init project

app/controllers/admins/disciplines_controller.rb

@@ -0,0 +1,77 @@
+class Admins::DisciplinesController < Admins::BaseController
+
+  def index
+    @disciplines = Discipline.all
+  end
+
+  def create
+    name = params[:name].to_s.strip
+    return render_error('名称重复') if Discipline.where(name: name).exists?
+    Discipline.create!(name: name, position: Discipline.all.pluck(:position).max + 1)
+    render_ok
+  end
+
+  def edit
+    @discipline = current_discipline
+  end
+
+  def update
+    begin
+      if params[:discipline] && params[:discipline][:name]
+        name = params[:discipline][:name].to_s.strip
+        current_discipline.update_attributes!(name: name)
+      else
+        ActiveRecord::Base.transaction do
+          current_discipline.update_attributes!(setting_params)
+          current_discipline.sub_disciplines.each do |sub|
+            sub.tag_disciplines.each do |tag|
+              tag.update_attributes!(setting_params)
+            end
+            sub.update_attributes!(setting_params)
+          end
+        end
+      end
+    rescue Exception => e
+      @message = e.message
+    end
+    @disciplines = Discipline.all
+  end
+
+  def destroy
+    @discipline_id = params[:id]
+    ActiveRecord::Base.transaction do
+      Discipline.where("position > #{current_discipline.position}").update_all("position=position-1")
+      current_discipline.destroy!
+    end
+  end
+
+  def adjust_position
+    max_position = Discipline.all.pluck(:position).max
+    opr = params[:opr] || "down"
+    if (params[:opr] == "up" && current_discipline.position == 1) || (params[:opr] == "down" && current_discipline.position == max_position)
+      @message = "超出范围"
+    else
+      ActiveRecord::Base.transaction do
+        if opr == "up"
+          Discipline.find_by("position = #{current_discipline.position - 1}")&.update!(position: current_discipline.position)
+          current_discipline.update!(position: current_discipline.position - 1)
+        else
+          Discipline.find_by("position = #{current_discipline.position + 1}")&.update!(position: current_discipline.position)
+          current_discipline.update!(position: current_discipline.position + 1)
+        end
+      end
+    end
+    @disciplines = Discipline.all
+  rescue Exception => e
+    @message = e.message
+  end
+
+  private
+  def current_discipline
+    @_current_discipline = Discipline.find params[:id]
+  end
+
+  def setting_params
+    params.permit(:shixun, :subject, :question)
+  end
+end