# -*- coding: utf-8 -*-
'''
Created on Jan 31, 2012
@author: ymh
'''
from django.conf import settings
from django.db import connection
from django.db.models import Q, Count, Sum
from django.http import HttpResponse
from hdabo.models import Tag, Datasheet, TaggedSheet
from hdalab.models import TagLinks, HdaSession, Country, TagYears, DatasheetExtras
import django.utils.simplejson as json
import hmac
import uuid
def taginfo(request):
label = request.GET.get('label', None)
resobj = {'requested_label' : label}
resobj["content_count"] = Datasheet.objects.filter(taggedsheet__tag__label__iexact = label).distinct().count()
res = Tag.objects.select_related('dbpedia_fields').filter(label__iexact = label).order_by('-dbpedia_uri')[0:1]
if len(res) == 1:
restag = res.get()
resobj["dbpedia_uri"] = restag.dbpedia_uri
if resobj["dbpedia_uri"] is not None and restag.dbpedia_fields is not None:
dbfield = restag.dbpedia_fields
resobj["abstract"] = dbfield.abstract
resobj["dbpedia_label"] = dbfield.label
resobj["thumbnail"] = dbfield.thumbnail
res = Tag.objects.filter(label__iexact = label).order_by('-wikipedia_url')[0:1]
if len(res) == 1:
resobj["wikipedia_url"] = res.get().wikipedia_url
resobj["links"] = [{'subject':tl.subject.label, 'object':tl.object.label} for tl in TagLinks.objects.select_related().filter(Q(subject__label__iexact = label) | Q(object__label__iexact = label))]
return HttpResponse(content=json.dumps(resobj), mimetype='application/json')
def sessioninfo(request):
data = json.loads(request.GET.get('data', "{}"))
write = False
if 'sessionid' in request.GET:
request.session['sessionid'] = request.GET['sessionid']
if 'sessionkey' in request.GET:
request.session['sessionkey'] = request.GET['sessionkey']
if 'sessionid' in request.session:
sessionid = request.session['sessionid']
if HdaSession.objects.filter(sessionid=sessionid).count() == 1:
sessionkey = request.session.get('sessionkey',None)
hm = hmac.new(settings.SECRET_KEY, sessionid)
if hm.hexdigest() == sessionkey:
write = True
else:
del request.session['sessionid']
if 'sessionid' not in request.session:
sessionid = unicode(uuid.uuid1())
HdaSession.objects.create(sessionid=sessionid, data=json.dumps({}))
write = True
request.session['sessionid'] = sessionid
request.session['sessionkey'] = hmac.new(settings.SECRET_KEY, sessionid).hexdigest()
if write and data:
HdaSession.objects.filter(sessionid=sessionid).update(data=json.dumps(data))
else:
data = HdaSession.objects.get(sessionid=sessionid).data
data = json.loads(data) if data else {}
resobj = {'data': data, "write_allowed" : write, "sessionid": sessionid }
if write:
resobj['sessionkey'] = request.session['sessionkey']
return HttpResponse(content=json.dumps(resobj), mimetype='application/json')
def tagsearch(request):
q = request.GET.get('term',None)
qs = Tag.objects.filter(label__icontains = q) if q else Tag.objects.all()
res = qs.annotate(nb=Count('datasheet')).order_by('-nb')[:20]
return HttpResponse(content=json.dumps([{'label':t.label,'nb':t.nb} for t in res]), mimetype='application/json')
def filter(request):
periode = request.GET.get('period',None)
label = request.GET.get('label', None)
country = request.GET.get('country', None)
contentlist = request.GET.get('contentlist', None)
max_tag_order = request.GET.get('mto', 12)
content_count = request.GET.get('contentcount', 12)
tag_count = request.GET.get('tagcount', 30)
matchtagids = []
tagqs = Tag.objects.exclude(category__label__in = ['Datation', 'Localisation', 'Discipline artistique'])
countryqs = Country.objects
discqs = Tag.objects.filter(category__label = u'Discipline artistique')
yearqs = TagYears.objects
contentqs = Datasheet.objects.filter(validated=True)
