Added categories

README.md

@@ -32,6 +32,8 @@ Pressr is a multi-user, multi-blog website written in Ruby on Rails. Although it
 
 * Draft posts/pages
 
+* Categories
+
 ## Configuration
 
 Database settings are configured in config/database.yml. It defaults to Postgres running on localhost.

app/assets/stylesheets/category.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the category controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/application_controller.rb

@@ -99,6 +99,16 @@ html
            )
   end
 
+  def auth_user
+    if current_user.nil?
+      flash[:alert] = "Please login first."
+      redirect_to login_path
+    elsif get_user_blog.nil? || !get_user_blog.can_edit(current_user)
+      flash[:alert] = "You don't have access to that page!"
+      redirect_back fallback_location: root_path
+    end
+  end
+
   private
 
   def default_bg_color

app/controllers/category_controller.rb

@@ -0,0 +1,50 @@
+class CategoryController < ApplicationController
+  before_action :auth_user, only: [:manage, :create, :delete, :update]
+  def get
+    @blog = Blog.find_by_urlName(params[:blog_name])
+    if @blog.nil?
+      render file: "#{Rails.root}/public/404.html" , status: :not_found
+      return
+    end
+    @cat = @blog.categories.find_by_path(params[:cat_name])
+    if @cat.nil?
+      render file: "#{Rails.root}/public/404.html" , status: :not_found
+      return
+    end
+    @posts = @cat.posts
+  end
+
+  def manage
+    @blog = get_user_blog
+    @cats = @blog.categories.order(id: :asc)
+    @category = Category.new
+  end
+
+  def create
+    @category = Category.new
+    @blog = get_user_blog
+    c = @blog.categories.new(params[:category].permit(:name))
+    unless c.save
+      flash.now[:alerts] = c.errors.full_messages
+      @category = c
+    end
+    @cats = @blog.categories.all
+    render :manage
+  end
+
+  def delete
+    @category = Category.new
+    @blog = get_user_blog
+    @cats = @blog.categories
+    c = @cats.find_by_path(params[:cat_name])
+    c.destroy unless c.nil?
+    render :manage
+  end
+
+  def update
+    blog = get_user_blog
+    c = blog.categories.find_by_path(params[:cat_name])
+    c.update(params[:category].permit(:name))
+    redirect_to manage_category_path
+  end
+end

app/controllers/post_controller.rb

@@ -66,6 +66,10 @@ class PostController < ApplicationController
       return
     end
     @post = Post.create
+    @cats = {}
+    @blog.categories.each {|c| @cats[c.path] = {name: c.name, val: false}}
+    #For editing only
+    #@post.categories.each {|c| @cats[c.path] = true}
   end
 
   def create
@@ -79,6 +83,15 @@ class PostController < ApplicationController
     post = blog.posts.create(title: params[:post][:title],
                              body: params[:post][:body],
                              is_draft: params[:post][:is_draft] || false)
+    cats = params[:categories]
+    cats.each do |k, v|
+      c = blog.categories.find_by_path(k)
+      unless c.nil?
+        if v == 1
+          post.categories << c
+        end
+      end
+    end
     redirect_to edit_post_path(post_id: post.id)
   end
 
@@ -88,6 +101,11 @@ class PostController < ApplicationController
       render file: "#{Rails.root}/public/403.html" , status: :forbidden
       return
     end
+
+    @cats = {}
+    @post.blog.categories.each {|c| @cats[c.path] = {name: c.name, value: false}}
+    @post.categories.each {|c| @cats[c.path] = {name: c.name, value: true}}
+    
     @post_or_update = @post.nil? ? "Post" : "Update"
   end
 
@@ -100,6 +118,19 @@ class PostController < ApplicationController
     end
     @post.update(post_params)
     @post.save
+
+    cats = params[:categories]
+    cats.each do |k, v|
+      c = @post.blog.categories.find_by_path(k)
+      unless c.nil?
+        if v.to_i == 1
+          @post.categories << c
+        else
+          @post.categories.delete c
+        end
+      end
+    end
+    
     redirect_to edit_post_path
   end
 

app/helpers/category_helper.rb

@@ -0,0 +1,2 @@
+module CategoryHelper
+end

app/models/blog.rb

@@ -5,6 +5,7 @@ class Blog < ApplicationRecord
   has_many :posts
   belongs_to :user
   has_many :pages
+  has_many :categories
 
