38 lines
1.2 KiB
Markdown
38 lines
1.2 KiB
Markdown
## General node file.
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The general node file includes the database connecting and a node connection class.
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This is done so the files don't go back and forth with the db connection, this otherwise would have caused problems.
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```py
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#Importing a database library to connect to the database.
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import mysql.connector
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def dbLogin():
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mydb = mysql.connector.connect(
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host="localhost",
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user="root",
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password="**********",
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database="NodeData"
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)
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return mydb
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```
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The "__init__"function is called.
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(In javascript this is known as the "constructor".
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For further information visit https://www.w3schools.com/python/gloss_python_class_init.asp)
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```py
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# A general class which acts as a database connector and a node identifyer
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class Node():
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def __init__(self, macAdress):
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self.macAdress = macAdress
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self.id = None
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def getNodeId(self):
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id = (self.macAdress,)
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mydb = dbLogin()
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cursor = mydb.cursor()
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cursor.execute("""SELECT nodeID FROM Node WHERE MAC = %s""", id)
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data = cursor.fetchall()
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#Again go along all tuple items. and asign them to the ID
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for tuples in data:
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for item in tuples:
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self.id = item
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``` |