In this article, we are describing the simplest content migration from drupal 6 or 7 to drupal 8 using the Drush commands. We are not using any custom module source code for this migration process. For one of our client need to rebuild the drupal 7 site in drupal 8 without any changes. For this case we need all the data from drupal 7 site need to be there in the drupal 8 site. We need to migrate everything including the content types, users, taxonomy etc without any change. If we are planning to migrate a Drupal 7 site to Drupal 8 without any changes to content types, taxonomy and user details, we can easily do with few Drush commands. If we are planning to change the content type field or we are combining any two content types fileds or replacing any content type with new content type we need to migrate with our custom code.
For this migration we need to setup the drupal 7 site database inside a new database. Then move with the drupal 8 basic site setup. The one main thing we need to consider database level migration is to add the migrating database details inside the drupal 8 settings.php file.
Added the database details of drupal 7 site inside the drupal 8 settings.php file.
$databases['migrate']['default'] = array (
'database' => 'drupal_7_database_name',
'username' => 'db_username',
'password' => 'db_password',
'prefix' => '',
'host' => 'localhost',
'port' => '3306',
'namespace' => 'Drupal\\Core\\Database\\Driver\\mysql',
'driver' => 'mysql',
);Download and enable the migrate tool module along with the drupal 8 core migrate modules.
drush migrate-status will give the migration status there we can get the details of things we can migrate as show below. We will get the list of migration id with this we can manage the migrations from drupal 7 to drupal 8.
Group Migration ID Status Total Imported Unprocessed Last Imported
------------------- -------------------------------------------------- -------- ------- ---------- ------------- ---------------------
Default (default) contact_category Idle 1 0 1
Default (default) d6_aggregator_settings Idle 0 0 0
Default (default) d6_date_formats Idle 0 0 0
Default (default) d6_dblog_settings Idle 1 0 1
Default (default) d6_entity_reference_translation:comment__comment Idle N/A 0 N/A
Default (default) d6_filter_format Idle N/A 0 N/A
Default (default) d6_language_content_menu_settings Idle 0 0 0
Default (default) d6_language_types Idle 0 0 0
Default (default) d6_node_settings Idle 1 0 1
Default (default) d6_search_settings Idle 0 0 0
Default (default) d6_system_cron Idle 1 0 1
Default (default) d6_system_date Idle 1 0 1
Default (default) d6_system_file Idle 0 0 0
Default (default) d6_system_maintenance_translation Idle N/A 0 N/A
Default (default) d6_system_performance Idle 1 0 1
Default (default) d6_system_site_translation Idle N/A 0 N/A
Default (default) d6_url_alias Idle 305 0 305
Default (default) d6_user_mail Idle 1 0 1
Default (default) d6_user_mail_translation Idle N/A 0 N/A
Default (default) d6_user_settings Idle 1 0 1
Default (default) d6_user_settings_translation Idle N/A 0 N/A
Default (default) d7_aggregator_settings Idle 0 0 0
Default (default) d7_color Idle 0 0 0
Default (default) d7_dblog_settings Idle 1 0 1
Default (default) d7_file_private Idle 0 0 0
Default (default) d7_filter_settings Idle 1 0 1
Default (default) d7_global_theme_settings Idle 1 0 1
Default (default) d7_image_settings Idle 0 1 -1 2018-12-12 18:06:12
Default (default) d7_image_styles Idle 10 10 0 2018-12-12 18:06:27
Default (default) d7_language_types Idle 0 0 0
Default (default) d7_node_settings Idle 1 0 1
Default (default) d7_path_redirect Idle 38 0 38
Default (default) d7_search_settings Idle 0 0 0
Default (default) d7_system_authorize Idle 0 0 0
Default (default) d7_system_cron Idle 0 0 0
Default (default) d7_system_date Idle 1 0 1
Default (default) d7_system_file Idle 1 0 1
Default (default) d7_system_mail Idle 1 0 1
Default (default) d7_system_performance Idle 1 0 1
Default (default) d7_theme_settings Idle 3 0 3
Default (default) d7_user_flood Idle 1 0 1
Default (default) d7_user_mail Idle 1 0 1
