Neo4j+；Neography批量导入=输入字符串的BadInputException:\"；{0}\"&引用；

平台：

• Neo4j-图形数据库内核2.0.0-M03（服务器）
• jruby 1.7.4（1.9.3p392）2013-05-16基于Java HotSpot（TM）64位服务器VM 1.7.0_25-b15[linux-amd64]
• 用于与neo4j REST api交互作用的neography（1.1.1）

我有一系列产品节点，索引目录号属性已经存储在neo4j中，我正试图批量插入这些产品的子产品/变体SKU，其关系为SKU->父产品目录号

我有以下代码：

#items is an array of skus

items.each do |item|
    commands = []

    #get the node we want to create a relationship to
    commands << [:get_node_index, PRODUCT_CATALOG_INDEX, :catalog_number, item[:catalog_number]]
    commands << [:create_node, {sku: item[:sku]}]
    commands << [:add_node_to_index, PRODUCT_SKU_INDEX, :sku, item[:itemnumber], '{1}']
    commands << [:create_relationship, "product_variation_of", '{1}', '{0}']

    @neo.batch *commands

end

很明显，我在这里做错了什么，但我似乎看不出是什么。我想知道：

[：获取节点索引，产品目录索引，：目录编号，项目[：目录编号]]

是否有问题，不允许节点引用{0}？我真的不确定

感谢您的帮助

完整堆栈跟踪，用替换为

\n

  E
, [2013-07-25T19:18:37.080000 #29182] ERROR -- : 400 error: [{"id"=>0
, "from"=>"/index/node/product_catalog_number/catalog_number/1234"
, "body"=>[{"extensions"=>{}
, "outgoing_relationships"=>"http://dev.local:7474/db/data/node/531/relationships/out"
, "labels"=>"http://dev.local:7474/db/data/node/531/labels"
, "all_typed_relationships"=>"http://dev.local:7474/db/data/node/531/relationships/all/{-list|&|types}"
, "traverse"=>"http://dev.local:7474/db/data/node/531/traverse/{returnType}"
, "self"=>"http://dev.local:7474/db/data/node/531"
, "property"=>"http://dev.local:7474/db/data/node/531/properties/{key}"
, "properties"=>"http://dev.local:7474/db/data/node/531/properties"
, "outgoing_typed_relationships"=>"http://dev.local:7474/db/data/node/531/relationships/out/{-list|&|types}"
, "incoming_relationships"=>"http://dev.local:7474/db/data/node/531/relationships/in"
, "create_relationship"=>"http://dev.local:7474/db/data/node/531/relationships"
, "paged_traverse"=>"http://dev.local:7474/db/data/node/531/paged/traverse/{returnType}{?pageSize
,leaseTime}"
, "all_relationships"=>"http://dev.local:7474/db/data/node/531/relationships/all"
, "incoming_typed_relationships"=>"http://dev.local:7474/db/data/node/531/relationships/in/{-list|&|types}"
, "data"=>{"title"=>"MY PRODUCT"
, "catalog_number"=>"1234"}
, "indexed"=>"http://dev.local:7474/db/data/index/node/product_catalog_number/catalog_number/1234/531"}]
, "status"=>200}
, {"id"=>1
, "from"=>"/node"
, "body"=>{"extensions"=>{}
, "outgoing_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/out"
, "labels"=>"http://dev.local:7474/db/data/node/1239/labels"
, "all_typed_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/all/{-list|&|types}"
, "traverse"=>"http://dev.local:7474/db/data/node/1239/traverse/{returnType}"
, "self"=>"http://dev.local:7474/db/data/node/1239"
, "property"=>"http://dev.local:7474/db/data/node/1239/properties/{key}"
, "properties"=>"http://dev.local:7474/db/data/node/1239/properties"
, "outgoing_typed_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/out/{-list|&|types}"
, "incoming_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/in"
, "create_relationship"=>"http://dev.local:7474/db/data/node/1239/relationships"
, "paged_traverse"=>"http://dev.local:7474/db/data/node/1239/paged/traverse/{returnType}{?pageSize
,leaseTime}"
, "all_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/all"
, "incoming_typed_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/in/{-list|&|types}"
, "data"=>{"sku"=>"0320442A5"}}
, "location"=>"http://dev.local:7474/db/data/node/1239"
, "status"=>201}
, {"id"=>2
, "from"=>"/index/node/product_sku"
, "body"=>{"extensions"=>{}
, "outgoing_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/out"
, "labels"=>"http://dev.local:7474/db/data/node/1239/labels"
, "all_typed_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/all/{-list|&|types}"
, "traverse"=>"http://dev.local:7474/db/data/node/1239/traverse/{returnType}"
, "self"=>"http://dev.local:7474/db/data/node/1239"
, "property"=>"http://dev.local:7474/db/data/node/1239/properties/{key}"
, "properties"=>"http://dev.local:7474/db/data/node/1239/properties"
, "outgoing_typed_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/out/{-list|&|types}"
, "incoming_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/in"
, "create_relationship"=>"http://dev.local:7474/db/data/node/1239/relationships"
, "paged_traverse"=>"http://dev.local:7474/db/data/node/1239/paged/traverse/{returnType}{?pageSize
,leaseTime}"
, "all_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/all"
, "incoming_typed_relationships"=>"http://dev.local:7474/db/data/node/1239/relationships/in/{-list|&|types}"
, "data"=>{"sku"=>"0320442A5"}
, "indexed"=>"http://dev.local:7474/db/data/index/node/product_sku/sku/0320442A5/1239"}
, "location"=>"http://dev.local:7474/db/data/index/node/product_sku/sku/0320442A5/1239"
, "status"=>201}
, {"id"=>3
, "from"=>"http://dev.local:7474/db/data/node/1239/relationships"
, "body"=>{"message"=>"For input string: \"{0}\""
, "exception"=>"BadInputException"
, "fullname"=>"org.neo4j.server.rest.repr.BadInputException"
, "stacktrace"=>["org.neo4j.server.rest.web.RestfulGraphDatabase.extractNodeId(RestfulGraphDatabase.java:199)"
, "org.neo4j.server.rest.web.RestfulGraphDatabase.createRelationship(RestfulGraphDatabase.java:564)"
, "java.lang.reflect.Method.invoke(Method.java:606)"
, "org.neo4j.server.rest.security.SecurityFilter.doFilter(SecurityFilter.java:112)"
, "org.neo4j.server.web.Jetty6WebServer.invokeDirectly(Jetty6WebServer.java:291)"
, "org.neo4j.server.rest.web.StreamingBatchOperations.invoke(StreamingBatchOperations.java:66)"
, "org.neo4j.server.rest.batch.BatchOperations.performRequest(BatchOperations.java:188)"
, "org.neo4j.server.rest.batch.BatchOperations.parseAndPerform(BatchOperations.java:159)"
, "org.neo4j.server.rest.web.StreamingBatchOperations.readAndExecuteOperations(StreamingBatchOperations.java:54)"
, "org.neo4j.server.rest.web.BatchOperationService$1.write(BatchOperationService.java:89)"
, "org.neo4j.server.rest.security.SecurityFilter.doFilter(SecurityFilter.java:112)"]
, "cause"=>{"message"=>"For input string: \"{0}\""
, "exception"=>"NumberFormatException"
, "fullname"=>"java.lang.NumberFormatException"
, "stacktrace"=>["java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)"
, "java.lang.Long.parseLong(Long.java:441)"
, "java.lang.Long.parseLong(Long.java:483)"
, "org.neo4j.server.rest.web.RestfulGraphDatabase.extractNodeId(RestfulGraphDatabase.java:195)"
, "org.neo4j.server.rest.web.RestfulGraphDatabase.createRelationship(RestfulGraphDatabase.java:564)"
, "java.lang.reflect.Method.invoke(Method.java:606)"
, "org.neo4j.server.rest.security.SecurityFilter.doFilter(SecurityFilter.java:112)"
, "org.neo4j.server.web.Jetty6WebServer.invokeDirectly(Jetty6WebServer.java:291)"
, "org.neo4j.server.rest.web.StreamingBatchOperations.invoke(StreamingBatchOperations.java:66)"
, "org.neo4j.server.rest.batch.BatchOperations.performRequest(BatchOperations.java:188)"
, "org.neo4j.server.rest.batch.BatchOperations.parseAndPerform(BatchOperations.java:159)"
, "org.neo4j.server.rest.web.StreamingBatchOperations.readAndExecuteOperations(StreamingBatchOperations.java:54)"
, "org.neo4j.server.rest.web.BatchOperationService$1.write(BatchOperationService.java:89)"
, "org.neo4j.server.rest.security.SecurityFilter.doFilter(SecurityFilter.java:112)"]}}
, "status"=>400}]

