import_representatives.py 10.9 KB
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# coding: utf-8

import logging
import sys
from datetime import datetime

import django.dispatch
import ijson
import django
from django.apps import apps
from django.db import transaction
from django.utils import timezone

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from representatives.models import (Country, Mandate, Email, Address, WebSite,
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                                    Representative, Constituency, Phone, Group,
                                    Chamber)
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from variants import FranceDataVariants

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logger = logging.getLogger(__name__)

representative_pre_import = django.dispatch.Signal(
    providing_args=['representative_data'])


def _get_mdef_item(mdef, item, json, default=None):
    if item in mdef:
        return mdef[item] % json

    if '%s_path' % item in mdef:
        return _get_path(json, mdef['%s_path' % item])

    if '%s_fn' % item in mdef:
        return mdef['%s_fn' % item](json)

    return default


def _parse_date(date):
    return datetime.strptime(date, "%Y-%m-%d").date()


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def _create_mandate(representative, group, constituency, role='',
                    begin_date=None, end_date=None):
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    mandate, _ = Mandate.objects.get_or_create(
        representative=representative,
        group=group,
        constituency=constituency,
        role=role,
        begin_date=begin_date,
        end_date=end_date
    )

    if _:
        logger.debug('Created mandate %s', mandate.pk)


def _get_path(dict_, path):
    '''
    Get value at specific path in dictionary. Path is specified by slash-
    separated string, eg _get_path(foo, 'bar/baz') returns foo['bar']['baz']
    '''
    cur = dict_
    for part in path.split('/'):
        cur = cur[part]
    return cur


class GenericImporter(object):

    def pre_import(self):
        self.import_start_datetime = timezone.now()

    def touch_model(self, model, **data):
        '''
        This method create or look up a model with the given data
        it saves the given model if it exists, updating its
        updated field
        '''
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        instance, created = model.objects.get_or_create(**data)

        if not created:
            if instance.updated < self.import_start_datetime:
                instance.save()     # Updates updated field

        return (instance, created)


class FranceDataImporter(GenericImporter):
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    url = 'http://francedata.future/data/parlementaires.json'
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    def parse_date(self, date):
        return _parse_date(date)

    def __init__(self, variant):
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        self.france = Country.objects.get(name="France")
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        self.variant = FranceDataVariants[variant]
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        self.chamber, _ = Chamber.objects.get_or_create(
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            name=self.variant['chamber'],
            abbreviation=self.variant['abbreviation'], country=self.france)
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        self.ch_constituency, _ = Constituency.objects.get_or_create(
            name=self.variant['chamber'], country=self.france)
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    @transaction.atomic
    def manage_rep(self, rep_json):
        '''
        Import a rep as a representative from the json dict fetched from
        FranceData (which comes from nosdeputes.fr)
        '''
        remote_id = rep_json[self.variant['remote_id_field']]

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        if rep_json['num_circo'] == 'non disponible':
            rep_json['num_circo'] = 'nd'

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        if not remote_id:
            logger.warning('Skipping MEP without UID %s %s',
                           rep_json['nom'],
                           rep_json[self.variant['remote_id_field']])
            return

        # Some versions of memopol will connect to this and skip inactive reps.
        responses = representative_pre_import.send(sender=self,
                representative_data=rep_json)

        for receiver, response in responses:
            if response is False:
                logger.debug(
                    'Skipping MEP %s', rep_json['nom'])
                return

        try:
            representative = Representative.objects.get(remote_id=remote_id)
        except Representative.DoesNotExist:
            representative = Representative(remote_id=remote_id)

        # Save representative attributes
        self.import_representative_details(representative, rep_json)

        representative.save()

        self.add_mandates(representative, rep_json)

        self.add_contacts(representative, rep_json)

        logger.debug('Imported MEP %s', unicode(representative))

        return representative

    def import_representative_details(self, representative, rep_json):
        representative.active = True

        if rep_json.get("date_naissance"):
            representative.birth_date = _parse_date(rep_json["date_naissance"])
        if rep_json.get("lieu_naissance"):
            representative.birth_place = rep_json["lieu_naissance"]

        representative.photo = rep_json['photo_url']
        representative.full_name = rep_json["nom"]

        gender_convertion_dict = {
            u"F": 1,
            u"H": 2
        }
        if 'sexe' in rep_json:
            representative.gender = gender_convertion_dict.get(rep_json[
                                                               'sexe'], 0)
        else:
            representative.gender = 0

        representative.slug = rep_json['slug']

    def add_mandates(self, representative, rep_json):
        '''
        Create mandates from rep data based on variant configuration
        '''

