[COUCHDB-1202] Function 'require' undefined in reduce functions, cannot require CommonJS module

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.1
• Component/s: JavaScript View Server
• Labels: commonjs reduce views

Environment

Mac OS X 10.6.8, CouchDB 1.1.0 (homebrew), Erlang R14B03

• Skill Level: Regular Contributors Level (Easy to Medium)
• Assignee: Unassigned
• Reporter: Gabor Ratky
• Created: 27/Jun/11 17:18
• Updated: 02/Sep/18 06:33
• Resolved: 02/Sep/18 06:33

Description

CouchDB 1.1.0 views can require CommonJS modules according to the Modules 1.1.1 specification when defined in the design document under "views/lib". In CouchDB 1.1.0 this works in map functions, but the "require" is undefined in reduce functions. See the shell transcript along with the design document and log output. Also available at [1].

ddoc.json:
{
"views": {
"lib":

{ "foo": "exports.bar = 42;" }

,
"test": {
"map": "function(doc)

{ emit(doc._id, require('views/lib/foo').bar); }

",
"reduce": "function (keys, values, rereduce)

{ return require('views/lib/foo').bar; }

"
}
}
}

require_test.sh:

$ curl http://localhost:5984

{"couchdb":"Welcome","version":"1.1.0"}

$ curl -X PUT http://localhost:5984/reduce_test

{"ok":true}

$ curl -X PUT http://localhost:5984/reduce_test/_design/test --data @ddoc.json

{"ok":true,"id":"_design/test","rev":"1-5a587aeb82027657db334265037a4692"}

$ curl -X POST http://localhost:5984/reduce_test -H "Content-Type: application/json" -d '{}'

{"ok":true,"id":"cd5869297d813d45d3e9f8016f001834","rev":"1-967a00dff5e02add41819138abb3284d"}

$ curl "http://localhost:5984/reduce_test/_design/test/_view/test?reduce=false"

{"total_rows":1,"offset":0,"rows":[ {"id":"cd5869297d813d45d3e9f8016f001834","key":"cd5869297d813d45d3e9f8016f001834","value":42}

]}

$ curl "http://localhost:5984/reduce_test/_design/test/_view/test"

{"rows":[ {"key":null,"value":null}

]}

^^^ Expected

{"key":null,"value":42}

couch.log:

[info] [<0.313.0>] OS Process #Port<0.2368> Log :: function raised exception (new ReferenceError("require is not defined", ""))
[info] [<0.14096.0>] 127.0.0.1 - - 'GET' /reduce_test/_design/test/_view/test 200

[1] https://gist.github.com/1049231