--- a/web/hdalab/views/ajax.py Fri Nov 16 18:12:05 2012 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,458 +0,0 @@
-# -*- coding: utf-8 -*-
-'''
-Created on Jan 31, 2012
-
-@author: ymh
-'''
-from django.conf import settings
-from django.core.cache import cache
-from django.db.models import Q, Count, Min
-from django.http import HttpResponse
-from hdabo.models import Tag, Datasheet, TaggedSheet
-from hdalab.models import HdaSession, Country, TagYears, DatasheetExtras
-from hdalab.models.dataviz import DbpediaFieldsTranslation, DbpediaFields
-from hdalab.models.categories import WpCategory, WpCategoryInclusion, TagWpCategory
-from hdalab.utils import fix_cache_key
-import copy
-import django.utils.simplejson as json
-import hmac
-import itertools
-import uuid
-
-def tagtranslation(request):
-
- lang = request.GET.get('lang',request.LANGUAGE_CODE)
- labels = request.GET.get('labels',None)
-
- if not labels:
- return HttpResponse(content=json.dumps({}), mimetype='application/json')
-
- labelslist = [lbl.strip() for lbl in labels.split(",")]
- masters = []
-
- for lbl in labelslist:
- labelqs = Tag.objects.select_related('dbpedia_fields').filter(~Q(dbpedia_uri = None), label__iexact = lbl)[0:1]
- if len(labelqs) > 0:
- tag = labelqs.get()
- if tag.dbpedia_fields:
- masters.append(tag.dbpedia_fields)
-
- translationqs = DbpediaFieldsTranslation.objects.select_related("master", "master__tag").filter(master__in = masters, language_code=lang)
-
- translations = dict([(t.master.label, t.label) for t in translationqs])
-
- return HttpResponse(content=json.dumps(translations), mimetype='application/json')
-
-def subcat(category, globtags, level, max_level ):
- # recursive function used by cattree
- catlabel = category.label
- tags = Tag.objects.filter(wp_categories__wp_category = category).distinct()
- taglabels = [k for k in dict([(t.label,t.label) for t in tags])]
- resobj = {
- 'label': category.label,
- 'themes': [],
- 'contents': []
- }
- for label in taglabels:
- if label == catlabel:
- globtags[label] = {'level': level, 'access': resobj }
- else:
- tag_in_list = {'label' : label, 'contents': []}
- resobj['themes'].append(tag_in_list)
- globtags[label] = {'level': (level + 1), 'access': tag_in_list }
-
- if level < max_level:
- subcats = WpCategory.objects.filter(parent_categories__parent_category = category)
- resobj['themes'] += [subcat(subcats[i], globtags, level + 1, max_level ) for i in range(len(subcats))]
- return resobj
-
-def cleantags(category):
- if category.has_key('contents') and len(category['contents']) == 0:
- del category['contents']
- if category.has_key('contents'):
- category['contents'] = sorted(category['contents'], key=lambda content: -content['score'])
- if category.has_key('themes'):
- themes = []
- for theme in category['themes']:
- clean_theme = cleantags(theme)
- if clean_theme.has_key('themes') or clean_theme.has_key('contents'):
- themes.append(clean_theme)
- category['themes'] = sorted(themes, key=lambda cat: cat['label'])
- if len(category['themes']) == 0:
- del category['themes']
- return category
-
-def cattree(request):
- # Gets the category tree from a label
- ROOT_MAX_TAG_ORDER = 8
- MAX_TAG_ORDER = 8
- MAX_LEVEL = 3
- LEVEL_COEFF = 5
- label = request.GET.get('label', None)
- lowerlabel = label.lower()
- globtags = {}
- resobj = None
- master_category = WpCategory.objects.filter(label__iexact=label)[0:1]
- if len(master_category):
- resobj = subcat(master_category[0], globtags, 1, MAX_LEVEL )
-
-# tag_list = [k for k in globtags]
-
-# if len(tag_list):
- contents = []
-# datasheets = Datasheet.objects.filter(validated = True, taggedsheet__tag__label__in = tag_list, taggedsheet__order__lte = MAX_TAG_ORDER).distinct()
