c# - Neo4jClient Cypher query collect statement with multiple values -

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i'm trying convert query cypher use neo4jclient api in c#

here cypher

start server=node:node_auto_index(serverid='sho2k3ms49') match   server-[:is_server_type]->type,  appenv-[:has_server]->server,  app-[:has_env]->appenv return            server.serverid,    collect([    appenv.environmenttypeid,    appenv.appenvid,    app.appid,    app.appname   ]) ;

the query returns 1 line per server , collects applications on server.

the .collectas api far can see allows single values.

an idea how .net api?

edit

i've tried query

_connectedclient  .cypher                   .start(new {server = node.byindexlookup("node_auto_index", "serverid", "sho2k3ms49") })  .match("server-[:is_server_type]->type", "appenv-[:has_server]->server", "app-[:has_env]->appenv")                 .return((server, appenv, app) =>    new    {        servername = return.as<string>("server.serverid"),             aa = return.as<dynamic>    ("collect([appenv.environmenttypeid,appenv.appenvid,app.appid,app.appname])")                                                                                                                              })  .results;

and received result.

stacktrace

at neo4jclient.serialization.cypherjsondeserializer`1.deserialize(string content)    @ neo4jclient.graphclient.<>c__displayclass1e`1.<neo4jclient.irawgraphclient.executegetcypherresultsasync>b__1d(task`1 responsetask)    @ system.threading.tasks.continuationresulttaskfromresulttask`2.innerinvoke()    @ system.threading.tasks.task.execute()

innerexception

accessed jarray values invalid key value: "data". array position index expected

message -- removed boilerplate text brevity

neo4jclient encountered exception while deserializing response server. bug in neo4jclient.  include full type definition of <>f__anonymoustype1`2[[system.string, mscorlib, version=4.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089],[system.object, mscorlib, version=4.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089]].  include raw json, sensitive values replaced non-sensitive equivalents:  {"columns":["servername","aa"],"data":[["sho2k3ms49",[["prd","matt.prd","matt","matt"],["prd","arcserv.prd","arcserv","arcserv"],["prd","active directory _windows server networking_.prd","active directory _windows server networking_","active directory (windows server networking)"]]]]} parameter name: content

it's because results bring collect statement strings no defining columns. json.net can't infer columns (and can't use as it), strings like:

"[\r\n"envtype1",\r\n"appenvid1",\r\n"app2",\r\n"app 2"\r\n]"

which can using following query:

_connectedclient     .cypher                      .start(new {server = node.byindexlookup("node_auto_index", "serverid", "sho2k3ms49") })     .match("server-[:is_server_type]->type", "appenv-[:has_server]->server", "app-[:has_env]->appenv")                     .return((server, appenv, app) =>        new        {            servername = return.as<string>("server.serverid"),                 aa = return.as<ienumerable<string>>("collect([appenv.environmenttypeid,appenv.appenvid,app.appid,app.appname])")                                                                                                                                  })      .results;

i've changed return type aa property ienumerable<string>.

another route use groupby after getting data:

var query2 = graphclient     .cypher     .start(new { server = new nodereference(1) })     .match("server-[:is_server_type]->type", "appenv-[:has_server]->server", "app-[:has_env]->appenv")     .return((server, appenv, app) =>         new         {             serverid = return.as<string>("server.serverid"),             environmenttypeid = return.as<string>("appenv.environmenttypeid"),             appenvid = return.as<string>("appenv.appenvid"),             appid = return.as<string>("app.appid"),             appname = return.as<string>("app.appname"),         });  var results2 = query2.results.groupby(g => g.serverid).tolist();

which think give results in way want them, guess @ issue here whether it's more performant collect on server, or groupby on client...


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