add featured mode to the widget

Been wanting this for a while!

api/templates/api_help.html

@@ -13,6 +13,17 @@
     {% else %}
        <p> Please <a href="{% url 'superlogin' %}?next={% firstof request.get_full_path|urlencode '/' %}"><span>sign in</span></a> first.</p>
     {% endif %}
+    <h3>Ebook Widgets</h3>
+    <p>You don't need an API key to embed Ebook (HTML) widgets. </p>
+    <div>Here's a widget that displays Unglue.it's featured ebook - it changes most every day!  <a href="{% url 'widget' 'featured' %}">{{base_url}}{% url 'widget' 'featured' %}</a>. Copy/paste this into your site:<br /><textarea rows="7" cols="22">&lt;iframe src="{{base_url}}/api/widget/featured/" width="152" height="325" frameborder="0"&gt;&lt;/iframe&gt;</textarea>
+       <iframe src="{{base_url}}{% url 'widget' 'featured' %}" width="152" height="325" frameborder="0"></iframe></div>
+    {% if campaign %}
+       <div>Here's a sample widget for the book <span style="font-style: italic">{{campaign.name}}</span> with ISBN {{campaign_isbn}}: <a href="{% url 'widget' campaign_isbn %}">{{base_url}}{% url 'widget' campaign_isbn %}</a>. Copy/paste this into your site:<br /><textarea rows="7" cols="22">&lt;iframe src="{{base_url}}/api/widget/{{campaign_isbn}}/" width="152" height="325" frameborder="0"&gt;&lt;/iframe&gt;</textarea>
+       <iframe src="{{base_url}}{% url 'widget' campaign_isbn %}" width="152" height="325" frameborder="0"></iframe>
+       
+       
+       </div>
+    {% endif %}
     
     <h3>Basic API info</h3>
     
@@ -52,13 +63,6 @@ XML: <a href="/api/v1/identifier/?format=xml&amp;api_key={{api_key}}&amp;usernam
     <p> In addition to isbn, you can use 'goog' if you have a google books id, and 'oclc' for oclc numbers.</p>
     {% endif %}
     
-    <h3>Campaign Widgets</h3>
-    <p>You don't need a key to embed campaign (HTML) widgets. </p>
-    {% if campaign %}
-       Here's a sample widget for the book <span style="font-style: italic">{{campaign.name}}</span> with ISBN {{campaign_isbn}}: <a href="{% url 'widget' campaign_isbn %}">{{base_url}}{% url 'widget' campaign_isbn %}</a>
-    {% else %}
-       <p>Since there are currently no campaigns, there are no corresponding widgets.</p>
-    {% endif %}
 
     <h3>OPDS Catalog Feeds</h3>
     <p>We have a basic implementation of <a href="http://opds-spec.org/specs/opds-catalog-1-1-20110627/">OPDS</a> feeds. You don't need a key to use them. The starting point is <code><a href="{% url 'opds' %}">{{base_url}}{% url 'opds' %}</a></code></p>

api/urls.py

@@ -20,7 +20,7 @@ v1_api.register(resources.FreeResource())
 
 urlpatterns = patterns('',
     url(r'^help$', ApiHelpView.as_view(), name="api_help"),
-    url(r'^widget/(?P<isbn>\w+)/$','regluit.api.views.widget', name="widget"),
+    url(r'^widget/(?P<isbn>\w+)/$','regluit.api.views.widget',name="widget"),
     url(r"^opds/$", OPDSNavigationView.as_view(template_name="opds.xml"), name="opds"),
     url(r"^opds/(?P<facet>.*)/$", OPDSAcquisitionView.as_view(), name="opds_acqusition"),
     url(r"^onix/(?P<facet>.*)/$", OnixView.as_view(), name="onix"),

api/views.py

@@ -47,25 +47,31 @@ def negotiate_content(request,work_id):
     
     return HttpResponseRedirect(reverse('work', kwargs={'work_id': work_id}))
 
-def widget(request,isbn):
+def widget(request, isbn):
     """
     supply info for book panel. parameter is named isbn for historical reasons. can be isbn or work_id
     """
    
-        
-    if len(isbn)==10:
-        isbn = regluit.core.isbn.convert_10_to_13(isbn)
-    if len(isbn)==13:
+    if isbn == 'featured':
         try:
-            identifier = models.Identifier.objects.get(type = 'isbn', value = isbn )
-            work = identifier.work
-        except models.Identifier.DoesNotExist:
-            return render_to_response('widget.html', 
-                 { 'work':None,}, 
-                 context_instance=RequestContext(request)
-                )
-    else:
-        work= models.safe_get_work(isbn)
+            work = models.Work.objects.filter(featured__isnull=False).distinct().order_by('-featured')[0]
+        except:
+            #shouldn't occur except in tests
+            work = models.Work.objects.all()[0]
+    else :    
+        if len(isbn)==10:
+            isbn = regluit.core.isbn.convert_10_to_13(isbn)
+        if len(isbn)==13:
+            try:
+                identifier = models.Identifier.objects.get(type = 'isbn', value = isbn )
+                work = identifier.work
+            except models.Identifier.DoesNotExist:
+                return render_to_response('widget.html', 
+                     { 'work':None,}, 
+                     context_instance=RequestContext(request)
+                    )
+        else:
+            work= models.safe_get_work(isbn)
     return render_to_response('widget.html', 
          {'work':work, }, 
          context_instance=RequestContext(request)