イメージを移行するにはどうすればよいですか？
ブログ（Drupal 7）をDrupal 8.に移行する必要があります。8。フィールド移行に成功しましたが、画像フィールドを移行できません。プロセスプラグインで試行しましたが、何も起こりませんでした。 。ファイルの移行はすでに行われています。
これは設定ファイルです
id: custom_blogs
label: Custom Blogs Migration
source:
plugin: custom_blogs
destination:
plugin: entity:node
process:
# Field mappings and transformations will go here. We will get to this in a minute.
nid: nid
type:
plugin: default_value
default_value: ct_blogs
langcode:
plugin: static_map
bypass: true
source: language
map:
und: en
title: title
uid: uid
status: status
'body/value': body_value
'body/format':
plugin: static_map
bypass: true
source: body_format
map:
1: plain_text
2: basic_html
3: full_html
'body/summary': teaser
'field_ct_blog_image_caption/value': field_blog_image_caption_value
'field_ct_blog_image_caption/format':
plugin: static_map
bypass: true
source: field_blog_image_caption_format
map:
1: plain_text
2: basic_html
3: full_html
4: filtered_html
'field_ct_blog_image_caption/summary': field_blog_image_caption_teaser
field_ct_blogs_tags: tags
field_ct_blogs_image: # Image field name in Drupal 8 site
plugin: iterator
source: field_image # Image field name in Drupal 7 site
process:
target_id:
plugin: migration
migration: custom_blogs_images
source: fid
alt: field_image_alt
title: field_image_alt
width: field_image_width
height: field_image_height
これはプロセスプラグインです
<?php
/**
* @file
* Contains \Drupal\migrate_custom\Plugin\migrate\source\Blogs.
*/
namespace Drupal\custom_migration\Plugin\migrate\source;
use Drupal\migrate\Row;
use Drupal\migrate\Plugin\migrate\source\SqlBase;
/**
* Extract users from Drupal 7 database.
*
* @MigrateSource(
* id = "custom_blogs"
* )
*/
class Blogs extends SqlBase {
/**
* {@inheritdoc}
*/
public function query() {
$query = $this->select('node', 'n')
->condition('n.type', 'blog')
->fields('n', array(
'nid',
'vid',
'type',
'language',
'title',
'uid',
'status',
'created',
'changed',
'promote',
'sticky',
));
$query->orderBy('nid');
return $query;
}
/**
* {@inheritdoc}
*/
public function fields() {
return [
'nid' => $this->t('Node ID'),
'vid' => $this->t('Version ID'),
'type' => $this->t('Type'),
'title' => $this->t('Title'),
'format' => $this->t('Format'),
'teaser' => $this->t('Teaser'),
'uid' => $this->t('Authored by (uid)'),
'created' => $this->t('Created timestamp'),
'changed' => $this->t('Modified timestamp'),
'status' => $this->t('Published'),
'promote' => $this->t('Promoted to front page'),
'sticky' => $this->t('Sticky at top of lists'),
'language' => $this->t('Language (fr, en, ...)'),
'body/value' => $this->t('Value of body'),
'body/format' => $this->t('Format of body'),
'body/summary' => $this->t('Summary of body'),
'field_blog_image_caption/value' => $this->t('Value of Image Caption'),
'field_blog_image_caption/format' => $this->t('Format of Image Caption'),
'field_blog_image_caption/summary' => $this->t('Summary of Image Caption'),
];
}
/**
* {@inheritdoc}
*/
public function prepareRow(Row $row) {
// Find parents for this row.
$nid = $row->getSourceProperty('nid');
$result = $this->getDatabase()->query('
SELECT
fld.body_value,
fld.body_format,
fld.body_summary
FROM
{field_data_body} fld
WHERE
fld.entity_id = :nid
', array(':nid' => $nid));
foreach ($result as $record) {
$row->setSourceProperty('body_value', $record->body_value );
$row->setSourceProperty('body_format', $record->body_format );
$row->setSourceProperty('teaser', $record->body_summary );
}
// Image Caption
$result = $this->getDatabase()->query('
SELECT
fld.field_blog_image_caption_value,
fld.field_blog_image_caption_format,
fld.field_blog_image_caption_summary
FROM
{field_data_field_blog_image_caption} fld
WHERE
fld.entity_id = :nid
', array(':nid' => $nid));
foreach ($result as $record) {
$row->setSourceProperty('field_blog_image_caption_value', $record->field_blog_image_caption_value );
$row->setSourceProperty('field_blog_image_caption_format', $record->field_blog_image_caption_format );
$row->setSourceProperty('field_blog_image_caption_teaser', $record->field_blog_image_caption_summary );
}
// Images
$result = $this->getDatabase()->query('
SELECT
-- fld.field_image_fid,
fld.field_image_alt,
fld.field_image_title,
fld.field_image_width,
fld.field_image_height
FROM
{field_data_field_image} fld
WHERE
fld.entity_id = :nid
', array(':nid' => $nid));
// Create an associative array for each row in the result. The keys
// here match the last part of the column name in the field table.
$images = [];
foreach ($result as $record) {
$images[] = [
// 'target_id' => $record->field_files_fid,
'field_image_alt' => $record->field_image_alt,
'field_image_title' => $record->field_image_title,
'field_image_width' => $record->field_image_width,
'field_image_height' => $record->field_image_height,
];
}
$row->setSourceProperty('field_image', $images);
// Tags
$result = $this->getDatabase()->query('
SELECT
GROUP_CONCAT(fld.field_tags_tid) as tids
FROM
{field_data_field_tags} fld
WHERE
fld.entity_id = :nid
', array(':nid' => $nid));
foreach ($result as $record) {
if (!is_null($record->tids)) {
$row->setSourceProperty('tags', explode(',', $record->tids) );
}
}
return parent::prepareRow($row);
}
/**
* {@inheritdoc}
*/
public function getIds() {
$ids['nid']['type'] = 'integer';
$ids['nid']['alias'] = 'n';
return $ids;
}
}
私が間違っていることについて何か考えはありますか？
プロセスプラグインとして「migration」の代わりに「migration_lookup」を使用してみてください。これは、画像フィールド 'field_image'に移行するために使用したものです。
field_image:
plugin: iterator
source: field_image
process:
target_id:
plugin: migration_lookup
migration: id_of_file_migration
source: fid
alt: alt
title: title
height: height
width: width
https://github.com/jigarius/drupal-migration-example/ に問題の修正に役立つサンプルプロジェクトがあります。
このサンプルモジュールは Drupal 8の移行：ファイル/イメージの移行（パート3） で説明されています。これは、知っておく必要がある重要な部分です。
最初に、各ファイルのファイルエンティティを作成する必要があります。これは、Drupalがファイルを独自のIDを持つファイルエンティティとして扱うためです。次に、Drupalがノードとファイルの関連付けをエンティティ参照として扱い、彼らのID。