题库

app/models/curriculum.rb

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+class Curriculum < ApplicationRecord
+end

app/models/knowledge_point.rb

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+class KnowledgePoint < ApplicationRecord
+  belongs_to :curriculum
+end

app/models/knowledge_point_container.rb

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+class KnowledgePointContainer < ApplicationRecord
+  belongs_to :knowledge_point
+end

db/migrate/20191217100300_create_curriculums.rb

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+class CreateCurriculums < ActiveRecord::Migration[5.2]
+  def change
+    create_table :curriculums do |t|
+      t.string :name
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20191217102106_create_knowledge_points.rb

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+class CreateKnowledgePoints < ActiveRecord::Migration[5.2]
+  def change
+    create_table :knowledge_points do |t|
+      t.references :curriculum, foreign_key: true
+      t.string :name
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20191217102414_create_knowledge_point_containers.rb

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+class CreateKnowledgePointContainers < ActiveRecord::Migration[5.2]
+  def change
+    create_table :knowledge_point_containers do |t|
+      t.integer :container_id
+      t.string :container_type
+      t.references :knowledge_point, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

spec/models/curriculum_spec.rb

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+require 'rails_helper'
+
+RSpec.describe Curriculum, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/knowledge_point_container_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe KnowledgePointContainer, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/knowledge_point_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe KnowledgePoint, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end