null language filtering for claim search

lbry/wallet/server/db/common.py

@@ -231,6 +231,7 @@ COMMON_TAGS = {
 }
 
 INDEXED_LANGUAGES = [
+  'none',
   'en',
   'aa',
   'ab',

lbry/wallet/server/db/writer.py

@@ -330,7 +330,7 @@ class SQLDB:
                 #self.logger.exception(f"Could not decode claim name for {tx.id}:{txo.position}.")
                 continue
 
-            language = None
+            language = 'none'
             try:
                 if txo.claim.is_stream and txo.claim.stream.languages:
                     language = txo.claim.stream.languages[0].language
@@ -394,7 +394,6 @@ class SQLDB:
             elif claim.is_channel:
                 claim_record['claim_type'] = CLAIM_TYPES['channel']
 
-            if language:
             languages[(language, claim_hash)] = (language, claim_hash, tx.height)
 
             for tag in clean_tags(claim.message.tags):

tests/integration/blockchain/test_claim_commands.py

@@ -271,6 +271,8 @@ class ClaimSearchCommand(ClaimTestCase):
         claim5 = await self.stream_create('claim5', fee_amount='1.0', fee_currency='usd', languages='es')
 
         await self.assertFindsClaims([claim4, claim3], any_languages=['en'])
+        await self.assertFindsClaims([claim2, claim1], any_languages=['none'])
+        await self.assertFindsClaims([claim4, claim3, claim2, claim1], any_languages=['none', 'en'])
         await self.assertFindsClaims([claim5], any_languages=['es'])
         await self.assertFindsClaims([claim5, claim4, claim3], any_languages=['en', 'es'])
         await self.assertFindsClaims([], fee_currency='foo')