Add issue_customer_relations_contacts linking table

Changelog: added

app/models/customer_relations/contact.rb

@@ -7,6 +7,7 @@ class CustomerRelations::Contact < ApplicationRecord
 
   belongs_to :group, -> { where(type: Group.sti_name) }, foreign_key: 'group_id'
   belongs_to :organization, optional: true
+  has_and_belongs_to_many :issues, join_table: :issue_customer_relations_contacts # rubocop: disable Rails/HasAndBelongsToMany
 
   strip_attributes! :phone, :first_name, :last_name
 

app/models/issue.rb

@@ -81,6 +81,7 @@ class Issue < ApplicationRecord
   has_and_belongs_to_many :self_managed_prometheus_alert_events, join_table: :issues_self_managed_prometheus_alert_events # rubocop: disable Rails/HasAndBelongsToMany
   has_and_belongs_to_many :prometheus_alert_events, join_table: :issues_prometheus_alert_events # rubocop: disable Rails/HasAndBelongsToMany
   has_many :prometheus_alerts, through: :prometheus_alert_events
+  has_and_belongs_to_many :customer_relations_contacts, join_table: :issue_customer_relations_contacts, class_name: 'CustomerRelations::Contact' # rubocop: disable Rails/HasAndBelongsToMany
 
   accepts_nested_attributes_for :issuable_severity, update_only: true
   accepts_nested_attributes_for :sentry_issue

db/migrate/20210922215740_create_issue_customer_relations_contacts.rb

+# frozen_string_literal: true
+
+class CreateIssueCustomerRelationsContacts < Gitlab::Database::Migration[1.0]
+  def change
+    create_table :issue_customer_relations_contacts do |t|
+      t.bigint :issue_id, null: false
+      t.bigint :contact_id, null: false
+      t.timestamps_with_timezone null: false
+
+      t.index :contact_id
+      t.index [:issue_id, :contact_id], unique: true, name: :index_issue_crm_contacts_on_issue_id_and_contact_id
+    end
+  end
+end

db/migrate/20210922220104_add_issue_customer_relations_contacts_foreign_keys.rb

+# frozen_string_literal: true
+
+class AddIssueCustomerRelationsContactsForeignKeys < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_foreign_key :issue_customer_relations_contacts, :issues, column: :issue_id
+    add_concurrent_foreign_key :issue_customer_relations_contacts, :customer_relations_contacts, column: :contact_id
+  end
+
+  def down
+    with_lock_retries do
+      remove_foreign_key_if_exists :issue_customer_relations_contacts, column: :issue_id
+    end
+
+    with_lock_retries do
+      remove_foreign_key_if_exists :issue_customer_relations_contacts, column: :contact_id
+    end
+  end
+end

db/schema_migrations/20210922215740

+7b343a5e1fd2600585d8fe4ef7585f91fb4c72da329b6f9474384f7217381d12
\ No newline at end of file

db/schema_migrations/20210922220104

+ced8a8373bdbf07b2be23701f243f3a9f338776eeaec0a6c4e5cc0e68572a16e
\ No newline at end of file

db/structure.sql

@@ -15077,6 +15077,23 @@ CREATE TABLE issue_assignees (
     issue_id integer NOT NULL
 );
 
+CREATE TABLE issue_customer_relations_contacts (
+    id bigint NOT NULL,
+    issue_id bigint NOT NULL,
+    contact_id bigint NOT NULL,
+    created_at timestamp with time zone NOT NULL,
+    updated_at timestamp with time zone NOT NULL
+);
+
+CREATE SEQUENCE issue_customer_relations_contacts_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+ALTER SEQUENCE issue_customer_relations_contacts_id_seq OWNED BY issue_customer_relations_contacts.id;
+
 CREATE TABLE issue_email_participants (
     id bigint NOT NULL,
     issue_id bigint NOT NULL,
@@ -21338,6 +21355,8 @@ ALTER TABLE ONLY issuable_severities ALTER COLUMN id SET DEFAULT nextval('issuab
 
 ALTER TABLE ONLY issuable_slas ALTER COLUMN id SET DEFAULT nextval('issuable_slas_id_seq'::regclass);
 
+ALTER TABLE ONLY issue_customer_relations_contacts ALTER COLUMN id SET DEFAULT nextval('issue_customer_relations_contacts_id_seq'::regclass);
+
 ALTER TABLE ONLY issue_email_participants ALTER COLUMN id SET DEFAULT nextval('issue_email_participants_id_seq'::regclass);
 
