[FINE] Faster report result index pages

app/controllers/application_controller.rb

@@ -297,7 +297,7 @@ def saved_report_paging
     @sb[:pages][:perpage] = settings(:perpage, :reports)
 
     rr = MiqReportResult.find(@sb[:pages][:rr_id])
-    @html = report_build_html_table(rr.report_results,
+    @html = report_build_html_table(rr.report,
                                     rr.html_rows(:page     => @sb[:pages][:current],
                                                  :per_page => @sb[:pages][:perpage]).join)
 

app/controllers/chargeback_controller.rb

@@ -349,17 +349,16 @@ def cb_rpts_fetch_saved_report(id)
       @report_result_id = session[:report_result_id] = rr.id
       session[:report_result_runtime]  = rr.last_run_on
       if rr.status.downcase == "complete"
-        @report = rr.report_results
         session[:rpt_task_id] = nil
-        if @report.blank?
+        unless rr.valid_report_column?
           @saved_reports = cb_rpts_get_all_reps(rr.miq_report_id.to_s)
           rep = MiqReport.find_by_id(rr.miq_report_id)
           if x_active_tree == :cb_reports_tree
             self.x_node = "reports-#{rep.id}"
           end
           return
         else
-          if @report.contains_records?
+          if rr.contains_records?
             @html = report_first_page(rr) # Get the first page of the results
             unless @report.graph.blank?
               @zgraph = true

app/controllers/report_controller/saved_reports.rb

@@ -26,9 +26,8 @@ def fetch_saved_report(id)
       @report_result_id = session[:report_result_id] = rr.id
       session[:report_result_runtime] = rr.last_run_on
       if rr.status.downcase == "complete"
-        @report = rr.report_results
         session[:rpt_task_id] = nil
-        if @report.blank?
+        unless rr.valid_report_column?
           add_flash(_("Saved Report \"%{time}\" not found, Schedule may have failed") %
                     {:time => format_timezone(rr.created_on, Time.zone, "gtl")},
                     :error)
@@ -48,7 +47,7 @@ def fetch_saved_report(id)
           end
           return
         else
-          if @report.contains_records?
+          if rr.contains_records?
             @html = report_first_page(rr)             # Get the first page of the results
             if params[:type]
               @zgraph = nil

app/helpers/application_helper/button/report_download_choice.rb

@@ -1,5 +1,5 @@
 class ApplicationHelper::Button::ReportDownloadChoice < ApplicationHelper::Button::Basic
   def disabled?
-    MiqReportResult.find(@report_result_id).try(:miq_report_result_details).try(:length).to_i == 0
+    !MiqReportResult.find(@report_result_id).try(:miq_report_result_details).try(:exists?)
   end
 end

app/helpers/application_helper/button/report_only.rb

@@ -11,6 +11,6 @@ def disabled?
 
   def report_records?
     @report.present? && @report_result_id.present? &&
-      MiqReportResult.find(@report_result_id).try(:miq_report_result_details).try(:length).to_i > 0
+      MiqReportResult.find(@report_result_id).try(:miq_report_result_details).try(:exists?)
   end
 end

spec/controllers/chargeback_controller_spec.rb

@@ -577,7 +577,8 @@ def convert_chargeback_rate_to_hash(rate)
       miq_task.state_finished
       miq_report_result.report = chargeback_report.to_hash.merge(:extras=> {:total_html_rows => 100})
       miq_report_result.save
-      allow(controller).to receive(:report_first_page)
+      controller.instance_variable_set(:@sb, {})
+      controller.instance_variable_set(:@settings, :perpage => { :reports => 20 })
     end
 
     it "fetch existing report" do

spec/controllers/miq_report_controller/trees_spec.rb

@@ -34,9 +34,12 @@
       before do
         login_as user
         controller.instance_variable_set(:@html, "<h1>Test</h1>")
-        allow(controller).to receive(:report_first_page)
-        allow(report).to receive(:contains_records?).and_return(true)
-        allow_any_instance_of(MiqReportResult).to receive(:report_results).and_return(report)
+        session[:settings] = {:perpage => {:reports => 20}}
+        report_result.report = report.to_hash.merge(:extras=> {:total_html_rows => 100})
+        report_result.save
+        # allow(controller).to receive(:report_first_page)
+        # allow(report).to receive(:contains_records?).and_return(true)
+        # allow_any_instance_of(MiqReportResult).to receive(:report_results).and_return(report)
       end
 
       it 'renders show from CI -> Reports -> Saved Reports' do