Add organizations table and model

Changelog: added

app/models/customer_relations/organization.rb

+# frozen_string_literal: true
+
+class CustomerRelations::Organization < ApplicationRecord
+  self.table_name = "customer_relations_organizations"
+
+  belongs_to :group, -> { where(type: 'Group') }, foreign_key: 'group_id'
+
+  before_validation :strip_whitespace!
+
+  enum state: {
+    inactive: 0,
+    active: 1
+  }
+
+  validates :group, presence: true
+  validates :name, presence: true
+  validates :name, uniqueness: { case_sensitive: false, scope: [:group_id] }
+  validates :name, length: { maximum: 255 }
+  validates :description, length: { maximum: 1024 }
+
+  def self.find_by_name(group_id, name)
+    where(group: group_id)
+    .where('LOWER(name) = LOWER(?)', name)
+  end
+
+  private
+
+  def strip_whitespace!
+    name&.strip!
+  end
+end

db/migrate/20210804200114_create_customer_relations_organizations.rb

+# frozen_string_literal: true
+
+class CreateCustomerRelationsOrganizations < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  def up
+    create_table_with_constraints :customer_relations_organizations do |t|
+      t.references :group, index: false, null: false, foreign_key: { to_table: :namespaces, on_delete: :cascade }
+      t.timestamps_with_timezone null: false
+      t.integer :state, limit: 1, default: 1, null: false
+      t.decimal :default_rate, precision: 18, scale: 2
+      t.text :name, null: false
+      t.text :description
+
+      t.text_limit :name, 255
+      t.text_limit :description, 1024
+
+      t.index 'group_id, LOWER(name)', unique: true, name: :index_customer_relations_organizations_on_unique_name_per_group
+    end
+  end
+
+  def down
+    with_lock_retries do
+      drop_table :customer_relations_organizations
+    end
+  end
+end

db/schema_migrations/20210804200114

+db62fb6413db4be5e1013bccf16b0c3a66c9aaf9f3d646f42442be16c511af5f
\ No newline at end of file

db/structure.sql

@@ -12058,6 +12058,28 @@ CREATE SEQUENCE custom_emoji_id_seq
 
 ALTER SEQUENCE custom_emoji_id_seq OWNED BY custom_emoji.id;
 
+CREATE TABLE customer_relations_organizations (
+    id bigint NOT NULL,
+    group_id bigint NOT NULL,
+    created_at timestamp with time zone NOT NULL,
+    updated_at timestamp with time zone NOT NULL,
+    state smallint DEFAULT 1 NOT NULL,
+    default_rate numeric(18,2),
+    name text NOT NULL,
+    description text,
+    CONSTRAINT check_2ba9ef1c4c CHECK ((char_length(name) <= 255)),
+    CONSTRAINT check_e476b6058e CHECK ((char_length(description) <= 1024))
+);
+
+CREATE SEQUENCE customer_relations_organizations_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+ALTER SEQUENCE customer_relations_organizations_id_seq OWNED BY customer_relations_organizations.id;
+
 CREATE TABLE dast_profile_schedules (
     id bigint NOT NULL,
     project_id bigint NOT NULL,
@@ -20179,6 +20201,8 @@ ALTER TABLE ONLY csv_issue_imports ALTER COLUMN id SET DEFAULT nextval('csv_issu
 
 ALTER TABLE ONLY custom_emoji ALTER COLUMN id SET DEFAULT nextval('custom_emoji_id_seq'::regclass);
 
+ALTER TABLE ONLY customer_relations_organizations ALTER COLUMN id SET DEFAULT nextval('customer_relations_organizations_id_seq'::regclass);
+
 ALTER TABLE ONLY dast_profile_schedules ALTER COLUMN id SET DEFAULT nextval('dast_profile_schedules_id_seq'::regclass);
 
 ALTER TABLE ONLY dast_profiles ALTER COLUMN id SET DEFAULT nextval('dast_profiles_id_seq'::regclass);
@@ -21458,6 +21482,9 @@ ALTER TABLE ONLY csv_issue_imports
 ALTER TABLE ONLY custom_emoji
     ADD CONSTRAINT custom_emoji_pkey PRIMARY KEY (id);
 
+ALTER TABLE ONLY customer_relations_organizations
+    ADD CONSTRAINT customer_relations_organizations_pkey PRIMARY KEY (id);
+
 ALTER TABLE ONLY dast_profile_schedules
     ADD CONSTRAINT dast_profile_schedules_pkey PRIMARY KEY (id);
 
@@ -23557,6 +23584,8 @@ CREATE INDEX index_custom_emoji_on_creator_id ON custom_emoji USING btree (creat
 
 CREATE UNIQUE INDEX index_custom_emoji_on_namespace_id_and_name ON custom_emoji USING btree (namespace_id, name);
 
+CREATE UNIQUE INDEX index_customer_relations_organizations_on_unique_name_per_group ON customer_relations_organizations USING btree (group_id, lower(name));
+
 CREATE UNIQUE INDEX index_cycle_analytics_stage_event_hashes_on_hash_sha_256 ON analytics_cycle_analytics_stage_event_hashes USING btree (hash_sha256);
 
 CREATE UNIQUE INDEX index_daily_build_group_report_results_unique_columns ON ci_daily_build_group_report_results USING btree (project_id, ref_path, date, group_name);
@@ -27801,6 +27830,9 @@ ALTER TABLE ONLY jira_connect_subscriptions
 ALTER TABLE ONLY fork_network_members
     ADD CONSTRAINT fk_rails_a40860a1ca FOREIGN KEY (fork_network_id) REFERENCES fork_networks(id) ON DELETE CASCADE;
 
+ALTER TABLE ONLY customer_relations_organizations
+    ADD CONSTRAINT fk_rails_a48597902f FOREIGN KEY (group_id) REFERENCES namespaces(id) ON DELETE CASCADE;
+
 ALTER TABLE ONLY operations_feature_flag_scopes
     ADD CONSTRAINT fk_rails_a50a04d0a4 FOREIGN KEY (feature_flag_id) REFERENCES operations_feature_flags(id) ON DELETE CASCADE;
 

spec/factories/customer_relations/organizations.rb

+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :organization, class: 'CustomerRelations::Organization' do
+    group
+
+    name { generate(:name) }
+  end
+end

spec/models/customer_relations/organization_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe CustomerRelations::Organization, type: :model do
+  describe 'associations' do
+    it { is_expected.to belong_to(:group).with_foreign_key('group_id') }
+  end
+
+  describe 'validations' do
+    subject { create(:organization) }
+
+    it { is_expected.to validate_presence_of(:group) }
+    it { is_expected.to validate_presence_of(:name) }
+    it { is_expected.to validate_uniqueness_of(:name).case_insensitive.scoped_to([:group_id]) }
+    it { is_expected.to validate_length_of(:name).is_at_most(255) }
+    it { is_expected.to validate_length_of(:description).is_at_most(1024) }
+  end
+
+  describe '#name' do
+    it 'strips name' do
+      organization = described_class.new(name: '   GitLab   ')
+      organization.valid?
+
+      expect(organization.name).to eq('GitLab')
+    end
+  end
+
+  describe '#find_by_name' do
+    let!(:group) { create(:group) }
+    let!(:organiztion1) { create(:organization, group: group, name: 'Test') }
+    let!(:organiztion2) { create(:organization, group: create(:group), name: 'Test') }
+
+    it 'strips name' do
+      expect(described_class.find_by_name(group.id, 'TEST')).to eq([organiztion1])
+    end
+  end
+end