Default (default) file_settings Idle 0 0 0
Default (default) locale_settings Idle 0 0 0
Default (default) menu_settings Idle 0 1 -1 2018-12-12 18:34:03
Default (default) search_page Idle 0 0 0
Default (default) system_image Idle 1 0 1
Default (default) system_image_gd Idle 1 0 1
Default (default) system_logging Idle 1 0 1
Default (default) system_maintenance Idle 0 0 0
Default (default) system_rss Idle 0 0 0
Default (default) system_site Idle 1 0 1
Default (default) taxonomy_settings Idle 0 0 0
Default (default) text_settings Idle 0 0 0
Default (default) update_settings Idle 1 0 1
Default (default) block_content_type Idle 1 1 0 2018-12-12 18:36:40
Default (default) d6_contact_settings Idle 1 0 1
Default (default) block_content_body_field Idle 1 1 0 2018-12-12 18:36:52
Default (default) d7_contact_settings Idle 1 0 1
Default (default) d6_custom_block Idle N/A 0 N/A
Default (default) d6_user_role Idle 4 0 4
Default (default) d6_block Idle 676 0 676
Default (default) d7_filter_format Idle 5 0 5
Default (default) d7_custom_block Idle 102 0 102
Default (default) d7_user_role Idle 4 4 0 2018-12-12 17:57:43
Default (default) d7_block Idle 676 0 676
Default (default) block_content_entity_display Idle 1 0 1
Default (default) block_content_entity_form_display Idle 1 0 1
Default (default) d6_node_type Idle 11 0 11
Default (default) d6_comment_type Idle 11 0 11
Default (default) d6_comment_field Idle 11 0 11
Default (default) d6_comment_field_instance Idle 11 0 11
Default (default) d6_comment_entity_display Idle 11 0 11
Default (default) d6_comment_entity_form_display Idle 11 0 11
Default (default) d7_node_type Idle 11 11 0 2018-12-12 17:59:21
Default (default) d7_comment_type Idle 11 0 11
Default (default) d7_comment_field Idle 11 0 11
Default (default) d7_comment_field_instance Idle 11 0 11
Default (default) d7_comment_entity_display Idle 11 0 11
Default (default) default_language Idle 0 0 0
Default (default) d6_file Idle N/A 0 N/A
Default (default) d6_user_picture_file Idle 2 0 2
Default (default) user_picture_field Idle 1 1 0 2018-12-12 18:32:59
Default (default) user_picture_field_instance Idle 1 1 0 2018-12-12 18:33:16
Default (default) user_picture_entity_display Idle 1 0 1
Default (default) user_picture_entity_form_display Idle 1 0 1
Default (default) d6_user Idle 8 0 8
Default (default) d6_comment Idle N/A 0 N/A
Default (default) d6_comment_entity_form_display_subject Idle 11 0 11
Default (default) d7_comment_entity_form_display Idle 11 0 11
Default (default) d7_field Idle 52 0 52
Default (default) d7_taxonomy_vocabulary Idle 4 4 0 2018-12-12 17:48:15
Default (default) d7_field_instance Idle 70 0 70
Default (default) d7_file Idle 274 0 0 2018-12-12 18:05:02
Default (default) d7_user Idle 8 8 0 2018-12-12 17:58:02
Default (default) d7_node:article Idle 124 124 0 2018-12-12 18:00:25
Default (default) d7_node:blog Idle 0 0 0
Default (default) d7_node:bounce_convert_campaign Idle 0 0 0
Default (default) d7_node:clients Idle 0 0 0
Default (default) d7_node:dexp_portfolio Idle 16 0 16
Default (default) d7_node:gallery Idle 1 0 1
Default (default) d7_node:page Idle 5 0 5
Default (default) d7_node:slider Idle 0 0 0
Default (default) d7_node:team Idle 8 8 0 2018-12-12 18:02:34
Default (default) d7_node:testimonial Idle 8 0 8
Default (default) d7_node:webform Idle 2 2 0 2018-12-12 18:32:02
Default (default) d7_node_translation:article Idle 0 0 0
Default (default) d7_node_translation:blog Idle 0 0 0
Default (default) d7_node_translation:bounce_convert_campaign Idle 0 0 0
Default (default) d7_node_translation:clients Idle 0 0 0
Default (default) d7_node_translation:dexp_portfolio Idle 0 0 0
Default (default) d7_node_translation:gallery Idle 0 0 0
Default (default) d7_node_translation:page Idle 0 0 0
Default (default) d7_node_translation:slider Idle 0 0 0
Default (default) d7_node_translation:team Idle 0 0 0
Default (default) d7_node_translation:testimonial Idle 0 0 0
Default (default) d7_node_translation:webform Idle 0 0 0
Default (default) d7_comment Idle 0 0 0
Default (default) d7_comment_entity_form_display_subject Idle 11 0 11
