import sqlite3
import hashlib

class db:
    def __init__():
        pass
        def create_user( self, name, pin, permission ):
            conn = sqlite3.connect(self.db_name)
            c  = conn.cursor()

            c.execute( "SELECT * FROM user WHERE name LIKE (?)", (name) )
            result = c.fetchall()

            if len(result) == 0:
                pin = hashlib.md5( pin )
                c.execute( "INSERT INTO user ( name, pin, permission ) VALUES ( ?, ? )", ( name, pin.hexdigest(), permission ) )

                conn.commit()
                c.close()
                return True

            else:
                conn.commit()
                c.close()
                return False