Add support to choose the sheet within google spreadsheets

app/controllers/forms_controller.rb

@@ -55,6 +55,6 @@ class FormsController < ApplicationController
   private
 
   def form_params
-    params.require(:form).permit(:title, :thank_you_url, :backend_name, :airtable_table, :airtable_api_key, :airtable_app_key)
+    params.require(:form).permit(:title, :thank_you_url, :backend_name, :google_spreadsheet_sheet, :airtable_table, :airtable_api_key, :airtable_app_key)
   end
 end

app/models/form.rb

@@ -38,9 +38,10 @@ class Form < ApplicationRecord
     backend_name == 'airtable'
   end
 
-  def google
-    backend_name == 'google'
+  def google?
+    backend_name == 'google_sheets'
   end
+  def google; google?; end # TODO: remove this alias
 
   def backend
     @backend ||= SpreadsheetBackends.const_get(backend_name.camelize).new(self)

app/views/forms/edit.html.erb

@@ -52,6 +52,19 @@
           <p class="help">The URL where the user will be redirected after submission</p>
         </div>
 
+        <% if @form.google? %>
+
+          <div class="field">
+            <label class="label">Sheet</label>
+            <div class="control">
+              <%= f.text_field :google_spreadsheet_sheet, class: 'input', autocomplete: 'off' %>
+            </div>
+            <p class="help">Which sheet within the spreadsheet should be used? Defaults to the first sheet. - make sure you enter the name exactly like in your spreadsheet.</p>
+          </div>
+
+        <% end %>
+
+
         <% if @form.airtable? %>
 
           <div class="field">