creation of tables via class
 **** NEXT Flask framework
 -[[https://flask.palletsprojects.com/en/1.1.x/patterns/#patterns][ Patterns]]
 *** NEXT Parsing script [0/2] [0%]