Fix displaying blocked issues on the board

- add state argument to IssueLink.blocked_issue_ids

changelogs/unreleased/207087-blocked-status-issue.yml

+---
+title: Don't show issue as blocked on the issue board if blocking issue is closed
+merge_request: 25817
+author:
+type: fixed

ee/app/models/issue_link.rb

@@ -33,13 +33,28 @@ class IssueLink < ApplicationRecord
 
   def self.blocked_issue_ids(issue_ids)
     from_union([
-      IssueLink.select('target_id as issue_id').where(link_type: IssueLink::TYPE_BLOCKS).where(target_id: issue_ids),
-      IssueLink.select('source_id as issue_id').where(link_type: IssueLink::TYPE_IS_BLOCKED_BY).where(source_id: issue_ids)
+      blocked_issues(issue_ids, IssueLink::TYPE_BLOCKS),
+      blocked_issues(issue_ids, IssueLink::TYPE_IS_BLOCKED_BY)
     ]).pluck(:issue_id)
   end
 
   private
 
+  def self.blocked_issues(issue_ids, link_type)
+    if link_type == IssueLink::TYPE_BLOCKS
+      blocked_key = :target_id
+      blocking_key = :source_id
+    else
+      blocked_key = :source_id
+      blocking_key = :target_id
+    end
+
+    select("#{blocked_key} as issue_id")
+      .where(link_type: link_type).where(blocked_key => issue_ids)
+      .joins("INNER JOIN issues ON issues.id = issue_links.#{blocking_key}")
+      .where('issues.state_id' => Issuable::STATE_ID_MAP[:opened])
+  end
+
   def check_self_relation
     return unless source && target
 

ee/spec/controllers/boards/issues_controller_spec.rb

@@ -50,21 +50,26 @@ describe Boards::IssuesController do
           expect(development.issues.map(&:relative_position)).not_to include(nil)
         end
 
-        it 'returns blocked status for each issue' do
+        it 'returns blocked status for each issue where the blocking issue is still opened' do
           issue1 = create(:labeled_issue, project: project_1, labels: [development], relative_position: 1)
           issue2 = create(:labeled_issue, project: project_1, labels: [development], relative_position: 2)
           issue3 = create(:labeled_issue, project: project_1, labels: [development], relative_position: 3)
+          issue4 = create(:labeled_issue, project: project_1, labels: [development], relative_position: 4)
+          closed_issue = create(:issue, :closed, project: project_1)
+
           create(:issue_link, source: issue1, target: issue2, link_type: IssueLink::TYPE_IS_BLOCKED_BY)
           create(:issue_link, source: issue2, target: issue3, link_type: IssueLink::TYPE_BLOCKS)
+          create(:issue_link, source: issue4, target: closed_issue, link_type: IssueLink::TYPE_IS_BLOCKED_BY)
 
           list_issues user: user, board: board, list: list2
 
           expect(response).to match_response_schema('entities/issue_boards')
           issues = json_response['issues']
-          expect(issues.length).to eq 3
+          expect(issues.length).to eq 4
           expect(issues[0]['blocked']).to be_truthy
           expect(issues[1]['blocked']).to be_falsey
           expect(issues[2]['blocked']).to be_truthy
+          expect(issues[3]['blocked']).to be_falsey
         end
 
         context 'with search param' do

ee/spec/models/issue_link_spec.rb

@@ -56,8 +56,9 @@ describe IssueLink do
       link1 = create(:issue_link, link_type: described_class::TYPE_BLOCKS)
       link2 = create(:issue_link, link_type: described_class::TYPE_IS_BLOCKED_BY)
       link3 = create(:issue_link, link_type: described_class::TYPE_RELATES_TO)
+      link4 = create(:issue_link, source: create(:issue, :closed), link_type: described_class::TYPE_BLOCKS)
 
-      expect(described_class.blocked_issue_ids([link1.target_id, link2.source_id, link3.source_id]))
+      expect(described_class.blocked_issue_ids([link1.target_id, link2.source_id, link3.source_id, link4.target_id]))
         .to match_array([link1.target_id, link2.source_id])
     end
   end