27 lines
758 B
Ruby
27 lines
758 B
Ruby
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class AlterUserActivities < ActiveRecord::Migration
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def up
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count = UserActivity.all.count / 30 + 3
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transaction do
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for i in 1 ... count do i
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UserActivity.page(i).per(30).each do |activity|
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if activity.act_type == 'Message'
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if activity.act
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unless activity.act.parent_id.nil?
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parent_act = UserActivity.where("act_id = #{activity.act.parent.id} and act_type='Message'").first
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parent_act.created_at = activity.act.parent.children.maximum("created_on")
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parent_act.save
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activity.destroy
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end
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else
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activity.destroy
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end
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end
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end
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end
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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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