Search: Fix restrict_sr for domains listings and AllMinus

For domains listings, it was possible to have results from the wrong domain be included.  Switching to a phrase search fixes that.  See https://redd.it/5ew4ve for more info about, and caveats of, this method.

For AllMinus, see https://redd.it/5eqiyy for the general context.  This does not need to be explicitly handled for ModMinus, as ModMinus excludes the filtered subreddits from its sr_ids property.  Additionally, ModMinus doesn't need special handling since it inherits the already-handled MultiReddit.

r2/r2/lib/providers/search/cloudsearch.py

@@ -51,6 +51,7 @@
 import r2.lib.utils as r2utils
 from r2.models import (
     Account,
+    AllMinus,
     DomainSR,
     FakeSubreddit,
     FriendsSR,
@@ -751,7 +752,7 @@ def _restrict_recent(recent):
     @staticmethod
     def _restrict_sr(sr):
         '''Return a cloudsearch appropriate query string that restricts
-        results to only contain results from self.sr
+        results to only contain results from sr
         
         '''
         if isinstance(sr, MultiReddit):
@@ -760,7 +761,7 @@ def _restrict_sr(sr):
             srs = ["sr_id:%s" % sr_id for sr_id in sr.sr_ids]
             return "(or %s)" % ' '.join(srs)
         elif isinstance(sr, DomainSR):
-            return "site:'%s'" % sr.domain
+            return "site:'\"%s\"'" % sr.domain
         elif isinstance(sr, FriendsSR):
             if not c.user_is_loggedin or not c.user.friends:
                 raise InvalidQuery
@@ -771,6 +772,11 @@ def _restrict_sr(sr):
                        Account._fullname_from_id36(r2utils.to36(id_))
                        for id_ in friend_ids]
             return "(or %s)" % ' '.join(friends)
+        elif isinstance(sr, AllMinus):
+            if not sr.exclude_sr_ids:
+                raise InvalidQuery
+            exclude_srs = ["sr_id:%s" % sr_id for sr_id in sr.exclude_sr_ids]
+            return "(not (or %s))" % ' '.join(exclude_srs)
         elif not isinstance(sr, FakeSubreddit):
             return "sr_id:%s" % sr._id
 

r2/r2/lib/providers/search/solr.py

@@ -52,12 +52,12 @@
 from r2.models import (
         Account, 
         All, 
+        AllMinus,
         DefaultSR,
         DomainSR, 
         FakeSubreddit, 
         Friends, 
         Link, 
-        ModContribSR,
         MultiReddit, 
         NotFound,
         Subreddit, 
@@ -337,7 +337,7 @@ def _restrict_recent(recent):
     @staticmethod
     def _get_sr_restriction(sr):
         '''Return a solr-appropriate query string that restricts
-        results to only contain results from self.sr
+        results to only contain results from sr
         
         '''
         bq = []
@@ -356,9 +356,9 @@ def _get_sr_restriction(sr):
                        Account._fullname_from_id36(r2utils.to36(id_))
                        for id_ in friend_ids]
             bq.extend(friends)
-        elif isinstance(sr, ModContribSR):
-            for sr_id in sr.sr_ids:
-                bq.append("sr_id:%s" % sr_id)
+        elif isinstance(sr, AllMinus):
+            for sr_id in sr.exclude_sr_ids:
+                bq.append("-sr_id:%s" % sr_id)
         elif not isinstance(sr, FakeSubreddit):
             bq = ["sr_id:%s" % sr._id]
         return ' OR '.join(bq)