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https://issues.apache.org/jira/browse/COUCHDB-2204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13940476#comment-13940476
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Benoit Chesneau commented on COUCHDB-2204:
------------------------------------------
This error is expected. How the rewriter could know that a specific parameter
can be encoded to json or something else?
For now only views parameter can be encoded. A specific rules cn eventually
been added to the format properties if this is something wanted. So the full
rewrite rule would be:
{code}
{
"from": "server_lib/:~name",
"to": "_list/sub/design",
"query": {
"path": ["lib", ":~name" ]
},
"formats": { "path": "json" }
}
{code}
Would it works for you?
> rewrite of lists fail when not for key
> --------------------------------------
>
> Key: COUCHDB-2204
> URL: https://issues.apache.org/jira/browse/COUCHDB-2204
> Project: CouchDB
> Issue Type: Bug
> Security Level: public(Regular issues)
> Components: HTTP Interface
> Reporter: richard delorenzi
>
> I have the following fragment in rewrite.json,
> {code:javascript|title=this rewrite.json does not work}
> {
> "from": "server_lib/:~name",
> "to": "_list/sub/design",
> "query": {
> "path": ["lib", ":~name" ]
> }
> }
> {code}
> when I try to fetch the page with
> {code: title=http get}
> curl -s -D /dev/stderr -H "Accept: application/json"
> 'http://localhost:5984/q-couch-test/_design/couch-experiment/_rewrite/server_lib/myLib'
> {code}
> I get this error
> {code: title=error}
> log error:
> [Tue, 18 Mar 2014 09:54:31 GMT] [info] [<0.5037.0>] Stacktrace:
> [{erlang,iolist_to_binary,
> [[<<"myLib">>,{[]}]],
> []},
> {couch_httpd_rewrite,
> '-maybe_encode_bindings/1-fun-0-',2,
> [{file,"couch_httpd_rewrite.erl"},
> {line,453}]},
> {lists,foldl,3,
> [{file,"lists.erl"},{line,1197}]},
> {couch_httpd_rewrite,handle_rewrite_req,3,
> [{file,"couch_httpd_rewrite.erl"},
> {line,147}]},
> {couch_httpd_db,do_db_req,2,
>
> [{file,"couch_httpd_db.erl"},{line,230}]},
> {couch_httpd,handle_request_int,5,
> [{file,"couch_httpd.erl"},{line,317}]},
> {mochiweb_http,headers,5,
> [{file,"mochiweb_http.erl"},{line,136}]},
> {proc_lib,init_p_do_apply,3,
> [{file,"proc_lib.erl"},{line,227}]}]
> {code}
> The bug seems to be in couch_httpd_rewrite.erl in maybe_json. It treats keys
> specially, so we can represent keys as lists but not other query strings.
> e.g. this rewrite fragment works
> {code: javascript|title=working rewrite.json example}
> {
> "from": "view/by_name/:~type",
> "to": "_view/all-by-name",
> "query": {
> "startkey": [ ":~type", null ],
> "endkey": [ ":~type", {} ]
> }
> }
> {code}
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