From 9a91d360a914c8c34baa321406691b3929a986b7 Mon Sep 17 00:00:00 2001
From: Brandon Dunne <bdunne@redhat.com>
Date: Thu, 8 Aug 2019 09:43:12 -0400
Subject: [PATCH] Merge pull request #19037 from
 yrudman/che-for-existted-sheduler-when-seeding

Fix: do not raise error if schedule for widget exists but not linked
(cherry picked from commit a248ba302ef069a25d4967eee97f363d41d35745)

https://bugzilla.redhat.com/show_bug.cgi?id=1729441
---
 app/models/miq_widget.rb       | 22 ++++++++++++++++++++--
 spec/models/miq_widget_spec.rb | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/app/models/miq_widget.rb b/app/models/miq_widget.rb
index 0d30d0d5be2..3fc35c57009 100644
--- a/app/models/miq_widget.rb
+++ b/app/models/miq_widget.rb
@@ -492,6 +492,10 @@ def self.sync_from_hash(attrs)
     widget
   end
 
+  def filter_for_schedule
+    {"=" => {"field" => "MiqWidget-id", "value" => id}}
+  end
+
   def sync_schedule(schedule_info)
     return if schedule_info.nil?
 
@@ -511,11 +515,12 @@ def sync_schedule(schedule_info)
       raise _("Unsupported interval '%{interval}'") % {:interval => interval}
     end
 
-    sched = MiqSchedule.create!(
+    sched = existing_schedule
+    sched ||= MiqSchedule.create!(
       :name          => description,
       :description   => description,
       :sched_action  => {:method => "generate_widget"},
-      :filter        => MiqExpression.new("=" => {"field" => "MiqWidget-id", "value" => id}),
+      :filter        => MiqExpression.new(filter_for_schedule),
       :resource_type => self.class.name,
       :run_at        => {
         :interval   => {:value => value, :unit  => unit},
@@ -532,6 +537,19 @@ def sync_schedule(schedule_info)
     sched
   end
 
+  def existing_schedule
+    return nil if (sched = MiqSchedule.find_by(:name => description)).nil?
+
+    # return existing sheduler if filter referr to the same widget
+    return sched if sched.filter.exp == filter_for_schedule
+
+    # change name of existed schedule in case it is in use
+    suffix = Time.new.utc.to_s
+    _log.warn("Schedule #{sched.name} already exists, renaming it to `#{sched.name} #{suffix}`")
+    sched.update(:name => "#{sched.name} #{suffix}", :description => "#{sched.description} #{suffix}")
+    nil
+  end
+
   def self.seed
     sync_from_dir
   end
diff --git a/spec/models/miq_widget_spec.rb b/spec/models/miq_widget_spec.rb
index 24295f639f9..c3e1f182da6 100644
--- a/spec/models/miq_widget_spec.rb
+++ b/spec/models/miq_widget_spec.rb
@@ -56,6 +56,40 @@
       '))
     end
 
+    describe "#filter_for_schedule" do
+      it "returns Hash object representing valid MiqExpression" do
+        exp = MiqExpression.new(@widget_chart_vendor_and_guest_os.filter_for_schedule)
+        expect(exp.valid?).to be_truthy
+      end
+    end
+
+    describe "#sync_schedule" do
+      let(:schedule) do
+        filter = @widget_chart_vendor_and_guest_os.filter_for_schedule
+        FactoryBot.create(:miq_schedule, :filter => MiqExpression.new(filter), :resource_type => "MiqWidget",
+                          :name => @widget_chart_vendor_and_guest_os.name)
+      end
+
+      it "uses existing schedule if link between widget and schedule broken" do
+        expect(@widget_chart_vendor_and_guest_os.miq_schedule).to be_nil
+        @widget_chart_vendor_and_guest_os.sync_schedule(:run_at => schedule.run_at)
+
+        expect(MiqSchedule.count).to eq(1)
+        expect(@widget_chart_vendor_and_guest_os.miq_schedule.id).to eq(schedule.id)
+      end
+
+      it "rename existing scheduler by adding timestamp to name if existing scheduler use different filter" do
+        schedule.update(:filter => MiqExpression.new("=" => {"field" => "MiqWidget-id", "value" => 9999}))
+
+        time_now = Time.now.utc
+        Timecop.freeze(time_now) { @widget_chart_vendor_and_guest_os.sync_schedule(:run_at => schedule.run_at) }
+        schedule.reload
+
+        expect(MiqSchedule.count).to eq(2)
+        expect(schedule.name.end_with?(time_now.to_s)).to be_truthy
+      end
+    end
+
     context "#queue_generate_content_for_users_or_group" do
       before do
         @widget = @widget_report_vendor_and_guest_os