quality: update schema to use utf8mb4 for new databases

Author: macite

db/schema.rb

@@ -11,7 +11,7 @@
 # It's strongly recommended that you check this file into your version control system.
 
 ActiveRecord::Schema[7.1].define(version: 2025_03_27_094635) do
-  create_table "activity_types", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "activity_types", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name", null: false
     t.string "abbreviation", null: false
     t.datetime "created_at", null: false
@@ -20,7 +20,7 @@
     t.index ["name"], name: "index_activity_types_on_name", unique: true
   end
 
-  create_table "auth_tokens", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "auth_tokens", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "auth_token_expiry", null: false
     t.bigint "user_id"
     t.string "authentication_token", null: false
@@ -29,14 +29,14 @@
     t.index ["user_id"], name: "index_auth_tokens_on_user_id"
   end
 
-  create_table "breaks", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "breaks", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "start_date", null: false
     t.integer "number_of_weeks", null: false
     t.bigint "teaching_period_id"
     t.index ["teaching_period_id"], name: "index_breaks_on_teaching_period_id"
   end
 
-  create_table "campuses", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "campuses", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name", null: false
     t.integer "mode", null: false
     t.string "abbreviation", null: false
@@ -56,7 +56,7 @@
     t.index ["tutor_id"], name: "index_chip_usages_on_tutor_id"
   end
 
-  create_table "comments_read_receipts", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "comments_read_receipts", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_comment_id", null: false
     t.bigint "user_id", null: false
     t.datetime "created_at", null: false
@@ -75,7 +75,7 @@
     t.index ["unit_id"], name: "index_d2l_assessment_mappings_on_unit_id", unique: true
   end
 
-  create_table "discussion_comments", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "discussion_comments", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "time_started"
     t.datetime "time_completed"
     t.integer "number_of_prompts"
@@ -98,7 +98,7 @@
     t.index ["parent_chip_id"], name: "index_feedback_chips_on_parent_chip_id"
   end
 
-  create_table "group_memberships", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "group_memberships", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "group_id"
     t.bigint "project_id"
     t.boolean "active", default: true
@@ -108,7 +108,7 @@
     t.index ["project_id"], name: "index_group_memberships_on_project_id"
   end
 
-  create_table "group_sets", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "group_sets", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "unit_id"
     t.string "name"
     t.boolean "allow_students_to_create_groups", default: true
@@ -122,7 +122,7 @@
     t.index ["unit_id"], name: "index_group_sets_on_unit_id"
   end
 
-  create_table "group_submissions", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "group_submissions", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "group_id"
     t.string "notes"
     t.bigint "submitted_by_project_id"
@@ -134,7 +134,7 @@
     t.index ["task_definition_id"], name: "index_group_submissions_on_task_definition_id"
   end
 
-  create_table "groups", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "groups", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "group_set_id"
     t.bigint "tutorial_id"
     t.string "name"
@@ -158,7 +158,7 @@
     t.index ["target_id"], name: "index_learning_outcome_links_on_target_id"
   end
 
-  create_table "learning_outcomes", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "learning_outcomes", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "short_description"
     t.string "full_outcome_description", limit: 4096
     t.string "abbreviation"
@@ -168,15 +168,15 @@
     t.index ["context_id", "context_type"], name: "index_learning_outcomes_on_context_id_and_context_type"
   end
 
-  create_table "logins", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "logins", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "timestamp"
     t.bigint "user_id"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.index ["user_id"], name: "index_logins_on_user_id"
   end
 
-  create_table "overseer_assessments", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "overseer_assessments", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_id", null: false
     t.string "submission_timestamp", null: false
     t.string "result_task_status"
@@ -187,7 +187,7 @@
     t.index ["task_id"], name: "index_overseer_assessments_on_task_id"
   end
 
-  create_table "overseer_images", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "overseer_images", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name", null: false
     t.string "tag", null: false
     t.datetime "created_at", null: false
@@ -199,7 +199,7 @@
     t.index ["tag"], name: "index_overseer_images_on_tag", unique: true
   end
 
-  create_table "projects", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "projects", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "unit_id"
     t.string "project_role"
     t.datetime "created_at", null: false
@@ -226,14 +226,14 @@
     t.index ["user_id"], name: "index_projects_on_user_id"
   end
 
-  create_table "roles", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "roles", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name"
     t.text "description"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
   end
 
