Finish Post's comments feature for admin page section

Author: mkdika

app/controllers/comments_controller.rb

@@ -0,0 +1,65 @@
+class CommentsController < ApplicationController
+  layout 'mainadmin'
+  before_action :authenticate_user!, :set_paper_trail_whodunnit
+  rescue_from ActiveRecord::RecordNotFound, with: :record_not_found
+
+  def index
+    @comments = Comment.order(:id).all
+  end
+
+  def show
+    @comment = current_comment
+  end
+
+  def new
+    @comment = Comment.new
+  end
+
+  def edit
+    @comment = current_comment
+  end
+
+  def destroy
+    comment = current_comment
+    comment.destroy
+    redirect_to comments_path, notice: "Comment id:#{comment.id} for Post:'#{comment.post.title}' deleted"
+  end
+  
+  def create
+    @comment = Comment.new comment_params
+    if @comment.save
+      redirect_to comment_path(@comment), notice: "Comment id:#{@comment.id} for Post:'#{@comment.post.title}' deleted"
+    else
+      render 'new'
+    end
+  end
+
+  def update
+    @comment = current_comment
+    if @comment.update comment_params
+      redirect_to comment_path(@comment), notice: "Comment id:#{@comment.id} for Post:'#{@comment.post.title}' has been updated"
+    else
+      render 'edit'
+    end
+  end
+
+  def audit_trail
+    comment = current_comment
+    @audit_trail = ApplicationHelper::AuditTrail.to_model comment.versions
+    render 'shared/audit_trail'
+  end
+
+  private
+
+  def current_comment
+    @current_comment ||= Comment.find params[:id]
+  end
+
+  def comment_params
+    params.require(:comment).permit(:name, :email, :content, :post_id)
+  end
+
+  def record_not_found
+    redirect_to comments_path, notice: 'Comments not found'
+  end
+end

app/controllers/posts_controller.rb

@@ -51,6 +51,11 @@ def audit_trail
     render 'shared/audit_trail'
   end
 
+  def comments
+    @post = current_post
+    render 'comments'
+  end
+
   private
 
   def current_post

app/models/comment.rb

@@ -1,6 +1,14 @@
+require 'markdown_helper'
+
 class Comment < ApplicationRecord
+
+  include MarkdownHelper
+
   has_paper_trail
 
   belongs_to :post
+
   validates :email, format: { with: URI::MailTo::EMAIL_REGEXP, allow_blank: true, message: 'email format is not valid' } 
+  validates :name, :content, presence: true
+
 end

app/models/post.rb

@@ -1,4 +1,9 @@
+require 'markdown_helper'
+
 class Post < ApplicationRecord
+
+  include MarkdownHelper
+
   has_paper_trail
 
   belongs_to :category
@@ -19,20 +24,6 @@ def permalink
     super || self.permalink = "#{title.strip.downcase.gsub " ", "_"}"
   end
 
-  def content_to_html
-    renderer = CodeRayify.new(filter_html: true, hard_wrap: true)
-    markdown = Redcarpet::Markdown.new(
-      renderer,
-      fenced_code_blocks: true,
-      autolink: true,
-      tables: true,
-      strikethrough: true,
-      lax_spacing: true,
-      space_after_headers: true,
-    )
-    markdown.render(content).html_safe
-  end
-
   def self.all_release
     release_post = Post.order('release_date DESC').where(release: true)
     release_post.map do |p|
@@ -46,10 +37,4 @@ def self.all_release
       }
     end
   end
-
-  class CodeRayify < Redcarpet::Render::HTML
-    def block_code(code, language)
-      CodeRay.scan(code, language).div
-    end
-  end
 end

app/views/admin/index.html.slim

@@ -1,5 +1,6 @@
 - replace :title, "Dashboard"
-- replace :content do
+- replace :admin_content do
   .column
-    .div
-      | Welcome, Dashboard is not available yet!
+    h1.title.is-size-5-mobile.is-size-3-desktop.has-text-grey-light.has-text-centered
+      br
+      | Welcome, no dashboard available!

