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[wolnelektury.git] / apps / search / views.py
diff --git a/apps/search/views.py b/apps/search/views.py
index 710c6da..56eef09 100644 (file)
--- a/apps/search/views.py
+++ b/apps/search/views.py
@@ -8,14 +8,15 @@ from django.views.decorators import cache
 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect
 from django.utils.translation import ugettext as _
 
 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect
 from django.utils.translation import ugettext as _
 
-from catalogue.utils import get_random_hash
+from catalogue.utils import split_tags
 from catalogue.models import Book, Tag, Fragment
 from catalogue.models import Book, Tag, Fragment
-from catalogue.fields import dumps
+from pdcounter.models import Author as PDCounterAuthor, BookStub as PDCounterBook
 from catalogue.views import JSONResponse
 from search import Search, JVM, SearchResult
 from lucene import StringReader
 from suggest.forms import PublishingSuggestForm
 from catalogue.views import JSONResponse
 from search import Search, JVM, SearchResult
 from lucene import StringReader
 from suggest.forms import PublishingSuggestForm
-
+from time import sleep
+import re
 import enchant
 
 dictionary = enchant.Dict('pl_PL')
 import enchant
 
 dictionary = enchant.Dict('pl_PL')
@@ -34,10 +35,12 @@ def did_you_mean(query, tokens):
         authors = Tag.objects.filter(category='author', name__iregex=match_word_re(t))
         if len(authors) > 0:
             continue
         authors = Tag.objects.filter(category='author', name__iregex=match_word_re(t))
         if len(authors) > 0:
             continue
-        
+
         if not dictionary.check(t):
             try:
         if not dictionary.check(t):
             try:
-                change[t] = dictionary.suggest(t)[0]
+                change_to = dictionary.suggest(t)[0].lower()
+                if change_to != t.lower():
+                    change[t] = change_to
             except IndexError:
                 pass
 
             except IndexError:
                 pass
 
@@ -50,14 +53,30 @@ def did_you_mean(query, tokens):
     return query
 
 
     return query
 
 
+JVM.attachCurrentThread()
+_search = None
+
+
+def get_search():
+    global _search
+
+    while _search is False:
+        sleep(1)
+
+    if _search is None:
+        _search = False
+        _search = Search()
+    return _search
+
+
 def hint(request):
     prefix = request.GET.get('term', '')
     if len(prefix) < 2:
         return JSONResponse([])
     JVM.attachCurrentThread()
 def hint(request):
     prefix = request.GET.get('term', '')
     if len(prefix) < 2:
         return JSONResponse([])
     JVM.attachCurrentThread()
-    s = Search()
 
 
-    hint = s.hint()
+    search = get_search()
+    hint = search.hint()
     try:
         tags = request.GET.get('tags', '')
         hint.tags(Tag.get_tag_list(tags))
     try:
         tags = request.GET.get('tags', '')
         hint.tags(Tag.get_tag_list(tags))
@@ -69,14 +88,29 @@ def hint(request):
     # jezeli tagi dot tylko ksiazki, to wazne zeby te nowe byly w tej samej ksiazce
     # jesli zas dotycza themes, to wazne, zeby byly w tym samym fragmencie.
 
     # jezeli tagi dot tylko ksiazki, to wazne zeby te nowe byly w tej samej ksiazce
     # jesli zas dotycza themes, to wazne, zeby byly w tym samym fragmencie.
 
-    tags = s.hint_tags(prefix)
-    books = s.hint_books(prefix)
+    tags = search.hint_tags(prefix, pdcounter=True)
+    books = search.hint_books(prefix)
+
+    
+    def is_dupe(tag):
+        if isinstance(tag, PDCounterAuthor):
+            if filter(lambda t: t.slug == tag.slug and t != tag, tags):
+                return True
+        elif isinstance(tag, PDCounterBook):
+            if filter(lambda b: b.slug == tag.slug, tags):
+                return True
+        return False
 
