27 lines
860 B
Ruby
27 lines
860 B
Ruby
class UpdateMessageTime < ActiveRecord::Migration
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def up
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course_count = CourseMessage.all.count / 30 + 1
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transaction do
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for i in 1 ... course_count do i
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CourseMessage.page(i).per(30).each do |cmessage|
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if cmessage.course_message
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if cmessage.course_message.respond_to?("created_at")
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cmessage.created_at = cmessage.course_message.created_at
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elsif cmessage.course_message.respond_to?("created_on")
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cmessage.created_at = cmessage.course_message.created_on
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end
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cmessage.save
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course_all_message = MessageAll.where("message_type = '#{cmessage.class.to_s}' and message_id = '#{cmessage.id}'").first
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course_all_message.created_at = cmessage.created_at
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course_all_message.save
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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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