[Zope-Checkins] CVS: Zope2 - util.py:1.1.2.1

[andreas@serenade.digicool.com]

Update of /cvs-repository/Zope2/lib/python/Products/PluginIndexes/common
In directory serenade:/tmp/cvs-serv18556

Added Files:
      Tag: ajung-dropin-registry
	util.py 
Log Message:
1st version



--- Added File util.py in package Zope2 ---
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__version__ = '$Id: util.py,v 1.1.2.1 2001/05/22 13:19:21 andreas Exp $'

import re
from types import StringType,ListType

class parseIndexRequest:

    ParserException = 'IndexRequestParseError'

    def __init__(self,request,iid): 
        """ parse a request  from the ZPublisher and return a uniform
        datastructure back to the _apply_index() method of the index

          request -- the request dictionary send from the ZPublisher
          iid     -- Id of index
        """

        self.id         = iid
        self.usage      = None
        self.keys       = []
        self.operator   = None

        if not request.has_key(iid): return

        if request.has_key(iid+'_usage'):
            self.usage = request[iid+'_usage']

        if request.has_key(iid+'_operator'):
            self.operator = request[iid+'_operator']

        keys = request[iid]

        if type(keys)==StringType:
            """ single query """
            self.keys = [keys]

        elif type(keys)==ListType:
            """ list of queries """
            self.keys  = keys

        else:
            """ query is of type record """
            record = keys

            if hasattr(record,'query'):           
                keys = record.query
            else:
                raise self.ParserException,"record for '%s' *must* contain a 'query' attribute" % self.id
        
            
            if type(keys)== StringType:
                self.keys = [keys]
            elif type(keys) == ListType:
                self.keys = keys

            for k in dir(record):
                if not k in ['query','operator']: 
                    setattr(self,k,getattr(record,k))

 
            print dir(record)