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Candidate fix 2: Create inverse migration for utf8mb4 #23846

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merged 2 commits into from Jul 21, 2018
Merged

Candidate fix 2: Create inverse migration for utf8mb4 #23846

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83b8041
Create inverse migration to 20180703165502_change_blocks_to_utf8mb4
joshlory Jul 21, 2018
2a133c7
Manually invert
joshlory Jul 21, 2018
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17 changes: 17 additions & 0 deletions dashboard/db/migrate/20180721010612_rollback_utf8mb4.rb
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@@ -0,0 +1,17 @@
class RollbackUtf8mb4 < ActiveRecord::Migration[5.0]
def up
execute 'alter table blocks convert to charset utf8 collate utf8_unicode_ci'
execute 'alter table blocks modify name varchar(255) charset utf8 collate utf8_unicode_ci'
execute 'alter table blocks modify category varchar(255) charset utf8 collate utf8_unicode_ci'
execute 'alter table blocks modify config text(21845) charset utf8 collate utf8_unicode_ci'
execute 'alter table blocks modify helper_code text(21845) charset utf8 collate utf8_unicode_ci'
end

def down
execute 'alter table blocks convert to charset utf8mb4 collate utf8mb4_unicode_ci'
execute 'alter table blocks modify name varchar(255) charset utf8mb4 collate utf8mb4_unicode_ci'
execute 'alter table blocks modify category varchar(255) charset utf8mb4 collate utf8mb4_unicode_ci'
execute 'alter table blocks modify config text(16383) charset utf8mb4 collate utf8mb4_unicode_ci'
execute 'alter table blocks modify helper_code text(16383) charset utf8mb4 collate utf8mb4_unicode_ci'
end
end
4 changes: 2 additions & 2 deletions dashboard/db/schema.rb
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Expand Up @@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.

ActiveRecord::Schema.define(version: 20180719182514) do
ActiveRecord::Schema.define(version: 20180721010612) do

create_table "activities", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci" do |t|
t.integer "user_id"
Expand Down Expand Up @@ -88,7 +88,7 @@
t.index ["user_id", "script_id", "level_id", "hint_id"], name: "index_authored_hint_view_requests_on_all_related_ids", using: :btree
end

create_table "blocks", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
create_table "blocks", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci" do |t|
t.string "name"
t.string "pool", default: "", null: false
t.string "category"
Expand Down