导入课程体系基础数据

app/assets/javascripts/admins/disciplines/index.js

@@ -61,5 +61,64 @@ $(document).on('turbolinks:load', function() {
               data: json
           });
       });
+
+      // 导入学生
+      var $importDisciplineModal = $('.modal.admin-import-discipline-modal');
+      var $importDisciplineForm = $importDisciplineModal.find('form.admin-import-discipline-form');
+
+      $importDisciplineModal.on('show.bs.modal', function(){
+          resetFileInputFunc($importDisciplineModal.find('.upload-file-input'));
+          $importDisciplineModal.find('.file-names').html('选择文件');
+          $importDisciplineModal.find('.upload-file-input').trigger('click');
+      });
+      $importDisciplineModal.on('change', '.upload-file-input', function(e){
+          var file = $(this)[0].files[0];
+          $importDisciplineModal.find('.file-names').html(file ? file.name : '请选择文件');
+      });
+
+      var importDisciplineFormValid = function(){
+          if($importDisciplineForm.find('input[name="file"]').val() == undefined || $importDisciplineForm.find('input[name="file"]').val().length == 0){
+              $importDisciplineForm.find('.error').html('请选择文件');
+              return false;
+          }
+
+          return true;
+      };
+
+      var buildResultMessage = function(data){
+          var messageHtml = "<div>导入结果：成功" + data.success + "条，失败"+ data.fail.length + "条</div>";
+
+          return messageHtml;
+      };
+
+      $importDisciplineModal.on('click', '.submit-btn', function(){
+          $importDisciplineForm.find('.error').html('');
+
+          if (importDisciplineFormValid()) {
+              $('body').mLoading({ text: '正在导入...' });
+
+              $.ajax({
+                  method: 'POST',
+                  dataType: 'json',
+                  url: '/admins/import_disciplines',
+                  data: new FormData($importDisciplineForm[0]),
+                  processData: false,
+                  contentType: false,
+                  success: function(data){
+                      $('body').mLoading('destroy');
+                      $importDisciplineModal.modal('hide');
+
+                      showMessageModal(buildResultMessage(data), function(){
+                          window.location.reload();
+                      });
+                  },
+                  error: function(res){
+                      $('body').mLoading('destroy');
+                      var data = res.responseJSON;
+                      $importDisciplineForm.find('.error').html(data.message);
+                  }
+              });
+          }
+      });
   }
 });

app/controllers/admins/import_disciplines_controller.rb

@@ -0,0 +1,10 @@
+class Admins::ImportDisciplinesController < Admins::BaseController
+  def create
+    return render_error('请上传正确的文件') if params[:file].blank? || !params[:file].is_a?(ActionDispatch::Http::UploadedFile)
+
+    result = Admins::ImportDisciplineService.call(params[:file].to_io)
+    render_ok(result)
+  rescue Admins::ImportDisciplineService::Error => ex
+    render_error(ex)
+  end
+end

app/imports/admins/import_discipline_excel.rb

@@ -0,0 +1,16 @@
+class Admins::ImportDisciplineExcel < BaseImportXlsx
+  DisciplineData = Struct.new(:discipline_name, :sub_discipline_name)
+
+  def read_each(&block)
+    sheet.each_row_streaming(pad_cells: true, offset: 2) do |row|
+      data = row.map(&method(:cell_value))[1..2]
+      block.call DisciplineData.new(*data)
+    end
+  end
+
+  private
+
+  def cell_value(obj)
+    obj&.cell_value
+  end
+end

