[WIP] Comment import example

.gitignore

@@ -18,3 +18,6 @@ web/sites/default/settings.local.php
 .vagrant
 Vagrantfile.local
 local.config.yml
+
+# Ignore vim
+*.swp

config/sync/core.entity_form_display.node.people.default.yml

@@ -3,6 +3,7 @@ langcode: en
 status: true
 dependencies:
   config:
+    - field.field.node.people.comment
     - field.field.node.people.field_country
     - field.field.node.people.field_dob
     - field.field.node.people.field_email
@@ -11,13 +12,19 @@ dependencies:
     - field.field.node.people.field_last_name
     - node.type.people
   module:
+    - comment
     - datetime
     - path
 id: node.people.default
 targetEntityType: node
 bundle: people
 mode: default
 content:
+  comment:
+    weight: 37
+    settings: {  }
+    third_party_settings: {  }
+    type: comment_default
   created:
     type: datetime_timestamp
     weight: 10

config/sync/core.entity_view_display.node.people.default.yml

@@ -3,6 +3,8 @@ langcode: en
 status: true
 dependencies:
   config:
+    - core.entity_view_display.comment.comment.default
+    - field.field.node.people.comment
     - field.field.node.people.field_country
     - field.field.node.people.field_dob
     - field.field.node.people.field_email
@@ -11,13 +13,22 @@ dependencies:
     - field.field.node.people.field_last_name
     - node.type.people
   module:
+    - comment
     - datetime
     - user
 id: node.people.default
 targetEntityType: node
 bundle: people
 mode: default
 content:
+  comment:
+    weight: 107
+    label: above
+    settings:
+      view_mode: default
+      pager_id: 0
+    third_party_settings: {  }
+    type: comment_default
   field_country:
     weight: 104
     label: above

config/sync/field.field.node.people.comment.yml

@@ -0,0 +1,33 @@
+uuid: 387af81b-94ba-4f20-a7ca-4053b6e7746a
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.comment
+    - node.type.people
+  module:
+    - comment
+id: node.people.comment
+field_name: comment
+entity_type: node
+bundle: people
+label: Comments
+description: ''
+required: false
+translatable: true
+default_value:
+  -
+    status: 2
+    cid: 0
+    last_comment_timestamp: 0
+    last_comment_name: null
+    last_comment_uid: 0
+    comment_count: 0
+default_value_callback: ''
+settings:
+  default_mode: 1
+  per_page: 50
+  anonymous: 0
+  form_location: true
+  preview: 1
+field_type: comment

config/sync/migrate_plus.migration.migrate_csv_comments.yml

@@ -0,0 +1 @@
+../../web/modules/custom/custom_migrate/config/install/migrate_plus.migration.migrate_csv_comments.yml

web/modules/custom/custom_migrate/artifacts/comments.csv

@@ -0,0 +1,6 @@
+id,person_id,cid_parent,subject,body,name,mail,aid
+1,2,,"foo","foo",,,1
+2,2,1,"bar","bar",,,1
+3,2,2,"baz","baz",,,1
+4,3,,"qux","qux",,,1
+5,3,4,"buzz","buzz",,,1

web/modules/custom/custom_migrate/config/install/migrate_plus.migration.migrate_csv_comments.yml

@@ -0,0 +1,82 @@
+langcode: en
+status: true
+dependencies:
+  enforced:
+    # List here the name of the module that provided this migration if you want
+    # this config to be removed when that module is uninstalled.
+    module:
+      - custom_migrate
+migration_dependencies:
+  required:
+    - migrate_csv
+# The source data is in CSV files, so we use the 'csv' source plugin.
+id: migrate_csv_comments
+label: CSV file migration of comments
+migration_tags:
+  - CSV
+source:
+  plugin: csv
+  # Full path to the file.
+  path: /artifacts/comments.csv
+  # The number of rows at the beginning which are not data.
+  header_row_count: 1
+  # These are the field names from the source file representing the key
+  # uniquely identifying each game - they will be stored in the migration
+  # map table as columns sourceid1, sourceid2, and sourceid3.
+  keys:
+    - id
+  # Here we identify the columns of interest in the source file. Each numeric
+  # key is the 0-based index of the column. For each column, the key below
+  # (e.g., "start_date") is the field name assigned to the data on import, to
+  # be used in field mappings below. The value is a user-friendly string for
+  # display by the migration UI.
+  column_names:
+    # So, here we're saying that the first field (index 0) on each line will
+    # be stored in the start_date field in the Row object during migration, and
+    # that name can be used to map the value below. "Date of game" will appear
+    # in the UI to describe this field.
+    0:
+      id: Comment ID
+    1:
+      person_id: Person ID
+    2:
+      cid_parent: Parent Comment ID
+    3:
+      subject: Subject 
+    4:
+      body: Body
+    5:
+      name: Name
+    6:
+      mail: Mail
+    7:
+      aid: Author ID
+process:
+  pid:
+    plugin: migration
+    migration: migrate_csv_comments
+    source: cid_parent
+  entity_id:
+    plugin: migration
+    migration: migrate_csv
+    source: person_id
+  entity_type:
+    plugin: default_value
+    default_value: node
+  field_name:
+    plugin: default_value
+    default_value: comment
+  subject: subject
+  uid:
+    plugin: default_value
+    default_value: 1
+  name: name
+  mail: mail
+  status:
+    plugin: default_value
+    default_value: 1
+  'comment_body/value': body
+destination:
+  # Here we're saying that each row of data (line from the CSV file) will be
+  # used to create a comment entity.
+  plugin: entity:comment

web/modules/custom/custom_migrate/custom_migrate.module

@@ -28,4 +28,5 @@ function custom_migrate_help($route_name, RouteMatchInterface $route_match) {
  */
 function custom_migrate_migration_plugins_alter(&$definitions) {
   $definitions['migrate_csv']['source']['path'] = drupal_get_path('module', 'custom_migrate') . $definitions['migrate_csv']['source']['path'];
+  $definitions['migrate_csv_comments']['source']['path'] = drupal_get_path('module', 'custom_migrate') . $definitions['migrate_csv_comments']['source']['path'];
 }