if label or periode or country or contentlist :
if periode:
years = periode.split(",")
start_year = int(years[0])
end_year = int(years[0:2][-1])
delta = max(1, (end_year-start_year)/2)
minstart = start_year - delta
maxend = end_year + delta
matchtagqs = Tag.objects.filter(years__end_year__gte = start_year,
years__start_year__lte = end_year,
years__end_year__lte = maxend,
years__start_year__gte = minstart)
matchtagids += [t.id for t in matchtagqs]
contentqs = contentqs.filter(taggedsheet__tag__in = matchtagqs,
taggedsheet__order__lte = max_tag_order)
if label:
for txtlbl in label.split(","):
matchtagqs = Tag.objects.filter(label__iexact = txtlbl)
matchtagids += [t.id for t in matchtagqs if t.id not in matchtagids]
contentqs = contentqs.filter(taggedsheet__tag__in = matchtagqs,
taggedsheet__order__lte = max_tag_order)
if country:
for country_uri in country.split(","):
matchtagqs = Tag.objects.filter(locatedin__country__dbpedia_uri = country_uri)
matchtagids += [t.id for t in matchtagqs if t.id not in matchtagids]
contentqs = contentqs.filter(taggedsheet__tag__in = matchtagqs,
taggedsheet__order__lte = max_tag_order)
if contentlist:
contentqs = contentqs.filter(id__in = contentlist.split(","))
tagqs = tagqs.filter(datasheet__in = contentqs)
countryqs = countryqs.filter(includes__tag__taggedsheet__datasheet__in = contentqs)
discqs = discqs.filter(datasheet__in = contentqs)
yearqs = yearqs.filter(tag__taggedsheet__datasheet__in = contentqs)
if contentlist is None:
contentqs.order_by('?')
cont_count = contentqs.count()
contenus = dict([(content.id, {'score' : 0, 'tags' : [], 'id':content.id, 'title': content.title, 'description': content.description, 'url': content.url}) for content in contentqs[0:content_count]])
contentids = contenus.keys()
qs = DatasheetExtras.objects.select_related('insee').filter(datasheet__in = contentids)
for dse in qs:
contenus[dse.datasheet_id]['coords'] = {'city_name': dse.insee.city_name, 'latitude': dse.insee.latitude, 'longitude': dse.insee.longitude}
qs = TaggedSheet.objects.select_related('tag').filter(datasheet__in = contentids, order__lte = max_tag_order).order_by('order')
for ts in qs:
match_tag = ts.tag.id in matchtagids
contenus[ts.datasheet_id]['tags'].append({'id': ts.tag.id, 'label':ts.tag.label, 'order':ts.order, 'match': match_tag })
if match_tag:
contenus[ts.datasheet_id]['score'] += 2*max_tag_order - ts.order
if contentlist is None:
contenus = sorted(contenus.values(),key=lambda e: -e['score'])
else:
contenus = contenus.values()
tagqs = tagqs.annotate(nb=Count('datasheet')).order_by('-nb')[:tag_count]
tags = [{'id': tag.id, 'label': tag.label, 'score': tag.nb} for tag in tagqs]
countryqs = countryqs.annotate(nb=Count('includes__tag__taggedsheet'))
countries = dict([(country.dbpedia_uri, country.nb) for country in countryqs])
discqs = discqs.annotate(nb=Count('taggedsheet')).order_by('-nb')[:10]
disciplines = [{'label':tag.label,'score':tag.nb} for tag in discqs]
years = {}
yearqs = yearqs.annotate(nb=Count('tag__taggedsheet'))
for ty in yearqs:
for year in range(ty.start_year, ty.end_year):
years[year] = ty.nb + (years[year] if year in years else 0)
yearchange = []
for year in sorted(years.keys()):
score = years[year]
if year < 2011:
if (year-1 not in years and score != 0) or (year-1 in years and years[year-1] != score):
yearchange.append({'year': year, 'score': score})
if year+1 not in years and year != -1 and score != 0:
yearchange.append({'year': year+1, 'score': 0})
output = {'count': cont_count, 'contents': contenus, 'tags':tags, 'sparkline':yearchange, 'countries':countries, 'disciplines':disciplines}
return HttpResponse(content=json.dumps(output), mimetype='application/json')