-  create_table "task_comments", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_comments", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_id", null: false
     t.bigint "user_id", null: false
     t.string "comment", limit: 4096
@@ -265,7 +265,7 @@
     t.index ["user_id"], name: "index_task_comments_on_user_id"
   end
 
-  create_table "task_definitions", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_definitions", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "unit_id"
     t.string "name"
     t.string "description", limit: 4096
@@ -303,7 +303,7 @@
     t.index ["unit_id"], name: "index_task_definitions_on_unit_id"
   end
 
-  create_table "task_engagements", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_engagements", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "engagement_time"
     t.string "engagement"
     t.bigint "task_id"
@@ -312,7 +312,7 @@
     t.index ["task_id"], name: "index_task_engagements_on_task_id"
   end
 
-  create_table "task_pins", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_pins", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_id", null: false
     t.bigint "user_id", null: false
     t.datetime "created_at", null: false
@@ -322,7 +322,7 @@
     t.index ["user_id"], name: "fk_rails_915df186ed"
   end
 
-  create_table "task_similarities", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_similarities", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_id"
     t.bigint "other_task_id"
     t.integer "pct"
@@ -337,14 +337,14 @@
     t.index ["tii_submission_id"], name: "index_task_similarities_on_tii_submission_id"
   end
 
-  create_table "task_statuses", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_statuses", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name"
     t.string "description"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
   end
 
-  create_table "task_submissions", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "task_submissions", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "submission_time"
     t.datetime "assessment_time"
     t.string "outcome"
@@ -356,7 +356,7 @@
     t.index ["task_id"], name: "index_task_submissions_on_task_id"
   end
 
-  create_table "tasks", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "tasks", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_definition_id"
     t.bigint "project_id"
     t.bigint "task_status_id"
@@ -383,7 +383,7 @@
     t.index ["task_status_id"], name: "index_tasks_on_task_status_id"
   end
 
-  create_table "teaching_periods", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "teaching_periods", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "period", null: false
     t.datetime "start_date", null: false
     t.datetime "end_date", null: false
@@ -453,7 +453,7 @@
     t.index ["tii_task_similarity_id"], name: "index_tii_submissions_on_tii_task_similarity_id"
   end
 
-  create_table "tutorial_enrolments", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "tutorial_enrolments", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.bigint "project_id", null: false
@@ -463,7 +463,7 @@
     t.index ["tutorial_id"], name: "index_tutorial_enrolments_on_tutorial_id"
   end
 
-  create_table "tutorial_streams", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "tutorial_streams", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name", null: false
     t.string "abbreviation", null: false
     t.datetime "created_at", null: false
@@ -477,7 +477,7 @@
     t.index ["unit_id"], name: "index_tutorial_streams_on_unit_id"
   end
 
-  create_table "tutorials", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "tutorials", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "unit_id"
     t.string "meeting_day"
     t.string "meeting_time"
@@ -497,7 +497,7 @@
     t.index ["unit_role_id"], name: "index_tutorials_on_unit_role_id"
   end
 
-  create_table "unit_roles", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "unit_roles", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "user_id"
     t.bigint "tutorial_id"
     t.datetime "created_at", null: false
@@ -510,7 +510,7 @@
     t.index ["user_id"], name: "index_unit_roles_on_user_id"
   end
 
-  create_table "units", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "units", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "name"
     t.string "description", limit: 4096
     t.datetime "start_date"
@@ -560,7 +560,7 @@
     t.index ["user_id"], name: "index_user_oauth_tokens_on_user_id"
   end
 
-  create_table "users", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "users", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "email", default: "", null: false
     t.string "encrypted_password", default: "", null: false
     t.string "reset_password_token"
@@ -596,15 +596,15 @@
     t.index ["username"], name: "index_users_on_username", unique: true
   end
 
-  create_table "webcal_unit_exclusions", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "webcal_unit_exclusions", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "webcal_id", null: false
     t.bigint "unit_id", null: false
     t.index ["unit_id", "webcal_id"], name: "index_webcal_unit_exclusions_on_unit_id_and_webcal_id", unique: true
     t.index ["unit_id"], name: "index_webcal_unit_exclusions_on_unit_id"
     t.index ["webcal_id"], name: "fk_rails_d5fab02cb7"
   end
 
-  create_table "webcals", charset: "utf8", collation: "utf8_unicode_ci", force: :cascade do |t|
+  create_table "webcals", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.string "guid", limit: 36, null: false
     t.boolean "include_start_dates", default: false, null: false
     t.bigint "user_id"