Merge pull request #1532 from Retrospring/fix/deduplicate-reactions
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# frozen_string_literal: true
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class RemoveDuplicateReactions < ActiveRecord::Migration[7.0]
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def up
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execute <<~SQUIRREL
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DELETE FROM reactions
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WHERE id IN (
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SELECT id FROM (
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SELECT id, row_number() over (PARTITION BY parent_type, parent_id, user_id ORDER BY id) AS row_number FROM reactions
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)s WHERE row_number >= 2
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)
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SQUIRREL
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add_index :reactions, %i[parent_type parent_id user_id], unique: true
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end
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def down
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remove_index :reactions, %i[parent_type parent_id user_id]
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end
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end
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@ -10,7 +10,7 @@
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#
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# It's strongly recommended that you check this file into your version control system.
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ActiveRecord::Schema[7.0].define(version: 2023_12_09_212629) do
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ActiveRecord::Schema[7.0].define(version: 2023_12_20_100445) do
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# These are extensions that must be enabled in order to support this database
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enable_extension "plpgsql"
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@ -149,6 +149,7 @@ ActiveRecord::Schema[7.0].define(version: 2023_12_09_212629) do
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t.datetime "created_at", null: false
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t.datetime "updated_at", null: false
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t.index ["parent_id", "parent_type"], name: "index_reactions_on_parent_id_and_parent_type"
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t.index ["parent_type", "parent_id", "user_id"], name: "index_reactions_on_parent_type_and_parent_id_and_user_id", unique: true
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t.index ["user_id", "created_at"], name: "index_reactions_on_user_id_and_created_at"
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end
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