Add RequestExclusion model

This model will store bs_requests from a staging workflow that want to
be excluded.

Co-authored-by: David Kang <dkang@suse.com>
Co-authored-by: Moisés Déniz Alemán <mdeniz@suse.com>
Co-authored-by: Saray Cabrera Padrón <scabrerapadron@suse.de>
Co-authored-by: Ana María Martínez Gómez <ammartinez@suse.de>

src/api/app/models/bs_request.rb

@@ -96,6 +96,7 @@ class SaveError < APIError
   has_many :target_project_objects, through: :bs_request_actions
 
   belongs_to :staging_project, class_name: 'Project', foreign_key: 'staging_project_id'
+  has_one :request_exclusion, class_name: 'Staging::RequestExclusion', foreign_key: 'bs_request_id', dependent: :destroy
 
   validates :state, inclusion: { in: VALID_REQUEST_STATES }
   validates :creator, presence: true

src/api/app/models/staging/request_exclusion.rb

@@ -0,0 +1,14 @@
+class Staging::RequestExclusion < ApplicationRecord
+  def self.table_name_prefix
+    'staging_'
+  end
+
+  belongs_to :staging_workflow, class_name: 'Staging::Workflow'
+  belongs_to :bs_request
+
+  validates :staging_workflow, :bs_request, :description, presence: true
+  validates :bs_request_id, numericality: true, uniqueness: { scope: :staging_workflow_id, message: 'is already excluded' }
+  validates :description, length: { maximum: 255 }
+
+  delegate :number, to: :bs_request, allow_nil: true
+end

src/api/app/models/staging/workflow.rb

@@ -26,18 +26,20 @@ def ready_to_stage
   end
 
   has_many :staged_requests, class_name: 'BsRequest', through: :staging_projects
+  has_many :request_exclusions, class_name: 'Staging::RequestExclusion', foreign_key: 'staging_workflow_id', dependent: :destroy
+  has_many :excluded_requests, through: :request_exclusions, source: :bs_request
 
   validates :managers_group, presence: true
 
   after_create :create_staging_projects
   before_update :update_staging_projects_managers_group
 
   def unassigned_requests
-    target_of_bs_requests.stageable.where.not(id: ignored_requests | staged_requests)
+    target_of_bs_requests.stageable.where.not(id: excluded_requests | staged_requests)
   end
 
   def ready_requests
-    target_of_bs_requests.ready_to_stage.where.not(id: ignored_requests | staged_requests)
+    target_of_bs_requests.ready_to_stage.where.not(id: excluded_requests | staged_requests)
   end
 
   def ignored_requests

src/api/db/migrate/20181030114152_create_staging_request_exclusions.rb

@@ -0,0 +1,11 @@
+class CreateStagingRequestExclusions < ActiveRecord::Migration[5.2]
+  def change
+    create_table :staging_request_exclusions, id: :integer, options: 'CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ROW_FORMAT=DYNAMIC' do |t|
+      t.references :staging_workflow, index: true, type: :integer, null: false
+      t.references :bs_request, index: true, type: :integer, null: false
+      t.string :description
+
+      t.timestamps
+    end
+  end
+end

src/api/db/structure.sql

@@ -1142,6 +1142,18 @@ CREATE TABLE `sessions` (
   KEY `index_sessions_on_updated_at` (`updated_at`) USING BTREE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ROW_FORMAT=DYNAMIC;
 
+CREATE TABLE `staging_request_exclusions` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `staging_workflow_id` int(11) NOT NULL,
+  `bs_request_id` int(11) NOT NULL,
+  `description` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `created_at` datetime NOT NULL,
+  `updated_at` datetime NOT NULL,
+  PRIMARY KEY (`id`),
+  KEY `index_staging_request_exclusions_on_staging_workflow_id` (`staging_workflow_id`),
+  KEY `index_staging_request_exclusions_on_bs_request_id` (`bs_request_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ROW_FORMAT=DYNAMIC;
+
 CREATE TABLE `staging_workflows` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `project_id` int(11) DEFAULT NULL,
@@ -1426,6 +1438,7 @@ INSERT INTO `schema_migrations` (version) VALUES
 ('20181008150453'),
 ('20181016103905'),
 ('20181025152009'),
+('20181030114152'),
 ('20181113095753');