AC-14, persist

app/admin/form.rb

@@ -4,7 +4,7 @@
   menu priority: 10
   permit_params :name, :style, :title, :body, :redirect_url, :action, :success, :created_by_id,
     :use_recaptcha, :recaptcha_key, :recaptcha_secret, :origin,
-    form_fields_attributes: [:id, :field_id, :label, :help, :required, :placeholder, :position, :_destroy,
+    form_fields_attributes: [:id, :field_id, :label, :help, :required, :placeholder, :position, :persist, :_destroy,
                              campaign_options_attributes: %i[id campaign_code label position _destroy],],
     campaign_codes: []
 
@@ -87,6 +87,7 @@
         fields_f.input :placeholder, hint: "Override field placeholder."
         fields_f.input :help, hint: "Optional help message."
         fields_f.input :required, as: :boolean, label: "Is field required?"
+        fields_f.input :persist, as: :boolean, label: "Store/retrieve value from other forms?"
         fields_f.has_many :campaign_options, allow_destroy: true, sortable: :position,
                                              heading: "Campaigns" do |campaigns_f|
           campaigns_f.inputs do

app/javascript/campaign-form.js

@@ -57,6 +57,8 @@ if (typeof window.campaignForms === 'undefined') {
               // Disable and hide form
               form.addClass('hidden').find('input, button').prop('disabled', 'disabled')
             }
+
+            // MK: Stow any fields of class "cfpersisted" in well-named sessionStorage key
           },
           error: function (xhr) {
             var errors = xhr.responseJSON || {}
@@ -134,6 +136,10 @@ if (typeof window.campaignForms === 'undefined') {
             $(recaptchaDiv).attr('data-callback', recaptchaCallback)
             window[recaptchaCallback] = window.campaignForms[formId].recaptchaCallback
           }
+
+          // MK: For each field of class "cfpersisted", attempt to retrieve well-named sessionStorage key
+          //     When successful, replace default value and set readonly HTML attribute
+          //     https://stackoverflow.com/questions/7357256/disabled-form-inputs-do-not-appear-in-the-request
         }
       })
     }
@@ -155,4 +161,4 @@ $(document).ready(function() {
             $("[id^='cf_US_State_']").show()
         }
     })
-})
+})

app/views/fields/_input.html.erb

@@ -1,4 +1,4 @@
 <div class="form-group">
   <label for="<%= "cf_#{field.name}_#{field.id}" %>"><%= field.label_value %></label>
-  <input id="<%= "cf_#{field.name}_#{field.id}" %>" class="form-control" type="<%= field.input %>" name="<%= field.name %>" placeholder="<%= field.placeholder_value %>" <%== 'required' if field.required %>>
+  <input id="<%= "cf_#{field.name}_#{field.id}" %>" class="form-control<%= ' cfpersisted' if field.persist %>" type="<%= field.input %>" name="<%= field.name %>" placeholder="<%= field.placeholder_value %>" <%== 'required' if field.required %>>
 </div>

db/migrate/20200727214421_add_persist_to_form_fields.rb

@@ -0,0 +1,5 @@
+class AddPersistToFormFields < ActiveRecord::Migration[6.0]
+  def change
+    add_column :form_fields, :persist, :boolean, default: false
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_07_08_170559) do
+ActiveRecord::Schema.define(version: 2020_07_27_214421) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
@@ -57,6 +57,7 @@
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "placeholder"
+    t.boolean "persist", default: false
     t.index ["field_id"], name: "index_form_fields_on_field_id"
     t.index ["form_id"], name: "index_form_fields_on_form_id"
   end