Rename PagedownFormBuilder to MarkdownFormBuilder

The term 'Pagedown' was originally associated with the pagedown-bootstrap
library, which is no longer in use.

app/assets/javascripts/markdown_editor.js

@@ -2,7 +2,7 @@
  * ToastUi editor initializer
  *
  * This script transforms form textareas created with 
- * "PagedownFormBuilder" into ToastUi markdown editors.
+ * "MarkdownFormBuilder" into ToastUi markdown editors.
  *
  */
 

app/helpers/markdown_form_builder.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-class PagedownFormBuilder < ActionView::Helpers::FormBuilder
+class MarkdownFormBuilder < ActionView::Helpers::FormBuilder
-  def pagedown(method, args = {})
+  def markdown(method, args = {})
     # Adopt simple form builder to work with form_for
     @attribute_name = method
     @input_html_options = args[:input_html]

app/views/exercises/_form.html.slim

@@ -9,7 +9,7 @@
 - execution_environments = ExecutionEnvironment.where.not(file_type_id: nil).select(:file_type_id, :id)
 - file_types = FileType.where.not(file_extension: nil).select(:file_extension, :id)
 
-= form_for(@exercise, data: {execution_environments:, file_types:}, multipart: true, builder: PagedownFormBuilder) do |f|
+= form_for(@exercise, data: {execution_environments:, file_types:}, multipart: true, builder: MarkdownFormBuilder) do |f|
   = render('shared/form_errors', object: @exercise)
   .mb-3
     = f.label(:title, class: 'form-label')
@@ -20,7 +20,7 @@
     .help-block.form-text == t('.hints.internal_title')
   .mb-3
     = f.label(:description, class: 'form-label')
-    = f.pagedown :description
+    = f.markdown :description
   .mb-3
     = f.label(:execution_environment_id, class: 'form-label')
     = f.collection_select(:execution_environment_id, @execution_environments, :id, :name, {include_blank: t('exercises.form.none')}, class: 'form-control')

app/views/proxy_exercises/_form.html.slim

@@ -5,14 +5,14 @@
   - append_javascript_pack_tag('toast-ui')
   - append_stylesheet_pack_tag('toast-ui')
 
-= form_for(@proxy_exercise, multipart: true, builder: PagedownFormBuilder) do |f|
+= form_for(@proxy_exercise, multipart: true, builder: MarkdownFormBuilder) do |f|
   = render('shared/form_errors', object: @proxy_exercise)
   .mb-3
     = f.label(:title, class: 'form-label')
     = f.text_field(:title, class: 'form-control', required: true)
   .mb-3
     = f.label(:description, class: 'form-label')
-    = f.pagedown :description
+    = f.markdown :description
   .mb-3
     = f.label(:algorithm, class: 'form-label')
     = f.collection_select(:algorithm, ProxyExercise.algorithms.map {|algorithm, _id| [t("activerecord.attributes.proxy_exercise.algorithm_type.#{algorithm}"), algorithm] }, :second, :first, {}, class: 'form-control form-control-sm')

app/views/tips/_form.html.slim

@@ -5,14 +5,14 @@
   - append_javascript_pack_tag('toast-ui')
   - append_stylesheet_pack_tag('toast-ui')
 
-= form_for(@tip, builder: PagedownFormBuilder) do |f|
+= form_for(@tip, builder: MarkdownFormBuilder) do |f|
   = render('shared/form_errors', object: @tip)
   .mb-3
     = f.label(:title, class: 'form-label')
     = f.text_field(:title, class: 'form-control', required: false)
   .mb-3
     = f.label(:description, class: 'form-label')
-    = f.pagedown :description
+    = f.markdown :description
   .mb-3
     = f.label(:file_type_id, t('activerecord.attributes.file.file_type_id'), class: 'form-label')
     = f.collection_select(:file_type_id, @file_types, :id, :name, {include_blank: true}, class: 'form-control')