11 lines
377 B
Ruby
11 lines
377 B
Ruby
class AddCourseidToNews < ActiveRecord::Migration
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#迁移原课程新闻数据
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def change
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add_column :news, :course_id, :int
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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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end
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end
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