小程序的实践课程列表接口

app/controllers/weapps/subjects_controller.rb

@@ -3,7 +3,9 @@ class Weapps::SubjectsController < Weapps::BaseController
 
   # 首页
   def index
-
+    subjects = Weapps::SubjectQuery.call(current_laboratory, params)
+    @subject_count = subjects.map(&:id).size
+    @subjects = paginate subjects
   end
 
   # 详情

app/queries/weapps/subject_query.rb

@@ -0,0 +1,37 @@
+class Weapps::SubjectQuery < ApplicationQuery
+  include CustomSortable
+  attr_reader :params
+
+  def initialize(current_laboratory, params)
+    @current_laboratory = current_laboratory
+    @params = params
+  end
+
+  def call
+    subjects = @current_laboratory.subjects
+
+    # 课程体系的过滤
+    if params[:sub_discipline_id].present?
+      subjects = subjects.joins(:sub_disciplines).where(sub_disciplines: {id: params[:sub_discipline_id]})
+    elsif params[:discipline_id].present?
+      subjects = subjects.joins(:sub_disciplines).where(sub_disciplines: {discipline_id: params[:discipline_id]})
+    else
+      subjects = subjects.joins(:sub_discipline_containers).where(sub_discipline_containers: {container_type: "Subject"})
+    end
+
+    subjects = subjects.left_joins(:shixuns).select('subjects.id, subjects.name, subjects.excellent, subjects.stages_count, subjects.status,
+                                                     subjects.shixuns_count, subjects.updated_at, IFNULL(sum(shixuns.myshixuns_count), 0) myshixuns_count')
+                                            .group('subjects.id').order("#{order_type} #{sort_type}")
+    subjects
+  end
+
+  private
+
+  def order_type
+    params[:order] || "updated_at"
+  end
+
+  def sort_type
+    params[:sort] || "desc"
+  end
+end

app/views/weapps/subjects/index.json.jbuilder

@@ -0,0 +1,7 @@
+json.subjects @subjects do |subject|
+  json.(subject, :id, :excellent, :name, :stages_count, :shixuns_count, :myshixuns_count)
+  json.image_url url_to_avatar(subject)
+  json.allow_visit subject.status > 1 || User.current.manager_of_subject?(subject) || User.current.admin?
+end
+
+json.total_count @subject_count

config/routes.rb

@@ -1018,7 +1018,7 @@ Rails.application.routes.draw do
         post :cancel_sticky, on: :collection
       end
 
-      resources :subjects, path: :paths, only: [:create, :update, :edit, :show]
+      resources :subjects, path: :paths, only: [:index, :create, :update, :edit, :show]
 
       resources :courses, only: [:create, :update, :edit, :show] do
         member do