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fa6f22dd39
FIX: S3 issues around system avatars FIX: reduced backup file size
44 lines
1.2 KiB
Ruby
44 lines
1.2 KiB
Ruby
# This takes all the system avatars out of the upload system, saving us a huge
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# amount of space on backups
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class RemoveSystemAvatarsFromUserAvatars < ActiveRecord::Migration
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def up
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execute "UPDATE users SET uploaded_avatar_id = NULL WHERE uploaded_avatar_id IN (
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SELECT system_upload_id FROM user_avatars
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)"
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# normally we dont reach into the object model, but we have to here.
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# otherwise we will wait a real long time for uploads to go away
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skip = -1
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while skip=destroy_system_avatar_batch(skip) do
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puts "Destroyed up to id: #{skip}"
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end
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remove_column :user_avatars, :system_upload_id
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remove_column :user_avatars, :system_avatar_version
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end
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def destroy_system_avatar_batch(skip)
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initial = skip
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Upload.where('id IN (SELECT system_upload_id FROM user_avatars) AND id > ?', skip)
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.order(:id)
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.limit(500)
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.each do |upload|
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skip = upload.id
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begin
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upload.destroy
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rescue
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Rails.logger.warn "Could not destroy system avatar #{upload.id}"
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end
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end
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skip == initial ? nil : skip
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rescue
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Rails.logger.warn "Could not destroy system avatars, skipping"
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nil
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end
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def down
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raise ActiveRecord::IrreversibleMigration
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end
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end
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