"no such cmd: insert"

[peffis]

Hi,

With version 3.3 (I suppose current master) I cannot insert documents (your tests are also failing). It works neither with maps nor with bson documents. See below.

/Stefan

1> Database = <<"test">>.
<<"test">>

2>  {ok, Connection} = mc_worker_api:connect ([{database, Database}]).
{ok,<0.107.0>}

3> mc_worker_api:insert(Connection, <<"test">>, #{<<"_id">> => <<"123">>, <<"name">> => <<"Stefan">>}).
{{false,#{<<"bad cmd">> => #{<<"documents">> => [#{<<"_id">> => <<"123">>,<<"name">> => <<"Stefan">>}],
            <<"insert">> => <<"test">>},
          <<"errmsg">> => <<"no such cmd: insert">>}},
 #{<<"_id">> => <<"123">>,<<"name">> => <<"Stefan">>}}

4> mc_worker_api:insert(Connection, <<"test">>, [{<<"_id">>, <<"123">>, <<"name">>, <<"Stefan">>}]).   
{{false,#{<<"bad cmd">> => #{<<"documents">> => [#{<<"_id">> => <<"123">>,<<"name">> => <<"Stefan">>}],
            <<"insert">> => <<"test">>},
          <<"errmsg">> => <<"no such cmd: insert">>}},
 [{<<"_id">>,<<"123">>,<<"name">>,<<"Stefan">>}]}

5> 

[henryj]

I assume you're using mongodb < 2.6? If so you may try my fork which works and pending merge.
https://github.com/henryj/mongodb-erlang
#103

Do remember put something like {mongodb, [{version, 2.4}]} in your config/env tho.

[peffis]

Yes, this deployment is a Ubuntu 14.04 LTS so it has version 2.4.9 of mongodb-server. I was not aware that the mongo protocol had changed in later releases but I think it is good that there is a pull-request to support the legacy versions.

My problem was also though that the erlang service release had specified the dependency to the mongodb-erlang as using "master" which unfortunately also broke it as it was using the api module "mongo" rather than mc_worker_api module. So unfortunately my solution was to change the dependency to mongodb-erlang to version v0.7.4 to make it build which seems to work with this older mongodb version (and still has the mongo module). I hope the PR for legacy systems will pass until I have the time to update the service :)

Feel free to close this issue...