from Globals import InitializeClass
from AccessControl import ClassSecurityInfo

def createMultiColumnList(self,slist, numCols, sort_on='title_or_id'):
    try:
        mcl = self.createMultiColumnList(slist, numCols, sort_on=sort_on)
        return mcl
    except AttributeError:
        return [slist]

class SortedDict(dict):
    """ A sorted dictionary.
    """
    security = ClassSecurityInfo()

    security.declarePublic('items')
    def items(self):
        primary_metatags = self.pmt
        lst = [(name,self[name]) for name in primary_metatags                    \
                                                 if name in self.keys()] +       \
              [(name, self[name]) for name in self.keys()                        \
                                                 if name not in primary_metatags]
        return lst


    security.declarePublic('__init__')
    def __init__(self, *args, **kwargs):
        super(SortedDict,self).__init__(*args, **kwargs)
        self.pmt = []


    security.declarePublic('__setitem__')
    def __setitem__(self, i, y):
        super(SortedDict,self).__setitem__(i, y)
        if i not in self.pmt:
            self.pmt.append(i)

    security.declarePublic('pop')
    def pop(self, k, *args, **kwargs):
        super(SortedDict,self).pop(k, *args, **kwargs)
        if k in self.pmt:
            self.pmt.remove(k)

try:
    InitializeClass(SortedDict)
except:
    pass