use 'id' for checkpoint ID key

rather than redundant checkpoint.checkpoint_id

IPython/html/services/notebooks/filenbmanager.py

@@ -278,7 +278,7 b' class FileNotebookManager(NotebookManager):'
         
         # clear checkpoints
         for checkpoint in self.list_checkpoints(name, path):
-            checkpoint_id = checkpoint['checkpoint_id']
+            checkpoint_id = checkpoint['id']
             cp_path = self.get_checkpoint_path(checkpoint_id, name, path)
             if os.path.isfile(cp_path):
                 self.log.debug("Unlinking checkpoint %s", cp_path)
@@ -315,7 +315,7 b' class FileNotebookManager(NotebookManager):'
         # Move the checkpoints
         old_checkpoints = self.list_checkpoints(old_name, old_path)
         for cp in old_checkpoints:
-            checkpoint_id = cp['checkpoint_id']
+            checkpoint_id = cp['id']
             old_cp_path = self.get_checkpoint_path(checkpoint_id, old_name, old_path)
             new_cp_path = self.get_checkpoint_path(checkpoint_id, new_name, new_path)
             if os.path.isfile(old_cp_path):
@@ -346,7 +346,7 b' class FileNotebookManager(NotebookManager):'
         stats = os.stat(cp_path)
         last_modified = tz.utcfromtimestamp(stats.st_mtime)
         info = dict(
-            checkpoint_id = checkpoint_id,
+            id = checkpoint_id,
             last_modified = last_modified,
         )
         return info

IPython/html/services/notebooks/handlers.py

@@ -180,9 +180,9 b' class NotebookCheckpointsHandler(IPythonHandler):'
         nbm = self.notebook_manager
         checkpoint = nbm.create_checkpoint(name, path)
         data = json.dumps(checkpoint, default=date_default)
-        location = url_path_join(self.base_project_url, u'/api/notebooks',
-            path, name, 'checkpoints', checkpoint[u'checkpoint_id'])
-        self.set_header(u'Location', location)
+        location = url_path_join(self.base_project_url, 'api/notebooks',
+            path, name, 'checkpoints', checkpoint['id'])
+        self.set_header('Location', location)
         self.set_status(201)
         self.finish(data)
 

IPython/html/services/notebooks/tests/test_notebooks_api.py

@@ -229,8 +229,8 b' class APITest(NotebookTestBase):'
         r = self.nb_api.new_checkpoint('a.ipynb', 'foo')
         self.assertEqual(r.status_code, 201)
         cp1 = r.json()
-        self.assertEqual(set(cp1), {'checkpoint_id', 'last_modified'})
-        self.assertEqual(r.headers['Location'].split('/')[-1], cp1['checkpoint_id'])
+        self.assertEqual(set(cp1), {'id', 'last_modified'})
+        self.assertEqual(r.headers['Location'].split('/')[-1], cp1['id'])
 
         # Modify it
         nbcontent = jsonapi.loads(resp.text)['content']
@@ -252,14 +252,14 b' class APITest(NotebookTestBase):'
         self.assertEqual(nb.worksheets[0].cells[0].source, 'Created by test')
 
         # Restore cp1
-        r = self.nb_api.restore_checkpoint('a.ipynb', 'foo', cp1['checkpoint_id'])
+        r = self.nb_api.restore_checkpoint('a.ipynb', 'foo', cp1['id'])
         self.assertEqual(r.status_code, 204)
         nbcontent = self.nb_api.read('a.ipynb', 'foo').json()['content']
         nb = to_notebook_json(nbcontent)
         self.assertEqual(nb.worksheets, [])
 
         # Delete cp1
-        r = self.nb_api.delete_checkpoint('a.ipynb', 'foo', cp1['checkpoint_id'])
+        r = self.nb_api.delete_checkpoint('a.ipynb', 'foo', cp1['id'])
         self.assertEqual(r.status_code, 204)
         cps = self.nb_api.get_checkpoints('a.ipynb', 'foo').json()
         self.assertEqual(cps, [])

IPython/html/static/notebook/js/notebook.js

@@ -2009,7 +2009,7 b' var IPython = (function (IPython) {'
         var found = false;
         for (var i = 0; i < this.checkpoints.length; i++) {
             var existing = this.checkpoints[i];
-            if (existing.checkpoint_id == checkpoint.checkpoint_id) {
+            if (existing.id == checkpoint.id) {
                 found = true;
                 this.checkpoints[i] = checkpoint;
                 break;
@@ -2149,7 +2149,7 b' var IPython = (function (IPython) {'
                 Revert : {
                     class : "btn-danger",
                     click : function () {
-                        that.restore_checkpoint(checkpoint.checkpoint_id);
+                        that.restore_checkpoint(checkpoint.id);
                     }
                 },
                 Cancel : {}