Python functions.positive_value_exists函数代码示例

    def retrieve_address(self, voter_address_id, voter_id=0, address_type=''):
        error_result = False
        exception_does_not_exist = False
        exception_multiple_object_returned = False
        voter_address_on_stage = VoterAddress()
        voter_address_has_value = False

        if not positive_value_exists(address_type):
            # Provide a default
            address_type = BALLOT_ADDRESS

        try:
            if positive_value_exists(voter_address_id):
                voter_address_on_stage = VoterAddress.objects.get(id=voter_address_id)
                voter_address_id = voter_address_on_stage.id
                voter_address_found = True
                status = "VOTER_ADDRESS_FOUND_BY_ID"
                success = True
                voter_address_has_value = True if positive_value_exists(voter_address_on_stage.text_for_map_search) \
                    else False
            elif positive_value_exists(voter_id) and address_type in (BALLOT_ADDRESS, MAILING_ADDRESS,
                                                                      FORMER_BALLOT_ADDRESS):
                voter_address_on_stage = VoterAddress.objects.get(voter_id=voter_id, address_type=address_type)
                # If still here, we found an existing address
                voter_address_id = voter_address_on_stage.id
                voter_address_found = True
                status = "VOTER_ADDRESS_FOUND_BY_VOTER_ID_AND_ADDRESS_TYPE"
                success = True
                voter_address_has_value = True if positive_value_exists(voter_address_on_stage.text_for_map_search) \
                    else False
            else:
                voter_address_found = False
                status = "VOTER_ADDRESS_NOT_FOUND-MISSING_REQUIRED_VARIABLES"
                success = False
        except VoterAddress.MultipleObjectsReturned as e:
            handle_record_found_more_than_one_exception(e, logger=logger)
            error_result = True
            status = "VOTER_ADDRESS_MULTIPLE_OBJECTS_RETURNED"
            exception_multiple_object_returned = True
            success = False
            voter_address_found = False
        except VoterAddress.DoesNotExist:
            error_result = True
            status = "VOTER_ADDRESS_DOES_NOT_EXIST"
            exception_does_not_exist = True
            success = True
            voter_address_found = False

        results = {
            'success':                  success,
            'status':                   status,
            'error_result':             error_result,
            'DoesNotExist':             exception_does_not_exist,
            'MultipleObjectsReturned':  exception_multiple_object_returned,
            'voter_address_found':      voter_address_found,
            'voter_address_has_value':  voter_address_has_value,
            'voter_address_id':         voter_address_id,
            'voter_address':            voter_address_on_stage,
        }
        return results

    def save_new_voter_device_link(self, voter_device_id, voter_id):
        error_result = False
        exception_record_not_saved = False
        missing_required_variables = False
        voter_device_link_on_stage = VoterDeviceLink()
        voter_device_link_id = 0

        try:
            if positive_value_exists(voter_device_id) and positive_value_exists(voter_id):
                voter_device_link_on_stage.voter_device_id = voter_device_id
                voter_device_link_on_stage.voter_id = voter_id
                voter_device_link_on_stage.save()

                voter_device_link_id = voter_device_link_on_stage.id
            else:
                missing_required_variables = True
                voter_device_link_id = 0
        except Exception as e:
            handle_record_not_saved_exception(e, logger=logger)
            error_result = True
            exception_record_not_saved = True

        results = {
            'error_result':                 error_result,
            'missing_required_variables':   missing_required_variables,
            'RecordNotSaved':               exception_record_not_saved,
            'voter_device_link_created':    True if voter_device_link_id > 0 else False,
            'voter_device_link':            voter_device_link_on_stage,
        }
        return results

def positions_public_count_for_contest_measure(measure_id, measure_we_vote_id, stance_we_are_looking_for):
    """
    We want to return a JSON file with the number of orgs and public figures who support
    this particular measure
    """
    # This implementation is built to make only two database calls. All other calculations are done here in the
    #  application layer

    position_list_manager = PositionListManager()
    all_positions_count_for_contest_measure = \
        position_list_manager.retrieve_public_positions_count_for_contest_measure(
            measure_id, measure_we_vote_id, stance_we_are_looking_for)

