nextid

provide increasing counters

class fbf.lib.nextid.Nextid(fname)

Bases: builtins.object

counters by name

get(item)

get counter for item

next(item)

get increment of item counter

nextlist(item, nr)

get increment of item counter

save()

set(item, number)

set counter of item to number

CODE

# fbf/lib/nextid.py
#
#

""" provide increasing counters """

basic imports

import os

Nextid class

class Nextid(object):

    """ counters by name """

    def __init__(self, fname):
        self.data = {}

    def get(self, item):
        """ get counter for item """
        item = item.lower()
        try:
            result = self.data[item]
        except KeyError:
            return None
        return result

    def set(self, item, number):
        """ set counter of item to number """
        item = item.lower()
        try:
            self.data[item] = int(number)
        except ValueError:
            return 0
        self.save()
        return 1

    def next(self, item):
        """ get increment of item counter """
        item = item.lower()
        try:
            self.data[item] += 1
        except KeyError:
            self.data[item] = 1
        self.save()
        return self.data[item]

    def nextlist(self, item, nr):
        """ get increment of item counter """
        item = item.lower()
        try:
            start = self.data[item] + 1
        except KeyError:
            start = 1
        stop = start + nr
        l = list(range(start, stop))
        self.data[item] = stop - 1
        self.save()
        return l

    def save(self):
        pass

nextid = Nextid('notused')