Fix #6 - Provide ability to connect to db on non-default port (#7)

* Fix #6 - Provide ability to connect to db on non-default port

credentials.json

@@ -2,5 +2,6 @@
     "host": "",
     "user": "",
     "password": "",
-    "database": ""
+    "database": "",
+    "port": 3306
 }

dbConnect/__init__.py

@@ -8,4 +8,4 @@
 __license__ = "MPL 2.0"
 __doc__ = """MySQL for Humans"""
 
-from .dbconnect import DBConnect
+from .dbConnect import DBConnect

dbConnect/dbConnect.py

@@ -18,9 +18,9 @@ def _check_settings(self):
         Check configuration file
         :return: True if all settings are correct
         """
-        keys = ['host', 'user', 'password', 'database']
+        keys = ['host', 'user', 'password', 'database', 'port']
         if not all(key in self.settings.keys() for key in keys):
-            raise ValueError('Please check credentials file for correct keys: host, user, password, database')
+            raise ValueError('Please check credentials file for correct keys: host, user, password, database, port')
 
     def connect(self):
         """
@@ -33,7 +33,8 @@ def connect(self):
                 password=self.settings['password'],
                 host=self.settings['host'],
                 database=self.settings['database'],
-                charset='utf8')
+                charset='utf8',
+                port=self.settings['port'])
         except mysql.connector.Error as err:
             if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
                 raise ValueError("Wrong credentials, ACCESS DENIED")
@@ -43,14 +44,16 @@ def connect(self):
                 raise ValueError(err)
         self.cursor = self.connection.cursor()
 
-    def __init__(self, credentials_file='credentials.json', host=None, user=None, password=None, database=None):
+    def __init__(self, credentials_file='credentials.json', host=None, user=None, password=None, database=None, port=3306):
         """
         Initialise object with credentials file provided
         """
         if host and user and password and database:
-            self.settings = {"host": host, "user": user, "password": password, "database": database}
+            self.settings = {"host": host, "user": user, "password": password, "database": database, "port": port}
         else:
             self.settings = json.load(open(credentials_file, 'r'))
+            if 'port' not in self.settings:
+                self.settings['port'] = port
         self._check_settings(self)
         self.connection = None
         self.cursor = None