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[Schema] Uniquely index event_configurations by event_id #12215

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[Schema] Uniquely index event_configurations by event_id #12215

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[Schema] Uniquely index `event_configurations` by `event_id`
Luke-Oldenburg Nov 23, 2025
c9f23bc
Add rails validation
Luke-Oldenburg Nov 23, 2025
b926e98
Merge branch 'main' into lro-unique-index-event-config
Luke-Oldenburg Nov 26, 2025
941311c
Merge branch 'main' into lro-unique-index-event-config
Luke-Oldenburg Dec 8, 2025
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3 changes: 2 additions & 1 deletion app/models/event/configuration.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@
#
# Indexes
#
# index_event_configurations_on_event_id (event_id)
# index_event_configurations_on_event_id (event_id) UNIQUE
#
# Foreign Keys
#
Expand All @@ -30,6 +30,7 @@ class Configuration < ApplicationRecord
validates_email_format_of :contact_email, allow_nil: true, allow_blank: true
normalizes :contact_email, with: ->(contact_email) { contact_email.strip.downcase }
validates :subevent_plan, inclusion: { in: -> { Event::Plan.available_plans.map(&:name) } }, allow_blank: true
validates :event, uniqueness: true

after_save :create_or_destroy_monthly_announcement

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9 changes: 9 additions & 0 deletions db/migrate/20251123205131_add_unique_index_to_event_configurations_on_event_id.rb
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@@ -0,0 +1,9 @@
class AddUniqueIndexToEventConfigurationsOnEventId < ActiveRecord::Migration[8.0]
disable_ddl_transaction!

def change
remove_index :event_configurations, :event_id

add_index :event_configurations, :event_id, unique: true, algorithm: :concurrently
end
end
2 changes: 1 addition & 1 deletion db/schema.rb
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Expand Up @@ -958,7 +958,7 @@
t.boolean "generate_monthly_announcement", default: false, null: false
t.string "subevent_plan"
t.datetime "updated_at", null: false
t.index ["event_id"], name: "index_event_configurations_on_event_id"
t.index ["event_id"], name: "index_event_configurations_on_event_id", unique: true
end

create_table "event_follows", force: :cascade do |t|
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