Added /works/OL123W/editions.json API

openlibrary/plugins/openlibrary/api.py

@@ -0,0 +1,51 @@
+"""API stuff."""
+import web
+import simplejson
+
+from infogami.utils import delegate
+from openlibrary.core import helpers as h
+
+def setup():
+    # placeholder
+    pass
+
+class work_editions(delegate.page):
+    path = "(/works/OL\d+W)/editions"
+    encoding = "json"
+
+    def GET(self, key):
+        doc = web.ctx.site.get(key)
+        if not doc or doc.type.key != "/type/work":
+            raise web.notfound('')
+        else:
+            i = web.input(limit=50, offset=0)
+            limit = h.safeint(i.limit) or 50
+            offset = h.safeint(i.offset) or 0
+
+            data = self.get_editions_data(doc, limit=limit, offset=offset)
+            return delegate.RawText(simplejson.dumps(data), content_type="applicaiton/json")
+
+    def get_editions_data(self, work, limit, offset):
+        if limit > 1000:
+            limit = 1000
+
+        keys = web.ctx.site.things({"type": "/type/edition", "works": work.key, "limit": limit, "offset": offset})
+        editions = web.ctx.site.get_many(keys, raw=True)
+
+        size = work.edition_count
+        links = {
+            "self": web.ctx.fullpath,
+            "work": work.key,
+        }
+
+        if offset > 0:
+            links['prev'] = web.changequery(offset=min(0, offset-limit))
+
+        if offset + len(editions) < size:
+            links['next'] = web.changequery(offset=offset+limit)
+
+        return {
+            "links": links
+            "size": size,
+            "entries": editions
+        }

openlibrary/plugins/openlibrary/code.py

@@ -779,6 +779,9 @@ def setup():
     events.setup()
     status.setup()
 
+    import api
+    api.setup()
+
     from stats import stats_hook
     delegate.app.add_processor(web.unloadhook(stats_hook))