Added blog post commenting

12 files changed, 220 insertions, 7 deletions

@@ -219,3 +219,65 @@
     margin-left: 1.5em;
   }
 }
+
+.blog-comment {
+  margin: 0 1em;
+
+  .comment-avatar {
+    float: right;
+    margin-top: 1em;
+  }
+}
+
+#comment-form {
+  fieldset {
+    border: 0;
+
+    &#comment-body-field {
+      label {
+        display: none;
+      }
+
+      textarea {
+        margin-top: 1em;
+        width: 99%;
+        height: 6em;
+        resize: none;
+      }
+    }
+
+    &#comment-other-fields {
+      display: table;
+      padding: 1em;
+      width: 75%;
+      margin: 0 auto;
+
+      .comment-field {
+        display: table-row;
+
+        .comment-field-label {
+          text-align: right;
+          display: table-cell;
+          padding-right: 1em;
+          padding-bottom: 1em;
+          width: 50%;
+
+          label:after {
+            content: ":";
+          }
+        }
+
+        .field_with_errors {
+          label {
+            color: red;
+          }
+        }
+
+        .comment-field-input {
+          display: table-cell;
+          width: 50%;
+        }
+      }
+    }
+  }
+}
@@ -199,3 +199,7 @@ blockquote.bubble.bottom::after {
     text-decoration: underline;
   }
 }
+
+.clear {
+  clear: both;
+}
@@ -0,0 +1,59 @@
+class CommentsController < ApplicationController
+  def create
+    @blog = Blog.find_by_slug(params[:slug])
+
+    raise ActiveRecord::RecordNotFound unless @blog
+    raise ActiveRecord::RecordNotFound unless @blog.published
+
+    @comment = @blog.comments.new(comment_params)
+
+    unless @comment.valid?
+      flash.alert = "Error posting comment."
+      render "blogs/show"
+      return
+    end
+
+    akismet_vars = %w{ HTTP_ACCEPT HTTP_ACCEPT_ENCODING }
+    akismet_params = {
+      type: "comment",
+      text: @comment.body,
+      created_at: DateTime.now,
+      author: @comment.username,
+      author_email: @comment.email,
+      author_url: @comment.website,
+      post_url: url_for(@comment.blog),
+      post_modified_at: @comment.blog.updated_at,
+      referrer: request.referrer,
+      env: request.env.slice(*akismet_vars)
+    }
+
+    is_spam, is_blatant = Akismet.check(request.ip, request.user_agent, akismet_params)
+
+    if is_blatant
+      # I am lying.
+      flash.notice = "Comment submitted successfully! It will need to be moderated before it shows up on the blog."
+    else
+      if is_spam
+        @comment.status = :pending
+        flash_message = "Comment submitted successfully! It will need to be moderated before it shows up on the blog."
+      else
+        @comment.status = :published
+        flash_message = "Comment posted successfully!"
+      end
+
+      if @comment.save
+        flash.notice = flash_message
+      else
+        flash.alert = "Error posting comment."
+      end
+    end
+
+    redirect_to @comment.blog
+  end
+
+  private
+
+    def comment_params
+      params.require(:comment).permit(:username, :email, :website, :body)
+    end
+end
@@ -19,9 +19,15 @@ module ApplicationHelper
     link_to title, {:sort => col, :dir => direction}, {:class => css_class}
   end
 
-  def markdown(text)
+  def markdown(text, params = {})
     options = { fenced_code_blocks: true, highlight: true }
-    Redcarpet::Markdown.new(HTML.new(), options).render(text).html_safe
+
+    html_options = {}
+    if params[:restricted]
+      html_options[:filter_html] = true
+    end
+
+    Redcarpet::Markdown.new(HTML.new(html_options), options).render(text).html_safe
   end
 
 end
@@ -0,0 +1,5 @@
+module CommentsHelper
+  def show_comments(blog)
+    render "comments/layout", blog: blog
+  end
+end
@@ -3,6 +3,8 @@ class Blog < ApplicationRecord
 
   acts_as_taggable
 
+  has_many :comments
+
   validates :title, presence: true
   validates :body, presence: true, if: :published
   validates :slug, presence: true, format: /\A[-a-z0-9]+\z/, if: :published
@@ -0,0 +1,36 @@
+class Comment < ApplicationRecord
+  extend Enumerize
+
+  belongs_to :blog
+
+  validates :body, presence: true
+  validates :username, presence: true
+  validates :email, presence: true, format: URI::MailTo::EMAIL_REGEXP
+
+  scope :published_and_ordered, -> { where(status: :published).order(published_at: :asc) }
+
+  enumerize :status,
+    in: [:published, :pending, :rejected],
+    default: :published,
+    predicates: true
+
+  before_save :set_published_at
+
+  def gravatar_url
+    hash = Digest::MD5.hexdigest(email)
+    "https://www.gravatar.com/avatar/#{hash}?size=40&default=identicon&rating=g"
+  end
+
+  private
+
+    def set_published_at
+      if self.published?
+        if self.published_at.blank?
+          self.published_at = DateTime.now
+        end
+      else
+        self.published_at = nil
+      end
+    end
+
+end
@@ -15,4 +15,4 @@
   %cite.bubble
     %strong Hatkirby
     on
-    = blog.published_at.strftime("%m-%d-%Y")
+    = blog.published_at.strftime("%B #{blog.published_at.day.ordinalize}, %Y at %-I:%M:%S%P")
@@ -1,7 +1,4 @@
 - title @blog.title
 .breadcrumb= link_to "← Back to home page", root_path
 = render @blog, short: false
-%footer#blog-footer
-  This entry was posted on
-  = succeed "." do
-    %time= @blog.published_at.strftime("%B #{@blog.published_at.day.ordinalize}, %Y at %-I:%M:%S%P")
+= show_comments(@blog)
@@ -0,0 +1,13 @@
+.blog-comment
+  %blockquote.bubble.rounded.bottom
+    = image_tag comment.gravatar_url, class: "comment-avatar"
+    = markdown(comment.body, { restricted: true })
+    .clear
+  %cite.bubble
+    %strong
+      - if comment.website.empty?
+        = comment.username
+      - else
+        = link_to comment.username, comment.website
+    on
+    = comment.published_at.strftime("%B #{comment.published_at.day.ordinalize}, %Y at %-I:%M:%S%P")
@@ -0,0 +1,23 @@
+= form_for @comment || blog.comments.new, html: { id: "comment-form" } do |f|
+  %fieldset#comment-body-field
+    %blockquote.bubble.rounded.bottom
+      = f.label :body
+      = f.text_area :body
+    %cite.bubble Feel free to post a comment! You may use Markdown.
+  - if @comment and @comment.errors.any?
+    %ul#form-errors
+      - @comment.errors.full_messages.each do |msg|
+        %li= msg
+  %fieldset#comment-other-fields
+    .comment-name-field.comment-field
+      .comment-field-label= f.label :username
+      .comment-field-input= f.text_field :username
+    .comment-email-field.comment-field
+      .comment-field-label= f.label :email
+      .comment-field-input= f.text_field :email, type: :email
+    .comment-website-field.comment-field
+      .comment-field-label= f.label :website, "Website (Optional)"
+      .comment-field-input= f.text_field :website, type: :url
+    .comment-submit-button.comment-field
+      .comment-field-label
+      .comment-field-input= f.submit "Post"
@@ -0,0 +1,6 @@
+%a{ name: "comments" }
+#comments
+  %h2 Comments
+  - blog.comments.published_and_ordered.each do |comment|
+    = render comment
+  = render "comments/form", blog: blog