    if positive_value_exists(measure_id) or positive_value_exists(measure_we_vote_id):
        contest_measure_manager = ContestMeasureManager()
        # Since we can take in either measure_id or measure_we_vote_id, we need to retrieve the value we don't have
        if positive_value_exists(measure_id):
            measure_we_vote_id = contest_measure_manager.fetch_contest_measure_we_vote_id_from_id(measure_id)
        elif positive_value_exists(measure_we_vote_id):
            measure_id = contest_measure_manager.fetch_contest_measure_id_from_we_vote_id(measure_we_vote_id)

    json_data = {
        'status':                   'SUCCESSFUL_RETRIEVE_OF_PUBLIC_POSITION_COUNT_FOR_CONTEST_MEASURE',
        'success':                  True,
        'count':                    all_positions_count_for_contest_measure,
        'ballot_item_id':           convert_to_int(measure_id),
        'ballot_item_we_vote_id':   measure_we_vote_id,
        'kind_of_ballot_item':      MEASURE,
    }
    results = {
        'json_data': json_data,
    }
    return results

    def retrieve_daily_summaries(self, kind_of_action="", google_civic_election_id=0):
        # Start with today and cycle backwards in time
        daily_summaries = []
        day_on_stage = date.today()  # TODO: We need to work out the timezone questions
        number_found = 0
        maximum_attempts = 30
        attempt_count = 0

        try:
            # Limit the number of times this runs to EITHER 1) 5 positive numbers
            #  OR 2) 30 days in the past, whichever comes first
            while number_found <= 5 and attempt_count <= maximum_attempts:
                attempt_count += 1
                counter_queryset = GoogleCivicApiCounter.objects.all()
                if positive_value_exists(kind_of_action):
                    counter_queryset = counter_queryset.filter(kind_of_action=kind_of_action)
                if positive_value_exists(google_civic_election_id):
                    counter_queryset = counter_queryset.filter(google_civic_election_id=google_civic_election_id)

                # Find the number of these entries on that particular day
                counter_queryset = counter_queryset.filter(datetime_of_action__contains=day_on_stage)
                api_call_count = len(counter_queryset)

                # If any api calls were found on that date, pass it out for display
                if positive_value_exists(api_call_count):
                    daily_summary = {"date_string": day_on_stage, "count": api_call_count}
                    daily_summaries.append(daily_summary)
                    number_found += 1

                day_on_stage -= timedelta(days=1)
        except Exception:
            pass

        return daily_summaries

def refresh_existing_voter_guides_view(request):
    authority_required = {'verified_volunteer'}  # admin, verified_volunteer
    if not voter_has_authority(request, authority_required):
        return redirect_to_sign_in_page(request, authority_required)

    voter_guide_updated_count = 0

    # Cycle through existing voter_guides
    voter_guide_list_manager = VoterGuideListManager()
    voter_guide_manager = VoterGuideManager()
    results = voter_guide_list_manager.retrieve_all_voter_guides()
    if results['voter_guide_list_found']:
        voter_guide_list = results['voter_guide_list']
        for voter_guide in voter_guide_list:
            if positive_value_exists(voter_guide.organization_we_vote_id):
                if positive_value_exists(voter_guide.google_civic_election_id):
                    results = voter_guide_manager.update_or_create_organization_voter_guide_by_election_id(
                        voter_guide.organization_we_vote_id, voter_guide.google_civic_election_id)
                    if results['success']:
                        voter_guide_updated_count += 1
                elif positive_value_exists(voter_guide.vote_smart_time_span):
                    results = voter_guide_manager.update_or_create_organization_voter_guide_by_time_span(
                        voter_guide.organization_we_vote_id, voter_guide.vote_smart_time_span)
                    if results['success']:
                        voter_guide_updated_count += 1

    messages.add_message(request, messages.INFO,
                         '{voter_guide_updated_count} updated.'.format(
                             voter_guide_updated_count=voter_guide_updated_count,
                         ))
    return HttpResponseRedirect(reverse('voter_guide:voter_guide_list', args=()))

def candidate_politician_match_view(request):
    authority_required = {'verified_volunteer'}  # admin, verified_volunteer
    if not voter_has_authority(request, authority_required):
        return redirect_to_sign_in_page(request, authority_required)

    candidate_id = request.GET.get('candidate_id', 0)
    candidate_id = convert_to_int(candidate_id)
    # google_civic_election_id is included for interface usability reasons and isn't used in the processing
    google_civic_election_id = request.GET.get('google_civic_election_id', 0)
    google_civic_election_id = convert_to_int(google_civic_election_id)

    if not positive_value_exists(candidate_id):
        messages.add_message(request, messages.ERROR, "The candidate_id variable was not passed in.")
        return HttpResponseRedirect(reverse('candidate:candidate_edit', args=(candidate_id,)))

    candidate_campaign_manager = CandidateCampaignManager()

    results = candidate_campaign_manager.retrieve_candidate_campaign_from_id(candidate_id)
    if not positive_value_exists(results['candidate_campaign_found']):
        messages.add_message(request, messages.ERROR,
                             "Candidate '{candidate_id}' not found.".format(candidate_id=candidate_id))
        return HttpResponseRedirect(reverse('candidate:candidate_edit', args=(candidate_id,)))

    we_vote_candidate = results['candidate_campaign']

