Support filter_record_transformer

Signed-off-by: Kenji Okimoto <okimoto@clear-code.com>

app/controllers/fluentd/settings/filter_record_transformer_controller.rb

@@ -6,4 +6,9 @@ class Fluentd::Settings::FilterRecordTransformerController < ApplicationControll
   def target_class
     Fluentd::Setting::FilterRecordTransformer
   end
+
+  def setting_params
+    permit_params = target_class.permit_params + [:record]
+    params.require(:setting).permit(*permit_params)
+  end
 end

app/models/concerns/fluentd/setting/plugin_config.rb

@@ -74,7 +74,16 @@ class Fluentd
             section_class.new(_section_params).to_config
           end.compact
         end
-        attrs = params.to_h.reject do |key, value|
+        params = params.to_h
+        if plugin_type == "filter" && plugin_name == "record_transformer"
+          record_params = {}
+          params.delete("record").lines.each do |line|
+            k, v = line.split(" ", 2)
+            record_params[k] = v
+          end
+          elements << config_element("record", "", record_params, [])
+        end
+        attrs = params.reject do |key, value|
           skip?(key.to_sym, value)
         end
         return attrs, elements

app/models/fluentd/setting/filter_record_transformer.rb

@@ -5,6 +5,8 @@ class Fluentd
 
       register_plugin("filter", "record_transformer")
 
+      attribute(:record, :string)
+
       def self.initial_params
         {
         }

app/views/fluentd/settings/filter_record_transformer/_form.html.haml

@@ -0,0 +1,20 @@
+= render "shared/setting_errors"
+
+- # NOTE: plugin_setting_form_action_url is defined at SettingConcern
+= form_with(model: setting, scope: "setting", url: plugin_setting_form_action_url(fluentd), local: true, class: "ignore-rails-error-div", builder: FluentdFormBuilder) do |f|
+  - setting.common_options.each do |key|
+    = f.field(key)
+
+  .form-group
+    = f.label(:record, nil, data: { toggle: "tooltip", placement: "right"}, title: "considered to be new key-value pairs")
+    = f.text_area(:record, class: "form-control")
+
+  .card.card-body.bg-light
+    %h4{"data-toggle" => "collapse", "href" => "#advanced-setting"}
+      = icon('fa-caret-down')
+      = t('terms.advanced_setting')
+    #advanced-setting.collapse
+      - setting.advanced_options.each do |key|
+        = f.field(key)
+
+  = f.submit t('fluentd.common.finish'), class: "btn btn-lg btn-primary pull-right"