23 lines
703 B
Ruby
23 lines
703 B
Ruby
class AddCourseidToNews < ActiveRecord::Migration
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#迁移原课程通知数据
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def change
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add_column :news, :course_id, :int
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# course_id不能直接设置为 project_id
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#News.where('project_id IN (SELECT id FROM projects WHERE project_type=1)').update_all("course_id = project_id")
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#News.where('project_id IN (SELECT id FROM projects WHERE project_type=1)').update_all(project_id: -1)
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News.all.each do |news|
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project = Project.find_by_id(news.project_id)
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if project && project.project_type == 1
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news.course_id = project.course_extra.id
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news.project_id = -1
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news.save(:validate => false)
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end
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end
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end
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end
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