    # Make sure we have a politician for this candidate. If we don't, create a politician entry, and save the
    # politician_we_vote_id in the candidate
    results = candidate_politician_match(we_vote_candidate)

    display_messages = True
    if results['status'] and display_messages:
        messages.add_message(request, messages.INFO, results['status'])
    return HttpResponseRedirect(reverse('candidate:candidate_edit', args=(candidate_id,)) +
                                "?google_civic_election_id=" + str(google_civic_election_id))

    def toggle_off_voter_position_like(self, position_like_id, voter_id, position_entered_id):
        if positive_value_exists(position_like_id):
            try:
                PositionLike.objects.filter(id=position_like_id).delete()
                status = "DELETED_BY_POSITION_LIKE_ID"
                success = True
            except Exception as e:
                status = "UNABLE_TO_DELETE_BY_POSITION_LIKE_ID: {error}".format(
                    error=e
                )
                success = False
        elif positive_value_exists(voter_id) and positive_value_exists(position_entered_id):
            try:
                PositionLike.objects.filter(voter_id=voter_id, position_entered_id=position_entered_id).delete()
                status = "DELETED_BY_VOTER_ID_AND_POSITION_ENTERED_ID"
                success = True
            except Exception as e:
                status = "UNABLE_TO_DELETE_BY_VOTER_ID_AND_POSITION_ENTERED_ID: {error}".format(
                    error=e
                )
                success = False
        else:
            status = "UNABLE_TO_DELETE_NO_VARIABLES"
            success = False

        results = {
            'status':   status,
            'success':  success,
        }
        return results

    def save_twitter_user_values(self, voter, twitter_user_object):
        try:
            # 'id': 132728535,
            if positive_value_exists(twitter_user_object.id):
                voter.twitter_id = twitter_user_object.id
            # 'id_str': '132728535',
            # 'utc_offset': 32400,
            # 'description': "Cars, Musics, Games, Electronics, toys, food, etc... I'm just a typical boy!",
            # 'profile_image_url': 'http://a1.twimg.com/profile_images/1213351752/_2_2__normal.jpg',
            if positive_value_exists(twitter_user_object.profile_image_url_https):
                voter.twitter_profile_image_url_https = twitter_user_object.profile_image_url_https
            # 'profile_background_image_url': 'http://a2.twimg.com/a/1294785484/images/themes/theme15/bg.png',
            # 'screen_name': 'jaeeeee',
            if positive_value_exists(twitter_user_object.screen_name):
                voter.twitter_screen_name = twitter_user_object.screen_name
            # 'lang': 'en',
            # 'name': 'Jae Jung Chung',
            # 'url': 'http://www.carbonize.co.kr',
            # 'time_zone': 'Seoul',
            voter.save()
            success = True
            status = "SAVED_VOTER_TWITTER_VALUES"
        except Exception as e:
            status = "UNABLE_TO_SAVE_VOTER_TWITTER_VALUES"
            success = False
            handle_record_not_saved_exception(e, logger=logger, exception_message_optional=status)

        results = {
            'status':   status,
            'success':  success,
            'voter':    voter,
        }
        return results

def voter_ballot_items_retrieve_view(request):
    """
    (voterBallotItemsRetrieve) Request a skeleton of ballot data for this voter location,
    so that the web_app has all of the ids it needs to make more requests for data about each ballot item.
    :param request:
    :return:
    """
    voter_device_id = get_voter_device_id(request)  # We look in the cookies for voter_device_id
    # If passed in, we want to look at
    google_civic_election_id = request.GET.get('google_civic_election_id', 0)
    use_test_election = request.GET.get('use_test_election', False)
    use_test_election = False if use_test_election == 'false' else use_test_election
    use_test_election = False if use_test_election == 'False' else use_test_election

    if positive_value_exists(use_test_election):
        google_civic_election_id = 2000  # The Google Civic API Test election
    elif not positive_value_exists(google_civic_election_id):
        # We look in the cookies for google_civic_election_id
        google_civic_election_id = get_google_civic_election_id_from_cookie(request)

