prefill signature

app/controllers/submit_form_controller.rb

@@ -31,6 +31,11 @@ class SubmitFormController < ApplicationController
 
     Submitters::MaybeUpdateDefaultValues.call(@submitter, current_user)
 
+    @attachments_index = ActiveStorage::Attachment.where(record: @submitter.submission.submitters, name: :attachments)
+                                                  .preload(:blob).index_by(&:uuid)
+
+    @signature_attachment = Submitters::MaybeAssignDefaultSignature.call(@submitter, params, @attachments_index)
+
     render(@submitter.submission.template.archived_at? || @submitter.submission.archived_at? ? :archived : :show)
   end
 

app/javascript/form.js

@@ -15,6 +15,7 @@ safeRegisterElement('submission-form', class extends HTMLElement {
     this.app = createApp(Form, {
       submitter: JSON.parse(this.dataset.submitter),
       canSendEmail: this.dataset.canSendEmail === 'true',
+      previousSignatureValue: this.dataset.previousSignatureValue,
       goToLast: this.dataset.goToLast === 'true',
       isDemo: this.dataset.isDemo === 'true',
       attribution: this.dataset.attribution !== 'false',

app/javascript/submission_form/form.vue

@@ -321,7 +321,7 @@
             :key="currentField.uuid"
             v-model="values[currentField.uuid]"
             :field="currentField"
-            :previous-value="previousSignatureValueFor(currentField)"
+            :previous-value="previousSignatureValueFor(currentField) || previousSignatureValue"
             :with-typed-signature="withTypedSignature"
             :attachments-index="attachmentsIndex"
             :button-text="buttonText"
@@ -609,6 +609,11 @@ export default {
       required: false,
       default: ''
     },
+    previousSignatureValue: {
+      type: String,
+      required: false,
+      default: ''
+    },
     allowToSkip: {
       type: Boolean,
       required: false,

app/javascript/submission_form/signature_step.vue

@@ -129,7 +129,7 @@
     <img
       v-if="modelValue || computedPreviousValue"
       :src="attachmentsIndex[modelValue || computedPreviousValue].url"
-      class="mx-auto bg-white border border-base-300 rounded max-h-72"
+      class="mx-auto bg-white border border-base-300 rounded max-h-44"
     >
     <div class="relative">
       <div

app/models/submitter.rb

@@ -50,6 +50,8 @@ class Submitter < ApplicationRecord
   has_many_attached :documents
   has_many_attached :attachments
 
+  has_one_attached :signature
+
   has_many :document_generation_events, dependent: :destroy
   has_many :submission_events, dependent: :destroy
 

app/views/submit_form/_submission_form.html.erb

@@ -1,4 +1,4 @@
 <% data_attachments = attachments_index.values.select { |e| e.record_id == submitter.id }.to_json(only: %i[uuid], methods: %i[url filename content_type]) %>
 <% data_fields = (submitter.submission.template_fields || submitter.submission.template.fields).select { |f| f['submitter_uuid'] == submitter.uuid }.to_json %>
 <% configs = Submitters::FormConfigs.call(submitter) %>
-<submission-form data-is-demo="<%= Docuseal.demo? %>" data-with-confetti="<%= configs[:with_confetti] %>" data-completed-redirect-url="<%= submitter.preferences['completed_redirect_url'] %>" data-completed-message="<%= configs[:completed_message].to_json %>" data-completed-button="<%= configs[:completed_button].to_json %>" data-go-to-last="<%= submitter.preferences.key?('go_to_last') ? submitter.preferences['go_to_last'] : submitter.opened_at? %>" data-submitter="<%= submitter.to_json(only: %i[uuid slug name phone email]) %>" data-can-send-email="<%= Accounts.can_send_emails?(submitter.submission.account) %>" data-attachments="<%= data_attachments %>" data-fields="<%= data_fields %>" data-values="<%= submitter.values.to_json %>" data-with-typed-signature="<%= configs[:with_typed_signature] %>"></submission-form>
+<submission-form data-is-demo="<%= Docuseal.demo? %>" data-with-confetti="<%= configs[:with_confetti] %>" data-completed-redirect-url="<%= submitter.preferences['completed_redirect_url'] %>" data-completed-message="<%= configs[:completed_message].to_json %>" data-completed-button="<%= configs[:completed_button].to_json %>" data-go-to-last="<%= submitter.preferences.key?('go_to_last') ? submitter.preferences['go_to_last'] : submitter.opened_at? %>" data-submitter="<%= submitter.to_json(only: %i[uuid slug name phone email]) %>" data-can-send-email="<%= Accounts.can_send_emails?(submitter.submission.account) %>" data-attachments="<%= data_attachments %>" data-fields="<%= data_fields %>" data-values="<%= submitter.values.to_json %>" data-with-typed-signature="<%= configs[:with_typed_signature] %>" data-previous-signature-value="<%= local_assigns[:signature_attachment]&.uuid %>"></submission-form>

