From edec4b9a3b9f940825a1afaa43d1ef14afa12046 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=82=B1=E5=8D=9A=E4=BA=9E?= <naruto0426@gmail.com>
Date: Wed, 31 Aug 2022 13:54:58 +0800
Subject: [PATCH] accelerate export speed

---
 .../admin/event_news/export_excel.xlsx.axlsx  | 48 +++++++++++++------
 1 file changed, 33 insertions(+), 15 deletions(-)

diff --git a/app/views/admin/event_news/export_excel.xlsx.axlsx b/app/views/admin/event_news/export_excel.xlsx.axlsx
index ff991de..2cdfb6a 100644
--- a/app/views/admin/event_news/export_excel.xlsx.axlsx
+++ b/app/views/admin/event_news/export_excel.xlsx.axlsx
@@ -171,10 +171,22 @@ wb.add_worksheet(name: "EventNewsModule") do |sheet|
     {"$match" => {"taggable_id"=>{"$in"=>@event_news.pluck(:id)}}},
     {"$group" => {"_id"=>"$taggable_id","children"=>{"$push"=>"$tag_id"}}}
     ]).map{|v| [v['_id'],v['children']]}.to_h
+  event_carousel_image_map = EventCarouselImage.collection.aggregate([
+    {"$sort" => {"created_at" => 1}},
+    {"$group" => {"_id"=>"$event_news_id","children"=>{"$push"=>"$$ROOT"}}}
+    ]).map{|v| [v['_id'],v['children']]}.to_h
+  event_news_files_map = EventNewsFile.collection.aggregate([
+    {"$sort" => {"created_at" => 1}},
+    {"$group" => {"_id"=>"$event_news_id","children"=>{"$push"=>"$$ROOT"}}}
+    ]).map{|v| [v['_id'],v['children']]}.to_h
+  event_news_links_map = EventNewsLink.collection.aggregate([
+    {"$sort" => {"created_at" => 1}},
+    {"$group" => {"_id"=>"$event_news_id","children"=>{"$push"=>"$$ROOT"}}}
+    ]).map{|v| [v['_id'],v['children']]}.to_h
   @event_news.each do |anns|
     row = []
     row << categories_ids_map[anns.category_id]
-    t = Array(tag_anns_map[anns.id]).map do |tag_id|
+    t = tag_anns_map[anns.id].to_a.map do |tag_id|
       tag_ids_map[tag_id]
     end
     row << t.join(",")
@@ -200,38 +212,44 @@ wb.add_worksheet(name: "EventNewsModule") do |sheet|
     row << anns.notes_translations["en"]
     row << anns.notes_translations["zh_tw"]
 
-    links = anns.event_news_links.asc(:created_at)
-    t = links.collect{|l|l.url}
+    links = event_news_links_map[anns.id].to_a
+    t = links.collect{|l|l['url']}
     row << t.join(";")
-    t = links.collect{|l|l.title_translations["en"]}
+    t = links.collect{|l|l['title']["en"] rescue ''}
     row << t.join(";")
-    t = links.collect{|l|l.title_translations["zh_tw"]}
+    t = links.collect{|l|l['title']["zh_tw"] rescue ''}
     row << t.join(";")
     
-    files = anns.event_news_files.asc(:created_at)
-    t = files.collect{|f|("http://" + request.host_with_port + f.file.url rescue nil)}
+    files = event_news_files_map[anns.id].to_a
+    t = files.collect{|f| f['file'] ? nil : ("http://" + request.host_with_port + "/uploads/event_news_file/file/#{f['_id']}/#{f['file']}" rescue nil)}
     t.delete(nil)
     row << t.join(";")
-    t = files.collect{|l|l.description_translations["en"]}
+    t = files.collect{|l| l['file'] ? nil : l['description']["en"] rescue ''}
+    t.delete(nil)
     row << t.join(";")
-    t = files.collect{|l|l.description_translations["zh_tw"]}
+    t = files.collect{|l| l['file'] ? nil : l['description']["zh_tw"] rescue ''}
+    t.delete(nil)
     row << t.join(";")
-    t = files.collect{|l|l.title_translations["en"]}
+    t = files.collect{|l| l['file'] ? nil : l['title']["en"] rescue ''}
+    t.delete(nil)
     row << t.join(";")
-    t = files.collect{|l|l.title_translations["zh_tw"]}
+    t = files.collect{|l| l['file'] ? nil : l['title']["zh_tw"] rescue ''}
+    t.delete(nil)
     row << t.join(";")
     row << anns.place_translations["en"]
     row << anns.place_translations["zh_tw"]
 
     row << (anns.event_end_date.strftime("%Y/%m/%d %H:%M") rescue "")
 
-    carousel_images = anns.event_carousel_images.asc(:created_at)
-    t = carousel_images.collect{|f|("http://" + request.host_with_port + f.file.url rescue nil)}
+    carousel_images = event_carousel_image_map[anns.id].to_a
+    t = carousel_images.collect{|f| f['file'] ? nil : ("http://" + request.host_with_port + "/uploads/event_carousel_image/file/#{f['_id']}/#{f['file']}" rescue nil)}
     t.delete(nil)
     row << t.join(";")
-    t = carousel_images.collect{|l|l.description_translations["en"]}
+    t = carousel_images.collect{|l| l['file'] ? nil : l['description']["en"] rescue ''}
+    t.delete(nil)
     row << t.join(";")
-    t = carousel_images.collect{|l|l.description_translations["zh_tw"]}
+    t = carousel_images.collect{|l| l['file'] ? nil : l['description']["zh_tw"] rescue ''}
+    t.delete(nil)
     row << t.join(";")
     sheet.add_row row
   end