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        # Mandate in country group for party constituency
        if rep_json.get('parti_ratt_financier'):
            constituency, _ = Constituency.objects.get_or_create(
                name=rep_json.get('parti_ratt_financier'), country=self.france)

            group, _ = self.touch_model(model=Group,
                                        abbreviation=self.france.code,
                                        kind='country',
                                        name=self.france.name)

            _create_mandate(representative, group, constituency, 'membre')

        # Configurable mandates
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        for mdef in self.variant['mandates']:
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            if mdef.get('chamber', False):
                chamber = self.chamber
            else:
                chamber = None

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            if 'from' in mdef:
                elems = mdef['from'](rep_json)
            else:
                elems = [rep_json]

            for elem in elems:
                name = _get_mdef_item(mdef, 'name', elem, '')
                abbr = _get_mdef_item(mdef, 'abbr', elem, '')

                group, _ = self.touch_model(model=Group,
                                            abbreviation=abbr,
                                            kind=mdef['kind'],
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                                            chamber=chamber,
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                                            name=name)

                role = _get_mdef_item(mdef, 'role', elem, 'membre')
                start = _get_mdef_item(mdef, 'start', elem, None)
                if start is not None:
                    start = _parse_date(start)
                end = _get_mdef_item(mdef, 'end', elem, None)
                if end is not None:
                    end = _parse_date(end)

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                _create_mandate(representative, group, self.ch_constituency,
                                role, start, end)
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                logger.debug(
                    '%s => %s: %s of "%s" (%s) %s-%s' % (rep_json['slug'],
                    mdef['kind'], role, name, abbr, start, end))

    def add_contacts(self, representative, rep_json):
        # Websites
        websites = rep_json.get('sites_web', [])
        for site in websites:
            if not site['site'].startswith('http://twitter.com/'):
                self.touch_model(model=WebSite,
                                 url=site['site'],
                                 representative=representative
                                 )

        # Twitter
        if rep_json.get('twitter'):
            tid = rep_json.get('twitter')
            self.touch_model(model=WebSite,
                             representative=representative,
                             kind='twitter',
                             url='http://twitter.com/%s' % tid
                             )

        # E-mails
        emails = rep_json.get('emails', [])
        for email in emails:
            mail = email['email']
            self.touch_model(
                model=Email,
                representative=representative,
                kind=('official' if mail.endswith(self.variant['mail_domain'])
                    else 'other'),
                email=mail)

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        # Official address
        off_name = self.variant['off_name']
        official_addr, _ = self.touch_model(model=Address,
                                            representative=representative,
                                            country=self.france,
                                            city=self.variant['off_city'],
                                            street=self.variant['off_street'],
                                            number=self.variant['off_number'],
                                            postcode=self.variant['off_code'],
                                            kind='official',
                                            name=off_name
                                            )

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        # Addresses & phone numbers
        addresses = rep_json.get('adresses', [])
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        for item in addresses:
            addr = None
            if 'geo' in item:
                props = item['geo'].get('properties', {})
                name = ''

                if item['adresse'].lower().startswith('permanence'):
                    name = 'Permanence'

                addr, _ = self.touch_model(model=Address,
                                           representative=representative,
                                           country=self.france,
                                           city=props.get('city', ''),
                                           street=props.get('street', ''),
                                           number=props.get('housenumber', ''),
                                           postcode=props.get('postcode', ''),
                                           kind='',
                                           name=name
                                           )
            elif item['adresse'].lower().startswith(off_name.lower()):
                addr = official_addr

            if 'tel' in item:
                self.touch_model(model=Phone, address=addr,
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                                 representative=representative,
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                                 kind='', number=item['tel']
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                                 )


def main(stream=None):
    if not apps.ready:
        django.setup()

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    an_importer = FranceDataImporter('AN')
    GenericImporter.pre_import(an_importer)

    sen_importer = FranceDataImporter('SEN')
    GenericImporter.pre_import(sen_importer)
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    for data in ijson.items(stream or sys.stdin, ''):
        for rep in data:
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            if rep['chambre'] == 'AN':
                an_importer.manage_rep(rep)
            elif rep['chambre'] == 'SEN':
                sen_importer.manage_rep(rep)