init project

app/models/course_list.rb

@@ -0,0 +1,15 @@
+class CourseList < ApplicationRecord
+  has_many :courses
+  has_many :question_banks
+  has_many :homework_banks
+  has_many :exercise_banks
+  has_many :gtask_banks
+  has_many :gtopic_banks
+  belongs_to :user
+
+  validate :validate_sensitive_string
+
+  def validate_sensitive_string
+    raise("课程名称包含敏感词汇，请重新输入") unless HarmoniousDictionary.clean?(name)
+  end
+end