made search easier

when no local results, automatically invoke google books search

frontend/templates/search.html

@@ -106,7 +106,7 @@ $j(document).ready(function() {
         loader: '<img src="/static/images/loading.gif" alt="loading..." />',
         callback: function(p) {
             page += 1;
-            var url = "?q={{ q }}&page=" + page;
+            var url = "?q={{ q }}&gbo={{ gbo }}&page=" + page;
             $j.get(url, function(html) {
                 var view = $j(".listview").length > 0 ? "list" : "panel";
                 var results = $j(html).find(".book");
@@ -159,8 +159,14 @@ $j(document).ready(function() {
                     </div>
                     {% endfor %}
                 </div></div>
+              {% else %}
+              <div style="margin: 20px; font-size:14px">We couldn't find any matches in the Unglue.it database of free-licensed books.</div>
               {% endif %}
+                {% if not results and not campaign_works %}
+                <div style="margin: 20px; font-size:14px">Google Books couldn't find any matches either.</div>
+                {% else %}
                 <div class="content-block-heading">
+                    
                     <h2 class="content-heading"><a href="https://www.google.com/search?q={{q }}&amp;tbm=bks">Google Books</a> search results</span></h2>
                     
                       {% if not campaign_works %}
@@ -193,6 +199,7 @@ $j(document).ready(function() {
                     {% endfor %}
                 </div></div>
                 <div id="results-bottom"></div>
+                {% endif %}
             </div>    
         </div>
         </div>

frontend/views.py

@@ -2126,14 +2126,21 @@ def search(request):
     q = request.GET.get('q', '')
     request.session['q']=q
     page = int(request.GET.get('page', 1))
-    
+    gbo = request.GET.get('gbo', 'n') # gbo is flag for google books only
     our_stuff =  Q(is_free=True) | Q(campaigns__isnull=False )
-    if q != '' and page==1:
+    if q != '' and page==1 and not gbo=='y':
         work_query = Q(title__icontains=q) | Q(editions__authors__name__icontains=q) | Q(subjects__name__iexact=q)
         campaign_works = models.Work.objects.filter(our_stuff).filter(work_query).distinct()
-        results = models.Work.objects.none()
+        for work in campaign_works:
+            results = models.Work.objects.none()
+            break
+        else:
+            results = gluejar_search(q, user_ip=request.META['REMOTE_ADDR'], page=1)
+            gbo = 'y'
     else:
-        results = gluejar_search(q, user_ip=request.META['REMOTE_ADDR'], page=page-1)
+        if gbo == 'n':
+            page=page-1 # because page=1 is the unglue.it results
+        results = gluejar_search(q, user_ip=request.META['REMOTE_ADDR'], page=page)
         campaign_works = None
 
     # flag search result as on wishlist as appropriate
@@ -2146,6 +2153,7 @@ def search(request):
             works.append(result)
     context = {
         "q": q,
+        "gbo": gbo,
         "results": works,
         "campaign_works": campaign_works
     }