 
-    # TODO DODAC TU HINTY
+    tags = filter(lambda t: not is_dupe(t), tags)
+
+    def category_name(c):
+        if c.startswith('pd_'):
+            c = c[len('pd_'):]
+        return _(c)
 
     return JSONResponse(
         [{'label': t.name,
 
     return JSONResponse(
         [{'label': t.name,
-          'category': _(t.category),
+          'category': category_name(t.category),
           'id': t.id,
           'url': t.get_absolute_url()}
           for t in tags] + \
           'id': t.id,
           'url': t.get_absolute_url()}
           for t in tags] + \
@@ -90,75 +124,123 @@ def hint(request):
 def main(request):
     results = {}
     JVM.attachCurrentThread()  # where to put this?
 def main(request):
     results = {}
     JVM.attachCurrentThread()  # where to put this?
-    srch = Search()
 
     results = None
     query = None
 
     results = None
     query = None
-    fuzzy = False
+    fuzzy = False #0.8
+
+    query = request.GET.get('q','')
+    # book_id = request.GET.get('book', None)
+    # book = None
+    # if book_id is not None:
+    #     book = get_object_or_404(Book, id=book_id)
+
+    # hint = search.hint()
+    # try:
+    #     tag_list = Tag.get_tag_list(tags)
+    # except:
+    #     tag_list = []
+
+    if len(query) < 2:
+        return render_to_response('catalogue/search_too_short.html', {'prefix': query},
+                                  context_instance=RequestContext(request))
+
+    search = get_search()
+    # hint.tags(tag_list)
+    # if book:
+    #     hint.books(book)
+    tags = search.hint_tags(query, pdcounter=True, prefix=False, fuzzy=fuzzy)
+    tags = split_tags(tags)
+
+    toks = StringReader(query)
+    tokens_cache = {}
+
+    author_results = search.search_phrase(toks, 'authors', fuzzy=fuzzy, tokens_cache=tokens_cache)
+    title_results = search.search_phrase(toks, 'title', fuzzy=fuzzy, tokens_cache=tokens_cache)
+
+    # Boost main author/title results with mixed search, and save some of its results for end of list.
+    # boost author, title results
+    author_title_mixed = search.search_some(toks, ['authors', 'title', 'tags'], fuzzy=fuzzy, tokens_cache=tokens_cache)
+    author_title_rest = []
+    for b in author_title_mixed:
+        bks = filter(lambda ba: ba.book_id == b.book_id, author_results + title_results)
+        for b2 in bks:
+            b2.boost *= 1.1
+        if bks is []:
+            author_title_rest.append(b)
+
+    # Do a phrase search but a term search as well - this can give us better snippets then search_everywhere,
+    # Because the query is using only one field.
+    text_phrase = SearchResult.aggregate(
+        search.search_phrase(toks, 'content', fuzzy=fuzzy, tokens_cache=tokens_cache, snippets=True, book=False, slop=4),
+        search.search_some(toks, ['content'], tokens_cache=tokens_cache, snippets=True, book=False))
+
+    everywhere = search.search_everywhere(toks, fuzzy=fuzzy, tokens_cache=tokens_cache)
+
+    def already_found(results):
+        def f(e):
+            for r in results:
+                if e.book_id == r.book_id:
+                    e.boost = 0.9
+                    results.append(e)
+                    return True
+            return False
+        return f
+    f = already_found(author_results + title_results + text_phrase)
+    everywhere = filter(lambda x: not f(x), everywhere)
+
+    author_results = SearchResult.aggregate(author_results)
+    title_results = SearchResult.aggregate(title_results)
+
+    everywhere = SearchResult.aggregate(everywhere, author_title_rest)
+
+    for res in [author_results, title_results, text_phrase, everywhere]:
+        res.sort(reverse=True)
+        for r in res:
+            for h in r.hits:
+                h['snippets'] = map(lambda s:
+                                    re.subn(r"(^[ \t\n]+|[ \t\n]+$)", u"",
+                                            re.subn(r"[ \t\n]*\n[ \t\n]*", u"\n", s)[0])[0], h['snippets'])
 