- datasheets = Datasheet.objects.filter(validated = True, taggedsheet__tag__label__iexact = label, taggedsheet__order__lte = ROOT_MAX_TAG_ORDER).select_related('organisation').distinct()
- for datasheet in datasheets:
- # Calculating where we add the datasheet in the tree
- maintag = None
- maintagscore = -5
- dsscore = 0
- rootscore = 0
- for ts in TaggedSheet.objects.select_related('tag','datasheet').filter(datasheet__id=datasheet.id,order__lte=MAX_TAG_ORDER):
- label = ts.tag.label
- if globtags.has_key(label):
- score = LEVEL_COEFF * globtags[label]['level'] - ts.order
- if score > maintagscore:
- maintagscore = score
- maintag = label
- dsscore = (MAX_TAG_ORDER - ts.order)
- if label.lower() == lowerlabel:
- rootscore = (ROOT_MAX_TAG_ORDER - ts.order)
- if maintag is not None:
- globtags[maintag]['access']['contents'].append({
- 'id': datasheet.id,
- 'title': datasheet.title,
- 'url': datasheet.url,
- 'description': datasheet.description,
- 'hda_id': datasheet.hda_id,
- 'organization': datasheet.organisation.name,
- 'organization_url': datasheet.organisation.website,
- 'score': max(dsscore, rootscore)
- })
- cleantags(resobj)
-
-# resobj['contents'] = [{'id': d.id, 'title': d.title, 'tags': [t.label for t in d.tags.filter(taggedsheet__order__lte=5)]} for d in datasheets]
-
- 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)
- maxcount = int(request.GET.get('count','40'))
- lang = request.GET.get('lang',request.LANGUAGE_CODE)
-
- stemming_langs = [ 'fr', 'en', 'de', 'it' ]
- # For Japanese, there are no word boundaries, we should not use the regexp in that case
- no_translate_langs = [ 'fr' ]
-
- if q:
- lq = q.lower()
- qs = Tag.objects.select_related('dbpedia_fields').filter(datasheet__validated=True)
- qrx = '(\\m|\\b)%s'%q
- if lang in no_translate_langs:
- if lang in stemming_langs:
- qs = qs.filter( label__iregex = qrx )
- else:
- qs = qs.filter( label__icontains = q )
- else:
- if lang in stemming_langs:
- qs = qs.filter(dbpedia_fields__translations__label__iregex=qrx, dbpedia_fields__translations__language_code=lang, dbpedia_fields__translations__is_label_translated = True)
- else:
- qs = qs.filter(dbpedia_fields__translations__label__icontains=q, dbpedia_fields__translations__language_code=lang, dbpedia_fields__translations__is_label_translated = True)
- else:
- qs = Tag.objects.filter(~Q(dbpedia_uri = None))
-
- qs = qs.annotate(nb=Count('datasheet',distinct=True)).order_by('-nb')[:maxcount]
-
- qslist = list(qs)
-
- if lang in no_translate_langs:
- translations = {}
- else:
- transqs = DbpediaFieldsTranslation.objects.filter(master__tag__in = qslist, language_code=lang, is_label_translated=True).select_related("master")
- translations = dict([(tr.master.tag_id, {'label':tr.label,'abstract':tr.abstract, 'is_label_translated': tr.is_label_translated}) for tr in transqs])
-
- res = []
-
- for t in qslist:
- dbfields = t.dbpedia_fields
- resobj = {'original_label':t.label,'nb':t.nb}
- resobj['thumbnail'] = dbfields.thumbnail if dbfields is not None else None
-
-# if t.id in translations and not translations[t.id].get('is_label_translated', True):
-# continue
- if t.id in translations:
- resobj['value'] = translations[t.id]['label']
- resobj['abstract'] = translations[t.id]['abstract']
- else:
- resobj['value'] = t.label
- resobj['abstract'] = dbfields.abstract if dbfields is not None else None
- if q is None or resobj['value'].lower().find(lq) != -1:
- res.append(resobj)
-
- return HttpResponse(content=json.dumps(res), mimetype='application/json')
-
-def catsearch(request):
-
- q = request.GET.get('term',None)
-
- # On ne récupère que les catégories qui sont également des tags