 ALTER TABLE ONLY issue_links ALTER COLUMN id SET DEFAULT nextval('issue_links_id_seq'::regclass);
@@ -22991,6 +23010,9 @@ ALTER TABLE ONLY issuable_slas
 ALTER TABLE ONLY issue_assignees
     ADD CONSTRAINT issue_assignees_pkey PRIMARY KEY (issue_id, user_id);
 
+ALTER TABLE ONLY issue_customer_relations_contacts
+    ADD CONSTRAINT issue_customer_relations_contacts_pkey PRIMARY KEY (id);
+
 ALTER TABLE ONLY issue_email_participants
     ADD CONSTRAINT issue_email_participants_pkey PRIMARY KEY (id);
 
@@ -25351,6 +25373,10 @@ CREATE UNIQUE INDEX index_issuable_slas_on_issue_id ON issuable_slas USING btree
 
 CREATE INDEX index_issue_assignees_on_user_id ON issue_assignees USING btree (user_id);
 
+CREATE UNIQUE INDEX index_issue_crm_contacts_on_issue_id_and_contact_id ON issue_customer_relations_contacts USING btree (issue_id, contact_id);
+
+CREATE INDEX index_issue_customer_relations_contacts_on_contact_id ON issue_customer_relations_contacts USING btree (contact_id);
+
 CREATE UNIQUE INDEX index_issue_email_participants_on_issue_id_and_lower_email ON issue_email_participants USING btree (issue_id, lower(email));
 
 CREATE INDEX index_issue_links_on_source_id ON issue_links USING btree (source_id);
@@ -27394,6 +27420,9 @@ ALTER TABLE ONLY user_interacted_projects
 ALTER TABLE ONLY dast_sites
     ADD CONSTRAINT fk_0a57f2271b FOREIGN KEY (dast_site_validation_id) REFERENCES dast_site_validations(id) ON DELETE SET NULL;
 
+ALTER TABLE ONLY issue_customer_relations_contacts
+    ADD CONSTRAINT fk_0c0037f723 FOREIGN KEY (issue_id) REFERENCES issues(id) ON DELETE CASCADE;
+
 ALTER TABLE ONLY web_hooks
     ADD CONSTRAINT fk_0c8ca6d9d1 FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE;
 
@@ -27706,6 +27735,9 @@ ALTER TABLE ONLY protected_branches
 ALTER TABLE ONLY vulnerabilities
     ADD CONSTRAINT fk_7ac31eacb9 FOREIGN KEY (updated_by_id) REFERENCES users(id) ON DELETE SET NULL;
 
+ALTER TABLE ONLY issue_customer_relations_contacts
+    ADD CONSTRAINT fk_7b92f835bb FOREIGN KEY (contact_id) REFERENCES customer_relations_contacts(id) ON DELETE CASCADE;
+
 ALTER TABLE ONLY vulnerabilities
     ADD CONSTRAINT fk_7c5bb22a22 FOREIGN KEY (due_date_sourcing_milestone_id) REFERENCES milestones(id) ON DELETE SET NULL;
 

spec/lib/gitlab/import_export/all_models.yml

@@ -59,6 +59,7 @@ issues:
 - requirement
 - incident_management_issuable_escalation_status
 - pending_escalations
+- customer_relations_contacts
 work_item_type:
 - issues
 events:

spec/models/customer_relations/contact_spec.rb

@@ -6,6 +6,7 @@ RSpec.describe CustomerRelations::Contact, type: :model do
   describe 'associations' do
     it { is_expected.to belong_to(:group) }
     it { is_expected.to belong_to(:organization).optional }
+    it { is_expected.to have_and_belong_to_many(:issues) }
   end
 
   describe 'validations' do

spec/models/issue_spec.rb

@@ -34,6 +34,7 @@ RSpec.describe Issue do
     it { is_expected.to have_many(:issue_email_participants) }
     it { is_expected.to have_many(:timelogs).autosave(true) }
     it { is_expected.to have_one(:incident_management_issuable_escalation_status) }
+    it { is_expected.to have_and_belong_to_many(:customer_relations_contacts) }
 
     describe 'versions.most_recent' do
       it 'returns the most recent version' do