调整

db/migrate/20190517092730_add_description_to_edu_settings.rb

@@ -1,7 +1,7 @@
 class AddDescriptionToEduSettings < ActiveRecord::Migration[5.2]
   def change
-    # add_column :edu_settings, :description, :string
+    add_column :edu_settings, :description, :string
-    # add_index :edu_settings, :name, unique: :true
+    add_index :edu_settings, :name, unique: :true
 
     ['tomcat_webssh', 'webssh_username', 'webssh_password', 'git_address_ip', 'git_address_domain', 'git_username',
     'git_password', 'public_key', 'private_key', 'public_bucket', 'public_bucket_host', 'public_cdn_host', 'cloud_bridge',

db/migrate/20190613022158_add_exec_time_to_challenge.rb

@@ -1,6 +1,6 @@
 class AddExecTimeToChallenge < ActiveRecord::Migration[5.2]
   def change
-    # add_column :challenges, :exec_time, :integer
+    add_column :challenges, :exec_time, :integer
 
     Shixun.find_each do |shixun|
       shixun.challenges.update_all(exec_time: shixun.exec_time)

db/migrate/20190705085829_add_sec_key_to_outputs.rb

@@ -1,7 +1,7 @@
 class AddSecKeyToOutputs < ActiveRecord::Migration[5.2]
   def change
     #add_column :outputs, :sec_key, :string
-    add_column :outputs, :ts_mem, :float
+    # add_column :outputs, :ts_mem, :float
-    add_column :outputs, :ts_time, :float
+    # add_column :outputs, :ts_time, :float
   end
 end