数据首页筛选优化

app/controllers/statistics_controller.rb

@@ -103,11 +103,11 @@ class StatisticsController < ApplicationController
   end
 
   def get_sub_category
-    if params[:main_category_id] == "-1"
-      @sub_categories = SubCategory.all
-    else
+    if params[:main_category_id].present?
       main_category = MainCategory.find(params[:main_category_id])
       @sub_categories = main_category.sub_categories
+    else
+      @sub_categories = SubCategory.all
     end
     respond_to do |format|
       format.js

app/views/statistics/_form.html.erb

@@ -6,7 +6,6 @@
       <% if @statistic.errors.any? %>
           <div id="error_explanation">
             <h2><%= pluralize(@statistic.errors.count, "error") %> prohibited this statistic from being saved:</h2>
-
             <ul>
               <% @statistic.errors.full_messages.each do |msg| %>
                   <li><%= msg %></li>

app/views/statistics/_sub_categories_list.html.erb

@@ -1,4 +1,4 @@
-<span class="active">不限</span>
+<span class="active" onclick="get_sub_categories_list('')">不限</span>
 <% @sub_categories.each do |mc| %>
     <span onclick="get_sub_categories_list(<%= mc.id %>)"><%= mc.name %></span>
 <% end %>

app/views/statistics/index.html.erb

@@ -3,7 +3,7 @@
   <div class="data_half cl">
     <span class="fl data_name">数据类型</span>
     <div class="fl data_line">
-      <span class="active" onclick="get_sub_categories(-1)">不限</span>
+      <span class="active" onclick="get_sub_categories('')">不限</span>
       <% @main_categories.each do |mc| %>
           <span onclick="get_sub_categories(<%= mc.id %>);"><%= mc.name %></span>
       <% end %>