   preload_counts :posts
 

app/models/category.rb

@@ -0,0 +1,22 @@
+class Category < ApplicationRecord
+  belongs_to :blog
+  has_and_belongs_to_many :posts, -> { distinct }
+
+  validates_uniqueness_of :name, uniqueness: { scope: :blog_id }
+  validates_uniqueness_of :path, uniqueness: { scope: :blog_id }
+
+  validates_length_of :name, in: 3..30
+
+  before_validation :set_path
+
+  def set_path
+    self.path = self.name.parameterize
+  end
+  
+  def to_param
+    {
+      blog_name: self.blog.urlName,
+      cat_name: self.path
+    }
+  end
+end

app/models/post.rb

@@ -8,6 +8,7 @@ class Post < ApplicationRecord
   
   belongs_to :blog
   has_many :comments
+  has_and_belongs_to_many :categories, -> { distinct }
 
   preload_counts :comments
 

app/views/category/get.html.erb

@@ -0,0 +1,5 @@
+<h1>Posts Tagged Under "<%= @cat.name %>"</h1>
+<hr>
+<% @posts.each do |p| %>
+<%= render p %>
+<% end %>

app/views/category/manage.html.erb

@@ -0,0 +1,31 @@
+<h2 style="margin-bottom: 0px;">
+	<%= @blog.title %>'s Categories
+</h2>
+<br>
+<% #if @pages.length > 0 %>
+<table style="margin-top: 15px;">
+	<tr>
+		<th>Name</th>
+	</tr>
+	<tr>
+		<%= form_for @category, url: manage_category_path do |f| %>
+		<td><%= f.text_field :name %></td>
+		<td><%= f.submit "Add", class: "btn btn-sm btn-primary" %></td>
+		<% end %>
+	</tr>
+	<% @cats.each do |c| %>
+	<tr>
+		<%= form_for c, url: update_category_path(c.to_param) do |f| %>
+		<td><%= f.text_field :name %></td>
+		<td><%= f.submit "Update", class: "btn btn-sm btn-primary" %></td>
+		<% end %>
+		<td>
+			<%= link_to 'Delete',
+				delete_category_path(c.to_param),
+				method: :delete,
+				data: {confirm: "Are you sure?"},
+				class: "btn btn-sm btn-danger" %>
+		</td>
+	</tr>
+	<% end %>
+</table>

app/views/post/edit.html.erb

@@ -31,6 +31,18 @@
 			</tr>
 		</table>
 		<hr>
+		<table style="padding: 15px;">
+			<th>Categories</th>
+			<%= form_for :categories do |f| %>
+			<% @cats.each do |k, v| %>
+			<tr>
+				<td><%= v[:name] %></td>
+				<td><%= f.check_box k, checked: v[:value] %></td>
+			</tr>
+			<% end %>
+			<% end %>
+		</table>
+		<hr>
 		Posted On
 		<%= f.date_field :created_at %>
 	</div>

app/views/post/new.html.erb

@@ -26,6 +26,18 @@
 				<td><%= f.radio_button :is_draft, false %></td>
 			</tr>
 		</table>
+		<hr>
+		<table style="padding: 15px;">
+			<th>Categories</th>
+			<%= form_for :categories do |f| %>
+			<% @cats.each do |k, v| %>
+			<tr>
+				<td><%= v[:name] %></td>
+				<td><%= f.check_box k %></td>
+			</tr>
+			<% end %>
+			<% end %>
+		</table>
 	</div>
 </div>
 <% end %>

app/views/posts/_post.html.erb

@@ -30,11 +30,21 @@
 	<!-- Limit body to 1000 chars -->
 	<%= text %>
 	<div style="clear: both"></div>
+	<%= post.comments_count %> comments
+	<small style="float: right">
+		Categories:
+		<% if post.categories.size > 0 %>
+		<%= (post.categories.map {|c| link_to(c.name, category_path(c.to_param))}).join(", ").html_safe %>
+		<% else %>
+		Uncategorized
+		<% end %>
+	</small>
 	<% if !blog_name.nil? %>
+	<br>
 	<div style="float: right">
 		<%= link_to 'Read more...', post_path(post_id: post.id, blog_name: blog_name) %>
 	</div>
+	<br>
 	<% end %>
-	<%= post.comments_count %> comments
 </div>
 <hr>

