def show_search_result(request, query_type, query_string, query_id):
"""
Display CachedSearchResult.
If document is missing create new one using RESTful query redirect.
@param query_type: a string containing query type
@param query_string: a string containing query
@param query_id: a string containing an ID of a CachedSearchResult document
@return: a HttpResponseRedirect object or rendered search result page
"""
# TODO: add meta-header for robots: nocahe, norobots etc
try:
search_result = CachedSearchResult.get(query_id)
except ResourceNotFound:
return HttpResponseRedirect(reverse("create-search-result", args=(query_type, query_string)))
# SEO check
seo_query_type = slugify2(search_result.query_type)
seo_query_string = slugify2(search_result.query_string)
if query_type != seo_query_type or query_string != seo_query_string:
return HttpResponseRedirect(reverse("show-search-result", args=(seo_query_type, seo_query_string, query_id)))
# TODO: if only 1 result, redirect to it directly
return render_to_response("search/%s_results.html" % search_result.query_type, locals())
def get_basic_cached_search_result(query_type, query_string):
"""
Make sure proper CachedSearchResult is present and return its id.
Method performs local, then optional remote (MusicBrainz) lookup of query result
@param query_type: a string containing query type
@param query_string: a string containing query
@return: a string containing SHA1 hash of a query string (the ID of a CachedSearchResult document)
"""
query_id = hashlib.sha1((query_type+query_string).encode('utf-8')).hexdigest()
search_result = CachedSearchResult.get_or_create(query_id)
search_result.query_string = query_string
search_result.query_type = query_type
if 'mb' not in search_result.cache_state: #TODO: add 14day window check
try:
t = mmda_logger('mb','request','search for',query_string)
if query_type == 'artist':
filter = ws.ArtistFilter(name=query_string,limit=RESULTS_LIMIT)
results = mb_query.getArtists(filter) #TODO: add try, or maybe better in 'create_search' as a global wrapper
search_result.results = [ {'name':r.artist.name, 'mbid':extractUuid(r.artist.id), 'score':r.score, 'note':r.artist.disambiguation } for r in results ]
elif query_type == 'release':
filter = ws.ReleaseFilter(title=query_string,limit=RESULTS_LIMIT)
results = mb_query.getReleases(filter) #TODO: add try, or maybe better in 'create_search' as a global wrapper
search_result.results = [ {'artist':r.release.artist.name, 'title':r.release.title, 'mbid':extractUuid(r.release.id), 'artist_mbid':extractUuid(r.release.artist.id), 'score':r.score, 'tracks_count':r.release.tracksCount, 'year':r.release.getEarliestReleaseEvent().getDate() if r.release.getEarliestReleaseEvent() else None} for r in results ]
elif query_type == 'tag':
# TODO: refactor to other packages
import pylast
lastfm = pylast.get_lastfm_network(api_key = settings.LASTFM_API_KEY)
lastfm_similar_tags = lastfm.search_for_tag(query_string).get_next_page()
search_result.results = [ tag.name for tag in lastfm_similar_tags ]
except Exception, e:
# TODO: hard error here
mmda_logger('search','ERROR',e)
raise e
else:
mmda_logger('mb','result','results',len(search_result.results),t)
search_result.cache_state['mb'] = [1,datetime.utcnow()]
search_result.save()