.. _fbf.lib.nextid:

nextid
~~~~~~

.. automodule:: fbf.lib.nextid
        :show-inheritance:
        :members:
        :undoc-members:

CODE
----

    ::

        # fbf/lib/nextid.py
        #
        #
        
        """ provide increasing counters """
        
.. _fbf.lib.nextid_basic_imports:

basic imports
----------------

    ::

        
        import os
        
.. _fbf.lib.nextid_Nextid_class:

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')