1 files changed, 36 insertions, 0 deletions
diff --git a/app/models/analytics/devops_adoption/segment_selection.rb b/app/models/analytics/devops_adoption/segment_selection.rb
new file mode 100644
index 00000000000..6b70c13a773
--- /dev/null
+++ b/app/models/analytics/devops_adoption/segment_selection.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class Analytics::DevopsAdoption::SegmentSelection < ApplicationRecord
+  ALLOWED_SELECTIONS_PER_SEGMENT = 20
+
+  belongs_to :segment
+  belongs_to :project
+  belongs_to :group
+
+  validates :segment, presence: true
+  validates :project, presence: { unless: :group }
+  validates :project_id, uniqueness: { scope: :segment_id, if: :project }
+  validates :group, presence: { unless: :project }
+  validates :group_id, uniqueness: { scope: :segment_id, if: :group }
+
+  validate :exclusive_project_or_group
+  validate :validate_selection_count
+
+  private
+
+  def exclusive_project_or_group
+    if project.present? && group.present?
+      errors.add(:group, s_('DevopsAdoptionSegmentSelection|The selection cannot be configured for a project and for a group at the same time'))
+    end
+  end
+
+  def validate_selection_count
+    return unless segment
+
+    selection_count_for_segment = self.class.where(segment: segment).count
+
+    if selection_count_for_segment >= ALLOWED_SELECTIONS_PER_SEGMENT
+      errors.add(:segment, s_('DevopsAdoptionSegmentSelection|The maximum number of selections has been reached'))
+    end
+  end
+end