add template access

app/models/submission.rb

@@ -57,6 +57,8 @@ class Submission < ApplicationRecord
 
   has_many_attached :preview_documents
 
+  has_many :template_accesses, primary_key: :template_id, foreign_key: :template_id, dependent: nil, inverse_of: false
+
   has_many :template_schema_documents,
            ->(e) { where(uuid: (e.template_schema.presence || e.template.schema).pluck('attachment_uuid')) },
            through: :template, source: :documents_attachments

app/models/submitter.rb

@@ -54,6 +54,7 @@ class Submitter < ApplicationRecord
   has_many_attached :documents
   has_many_attached :attachments
   has_many_attached :preview_documents
+  has_many :template_accesses, through: :template
 
   has_many :document_generation_events, dependent: :destroy
   has_many :submission_events, dependent: :destroy

app/models/template.rb

@@ -62,6 +62,7 @@ class Template < ApplicationRecord
 
   has_many :submissions, dependent: :destroy
   has_many :template_sharings, dependent: :destroy
+  has_many :template_accesses, dependent: :destroy
 
   scope :active, -> { where(archived_at: nil) }
   scope :archived, -> { where.not(archived_at: nil) }

app/models/template_access.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: template_accesses
+#
+#  id          :bigint           not null, primary key
+#  created_at  :datetime         not null
+#  updated_at  :datetime         not null
+#  template_id :bigint           not null
+#  user_id     :bigint           not null
+#
+# Indexes
+#
+#  index_template_accesses_on_template_id_and_user_id  (template_id,user_id) UNIQUE
+#
+# Foreign Keys
+#
+#  fk_rails_...  (template_id => templates.id)
+#
+class TemplateAccess < ApplicationRecord
+  ADMIN_USER_ID = -1
+
+  belongs_to :template
+  belongs_to :user, optional: true
+end