Plone:collective.transmogrifier.sections.constructor 在导入时不写入对象

Question

我几乎成功地将 ZODB 的摘录(文件夹的一小部分，包括从其他文件夹中获取的资源)转移到另一个 Plone 实例；显示停止器是:在导入过程中，我的对象没有被写入。
这是我的导出脚本:

[transmogrifier]
pipeline =
    sitewalker
    xmlwalker
    uidextractor
    encapsulator
    manifestexporter
    fileexporter
    marshaller
    propertiesexporter
    commentsexporter
    datacorrector
    portletsexporter
    writer
    EXPORTING

[sitewalker]
blueprint = quintagroup.transmogrifier.sitewalker
path =
    folder1
    folder2

[xmlwalker]
blueprint = collective.transmogrifier.sections.xmlwalker

[uidextractor]
# my own section which parses the html text of the given fields,
# checks the href and src attributes for UIDs, and injects entries
# for the refered objects into the pipeline
blueprint = my.transmogrifier.uidextractor
inspect_fields =
    text
    description
    notes

[encapsulator]
blueprint = plone.app.transmogrifier.mimeencapsulator
mimetype = item/_mimetype
field = string:datafield

[manifestexporter]
blueprint = quintagroup.transmogrifier.manifestexporter

[fileexporter]
blueprint = quintagroup.transmogrifier.fileexporter

[marshaller]
blueprint = quintagroup.transmogrifier.marshaller

[propertiesexporter]
blueprint = quintagroup.transmogrifier.propertiesexporter

[commentsexporter]
blueprint = quintagroup.transmogrifier.commentsexporter

[datacorrector]
blueprint = quintagroup.transmogrifier.datacorrector
sources =
    marshall

[portletsexporter]
blueprint = quintagroup.transmogrifier.portletsexporter

[writer]
blueprint = quintagroup.transmogrifier.writer
context = directory
path = var/export/
prefix = structure

[EXPORTING]
blueprint = quintagroup.transmogrifier.logger
keys =
    _type
    _path

基于来自 quintagroup.transmogrifier 的默认导出和导入脚本，这是我的导入脚本:

[transmogrifier]
pipeline =
    reader
    pathfixer
    constructor
    schemaupdater
    datacorrector
    demarshaller
    uidupdater
    referencesimporter
    propertiesimporter
    commentsimporter
    portletsimporter
    printcounters
    IMPORTING

[reader]
blueprint = quintagroup.transmogrifier.reader
prefix = 
path = /path/to/var/export
context = directory
# unchanged entries I don't really understand:
.objects.xml = manifest
.marshall.xml = marshall
.properties.xml = propertymanager
.comments.xml = comments
.file-fields.xml = file-fields
.interfaces.xml = interfaces
.portlets.xml = portlets

[pathfixer]
blueprint = plone.app.transmogrifier.pathfixer
stripstring = Plone/
prependstring = 

[constructor]
blueprint = collective.transmogrifier.sections.constructor

[schemaupdater]
blueprint = plone.app.transmogrifier.atschemaupdater

[datacorrector]
blueprint = quintagroup.transmogrifier.datacorrector
type = import
sources =
    marshall

[fileimporter]
blueprint = quintagroup.transmogrifier.fileimporter

[demarshaller]
blueprint = quintagroup.transmogrifier.demarshaller

[uidupdater]
blueprint = plone.app.transmogrifier.uidupdater

[referencesimporter]
blueprint = quintagroup.transmogrifier.referencesimporter

[propertiesimporter]
blueprint = quintagroup.transmogrifier.propertiesimporter

[commentsimporter]
blueprint = quintagroup.transmogrifier.commentsimporter

[portletsimporter]
blueprint = quintagroup.transmogrifier.portletsimporter

[printcounters]
blueprint = collective.transmogrifier.sections.summary
count = true

[IMPORTING]
blueprint = quintagroup.transmogrifier.logger
keys = 
    _type
    _path

据我了解， reader来到 writer ; marshaller出现在 demarshaller ， 等等。
但是，在导入时，对象实际上并未写入
数据库。使用计数工具调整蓝图(在 add-info我的包叉的分支)，我得到了以下内容
概述:

Items summary
~~~~~~~~~~~~~
[reader]:
  created:   714
[pathfixer]:
  got:         714
  forwarded:   714
  stripped:    390
[constructor]:
  got:            714
  missing-type:   714
  missing-info:   714
  forwarded:      714
[datacorrector]:
  got:         714
  forwarded:   714
[fileimporter]:
  got:          31
  forwarded:    31
[demarshaller]:
  got:          31
  forwarded:    31
[uidupdater]:
  got:          31
  forwarded:    31
[referencesimporter]:
  passed-through:    31
[printcounters]:
  passed-through:    31
[IMPORTING]:
  got:          31
  forwarded:    31

当 constructor对 item 没有任何作用，我算一下原因；显然是 constructor section 不写任何东西，因为它不知道要创建的对象的类型。但这不应该
信息已在某处创建？!

(还有一个问题:显然 fileimporter 只接收 datacorrector传递的714中的31个对象.但首先我会
喜欢看任何进口的东西。)

我究竟做错了什么？

哦，还有 collective.transmogrifier.sections 的在线文档会很好；他们甚至缺乏文档字符串......

编辑 :我的计数叉在这里(分支 add-info):

collective.transmogrifier

plone.app.transmogrifier

quintagroup.transmogrifier

第二次编辑 :

当我移动 IMPORTING前段 constructer ，计数器输出为:

Items summary
~~~~~~~~~~~~~
[reader]:
  created:   714
[pathfixer]:
  got:         714
  forwarded:   714
  stripped:    390
[IMPORTING]:
  got:         714
  forwarded:   714
[constructor]:
  got:            714
  missing-type:   714
  missing-info:   714
  forwarded:      714
[datacorrector]:
  got:         714
  forwarded:   714
[fileimporter]:
  got:          31
  forwarded:    31
[demarshaller]:
  got:          31
  forwarded:    31
[uidupdater]:
  got:          31
  forwarded:    31
[referencesimporter]:
  passed-through:    31
[printcounters]:
  passed-through:    31

因此， collector还是找不到 _type信息。

第三次编辑:

我添加了一个小工具，可以打印关于找到的项目的简短信息(默认情况下每个部分的第一个项目； _path 和 _type 带有值(如果存在)和其他键的列表)。结果是:

[reader], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[pathfixer], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[pathfixer], item #2:
    _path=''
    other keys: _import_context (DirectoryImportContext)
2015-08-18 18:39:56 INFO IMPORTING _path=
[constructor], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[reader], item #2:
    _path='some/archetypes/object/containing/a/video'
    other keys: _files (dict), _import_context (DirectoryImportContext)

确实没有 _type key 在任何地方，所以我需要一个提供它们的部分。

第四次编辑:

重新插入后 manifestimporter之前 constructor ， 我有:

[reader], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[pathfixer], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[pathfixer], item #2:
    _path=''
    other keys: _import_context (DirectoryImportContext)
2015-08-19 10:15:43 INFO IMPORTING _path=
[constructor], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[manifestimporter], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[reader], item #2:
    _path='    [reader], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[pathfixer], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[pathfixer], item #2:
    _path=''
    other keys: _import_context (DirectoryImportContext)
2015-08-19 10:15:43 INFO IMPORTING _path=
[constructor], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[manifestimporter], item #1:
    _path=''
    other keys: _import_context (DirectoryImportContext)
[reader], item #2:
    _path='some/archetypes/object/containing/a/video'
    other keys: _files (dict), _import_context (DirectoryImportContext)
...
2015-08-19 10:15:44 INFO IMPORTING
Pipeline processing time: 00:00:00
         715 items were generated in source sections
           2 went through full pipeline
         713 were discarded in some section

manifestimporter部分不转发任何以前的项目，因此来自 reader 的所有项目被扔掉。

第 5 次编辑:
试过了 recommended way使用“站点配置导出步骤”；我编辑了默认导出脚本并尝试了导出，但我得到了以下回溯:

Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module Products.GenericSetup.tool, line 598, in manage_exportSelectedSteps
  Module Products.GenericSetup.tool, line 1053, in _doRunExportSteps
  Module quintagroup.transmogrifier.exportimport, line 74, in exportSiteStructure
  Module collective.transmogrifier.utils, line 121, in constructPipeline
  Module quintagroup.transmogrifier.sitewalker, line 29, in __init__
TypeError: ('Could not adapt', {'manifestexporter': {'blueprint': 'quintagroup.transmogrifier.manifestexporter'}, 'transmogrifier': {'pipeline': '\nsitewalker\nuidextractor\npathfixer\nmanifestexporter\nfileexporter\nmarshaller\npropertiesexporter\ncommentsexporter\ndatacorrector\nportletsexporter\nwriter\nEXPORTING'}, 'uidextractor': {'blueprint': 'my.transmogrifier.uidextractor', 'trace-first': 'true', 'inspect_fields': '\ntext\ndescription\nnotes'}, 'sitewalker': {'blueprint': 'quintagroup.transmogrifier.sitewalker', 'start-path': '\nakademie/vortraege/d-02-verlegung-lektion-02-leitungsgraben', 'exclude-contained': 'false'}, 'xmlwalker': {'blueprint': 'collective.transmogrifier.sections.xmlwalker'}, 'encapsulator': {'blueprint': 'plone.app.transmogrifier.mimeencapsulator', 'mimetype': 'item/_mimetype', 'field': 'string:datafield'}, 'writer': {'blueprint': 'quintagroup.transmogrifier.writer', 'path': 'var/export/', 'prefix': '', 'context': 'tarball'}, 'commentsexporter': {'blueprint': 'quintagroup.transmogrifier.commentsexporter'}, 'pathfixer': {'blueprint': 'plone.app.transmogrifier.pathfixer', 'stripstring': 'unitracc/'}, 'echo': {'blueprint': 'visaplan.transmogrifier.echo'}, 'marshaller': {'blueprint': 'quintagroup.transmogrifier.marshaller'}, 'propertiesexporter': {'blueprint': 'quintagroup.transmogrifier.propertiesexporter'}, 'datacorrector': {'blueprint': 'quintagroup.transmogrifier.datacorrector', 'sources': '\nmarshall'}, 'breakpoint': {'blueprint': 'collective.transmogrifier.sections.breakpoint'}, 'EXPORTING': {'blueprint': 'quintagroup.transmogrifier.logger', 'keys': '\n_type\n_path'}, 'portletsexporter': {'blueprint': 'quintagroup.transmogrifier.portletsexporter'}, 'fileexporter': {'blueprint': 'quintagroup.transmogrifier.fileexporter'}}, <InterfaceClass zope.annotation.interfaces.IAnnotations>)

我的 uidexporter 是否与否无关紧要部分被包括在内。

第 6 次编辑:

这是我用于站点配置导出步骤的当前导出配置文件:

[transmogrifier]
pipeline =
    sitewalker
    manifestexporter
    fileexporter
    marshaller
    propertiesexporter
    commentsexporter
    datacorrector
    portletsexporter
    writer
    EXPORTING

[sitewalker]
blueprint = quintagroup.transmogrifier.sitewalker
exclude-contained = false
start-path =
    Plone/some/existing/structure

[manifestexporter]
blueprint = quintagroup.transmogrifier.manifestexporter

[fileexporter]
blueprint = quintagroup.transmogrifier.fileexporter

[marshaller]
blueprint = quintagroup.transmogrifier.marshaller

[propertiesexporter]
blueprint = quintagroup.transmogrifier.propertiesexporter

[commentsexporter]
blueprint = quintagroup.transmogrifier.commentsexporter

[datacorrector]
blueprint = quintagroup.transmogrifier.datacorrector
sources =
    marshall

[portletsexporter]
blueprint = quintagroup.transmogrifier.portletsexporter

[writer]
blueprint = quintagroup.transmogrifier.writer
context = tarball
path = var/export/
prefix =

[EXPORTING]
blueprint = quintagroup.transmogrifier.logger
keys =
    _type
    _path

第 7 次编辑: reader需要哪种数据的简短信息启用 constructor创建对象，以及导出管道的哪一部分(了解必要的选项)可能会轻松获得 150 个声望点；-)

Answer 1

从对比 quintagroup.transmogrifier's import.cfg您的管道中缺少 manifestimporter 部分。他们的管道上写着:

pipeline =
    reader
    manifestimporter
    constructor
    datacorrector
    fileimporter
    demarshaller
    referencesimporter
    propertiesimporter
    commentsimporter
    portletsimporter
    IMPORTING