- qrx = '(\\m|\\b)%s'%q
- qs = Tag.objects.filter(label__iregex=q)
-
- labels = [tag.label for tag in qs]
-
- qs = WpCategory.objects.annotate(nb=Count('child_categories__child_category__tags')).filter(label__in = labels, nb__gt=0)
-
- res = [{'value':t.label} for t in qs]
-
- return HttpResponse(content=json.dumps(res), mimetype='application/json')
-
-def filter(request):
-
- lang = request.GET.get('lang',request.LANGUAGE_CODE)
- 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 = int(request.GET.get('mto', '12'))
- content_count = request.GET.get('contentcount', 12)
- tag_count = request.GET.get('tagcount', 30)
- no_translate_langs = [ 'fr' ]
-
- key_parts = ("filter",lang,periode,label,country,contentlist,max_tag_order,content_count,tag_count)
- key_parts = [unicode(p).encode("utf-8") for p in key_parts]
-
- cache_key = fix_cache_key("-".join(key_parts))
-
- outputstr = cache.get(cache_key)
-
- if outputstr is None:
-
- matchtagids = []
-
- tagqs = Tag.objects.exclude(category__label__in = ['Datation', 'Localisation', 'Discipline artistique']).filter(~Q(dbpedia_uri = None))
- countryqs = Country.objects
- discqs = Tag.objects.filter(~Q(dbpedia_uri = None), category__label = u'Discipline artistique').select_related('dbpedia_fields')
- yearqs = TagYears.objects
-
- contentqs = Datasheet.objects.filter(validated=True)
- labeltranslations = []
-
- if label or periode or country or contentlist :
- matchtagqslist = []
-
- 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(~Q(dbpedia_uri = None),
- years__end_year__gte = start_year,
- years__start_year__lte = end_year,
- years__end_year__lte = maxend,
- years__start_year__gte = minstart,
- )
- matchtagqslist.append(matchtagqs)
-
- if label:
- for txtlbl in label.split(","):
- matchtagqs = Tag.objects.select_related('dbpedia_fields').filter(~Q(dbpedia_uri = None), label__iexact = txtlbl.strip())
- matchtagqslist.append(matchtagqs)
-
- if country:
- for country_uri in country.split(","):
- matchtagqs = Tag.objects.filter(~Q(dbpedia_uri = None),locatedin__country__dbpedia_uri = country_uri)
- matchtagids += [t.id for t in matchtagqs if t.id not in matchtagids]
- matchtagqslist.append(matchtagqs)
- if contentlist:
- contentqs = contentqs.filter(id__in = contentlist.split(","))
-
- tagcond = None
- tagcondid = None
- for matchtagqs in matchtagqslist:
- newcond = Q(id__in = TaggedSheet.objects.filter(tag__in = copy.deepcopy(matchtagqs), order__lte = max_tag_order).values('datasheet_id'))
- newcondid = Q(id__in = matchtagqs)
- tagcond = newcond if tagcond is None else (tagcond & newcond)
- tagcondid = newcondid if tagcondid is None else (tagcondid | newcondid)
-
- contentqs = contentqs.filter(tagcond).distinct()
- matchtagidsqs = list(Tag.objects.select_related("dbpedia_fields").only("id").filter(tagcondid))
- matchtagids = [t.id for t in matchtagidsqs]
-
- if lang not in no_translate_langs:
- masters = [t.dbpedia_fields for t in matchtagidsqs if t.dbpedia_fields is not None]
-
- translationqs = DbpediaFieldsTranslation.objects.select_related("master", "master__tag").filter(master__in = masters, language_code=lang)
- labeltranslations = [{'label':t.master.label, 'translated_label':t.label} for t in translationqs]
-
- 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' : [], 'hda_id': content.hda_id, '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 = list(TaggedSheet.objects.select_related('tag', 'tag__dbpedia_fields').filter(datasheet__in = contentids, order__lte = max_tag_order).order_by('order'))
-
- translations = {}
-
- if lang not in no_translate_langs:
- transqs = DbpediaFieldsTranslation.objects.filter(master__in = [ts.tag.dbpedia_fields for ts in qs], language_code = lang)
