Fix js not reload bug. (not finish)

app/models/coloncancerpredictfields2s.rb

@@ -9,6 +9,7 @@ class Coloncancerpredictfields2s
   AdvanceFields = ["revert_value","map_values","coloncancer_predict_mapping_file2"]
   TherapyFields = ["variable","name","hint","comment_text","choice_fields","lpv_impact","active_choice","disable_condition"]
   TherapyOnly = ["lpv_impact","active_choice","disable_condition"]
+  JSFileName = "cc2_tool_js_filename.txt"
   field :title ,type:String ,default:""
   field :advance_mode, type: Boolean, default: false
   field :form_show ,  :type=> Hash ,default: {
@@ -218,6 +219,50 @@ class Coloncancerpredictfields2s
     self.lpv_calc = get_years_settings_dict
     self.generate_eval_formula
   end
+  def reload_any_asset(path, type=nil, force_reload=false)
+    env = Rails.application.assets
+    new_env = Sprockets::Environment.new(Rails.root.to_s) do |env|
+      env.version = ::Rails.env
+      tmp_path = "#{Rails.application.config.root}/tmp/cache/assets/#{::Rails.env}"
+      env.cache = ::Sprockets::Cache::FileStore.new(tmp_path)
+      env.context_class.class_eval do
+        include ::Sprockets::Rails::Helper
+      end
+    end
+    new_env.config = env.config
+    stats = env.cached.instance_variable_get(:@stats)
+    new_path = path.sub(/\.erb$/,'')
+    if force_reload || (stats && stats[path]) #Need reload asset
+      if type.nil?
+        ext = File.extname(new_path)
+        env.mime_types.each do |t, h|
+          if h[:extensions].include?(ext)
+            type = t
+            break
+          end
+        end
+      end
+      if type
+        full_path = 'file://'+path+'?type='+type
+        uris = env.cached.instance_variable_get(:@uris)
+        keys = uris.keys.select{|k| k.include?(full_path)}
+        asset = new_env.load(full_path)
+        if keys.count != 0
+          keys.each do |k|
+            uris[k] = asset
+          end
+        end
+        new_path = new_path.sub(/\.[^.]+$/){|ext| '-' + asset.digest + ext}
+        File.binwrite(new_path, asset.to_s)
+        yield new_path if block_given?
+      end
+    end
+  end
+  def reload_js_asset(path, force_reload=false)
+    reload_any_asset(path, 'application/javascript', force_reload) do |new_path|
+      File.open("#{Rails.root}/public/#{JSFileName}",'w+'){|f| f.write(new_path)}
+    end
+  end
   def generate_eval_formula
     eval_hidden_variables = "def eval_hidden_variables(result); #{self.tmp_hidden_variables_for_ruby}; end"
     Coloncancerpredict2sController.module_eval(eval_hidden_variables)
@@ -343,7 +388,7 @@ class Coloncancerpredictfields2s
     org_str.insert(st, replace_str)
     org_str
   end
-  def auto_write_predict_js
+  def auto_write_predict_js(force_reload=true)
     js_codes = generate_jscode
     module_app_path = Pathname.new(File.expand_path(__dir__)).dirname.dirname.to_s
     save_path = module_app_path + '/app/assets/javascripts/colon_cancer_predict2.js'
@@ -409,6 +454,9 @@ class Coloncancerpredictfields2s
     end
     if need_write
       File.write(save_path,file_texts)
+      reload_js_asset(save_path, force_reload)
+    elsif !(File.exist?("#{Rails.root}/public/#{JSFileName}"))
+      File.open("#{Rails.root}/public/#{JSFileName}.txt",'w+'){|f| f.write(save_path)}
     end
   end
   def get_years_settings_dict