    # This 'voter_ballot_items_retrieve_for_api' lives in apis_v1/controllers.py
    results = voter_ballot_items_retrieve_for_api(voter_device_id, google_civic_election_id)
    response = HttpResponse(json.dumps(results['json_data']), content_type='application/json')

    # Save google_civic_election_id in the cookie so the interface knows
    google_civic_election_id_from_ballot_retrieve = results['google_civic_election_id']
    if positive_value_exists(google_civic_election_id_from_ballot_retrieve):
        set_google_civic_election_id_cookie(request, response, results['google_civic_election_id'])

    return response

    def update_voter_guide_social_media_statistics(self, organization):
        """
        Update voter_guide entry with details retrieved from Twitter, Facebook, or ???
        """
        success = False
        status = "ENTERING_UPDATE_VOTER_GUIDE_SOCIAL_MEDIA_STATISTICS"
        values_changed = False
        voter_guide = VoterGuide()

        if organization:
            if positive_value_exists(organization.twitter_followers_count):
                results = self.retrieve_most_recent_voter_guide_for_org(organization_we_vote_id=organization.we_vote_id)

                if results['voter_guide_found']:
                    voter_guide = results['voter_guide']
                    if positive_value_exists(voter_guide.id):
                        if voter_guide.twitter_followers_count != organization.twitter_followers_count:
                            voter_guide.twitter_followers_count = organization.twitter_followers_count
                            values_changed = True

            if positive_value_exists(values_changed):
                voter_guide.save()
                success = True
                status = "SAVED_ORG_TWITTER_DETAILS"
            else:
                success = True
                status = "NO_CHANGES_SAVED_TO_ORG_TWITTER_DETAILS"

        results = {
            'success':                  success,
            'status':                   status,
            'organization':             organization,
            'voter_guide':              voter_guide,
        }
        return results

    def retrieve_ballot_item_for_voter(self, voter_id, google_civic_election_id, google_civic_district_ocd_id):
        exception_does_not_exist = False
        exception_multiple_object_returned = False
        google_civic_ballot_item_on_stage = BallotItem()
        google_civic_ballot_item_id = 0

        if positive_value_exists(voter_id) and positive_value_exists(google_civic_election_id) and \
                positive_value_exists(google_civic_district_ocd_id):
            try:
                google_civic_ballot_item_on_stage = BallotItem.objects.get(
                    voter_id__exact=voter_id,
                    google_civic_election_id__exact=google_civic_election_id,
                    district_ocd_id=google_civic_district_ocd_id,  # TODO This needs to be rethunk
                )
                google_civic_ballot_item_id = google_civic_ballot_item_on_stage.id
            except BallotItem.MultipleObjectsReturned as e:
                handle_record_found_more_than_one_exception(e, logger=logger)
                exception_multiple_object_returned = True
            except BallotItem.DoesNotExist:
                exception_does_not_exist = True

        results = {
            'success':                          True if google_civic_ballot_item_id > 0 else False,
            'DoesNotExist':                     exception_does_not_exist,
            'MultipleObjectsReturned':          exception_multiple_object_returned,
            'google_civic_ballot_item':         google_civic_ballot_item_on_stage,
        }
        return results

    def retrieve_voter_following_org_status(self, voter_id, voter_we_vote_id,
                                            organization_id, organization_we_vote_id):
        """
        Retrieve one follow entry so we can see if a voter is following or ignoring a particular org
        """

        if not positive_value_exists(voter_id) and positive_value_exists(voter_we_vote_id):
            # We need voter_id to call retrieve_follow_organization
            voter_manager = VoterManager()
            voter_id = voter_manager.fetch_local_id_from_we_vote_id(voter_we_vote_id)

        if not positive_value_exists(voter_id) and \
                not (positive_value_exists(organization_id) or positive_value_exists(organization_we_vote_id)):
            results = {
                'status':                       'RETRIEVE_VOTER_FOLLOWING_MISSING_VARIABLES',
                'success':                      False,
                'follow_organization_found':    False,
                'follow_organization_id':       0,
                'follow_organization':          FollowOrganization(),
                'is_following':                 False,
                'is_not_following':             True,
                'is_ignoring':                  False,
                'error_result':                 True,
                'DoesNotExist':                 False,
                'MultipleObjectsReturned':      False,
            }
            return results