- translations = dict([(trans.master_id,trans.label) for trans in transqs])
-
- 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 , 'translated_label': translations.get(ts.tag.dbpedia_fields.id, ts.tag.label) if ts.tag.dbpedia_fields is not None else ts.tag.label})
-
- 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]
- tagqs = tagqs.annotate(nb=Count('datasheet')).order_by('-nb').only('id','label')[:tag_count]
- #.select_related('dbpedia_fields')
- # hack to add only necessary fields in the group by
- # contournement bug https://code.djangoproject.com/ticket/17144
- tagqs.query.clear_select_fields()
- tagqs.query.add_fields(['id','label'], False)
- tagqs.query.set_group_by()
-
- tagqslist = list(tagqs)
-
- dbpediafields = dict([(df.tag_id, df) for df in DbpediaFields.objects.filter(tag__in = tagqslist)])
-
- if lang not in no_translate_langs:
- transqs = DbpediaFieldsTranslation.objects.filter(master__in = dbpediafields.values(), language_code = lang)
- translations = dict([(trans.master_id,trans.label) for trans in transqs])
-
- tags = [{'id': tag.id, 'label': tag.label, 'score': tag.nb, 'translated_label': translations.get(dbpediafields[tag.id].id, tag.label) if tag.id in dbpediafields else tag.label} for tag in tagqslist]
-
- countryqs = countryqs.annotate(nb=Count('includes__tag__taggedsheet'))
- countries = dict([(country.dbpedia_uri, country.nb) for country in countryqs])
-
- discqslist = list(discqs.annotate(nb=Count('taggedsheet')).order_by('-nb')[:10])
-
- if lang not in no_translate_langs:
- transqs = DbpediaFieldsTranslation.objects.filter(master__in = [tag.dbpedia_fields for tag in discqslist], language_code = lang)
- translations = dict([(trans.master_id,trans.label) for trans in transqs])
-
- disciplines = [{'label':tag.label,'score':tag.nb, 'translated_label': translations.get(tag.dbpedia_fields.id, tag.label) if tag.dbpedia_fields is not None else tag.label} for tag in discqslist]
-
- 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})
-
- tag_translations = {}
- for t in itertools.chain(labeltranslations,disciplines,tags):
- tag_translations[t['label']] = t['translated_label']
- for c in contenus:
- for t in c['tags']:
- tag_translations[t['label']] = t['translated_label']
-
- output = {'count': cont_count, 'contents': contenus, 'tags':tags, 'sparkline':yearchange, 'countries':countries, 'disciplines':disciplines, 'tagtranslations': tag_translations}
- outputstr = json.dumps(output)
- cache.set(cache_key, outputstr)
-
- return HttpResponse(content=outputstr, mimetype='application/json')
-
-def subtree(tree):
- MAX_TAG_ORDER = 16
- label = tree['label']
- sub = tree.get('contents',[])
-
- datasheets = Datasheet.objects.filter(validated = True, taggedsheet__tag__label__iexact = label, taggedsheet__order__lte = MAX_TAG_ORDER).annotate(tagorder=Min('taggedsheet__order')).select_related('organisation').distinct()
-
- contents = [{ 'description': ds.description, 'title': ds.title, 'url': ds.url, 'score': int((MAX_TAG_ORDER - ds.tagorder)/2), 'id': ds.id, 'hda_id': ds.hda_id, 'organization': ds.organisation.name, 'organization_url': ds.organisation.website } for ds in datasheets]
-
- contents = sorted(contents, key=lambda e: -e['score'])
-
- res = { 'label': label }
-
- if len(contents):
- res['contents'] = contents
-
- if len(sub):
- subcats = [subtree(st) for st in sub]
- subcats = [sc for sc in subcats if len(sc.get('contents',[])) or len(sc.get('themes',[]))]
- res['themes'] = subcats
-
- return res
-
-def filltree(request):
-
- tree = request.GET.get('tree','{}')
-
- treeobj = json.loads(tree)
-
- res = subtree(treeobj)
-
- return HttpResponse(content=json.dumps(res), mimetype='application/json')