Sebastian Rothbucher sebastianrothbucher

Take the following simple CouchDB named test:

{"total_rows":2,"offset":0,"rows":[
{"id":"_design/tst","key":"_design/tst","value":{"rev":"3-312aaf2d14174ef415d185d460f4380a"},"doc":{"_id":"_design/tst","_rev":"3-312aaf2d14174ef415d185d460f4380a","shows":{"own":"function(doc, req){return this.configval+\" - \"+doc.docval;}"},"configval":"bla"}},
{"id":"tst2","key":"tst2","value":{"rev":"2-2f1a6af53d8b871b677f79da8e0a2f45"},"doc":{"_id":"tst2","_rev":"2-2f1a6af53d8b871b677f79da8e0a2f45","docval":"blup"}}
]}

It consists of two docs: one tst2 (a normal doc with a value "docval") plus a design document "_design/tst" with a config value "configval" and a show function printing both config val and doc val.

Want do use Futon or Fauxton to manage web content? here is how you do that:

{
   "_id": "_design/showfkt",
   "_rev": "11-e00cd0ba76460fe57dd767e125e6a9c4",
   "language": "javascript",
   "shows": {
       "htmlout": "function(doc, req){return doc.html;}"
 }

couchjs is a process invoked by couchdb to do the actual evaluation (e.g. run a map function that is implemented in javascript). It's an own OS process called by the couchdb main process communicating via stdin / stdout.

Hence, one way of debugging is tee-ing input and output. This should work on all platforms. I've tried on Windows (7) now with

Couchdb in C:\Program Files (x86)\Apache Software Foundation\CouchDB (i.e. couchjs is C:\Program Files (x86)\Apache Software Foundation\CouchDB\bin\couchjs.exe)
a UNIX-Shell installed (makes sense anyway, curl gets madness otherwise) via MINGW32 coming with Git at C:\Program Files (x86)\Git\ (i.e. sh.exe is C:\Program Files (x86)\Git\bin\sh.exe and all other tools are in C:\Program Files (x86)\Git\bin\ also)
a globally writable C:\Temp

in default.ini (BACKUP REMINDER !!! - do a backup before you try the following!), one can now change the

[query_servers]

There was a talk at conc.at about mobile with nothing but the browser. I didn't make it to conc.at (shame!) but I do care about the topic. So: there is a way, just google for

<input type="file" capture="camera"

This is a small sample to get it going on CouchDB - really hacky.

Steps (at your own risk - make sure you know what's going on!):

get CouchDB
make it listen to all clients (not just localhost) or use an Apache Webserver in front of it

A few tipps for migrating from Couch 1.6 (CentOS) to Couch 2.0 (CentOS)

as ever: your own risk ;-)

From plain source (incl. Fauxton et al)

make sure to have node and npm available (otherwise yum install nodejs)
Erlang installation is cruel (wx...; rpm -i --nodeps is your best friend)
erlang-solutions-1.0-1.noarch adds the repo of pre-compiled Erlang binaries
rebar (directly or via erlang-solutions) and reltool (also erlang-solutions):
the usual drill of ./configure && make && make install (./configure -c for test suite)

	The grunt invoke just gives "unable to read module" or something like it, one can get verbose error messages by invoking
	node_modules/react-tools/bin/jsx --extension jsx app/addons/<name> app/addons/<name>
	(src dir = target dir). For instance, when a problem happens in module databases:
	node_modules/react-tools/bin/jsx --extension jsx app/addons/databases app/addons/databases
	=> helps spotting the error rather quickly, afterwards one can move on with grunt dev or so

	Some hacks to demonstrate _changes

	1-3: display an MsgBox for each change (with more content)
	4: Write to the Windows Event Log on each change
	5: Create an asana task on each change

	<html>
	<a href="data:text/plain;base64,SGV5IHRoZXJl" download="heythere.txt">Click to download</a>
	</html>

	Konzepte: Ctrl+F, "entsprechend" und "bisher"
	Code: import Framework-Klasse im Presenter, static get...()