I'm working in a project with php and mysql database. and I want that with odoo I can add or update data

An exemple :

-When I add a project in odoo this project will addded in my own project.

I try this code 

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def connexion ():
    db = mysql.connect(host = "localhost",
    user = "root",
    passwd = "",
    database = "test",
    port =int(3306)
    )
    return db

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when I call this function here (when I add a project in odoo )

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@api.model
def create(self, vals):
    db =connexion()
    return super(ProjectProject, self).create(vals) 

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odoo show me this error 

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raise exception.with_traceback(None) from new_cause
mysql.connector.errors.InterfaceError: 2003: Can't connect to MySQL server on 'http://127.0.0.1:3306' (-2 Name or service not known)

can someone help me here with exemples