2014-06-06 08:50:46 +08:00
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class MigrateCourseJournals < ActiveRecord::Migration
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def self.up
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# 原课程的讨论区数据迁移成新模式
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JournalsForMessage.find_all_by_jour_type('Project').each do |journal|
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project = Project.find_by_id(journal.jour_id)
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if project && project.project_type == 1
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journal.jour_type = 'Course'
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2014-06-18 11:08:44 +08:00
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journal.jour_id = project.course_extra.id
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2014-06-06 08:50:46 +08:00
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journal.save
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end
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2014-06-18 15:18:30 +08:00
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# 将自动设置的更新日期还原
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sql = ActiveRecord::Base.connection()
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sql.insert "update journals_for_messages set updated_on=created_on where jour_type='Course'"
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2014-06-06 08:50:46 +08:00
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end
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end
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def self.down
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end
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end
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