Add a migration to create some custom terms.

composer.json

@@ -21,6 +21,7 @@
         "drupal/fixed_block_content": "^1.0",
         "drupal/link_attributes": "^1.9",
         "drupal/migrate_plus": "^4.2",
+        "drupal/migrate_source_csv": "3.1",
         "drupal/migrate_tools": "^4.1",
         "drupal/migrate_upgrade": "^3",
         "drush/drush": "^9.0",

web/modules/custom/geo_upgrade/default_data/default_terms.csv

@@ -0,0 +1,4 @@
+id,name,vocabulary
+1,Issue,collection_type
+2,Author,people_type
+3,Book,collection_type

web/modules/custom/geo_upgrade/geo_upgrade.info.yml

@@ -6,3 +6,5 @@ package: Migration
 dependencies:
   - migrate_drupal
   - migrate_plus
+  - migrate_source_csv
+  - migrate_tools

web/modules/custom/geo_upgrade/migrations/upgrade_d7_node_story_author.yml

@@ -14,14 +14,28 @@ source:
   constants:
     user_id: 1
     author_status: 1
+    # The users that have an article in the old site will have the term
+    # "Author" on the new site, this term was migrated from a CSV and in that
+    # file the ID of that term is 2 (see default_terms.csv) so we are going to
+    # use that source ID to get the site term id.
+    author_type_source_id: 2
   plugin: geod7_author
 process:
   title: field_author_value
   uid: constants/user_id
   status: constants/author_status
+  field_people_type:
+    - plugin: migration_lookup
+      migration: upgrade_d7_taxonomy_term_custom_terms
+      source: constants/author_type_source_id
 destination:
   plugin: 'entity:node'
   default_bundle: people
 migration_dependencies:
-  required: {  }
+  required:
+    - upgrade_d7_taxonomy_term_custom_terms
+    - upgrade_d7_node_story
+    - upgrade_d7_node_page
+    - upgrade_d7_node_gleaning
+    - upgrade_d7_node_blog
   optional: {  }

web/modules/custom/geo_upgrade/migrations/upgrade_d7_taxonomy_term_custom_terms.yml

@@ -0,0 +1,30 @@
+langcode: en
+status: true
+dependencies: {  }
+id: upgrade_d7_taxonomy_term_custom_terms
+migration_tags:
+  - 'Drupal 7'
+  - Content
+migration_group: migrate_drupal_7_geo
+label: 'Extra Taxonomy terms'
+source:
+  plugin: csv
+  path: modules/custom/geo_upgrade/default_data/default_terms.csv
+  ids: [id]
+process:
+  name: name
+  vid: vocabulary
+destination:
+  plugin: entity:taxonomy_term
+# Run first the other migration that create terms to avoid get a tid used by other term.
+migration_dependencies:
+  required:
+    - upgrade_d7_taxonomy_vocabulary
+    - upgrade_d7_taxonomy_term_vocabulary_1
+    - upgrade_d7_taxonomy_term_vocabulary_2
+    - upgrade_d7_taxonomy_term_vocabulary_3
+    - upgrade_d7_taxonomy_term_vocabulary_7
+    - upgrade_d7_taxonomy_term_vocabulary_10
+    - upgrade_d7_taxonomy_term_vocabulary_12
+    - upgrade_d7_taxonomy_term_vocabulary_13
+  optional: {  }