---

你说得对。不能将索引的结果用作单个节点引用，因为可以从该索引查找中获取集合。（假设你把名字编入索引，你得到所有的人都叫鲍勃，你得到10个……问题。）

---

因此，运行索引查询，从返回的数组中获取第一个节点id，然后将其作为正确的id传递给批处理。

您做对了。不能将索引的结果用作单个节点引用，因为可以从该索引查找中获取集合。（假设你把名字编入索引，你得到所有的人都叫鲍勃，你得到10个……问题。）

---

因此，运行索引查询，从返回的数组中获取第一个节点id，然后将其作为正确的id传递给批处理。

标识符

{0}

等现在只能引用位置头，这些位置头不是由index get命令设置的，因为它们可以返回任意数量的节点

AFAIK get或create命令设置正确的位置标题

POST http://localhost:7474/db/data/index/node/PRODUCT_CATALOG_INDEX?uniqueness=get_or_create \
{"key" : "catalog_number","value" : item[:catalog_number],\
 "properties" : {"catalog_number" : item[:catalog_number]}}

---

标识符

{0}

等现在只能引用位置头，这些位置头不是由index get命令设置的，因为它们可以返回任意数量的节点

AFAIK get或create命令设置正确的位置标题

POST http://localhost:7474/db/data/index/node/PRODUCT_CATALOG_INDEX?uniqueness=get_or_create \
{"key" : "catalog_number","value" : item[:catalog_number],\
 "properties" : {"catalog_number" : item[:catalog_number]}}

---

啊哈！由于

get\u node\u index

返回一个数组，因此它无法确定要使用哪个索引。首先获取ID，然后进行导入可能也会更快，因为这样会减少处理。非常感谢。这很有道理。啊哈！由于

get\u node\u index

返回一个数组，因此它无法确定要使用哪个索引。首先获取ID，然后进行导入可能也会更快，因为这样会减少处理。非常感谢。这很有道理。