app/views/user/dashboard.html.erb

@@ -18,6 +18,7 @@
 			<td><%= link_to 'New post', new_post_path(blog_name: b.urlName) %></td>
 			<td><%= link_to 'Edit blog', edit_blog_path(blog_name: b.urlName) %></td>
 			<td><%= link_to 'Manage pages', manage_page_path(blog_name: b.urlName) %></td>
+			<td><%= link_to 'Manage categories', manage_category_path(blog_name: b.urlName) %></td>
 		</tr>
 		<% end %>
 	</table>

config/routes.rb

@@ -37,7 +37,7 @@ Rails.application.routes.draw do
   post '/dashboard/i/create' => 'user#upload_image', as: :upload_image
   post '/dashboard/v/create' => 'user#upload_video', as: :upload_video
 
-  # Page stuff
+  # Pages
   get '/b/:blog_name/p/:id/:path' => 'page#get', as: :page
   get '/b/:blog_name/p/:id/:path/edit' => 'page#edit', as: :edit_page
   patch '/b/:blog_name/p/:id/:path/edit' => 'page#update'
@@ -47,6 +47,13 @@ Rails.application.routes.draw do
   post '/b/:blog_name/pages/new' => 'page#create'
   post '/b/:blog_name/pages/:p/priority/:dir' => 'page#priority', as: :page_priority
 
+  # Categories
+  get '/b/:blog_name/c/:cat_name' => 'category#get', as: :category
+  get '/b/:blog_name/categories' => 'category#manage', as: :manage_category
+  post '/b/:blog_name/categories' => 'category#create'
+  delete '/b/:blog_name/c/:cat_name' => 'category#delete', as: :delete_category
+  patch '/b/:blog_name/c/:cat_name' => 'category#update', as: :update_category
+
   # Comments
   post '/b/:blog_name/post/:post_id/comment' => 'comment#create', as: :comment
   delete '/comment/:id' => 'comment#delete', as: :delete_comment

db/migrate/20200322145832_create_categories.rb

@@ -0,0 +1,17 @@
+class CreateCategories < ActiveRecord::Migration[6.0]
+  def change
+    create_table :categories do |t|
+      t.string :name, index: true, null: false
+      t.string :path, index: true, null: false
+      t.references :blog, null: false, foreign_key: true, index: true
+      t.index [:name, :blog_id], unique: true
+      t.index [:path, :blog_id], unique: true
+      t.timestamps
+    end
+
+    create_join_table :categories, :posts do |t|
+    t.index :category_id
+    t.index :post_id
+  end
+  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_02_04_151117) do
+ActiveRecord::Schema.define(version: 2020_03_22_145832) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -30,6 +30,26 @@ ActiveRecord::Schema.define(version: 2020_02_04_151117) do
     t.index ["user_id"], name: "index_blogs_on_user_id"
   end
 
+  create_table "categories", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "path", null: false
+    t.bigint "blog_id", null: false
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["blog_id"], name: "index_categories_on_blog_id"
+    t.index ["name", "blog_id"], name: "index_categories_on_name_and_blog_id", unique: true
+    t.index ["name"], name: "index_categories_on_name"
+    t.index ["path", "blog_id"], name: "index_categories_on_path_and_blog_id", unique: true
+    t.index ["path"], name: "index_categories_on_path"
+  end
+
+  create_table "categories_posts", id: false, force: :cascade do |t|
+    t.bigint "category_id", null: false
+    t.bigint "post_id", null: false
+    t.index ["category_id"], name: "index_categories_posts_on_category_id"
+    t.index ["post_id"], name: "index_categories_posts_on_post_id"
+  end
+
   create_table "comments", force: :cascade do |t|
     t.integer "likes"
     t.integer "dislikes"
@@ -111,5 +131,6 @@ ActiveRecord::Schema.define(version: 2020_02_04_151117) do
     t.index ["user_id"], name: "index_video_meta_on_user_id"
   end
 
+  add_foreign_key "categories", "blogs"
   add_foreign_key "pages", "blogs"
 end

test/controllers/category_controller_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class CategoryControllerTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/fixtures/categories.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  name: MyString
+  blog: one
+
+two:
+  name: MyString
+  blog: two

test/models/category_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class CategoryTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end