55 lines
1.7 KiB
Ruby
55 lines
1.7 KiB
Ruby
#
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# Copyright (C) 2016 - present Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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class RecomputeEnrollmentStates < ActiveRecord::Migration[4.2]
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tag :postdeploy
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def up
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# copy-pasted from build_enrollment_states
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# try to partition off ranges of ids in the table with at most 50,000 ids per partition
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ranges = []
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current_min = Enrollment.minimum(:id)
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return unless current_min
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range_size = 50_000
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while current_min
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current_max = current_min + range_size - 1
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next_min = Enrollment.where("id > ?", current_max).minimum(:id)
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if next_min
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ranges << [current_min, current_max]
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elsif !next_min && ranges.any?
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ranges << [current_min, nil]
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end
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current_min = next_min
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end
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unless ranges.any?
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ranges = [[nil, nil]]
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end
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ranges.each do |start_at, end_at|
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DataFixup::RecomputeEnrollmentStates.send_later_if_production_enqueue_args(:run,
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{:strand => "enrollment_state_recomputing_#{Shard.current.database_server.id}", :priority => Delayed::MAX_PRIORITY}, start_at, end_at)
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end
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end
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def down
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end
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end
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