1 files changed, 20 insertions, 0 deletions
diff --git a/app/models/customer_relations/issue_contact.rb b/app/models/customer_relations/issue_contact.rb
new file mode 100644
index 00000000000..98faf8d6644
--- /dev/null
+++ b/app/models/customer_relations/issue_contact.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class CustomerRelations::IssueContact < ApplicationRecord
+  self.table_name = "issue_customer_relations_contacts"
+
+  belongs_to :issue, optional: false, inverse_of: :customer_relations_contacts
+  belongs_to :contact, optional: false, inverse_of: :issue_contacts
+
+  validate :contact_belongs_to_issue_group
+
+  private
+
+  def contact_belongs_to_issue_group
+    return unless contact&.group_id
+    return unless issue&.project&.namespace_id
+    return if contact.group_id == issue.project.namespace_id
+
+    errors.add(:base, _('The contact does not belong to the same group as the issue'))
+  end
+end