插件数据增加迁移文件，确保数据库数据正确

db/migrate/20140725073357_insert_to_setting.rb

@@ -0,0 +1,28 @@
+class InsertToSetting < ActiveRecord::Migration
+  def up
+    ss = Setting.find_all_by_name("plugin_redmine_ckeditor")
+    if ss.nil?
+      sett = Setting.new
+      sett.name = "plugin_redmine_ckeditor"
+      sett.value = "--- !ruby/hash:ActiveSupport::HashWithIndifferentAccess
+        skin: kama
+        ui_color: ! '#f4f4f4'
+        width: ''
+        height: '400'
+        enter_mode: '1'
+        show_blocks: '1'
+        toolbar_can_collapse: '0'
+        toolbar_location: top
+        toolbar: Source,ShowBlocks,--,Undo,Redo,-,Find,Replace,--,Bold,Italic,Underline,Strike,-,Subscript,Superscript,-,NumberedList,BulletedList,-,Outdent,Indent,Blockquote,-,JustifyLeft,JustifyCenter,JustifyRight,JustifyBlock,-,Link,Unlink,-,richImage,Table,HorizontalRule,/,Styles,Format,Font,FontSize,-,TextColor,BGColor,Cut,Copy,Paste,BidiLtr,BidiRtl,PasteText,PasteFromWord,RemoveFormat,SelectAll"
+      sett.save
+    end
+  end
+
+  def down
+    ss = Setting.find_all_by_name("plugin_redmine_ckeditor")
+    if ss.nil?
+    else
+      ss.destroy
+    end
+  end
+end