app/views/submit_form/show.html.erb

@@ -2,7 +2,6 @@
 <% content_for(:html_description, "#{@submitter.account.name} has invited you to fill and sign documents online effortlessly with a secure, fast, and user-friendly digital document signing solution.") %>
 <% fields_index = Templates.build_field_areas_index(@submitter.submission.template_fields || @submitter.submission.template.fields) %>
 <% values = @submitter.submission.submitters.reduce({}) { |acc, sub| acc.merge(sub.values) } %>
-<% attachments_index = ActiveStorage::Attachment.where(record: @submitter.submission.submitters, name: :attachments).preload(:blob).index_by(&:uuid) %>
 <% page_blob_struct = Struct.new(:url, :metadata, keyword_init: true) %>
 <div style="max-height: -webkit-fill-available;">
   <div id="scrollbox">
@@ -29,7 +28,7 @@
                 <% next if field['redacted'] && field['submitter_uuid'] != @submitter.uuid %>
                 <% next if value == '{{date}}' && field['submitter_uuid'] != @submitter.uuid %>
                 <% next if field.dig('preferences', 'formula') && field['submitter_uuid'] == @submitter.uuid %>
-                <%= render 'submissions/value', area:, field:, attachments_index:, value:, locale: @submitter.account.locale, timezone: @submitter.account.timezone %>
+                <%= render 'submissions/value', area:, field:, attachments_index: @attachments_index, value:, locale: @submitter.account.locale, timezone: @submitter.account.timezone %>
               <% end %>
             </div>
           </div>
@@ -42,7 +41,7 @@
 <div class="fixed bottom-0 w-full h-0 z-20">
   <div class="mx-auto" style="max-width: 1000px">
     <div class="relative md:mx-32">
-      <%= render 'submission_form', attachments_index:, submitter: @submitter %>
+      <%= render 'submission_form', attachments_index: @attachments_index, submitter: @submitter, signature_attachment: @signature_attachment %>
     </div>
   </div>
 </div>

lib/submitters/maybe_assign_default_signature.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module Submitters
+  module MaybeAssignDefaultSignature
+    module_function
+
+    def call(submitter, params, attachments_index)
+      return if params[:t].present? && params[:t] != SubmissionEvents.build_tracking_param(submitter, 'click_email')
+      return if params[:t].blank? && !submitter.submission_events.exists?(event_type: :click_email)
+
+      signature_attachment = find_previous_signature(submitter)
+
+      return if signature_attachment.blank?
+
+      existing_attachment = attachments_index.values.find { |a| a.blob_id == signature_attachment.blob_id }
+
+      return existing_attachment if existing_attachment
+
+      attachment = submitter.attachments_attachments.create!(blob_id: signature_attachment.blob_id)
+
+      attachments_index[attachment.uuid] = attachment
+
+      attachment
+    end
+
+    def find_previous_signature(submitter)
+      return if submitter.email.blank?
+
+      submitters_query =
+        Submitter.where(email: submitter.email)
+                 .where.not(completed_at: nil)
+                 .where(SubmissionEvent.where(Submitter.arel_table[:id].eq(SubmissionEvent.arel_table[:submitter_id]))
+                                       .where(event_type: :click_email).limit(1).arel.exists)
+
+      ActiveStorage::Attachment.where(name: :signature, record: submitters_query).order(:id).last
+    end
+  end
+end

lib/submitters/submit_values.rb

@@ -32,17 +32,7 @@ module Submitters
       submitter.values.merge!(values)
       submitter.opened_at ||= Time.current
 
-      if params[:completed] == 'true'
-        submitter.completed_at = Time.current
-        submitter.ip = request.remote_ip
-        submitter.ua = request.user_agent
-        submitter.values = merge_default_values(submitter)
-        submitter.values = merge_formula_values(submitter)
-        submitter.values = maybe_remove_condition_values(submitter)
-        submitter.values = submitter.values.transform_values do |v|
-          v == '{{date}}' ? Time.current.in_time_zone(submitter.account.timezone).to_date.to_s : v
-        end
-      end
+      assign_completed_attributes(submitter, request) if params[:completed] == 'true'
 
       ApplicationRecord.transaction do
         validate_values!(values, submitter, params, request)
@@ -55,6 +45,29 @@ module Submitters
       submitter
     end
 
+    def assign_completed_attributes(submitter, request)
+      submitter.completed_at = Time.current
+      submitter.ip = request.remote_ip
+      submitter.ua = request.user_agent
+      submitter.values = merge_default_values(submitter)
+      submitter.values = merge_formula_values(submitter)
+      submitter.values = maybe_remove_condition_values(submitter)
+      submitter.values = submitter.values.transform_values do |v|
+        v == '{{date}}' ? Time.current.in_time_zone(submitter.account.timezone).to_date.to_s : v
+      end
+
+      signature_attachment =
+        submitter.submission.template_fields.reduce(nil) do |_, field|
+          next nil if field['submitter_uuid'] != submitter.uuid || field['type'] != 'signature'
+
+          break submitter.attachments_attachments.find_by(uuid: submitter.values[field['uuid']])
+        end
+
+      submitter.build_signature_attachment(blob_id: signature_attachment.blob_id) if signature_attachment
+
+      submitter
+    end
+
     def normalized_values(params)
       params.fetch(:values, {}).to_unsafe_h.transform_values do |v|
         if params[:cast_boolean] == 'true'