        return self.retrieve_follow_organization(0, voter_id, organization_id, organization_we_vote_id)

def voter_position_like_off_save_for_api(voter_device_id, position_like_id, position_entered_id):
    # Get voter_id from the voter_device_id so we can know who is doing the liking
    results = is_voter_device_id_valid(voter_device_id)
    if not results['success']:
        json_data = {
            'status': 'VALID_VOTER_DEVICE_ID_MISSING',
            'success': False,
        }
        return HttpResponse(json.dumps(json_data), content_type='application/json')

    voter_id = fetch_voter_id_from_voter_device_link(voter_device_id)
    if not positive_value_exists(voter_id):
        json_data = {
            'status': "VALID_VOTER_ID_MISSING",
            'success': False,
        }
        return HttpResponse(json.dumps(json_data), content_type='application/json')

    position_like_manager = PositionLikeManager()
    if positive_value_exists(position_like_id) or \
            (positive_value_exists(voter_id) and positive_value_exists(position_entered_id)):
        results = position_like_manager.toggle_off_voter_position_like(
            position_like_id, voter_id, position_entered_id)
        status = results['status']
        success = results['success']
    else:
        status = 'UNABLE_TO_DELETE_POSITION_LIKE-INSUFFICIENT_VARIABLES'
        success = False

    json_data = {
        'status': status,
        'success': success,
    }
    return HttpResponse(json.dumps(json_data), content_type='application/json')

def retrieve_candidate_photos_for_election_view(request, election_id):
    authority_required = {'admin'}  # admin, verified_volunteer
    if not voter_has_authority(request, authority_required):
        return redirect_to_sign_in_page(request, authority_required)

    google_civic_election_id = convert_to_int(election_id)

    # We only want to process if a google_civic_election_id comes in
    if not positive_value_exists(google_civic_election_id):
        messages.add_message(request, messages.ERROR, "Google Civic Election ID required.")
        return HttpResponseRedirect(reverse('candidate:candidate_list', args=()))

    try:
        candidate_list = CandidateCampaign.objects.order_by('candidate_name')
        if positive_value_exists(google_civic_election_id):
            candidate_list = candidate_list.filter(google_civic_election_id=google_civic_election_id)
    except CandidateCampaign.DoesNotExist:
        pass

    display_messages = False
    force_retrieve = False
    # Loop through all of the candidates in this election
    for we_vote_candidate in candidate_list:
        retrieve_candidate_results = retrieve_candidate_photos(we_vote_candidate, force_retrieve)

        if retrieve_candidate_results['status'] and display_messages:
            messages.add_message(request, messages.INFO, retrieve_candidate_results['status'])

    return HttpResponseRedirect(reverse('candidate:candidate_list', args=()) + "?google_civic_election_id={var}".format(
        var=google_civic_election_id))

def refresh_twitter_candidate_details_for_election(google_civic_election_id):
    twitter_handles_added = 0
    profiles_refreshed_with_twitter_data = 0

    google_civic_election_id = convert_to_int(google_civic_election_id)

    candidate_list_manager = CandidateCampaignListManager()
    return_list_of_objects = True
    candidates_results = candidate_list_manager.retrieve_all_candidates_for_upcoming_election(
        google_civic_election_id, return_list_of_objects)
    if candidates_results['candidate_list_found']:
        candidate_list = candidates_results['candidate_list_objects']

        for candidate in candidate_list:
            # Extract twitter_handle from google_civic_election information
            if positive_value_exists(candidate.twitter_url) \
                    and not positive_value_exists(candidate.candidate_twitter_handle):
                # If we got a twitter_url from Google Civic, and we haven't already stored a twitter handle, move it
                candidate.candidate_twitter_handle = extract_twitter_handle_from_text_string(candidate.twitter_url)
                candidate.save()
                twitter_handles_added += 1
            if positive_value_exists(candidate.candidate_twitter_handle):
                refresh_twitter_candidate_details(candidate)
                profiles_refreshed_with_twitter_data += 1

    status = "CANDIDATE_SOCIAL_MEDIA_RETRIEVED"
    results = {
        'success':                              True,
        'status':                               status,
        'twitter_handles_added':                twitter_handles_added,
        'profiles_refreshed_with_twitter_data': profiles_refreshed_with_twitter_data,
    }
    return results