Fix some null checks, and add a unique Queue.search filter

api/dao/containerutil.py

@@ -8,12 +8,14 @@ from ..auth import has_access
 
 CONT_TYPES = ['acquisition', 'analysis', 'collection', 'group', 'project', 'session']
 SINGULAR_TO_PLURAL = {
+    'acquisition': 'acquisitions',
+    'analysis':    'analyses',
+    'collection':  'collections',
+    'device':      'device',
     'group':       'groups',
+    'job':         'job',
     'project':     'projects',
     'session':     'sessions',
-    'acquisition': 'acquisitions',
-    'collection':  'collections',
-    'analysis':    'analyses',
 }
 PLURAL_TO_SINGULAR = {p: s for s, p in SINGULAR_TO_PLURAL.iteritems()}
 

api/handlers/containerhandler.py

@@ -162,10 +162,11 @@ class ContainerHandler(base.RequestHandler):
                 # Join from database if we haven't for this origin before
                 if j_type != 'unknown' and result['join-origin'][j_type].get(j_id, None) is None:
                     # Initial join
-                    join_doc = config.db[j_type + 's'].find_one({'_id': j_id_b})
+                    j_types = containerutil.pluralize(j_type)
+                    join_doc = config.db[j_types].find_one({'_id': j_id_b})
 
                     # Join in gear name on the job doc if requested
-                    if join_gear_name and j_type == 'job':
+                    if join_doc is not None and join_gear_name and j_type == 'job':
 
                         gear_id = join_doc['gear_id']
                         gear_name = None
@@ -267,6 +268,16 @@ class ContainerHandler(base.RequestHandler):
             cont_array = [containerutil.ContainerReference('analysis', cid) for cid in id_array]
             results += Queue.search(cont_array, states=states, tags=tags)
 
+        # Stateful closure to remove search duplicates
+        # Eventually, this code should not call Queue.search and should instead do its own work.
+        def match_ids(x):
+            should_add = str(x['_id']) in match_ids.unique_job_ids
+            match_ids.unique_job_ids.add(str(x['_id']))
+            return should_add
+
+        match_ids.unique_job_ids = set()
+        results = filter(lambda x: match_ids(x), results)
+
         # Ensure job uniqueness
         seen_jobs = []
         seen_gears = []