Default (default) d6_taxonomy_vocabulary Idle N/A 0 N/A
Default (default) d7_field_instance_widget_settings Idle 70 0 70
Default (default) d7_view_modes Idle 17 0 17
Default (default) d7_field_formatter_settings Idle 148 0 148
Default (default) d6_upload_field Idle 1 0 1
Default (default) d6_language_negotiation_settings Idle 0 0 0
Default (default) d7_language_negotiation_settings Idle 0 0 0
Default (default) d6_language_content_taxonomy_vocabulary_settings Idle N/A 0 N/A
Default (default) d6_node_setting_sticky Idle 11 0 11
Default (default) d7_node_title_label Idle 11 0 11
Default (default) d7_node_revision:article Idle 0 0 0
Default (default) d7_node_revision:blog Idle 0 0 0
Default (default) d7_node_revision:bounce_convert_campaign Idle 0 0 0
Default (default) d7_node_revision:clients Idle 0 0 0
Default (default) d7_node_revision:dexp_portfolio Idle 0 0 0
Default (default) d7_node_revision:gallery Idle 0 0 0
Default (default) d7_node_revision:page Idle 0 0 0
Default (default) d7_node_revision:slider Idle 0 0 0
Default (default) d7_node_revision:team Idle 0 0 0
Default (default) d7_node_revision:testimonial Idle 0 0 0
Default (default) d7_node_revision:webform Idle 0 0 0
Default (default) d6_node_setting_status Idle 11 0 11
Default (default) d6_node_setting_promote Idle 11 0 11
Default (default) d7_url_alias Idle 305 305 0 2018-12-12 18:11:11
Default (default) d7_rdf_mapping Idle 3 0 3
Default (default) d7_shortcut_set Idle 1 0 1
Default (default) d7_menu Idle 6 6 0 2018-12-12 18:34:29
Default (default) d7_menu_links Idle 24 2 0 2018-12-12 18:35:05
Default (default) d7_shortcut Idle 2 0 2
Default (default) d7_shortcut_set_users Idle 0 0 0
Default (default) d6_menu Idle 6 0 6
Default (default) d6_taxonomy_term Idle N/A 0 N/A
Default (default) d6_vocabulary_field Idle N/A 0 N/A
Default (default) d6_vocabulary_field_instance Idle N/A 0 N/A
Default (default) d6_vocabulary_entity_display Idle N/A 0 N/A
Default (default) d6_vocabulary_entity_form_display Idle N/A 0 N/A
Default (default) d7_taxonomy_term:newsletter_categories Idle 0 0 0
Default (default) d7_taxonomy_term:blog_categories Idle 6 6 0 2018-12-12 17:55:40
Default (default) d7_taxonomy_term:portfolio_category Idle 7 7 0 2018-12-12 18:18:35
Default (default) d7_taxonomy_term:tags Idle 120 120 0 2018-12-12 17:48:53
Default (default) d6_user_contact_settings Idle 8 0 8
Default (default) d6_menu_links Idle 24 0 24
Default (default) d7_custom_block_translation Idle N/A 0 N/A
Default (default) d6_taxonomy_term_translation Idle N/A 0 N/A
Default (default) d7_entity_reference_translation:comment__comment Idle N/A 0 N/A
Default (default) node_translation_menu_links Idle 24 0 24
with the migration id we can migrate content types user and taxonomy terms. Download the migrate_tool module using the below command
composer require drupal/migrate_tools Enable the migrate_tools module
drush en -y migrate_tools First we need to migrate the users and then move with the taxonomy vocabulary and later with content type as the content type may contain term reference field we can avoid those errors Migation of taxonomy vocabulary can be done using the below command
drush migrate-import d7_taxonomy_vocabularyonce the taxonomy vocabulary is migrated, we can move with the term migrations. We can get the migration id with drush migrate-status and we can avoid the unwanted taxonomy terms also, as we can migrate terms with respect to each vocabulary. The below drush command will migrate the terms inside the vocabulay tags.
drush migrate-import d7_taxonomy_term:tagsMigration of content type/node creation can be done with the below command
drush migrate-import d7_node_typeMigration the artcile content can be done with below command
drush migrate-import d7_node:articleWith this above simple commads we can migrate the content from Drupal 7 to Drupa 8 with half an hour.
We have done simple as well as complex drupal migration, If you are still having trouble with the content migrations, talk to a Drupal expert. Please fill in our Contact Us form and we will get back to you shortly.
