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# -*- coding: utf-8 -*- |
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import json |
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import logging |
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from elasticsearch_dsl import Q, SF |
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from sqlalchemy.orm.exc import NoResultFound |
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from tg.decorators import expose, redirect, paginate |
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from tg.exceptions import HTTPNotFound |
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from pyjobsweb.model import JobAlchemy |
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from pyjobsweb.model import JobElastic |
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from pyjobsweb.model.data import SOURCES |
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from pyjobsweb.lib.base import BaseController |
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from pyjobsweb.lib.elasticsearch_ import PaginatedSearch |
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from pyjobsweb.forms.research_forms import JobsResearchForm |
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class SearchJobsController(BaseController): |
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items_per_page = 10 |
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def __init__(self, items_per_page=10): |
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self.items_per_page = items_per_page |
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@staticmethod |
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def _compute_keyword_queries(terms): |
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search_on = dict( |
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description=[ |
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'description', |
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'description.technologies' |
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], |
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title=[ |
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'title', |
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'title.technologies' |
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], |
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company=['company'] |
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) |
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description_query = Q( |
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'multi_match', |
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type='most_fields', |
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query=terms, |
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fields=search_on['description'], |
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fuzziness='AUTO', |
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operator='or', |
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minimum_should_match='1<2 2<2 3<3 4<3 5<4 6<5 7<5 8<6 9<6', |
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boost=len(terms.split(',')) |
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) |
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title_query = Q( |
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'multi_match', |
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type='most_fields', |
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query=terms, |
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fields=search_on['title'], |
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fuzziness='AUTO', |
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operator='or', |
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minimum_should_match='1<1', |
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boost=20 - len(terms.split(',')) + 1 |
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) |
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company_name_query = Q( |
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'multi_match', |
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type='best_fields', |
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query=terms, |
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fields=search_on['company'], |
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fuzziness='AUTO', |
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operator='or', |
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minimum_should_match='1<1', |
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boost=50 |
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) |
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keyword_queries = Q( |
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'bool', |
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must=[ |
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company_name_query |
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], |
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should=[ |
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title_query, |
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description_query |
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] |
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) | Q( |
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'bool', |
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must=[ |
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description_query |
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], |
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should=[ |
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title_query, |
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company_name_query |
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] |
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) |
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return keyword_queries |
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@staticmethod |
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def _compute_decay_functions(): |
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decay_function = SF( |
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'gauss', |
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publication_datetime=dict( |
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origin='now', |
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scale='30d', |
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offset='7d', |
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decay='0.1' |
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) |
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) |
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return [decay_function] |
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@staticmethod |
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def _apply_geolocation_filters(query, (lat, lon), radius): |
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query = query.filter( |
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'geo_distance', |
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geolocation=[lon, lat], |
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distance='%skm' % float(radius) |
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) |
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query = query.filter( |
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'term', |
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geolocation_is_valid=True |
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) |
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return query |
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@staticmethod |
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def _apply_date_sort(query): |
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query = query.sort( |
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'-publication_datetime', |
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'-_score' |
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) |
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return query |
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@expose('pyjobsweb.templates.jobs.list') |
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@paginate('jobs', items_per_page=items_per_page) |
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def index(self, query=None, radius=None, center=None, sort_by=None, |
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*args, **kwargs): |
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if not query and not radius and not center: |
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redirect('/jobs') |
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search_query = JobElastic().search() |
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if query: |
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keyword_queries = self._compute_keyword_queries(query) |
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decay_functions = self._compute_decay_functions() |
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search_query.query = Q( |
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'function_score', |
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query=keyword_queries, |
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functions=decay_functions |
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) |
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try: |
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geoloc_query = json.loads(center) |
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coordinates = geoloc_query['coordinates'] |
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lat, lon = (coordinates['lat'], coordinates['lon']) |
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except (ValueError, TypeError): |
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# One of the following case has occurred: |
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# - Center wasn't a valid json string |
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# - Radius couldn't be converted to float |
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# Since both these information are required to set a geolocation |
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# filter are required, we ignore it. |
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pass |
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else: |
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search_query = self._apply_geolocation_filters( |
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search_query, (lat, lon), radius if radius else 5.0) |
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if sort_by == 'dates': |
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search_query = self._apply_date_sort(search_query) |
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return dict(sources=SOURCES, jobs=PaginatedSearch(search_query), |
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job_offer_search_form=JobsResearchForm) |
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class JobsController(BaseController): |
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items_per_page = 10 |
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search = SearchJobsController(items_per_page) |
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@expose('pyjobsweb.templates.jobs.list') |
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@paginate('jobs', items_per_page=items_per_page) |
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def index(self, *args, **kwargs): |
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try: |
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job_offers = JobAlchemy.get_all_job_offers() |
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except NoResultFound: |
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job_offers = None |
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return dict(sources=SOURCES, jobs=job_offers, |
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job_offer_search_form=JobsResearchForm) |
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@expose('pyjobsweb.templates.jobs.details') |
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def details(self, offer_id, *args, **kwargs): |
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try: |
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job = JobAlchemy.get_job_offer(offer_id) |
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except NoResultFound: |
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raise HTTPNotFound() |
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except Exception as exc: |
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logging.getLogger(__name__).log(logging.ERROR, exc) |
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raise HTTPNotFound() |
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else: |
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return dict( |
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job=job, |
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sources=SOURCES |
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) |
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pyjobs /
web
