[GitHub] janl commented on issue #1425: Add `conflicts: true` option to mango selectors

[GitBox]

janl commented on issue #1425: Add `conflicts: true` option to mango selectors
URL: https://github.com/apache/couchdb/pull/1425#issuecomment-403289254
 
 
   script to repro:
   
   ```
   #!/bin/sh -ex
   S=http://a:a@127.0.0.1:15984
   DB=x1101
   
   # delete test db
   curl -X DELETE $S/$DB
   
   # create test d
   curl -X PUT $S/$DB
   
   # create doc
   
   curl -X PUT $S/$DB/doc -d '{"a":2}'
   
   # create conflict
   curl -X PUT $S/$DB/doc?new_edits=false -d 
'{"a":1,"_rev":"1-23202479633c2b380f79507a776743d5"}'
   
   # validate we have created a conflict:
   curl $S/$DB/doc?conflicts=true
   
   # create mango index def
   curl -X POST $S/$DB/_index -d '{"index":{"fields": ["_conflicts"]}}' 
-Hcontent-type:application/json
   
   # query mango index
   curl -X POST $S/$DB/_find -d '{"selector": {"_conflicts": { "$exists": 
true}},"conflicts":true}' -Hcontent-type:application/json
   
   # query mango index without conflicts option
   curl -X POST $S/$DB/_find -d '{"selector": {"_conflicts": { "$exists": 
true}}}' -Hcontent-type:application/json
   ```
   
   Successful run:
   
   ```
    ~/t.sh
   + S=http://a:a@127.0.0.1:15984
   + DB=x1101
   + curl -X DELETE http://a:a@127.0.0.1:15984/x1101
   {"ok":true}
   + curl -X PUT http://a:a@127.0.0.1:15984/x1101
   {"ok":true}
   + curl -X PUT http://a:a@127.0.0.1:15984/x1101/doc -d '{"a":2}'
   {"ok":true,"id":"doc","rev":"1-3975759ccff3842adf690a5c10caee42"}
   + curl -X PUT 'http://a:a@127.0.0.1:15984/x1101/doc?new_edits=false' -d 
'{"a":1,"_rev":"1-23202479633c2b380f79507a776743d5"}'
   {"ok":true,"id":"doc","rev":"1-23202479633c2b380f79507a776743d5"}
   + curl 'http://a:a@127.0.0.1:15984/x1101/doc?conflicts=true'
   
{"_id":"doc","_rev":"1-3975759ccff3842adf690a5c10caee42","a":2,"_conflicts":["1-23202479633c2b380f79507a776743d5"]}
   + curl -X POST http://a:a@127.0.0.1:15984/x1101/_index -d 
'{"index":{"fields": ["_conflicts"]}}' -Hcontent-type:application/json
   
{"result":"created","id":"_design/42ac6b715ea8fb5be44a74e6cf515eaa334238d6","name":"42ac6b715ea8fb5be44a74e6cf515eaa334238d6"}
   + curl -X POST http://a:a@127.0.0.1:15984/x1101/_find -d '{"selector": 
{"_conflicts": { "$exists": true}},"conflicts":true}' 
-Hcontent-type:application/json
   {"docs":[
   
{"_id":"doc","_rev":"1-3975759ccff3842adf690a5c10caee42","a":2,"_conflicts":["1-23202479633c2b380f79507a776743d5"]}
   ],
   "bookmark": 
"g1AAAABheJzLYWBgYMpgSmHgKy5JLCrJTq2MT8lPzkzJBYozA1kgKQ6YVA5QkBFMgKSVDHWNjI0MjEzMLc2MjZONkowtDNLMLU0NzBPNzc3MTYxTTLOysgCY2ReV"}
   
   + curl -X POST http://a:a@127.0.0.1:15984/x1101/_find -d '{"selector": 
{"_conflicts": { "$exists": true}}}' -Hcontent-type:application/json
   {"docs":[
   ],
   "bookmark": "nil"}
   ```
   

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