mailinglists.py

# ------------------------------------------------------------------------------
# Copyright (c) 2010-2013, EVEthing team
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
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#     Redistributions of source code must retain the above copyright notice, this
#       list of conditions and the following disclaimer.
#     Redistributions in binary form must reproduce the above copyright notice,
#       this list of conditions and the following disclaimer in the documentation
#       and/or other materials provided with the distribution.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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# OF SUCH DAMAGE.
# ------------------------------------------------------------------------------

from .apitask import APITask

from thing.models.mailinglist import MailingList

# ---------------------------------------------------------------------------

class MailingLists(APITask):
    name = 'thing.mailing_lists'

    def run(self, url, taskstate_id, apikey_id, character_id):
        if self.init(taskstate_id, apikey_id) is False:
            return

        # Fetch the API data
        params = { 'characterID': character_id }
        if self.fetch_api(url, params) is False or self.root is None:
            return

        # Collect mailing lists from XML
        lists = {}
        for row in self.root.findall('result/rowset/row'):
            lists[int(row.attrib['listID'])] = row.attrib['displayName']

        # Bulk fetch mailing lists from database
        list_map = MailingList.objects.in_bulk(lists.keys())

        # Add/update mailing lists
        new = []
        for listID, displayName in lists.items():
            ml = list_map.get(listID)
            # MailingList does not exist
            if ml is None:
                new.append(MailingList(
                    id=listID,
                    name=displayName,
                ))
            # MailingList has changed, update
            elif ml.name != displayName:
                ml.name = displayName
                ml.save(update_fields=('name',))

        # Create any new MailingLIst objects
        if new:
            MailingList.objects.bulk_create(new)

        return True

# ---------------------------------------------------------------------------