app/views/comments/_form.html.slim

@@ -0,0 +1,30 @@
+= form_for @comment do |f|
+  .field
+    = f.label "Name", class: "label"
+    .control
+      = f.text_field :name, class: "input #{ @comment.errors[:name].any? ? 'is-danger' : '' }"
+      - if @comment.errors[:name]
+        p.help.is-danger
+          = @comment.errors[:name].join(', ')
+  .field
+    = f.label "Email", class: "label"
+    .control
+      = f.text_field :email, class: "input #{ @comment.errors[:email].any? ? 'is-danger' : '' }"
+      - if @comment.errors[:email]
+        p.help.is-danger
+          = @comment.errors[:email].join(', ')
+  .field
+    = f.label "Post", class: "label"
+    .control
+      .select
+        = f.collection_select :post_id, Post.order(:permalink).all, :id, :permalink, include_blank: false
+  .field
+    = f.label "Content", class: "label"
+    .control
+      = f.text_area :content, rows: 8, class: "textarea #{ @comment.errors[:content].any? ? 'is-danger' : ''}"
+      - if @comment.errors[:content]
+        p.help.is-danger
+          = @comment.errors[:content].join(', ')
+
+  div
+    = f.submit button_text, class: "button is-primary is-rounded"

app/views/comments/edit.html.slim

@@ -0,0 +1,4 @@
+- replace :title, "Comment (Edit)"
+- replace :admin_content do
+  .column.is-4
+    = render partial: 'form', locals: {button_text: 'Update'}

app/views/comments/index.html.slim

@@ -0,0 +1,29 @@
+- replace :title, "Comments"
+- replace :admin_content do
+  .column
+      div
+        = link_to 'New', new_comment_path(@comment), class: "button is-rounded is-primary"
+      br
+      table.table.is-striped.is-narrow
+        thead
+          tr
+            th Date
+            th Name
+            th Email
+            th Post Title
+        tbody
+          - @comments.each do |comment|
+            tr
+              td
+                = comment.created_at.strftime("%Y-%-m-%-d %H:%M")
+              td
+                = comment.name
+              td
+                = comment.email
+              td
+                = comment.post.title
+              td
+                = link_to 'detail', comment_path(comment), class: "button is-info"
+      div
+        | Size:  
+        b = @comments.size

app/views/comments/new.html.slim

@@ -0,0 +1,4 @@
+- replace :title, "Comment (New)"
+- replace :admin_content do
+  .column.is-4
+    = render partial: 'form', locals: {button_text: 'Create'}

app/views/comments/show.html.slim

@@ -0,0 +1,48 @@
+- replace :title, "Comment"
+- replace :admin_content do
+  .column
+    table.table.is-narrow.is-hoverable
+        tbody
+          tr
+            td.has-text-weight-semibold Id
+            td
+              | :
+            td = @comment.id
+          tr
+            td.has-text-weight-semibold Name
+            td
+              | :
+            td = @comment.name
+          tr
+            td.has-text-weight-semibold Email
+            td
+              | :
+            td = @comment.email
+          tr
+            td.has-text-weight-semibold Post
+            td
+              | :
+            td
+              = link_to "#{@comment.post.title}", post_path(@comment.post)
+          tr
+            td.has-text-weight-semibold Created at
+            td
+              | :
+            td = @comment.created_at
+    article.message.is-dark
+      .message-header
+        | Content
+      .message-body
+        .content
+          = @comment.content_to_html
+    br
+    .field.is-grouped
+      p.control
+        div
+          = link_to 'Edit', edit_comment_path(@comment), class: "button is-primary is-rounded"
+      p.control
+        div
+          = link_to 'Delete', comment_path(@comment), method: :delete, class: "button is-warning is-rounded", data: {confirm: "Confirmation to delete id:'#{@comment.id}'?"}
+      p.control
+        div
+          = link_to 'Audit Trail', audit_trail_comment_path(@comment), class: "button is-info is-rounded"