 
-    if 'q' in request.GET:
-        tags = request.GET.get('tags', '')
-        query = request.GET['q']
-        book_id = request.GET.get('book', None)
-        book = None
-        if book_id is not None:
-            book = get_object_or_404(Book, id=book_id)
+    suggestion = did_you_mean(query, search.get_tokens(toks, field="SIMPLE"))
 
 
-        hint = srch.hint()
+    def ensure_exists(r):
         try:
         try:
-            tag_list = Tag.get_tag_list(tags)
-        except:
-            tag_list = []
-
-        if len(query) < 2:
-            return render_to_response('catalogue/search_too_short.html', {'tags': tag_list, 'prefix': query},
-                                      context_instance=RequestContext(request))
-
-        hint.tags(tag_list)
-        if book:
-            hint.books(book)
-
-        toks = StringReader(query)
-        fuzzy = 'fuzzy' in request.GET
-        if fuzzy:
-            fuzzy = 0.7
-
-        results = SearchResult.aggregate(srch.search_perfect_book(toks, fuzzy=fuzzy, hint=hint),
-                                         srch.search_book(toks, fuzzy=fuzzy, hint=hint),
-                                         srch.search_perfect_parts(toks, fuzzy=fuzzy, hint=hint),
-                                         srch.search_everywhere(toks, fuzzy=fuzzy, hint=hint))
-
-        for r in results:
-            r.process_hits()
-
-        results.sort(reverse=True)
-
-        for r in results:
-            print "-----"
-            for h in r.hits:
-                print "- %s" % h
-
-                # Did you mean?
-        suggestion = did_you_mean(query, srch.get_tokens(toks, field="SIMPLE"))
-
-        if len(results) == 1:
-            if len(results[0].hits) == 0:
-                return HttpResponseRedirect(results[0].book.get_absolute_url())
-            elif len(results[0].hits) == 1 and results[0].hits[0] is not None:
-                frag = Fragment.objects.get(anchor=results[0].hits[0])
-                return HttpResponseRedirect(frag.get_absolute_url())
-        elif len(results) == 0:
-            form = PublishingSuggestForm(initial={"books": query + ", "})
-            return render_to_response('catalogue/search_no_hits.html',
-                                      {'tags': tag_list,
-                                       'prefix': query,
-                                       "form": form,
-                                       'did_you_mean': suggestion},
-                context_instance=RequestContext(request))
-
-        return render_to_response('catalogue/search_multiple_hits.html',
-                                  {'tags': tag_list,
+            return r.book
+        except Book.DoesNotExist:
+            return False
+
+    author_results = filter(ensure_exists, author_results)
+    title_results = filter(ensure_exists, title_results)
+    text_phrase = filter(ensure_exists, text_phrase)
+    everywhere = filter(ensure_exists, everywhere)
+
+    results = author_results + title_results + text_phrase + everywhere
+    # ensure books do exists & sort them
+    results.sort(reverse=True)
+
+    if len(results) == 1:
+        fragment_hits = filter(lambda h: 'fragment' in h, results[0].hits)
+        if len(fragment_hits) == 1:
+            #anchor = fragment_hits[0]['fragment']
+            #frag = Fragment.objects.get(anchor=anchor)
+            return HttpResponseRedirect(fragment_hits[0]['fragment'].get_absolute_url())
+        return HttpResponseRedirect(results[0].book.get_absolute_url())
+    elif len(results) == 0:
+        form = PublishingSuggestForm(initial={"books": query + ", "})
+        return render_to_response('catalogue/search_no_hits.html',
+                                  {'tags': tags,
                                    'prefix': query,
                                    'prefix': query,
-                                   'results': results,
+                                   "form": form,
                                    'did_you_mean': suggestion},
             context_instance=RequestContext(request))
                                    'did_you_mean': suggestion},
             context_instance=RequestContext(request))
+
+    return render_to_response('catalogue/search_multiple_hits.html',
+                              {'tags': tags,
+                               'prefix': query,
+                               'results': { 'author': author_results,
+                                            'title': title_results,
+                                            'content': text_phrase,
+                                            'other': everywhere},
+                               'did_you_mean': suggestion},
+        context_instance=RequestContext(request))