dpc-web/db/migrate/20191017201830_create_organization_user_assignments.rb
class CreateOrganizationUserAssignments < ActiveRecord::Migration[5.2]
def change
remove_column :users, :organization_id
create_table :organization_user_assignments do |t|
t.integer :organization_id, null: false
t.integer :user_id, null: false
t.timestamps
end
add_index :organization_user_assignments, [:organization_id, :user_id], unique: true, name: 'index_org_user_assignments_on_organization_id_and_user_id'
end
end