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Viewing changes to lib/lp/app/browser/root.py

  • Committer: Ian Booth
  • Date: 2011-07-13 00:57:59 UTC
  • mfrom: (13405 devel)
  • mto: This revision was merged to the branch mainline in revision 13409.
  • Revision ID: ian.booth@canonical.com-20110713005759-1xu907dd46bk8dqh
Merge from trunk

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lib/lp/app/browser/root.py
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import time
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import feedparser
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from lazr.batchnavigator import ListRangeFactory
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from lazr.batchnavigator.z3batching import batch
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from zope.component import getUtility
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from zope.interface import Interface
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class GoogleBatchNavigator(BatchNavigator):
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    """A batch navigator with a fixed size of 20 items per batch."""
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    _batch_factory = WindowedListBatch
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    # Searches generally don't show the 'Last' link when there is a
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    # good chance of getting over 100,000 results.
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    show_last_link = False
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    singular_heading = 'page'
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    plural_heading = 'pages'
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    def __init__(self, results, request, start=0, size=20, callback=None,
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                 transient_parameters=None, force_start=False,
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                 range_factory=None):
 
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    def __init__(self, results, request, start=0, size=20, callback=None):
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        """See `BatchNavigator`.
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        :param results: A `PageMatches` object that contains the matching
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        :param size: The batch size is fixed to 20, The param is not used.
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        :param callback: Not used.
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        """
 
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        # We do not want to call super() because it will use the batch
 
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        # size from the URL.
 
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        # pylint: disable-msg=W0231
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        results = WindowedList(results, start, results.total)
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        super(GoogleBatchNavigator, self).__init__(results, request,
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            start=start, size=size, callback=callback,
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            transient_parameters=transient_parameters, force_start=force_start,
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            range_factory=range_factory)
 
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        self.request = request
 
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        request_start = request.get(self.start_variable_name, None)
 
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        if request_start is None:
 
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            self.start = start
 
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        else:
 
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            try:
 
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                self.start = int(request_start)
 
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            except (ValueError, TypeError):
 
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                self.start = start
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    def determineSize(self, size, batch_params_source):
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        # Force the default and users requested sizes to 20.
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        self.default_size = 20
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        return 20
 
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        self.transient_parameters = [self.start_variable_name]
 
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        self.batch = WindowedListBatch(
 
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            results, start=self.start, size=self.default_size)
 
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        self.setHeadings(
 
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            self.default_singular_heading, self.default_plural_heading)