Merge branch 'szzh' of http://repository.trustie.net/xianbo/trustie2 into szzh
commit
698870ddee
@ -1,3 +1,7 @@
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class CourseStatus < ActiveRecord::Base
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attr_accessible :changesets_count, :course_ac_para, :course_id, :grade, :watchers_count
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belongs_to :course
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validates_presence_of :course_id
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validates_uniqueness_of :course_id
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end
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@ -0,0 +1,16 @@
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class ClearCourseStatus < ActiveRecord::Migration
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def up
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# 删除重复的课程状态
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# 之前做迁移的时候未加验证可能引起此问题
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courseidlist = "(-1"
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CourseStatus.all.each do |status|
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sql = "delete from course_statuses where course_id=" + status.course_id.to_s + " and id<>" + status.id.to_s +
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" and course_id not in " +courseidlist + ")"
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courseidlist += "," + status.course_id.to_s;
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execute(sql)
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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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