app/services/admins/import_discipline_service.rb

@@ -0,0 +1,52 @@
+class Admins::ImportDisciplineService < ApplicationService
+  Error = Class.new(StandardError)
+
+  attr_reader :file, :result
+
+  def initialize(file)
+    @file   = file
+    @result = { success: 0, fail: [] }
+  end
+
+  def call
+    raise Error, '文件不存在' if file.blank?
+
+    excel = Admins::ImportDisciplineExcel.new(file)
+    excel.read_each(&method(:save_discipline))
+
+    result
+  rescue ApplicationImport::Error => ex
+    raise Error, ex.message
+  end
+
+  private
+
+  def save_discipline(data)
+    count = 0
+    discipline_name = data.discipline_name.to_s.strip
+    sub_discipline_name = data.sub_discipline_name.to_s.strip
+
+    return unless discipline_name.present?
+    discipline = Discipline.find_by(name: discipline_name)
+    if discipline.blank?
+      discipline = Discipline.create!(name: discipline_name)
+      count += 1
+    end
+
+    if sub_discipline_name.present?
+      sub_discipline = SubDiscipline.find_by(name: discipline_name, discipline: discipline)
+      if sub_discipline.blank?
+        SubDiscipline.create!(name: sub_discipline_name, discipline: discipline)
+        count += 1
+      end
+    end
+
+    result[:success] += 1 if count > 0
+  rescue Exception => ex
+    fail_data = data.as_json
+    fail_data[:data] = fail_data.values.join(',')
+    fail_data[:message] = ex.message
+
+    result[:fail] << fail_data
+  end
+end

app/views/admins/disciplines/index.html.erb

@@ -2,8 +2,11 @@
   <% add_admin_breadcrumb('课程方向', admins_disciplines_path) %>
 <% end %>
 
-<div class="box search-form-container discipline-list-form">
-  <%= javascript_void_link '新增', class: 'btn btn-primary', data: { toggle: 'modal', target: '.admin-create-discipline-modal' } %>
+<div class="box search-form-container discipline-list-form rig">
+  <div class="flex-1">
+    <%= javascript_void_link '新增', class: 'btn btn-primary', data: { toggle: 'modal', target: '.admin-create-discipline-modal' } %>
+  </div>
+  <%= javascript_void_link '导入数据', class: 'btn btn-primary', data: { toggle: 'modal', target: '.admin-import-discipline-modal'} %>
 </div>
 
 <div class="box admin-list-container discipline-list-container">
@@ -11,3 +14,4 @@
 </div>
 
 <%= render 'admins/disciplines/shared/create_discipline_modal' %>
+<%= render partial: 'admins/disciplines/shared/import_discipline_modal' %>

app/views/admins/disciplines/shared/_import_discipline_modal.html.erb

@@ -0,0 +1,30 @@
+<div class="modal fade admin-import-discipline-modal" tabindex="-1" role="dialog" aria-hidden="true">
+  <div class="modal-dialog modal-dialog-centered" role="document">
+    <div class="modal-content">
+      <div class="modal-header">
+        <h5 class="modal-title">导入数据</h5>
+        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+          <span aria-hidden="true">&times;</span>
+        </button>
+      </div>
+      <div class="modal-body">
+        <form class="admin-import-discipline-form" enctype="multipart/form-data">
+          <div class="input-group">
+            <div class="input-group-prepend">
+              <span class="input-group-text">文件</span>
+            </div>
+            <div class="custom-file">
+              <input type="file" name="file" class="upload-file-input" id="import-discipline-input" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet">
+              <label class="custom-file-label file-names" for="import-discipline-input">选择文件</label>
+            </div>
+          </div>
+          <div class="error text-danger"></div>
+        </form>
+      </div>
+      <div class="modal-footer">
+        <button type="button" class="btn btn-secondary" data-dismiss="modal">取消</button>
+        <button type="button" class="btn btn-primary submit-btn">确认</button>
+      </div>
+    </div>
+  </div>
+</div>

config/routes.rb

@@ -1076,6 +1076,7 @@ Rails.application.routes.draw do
         post :reset_login_times
       end
     end
+    resource :import_disciplines, only: [:create]
     resource :import_users, only: [:create]
     resource :import_course_members, only: [:create]
     resources :user_statistics, only: [:index] do