cafe-grader-web

Location: cafe-grader-web/db/migrate/028_refactor_problem_body_to_description.rb

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Commit Description:
add new branch for class 2110-101 Introduction to Computer Programming (year 2014) (java language)
Commit Description:
add new branch for class 2110-101 Introduction to Computer Programming (year 2014) (java language)
References:
r401:62ce6a2952eb java
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r92:84da10c15f8a default
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db/migrate/028_refactor_problem_body_to_description.rb | 33 lines | 854 B | text/x-ruby | RubyLexer |
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class RefactorProblemBodyToDescription < ActiveRecord::Migration
def self.up
add_column :problems, :description_id, :integer
Problem.reset_column_information
Problem.find(:all).each do |problem|
if problem.body!=nil
description = Description.new
description.body = problem.body
description.markdowned = false
description.save
problem.description_id = description.id
problem.save
end
end
remove_column :problems, :body
end
def self.down
add_column :problems, :body, :text
Problem.reset_column_information
Problem.find(:all).each do |problem|
if problem.description_id != nil
problem.body = Description.find(problem.description_id).body
problem.save
end
end
remove_column :problems, :description_id
end
end