20160707154842_create_versions.rb in phcmembers-6.3.5

- old
+ new

@@ -3,60 +3,60 @@
 class CreateVersions < ActiveRecord::Migration
   # Class names of MySQL adapters.
   # - `MysqlAdapter` - Used by gems: `mysql`, `activerecord-jdbcmysql-adapter`.
   # - `Mysql2Adapter` - Used by `mysql2` gem.
   MYSQL_ADAPTERS = [
-    "ActiveRecord::ConnectionAdapters::MysqlAdapter",
-    "ActiveRecord::ConnectionAdapters::Mysql2Adapter"
+  "ActiveRecord::ConnectionAdapters::MysqlAdapter",
+  "ActiveRecord::ConnectionAdapters::Mysql2Adapter"
   ].freeze
-
+  
   # The largest text column available in all supported RDBMS is
   # 1024^3 - 1 bytes, roughly one gibibyte.  We specify a size
   # so that MySQL will use `longtext` instead of `text`.  Otherwise,
   # when serializing very large objects, `text` might not be big enough.
   TEXT_BYTES = 1_073_741_823
-
+  
   def change
-    create_table :versions, versions_table_options do |t|
-      t.string   :item_type, item_type_options
-      t.integer  :item_id,   null: false
-      t.string   :event,     null: false
-      t.string   :whodunnit
-      t.text     :object, limit: TEXT_BYTES
-
-      # Known issue in MySQL: fractional second precision
-      # -------------------------------------------------
-      #
-      # MySQL timestamp columns do not support fractional seconds unless
-      # defined with "fractional seconds precision". MySQL users should manually
-      # add fractional seconds precision to this migration, specifically, to
-      # the `created_at` column.
-      # (https://dev.mysql.com/doc/refman/5.6/en/fractional-seconds.html)
-      #
-      # MySQL users should also upgrade to rails 4.2, which is the first
-      # version of ActiveRecord with support for fractional seconds in MySQL.
-      # (https://github.com/rails/rails/pull/14359)
-      #
-      t.datetime :created_at
-    end
-    add_index :versions, [:item_type, :item_id]
+  create_table :versions, versions_table_options do |t|
+  t.string   :item_type, item_type_options
+  t.integer  :item_id,   null: false
+  t.string   :event,     null: false
+  t.string   :whodunnit
+  t.text     :object, limit: TEXT_BYTES
+  
+  # Known issue in MySQL: fractional second precision
+  # -------------------------------------------------
+  #
+  # MySQL timestamp columns do not support fractional seconds unless
+  # defined with "fractional seconds precision". MySQL users should manually
+  # add fractional seconds precision to this migration, specifically, to
+  # the `created_at` column.
+  # (https://dev.mysql.com/doc/refman/5.6/en/fractional-seconds.html)
+  #
+  # MySQL users should also upgrade to rails 4.2, which is the first
+  # version of ActiveRecord with support for fractional seconds in MySQL.
+  # (https://github.com/rails/rails/pull/14359)
+  #
+  t.datetime :created_at
   end
-
+  add_index :versions, [:item_type, :item_id]
+  end
+  
   private
-
+  
   # MySQL 5.6 utf8mb4 limit is 191 chars for keys used in indexes.
   # See https://github.com/airblade/paper_trail/issues/651
   def item_type_options
-    opt = { null: false }
-    opt[:limit] = 191 if mysql?
-    opt
+  opt = { null: false }
+  opt[:limit] = 191 if mysql?
+  opt
   end
-
+  
   def mysql?
-    MYSQL_ADAPTERS.include?(connection.class.name)
+  MYSQL_ADAPTERS.include?(connection.class.name)
   end
-
+  
   # Even modern versions of MySQL still use `latin1` as the default character
   # encoding. Many users are not aware of this, and run into trouble when they
   # try to use PaperTrail in apps that otherwise tend to use UTF-8. Postgres, by
   # comparison, uses UTF-8 except in the unusual case where the OS is configured
   # with a custom locale.
@@ -71,10 +71,12 @@
   # - https://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html
   #
   def versions_table_options
     if mysql?
       { options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci" }
-    else
+      else
       {}
     end
   end
 end
+
+