First naive pass at creating a IsbnResource

api/models.py

@@ -1,9 +1,16 @@
 from django.contrib.auth.models import User
+from django.db.models import Q
+
 from regluit.core import models
 
-from tastypie.resources import ModelResource
+from tastypie.resources import ModelResource, Resource, Bundle
 from tastypie import fields
 
+import logging
+
+# Get an instance of a specific named logger
+logger = logging.getLogger(__name__)
+
 class UserResource(ModelResource):
     class Meta:
         queryset = User.objects.all()
@@ -51,4 +58,96 @@ class WishlistResource(ModelResource):
     works = fields.ToManyField(WorkResource, 'works')
     class Meta:
         queryset = models.Wishlist.objects.all()
-        resource_name = 'wishlist'
+        resource_name = 'wishlist'
+
+# http://django-tastypie.readthedocs.org/en/latest/non_orm_data_sources.html
+
+def get_all_isbn():
+    # need to deal with isbn-13 too
+    return [e.isbn_10 for e in models.Edition.objects.all() if e.isbn_10 is not None]
+
+class IsbnObject(object):
+    def __init__(self, initial=None):
+        self.__dict__['_data'] = {}
+
+        if hasattr(initial, 'items'):
+            self.__dict__['_data'] = initial
+
+    def __getattr__(self, name):
+        return self._data.get(name, None)
+
+    def __setattr__(self, name, value):
+        self.__dict__['_data'][name] = value
+
+    def to_dict(self):
+        return self._data
+
+class IsbnResource(Resource):
+    
+    isbn_10 = fields.CharField(attribute='isbn_10')
+    title = fields.CharField(attribute='title')
+    edition_id = fields.CharField(attribute='edition_id')
+
+    class Meta:
+        resource_name = 'isbn'
+        object_class = IsbnObject
+
+    # The following methods will need overriding regardless of your
+    # data source.
+    def get_resource_uri(self, bundle_or_obj):
+        """
+        Handles generating a resource URI for a single resource.
+
+        Uses the model's ``pk`` in order to create the URI.
+        """
+        kwargs = {
+            'resource_name': self._meta.resource_name,
+        }
+
+        if isinstance(bundle_or_obj, Bundle):
+            kwargs['pk'] = bundle_or_obj.obj.isbn_10
+        else:
+            kwargs['pk'] = bundle_or_obj.isbn_10
+
+        if self._meta.api_name is not None:
+            kwargs['api_name'] = self._meta.api_name
+
+        return self._build_reverse_url("api_dispatch_detail", kwargs=kwargs)
+
+    def get_object_list(self, request):
+        """
+        A hook to allow making returning the list of available objects.
+
+        This needs to be implemented at the user level.
+
+        ``ModelResource`` includes a full working version specific to Django's
+        ``Models``.
+        """
+        results = []
+        isbns = get_all_isbn()
+        logger.info("isbn_10: %s" % (isbns))
+        for isbn in isbns:
+            editions = models.Edition.objects.filter(isbn_10=isbn)
+            new_obj = IsbnObject()
+            new_obj.isbn_10 = isbn
+            new_obj.title = editions[0].title
+            new_obj.edition_id = editions[0].id
+            results.append(new_obj)
+        logger.info("results: %s" % ([r.editions for r in results]))
+        return results
+
+    def obj_get_list(self, request=None, **kwargs):
+        # Filtering disabled for brevity...
+        return self.get_object_list(request)
+
+    def obj_get(self, request=None, **kwargs):
+        isbn = kwargs['pk']
+        editions = models.Edition.objects.filter(isbn_10=isbn)
+        new_obj = IsbnObject()
+        new_obj.isbn_10 = isbn
+        new_obj.title = editions[0].title
+        new_obj.edition_id = editions[0].id        
+        return new_obj      
+        
+
+    

api/urls.py

@@ -2,6 +2,7 @@ from django.conf.urls.defaults import *
 from tastypie.api import Api
 
 from regluit.api.models import UserResource, WorkResource, EditionResource, CampaignResource, AuthorResource, SubjectResource, EditionCoverResource, WishlistResource
+from regluit.api.models import IsbnResource
 
 v1_api = Api(api_name='v1')  # how set api_name to None so that we don't get URIs like /api/v1 but more like /api/ Don't think there is a way...
 v1_api.register(UserResource())
@@ -12,6 +13,7 @@ v1_api.register(CampaignResource())
 v1_api.register(AuthorResource())
 v1_api.register(SubjectResource())
 v1_api.register(WishlistResource())
+v1_api.register(IsbnResource())
 
 urlpatterns = patterns('',
     url(r'^editions/$', 'regluit.api.views.editions', name="editions"),