FIX: web_crawlers had been mistakenly removed (#7342)

app/models/report.rb

@@ -374,3 +374,4 @@ require_relative "reports/posts"
 require_relative "reports/time_to_first_response"
 require_relative "reports/topics_with_no_response"
 require_relative "reports/emails"
+require_relative "reports/web_crawlers"

app/models/reports/web_crawlers.rb

@@ -0,0 +1,22 @@
+Report.add_report('web_crawlers') do |report|
+  report.labels = [
+    {
+      type: :string,
+      property: :user_agent,
+      title: I18n.t('reports.web_crawlers.labels.user_agent')
+    },
+    {
+      property: :count,
+      type: :number,
+      title: I18n.t('reports.web_crawlers.labels.page_views')
+    }
+  ]
+
+  report.modes = [:table]
+
+  report.data = WebCrawlerRequest.where('date >= ? and date <= ?', report.start_date, report.end_date)
+    .limit(200)
+    .order('sum_count DESC')
+    .group(:user_agent).sum(:count)
+    .map { |ua, count| { user_agent: ua, count: count } }
+end