Adding hashtag model

app/controllers/api/v1/accounts_controller.rb

@@ -14,12 +14,12 @@ class Api::V1::AccountsController < ApiController
   end
 
   def following
-    @accounts = @account.following.limit(40)
+    @accounts = @account.following.with_counters.limit(40)
     render action: :index
   end
 
   def followers
-    @accounts = @account.followers.limit(40)
+    @accounts = @account.followers.with_counters.limit(40)
     render action: :index
   end
 

app/controllers/api/v1/statuses_controller.rb

@@ -15,12 +15,12 @@ class Api::V1::StatusesController < ApiController
   end
 
   def reblogged_by
-    @accounts = @status.reblogs.includes(:account).limit(40).map(&:account)
+    @accounts = @status.reblogged_by(40)
     render action: :accounts
   end
 
   def favourited_by
-    @accounts = @status.favourites.includes(:account).limit(40).map(&:account)
+    @accounts = @status.favourited_by(40)
     render action: :accounts
   end
 

app/lib/formatter.rb

@@ -14,6 +14,7 @@ class Formatter
     html = simple_format(html, sanitize: false)
     html = link_urls(html)
     html = link_mentions(html, status.mentions)
+    html = link_hashtags(html)
 
     html.html_safe
   end
@@ -43,6 +44,17 @@ class Formatter
     end
   end
 
+  def link_hashtags(html)
+    html.gsub(Tag::HASHTAG_RE) do |match|
+      hashtag_html(match)
+    end
+  end
+
+  def hashtag_html(match)
+    prefix, affix = match.split('#')
+    "#{prefix}<a href=\"#\" class=\"mention hashtag\">#<span>#{affix}</span></a>"
+  end
+
   def mention_html(match, account)
     "#{match.split('@').first}<a href=\"#{TagManager.instance.url_for(account)}\" class=\"mention\">@<span>#{account.username}</span></a>"
   end

app/models/account.rb

@@ -33,12 +33,12 @@ class Account < ApplicationRecord
   has_many :active_relationships,  class_name: 'Follow', foreign_key: 'account_id',        dependent: :destroy
   has_many :passive_relationships, class_name: 'Follow', foreign_key: 'target_account_id', dependent: :destroy
 
-  has_many :following, -> { order('follows.created_at desc') }, through: :active_relationships,  source: :target_account
-  has_many :followers, -> { order('follows.created_at desc') }, through: :passive_relationships, source: :account
+  has_many :following, -> { order('follows.id desc') }, through: :active_relationships,  source: :target_account
+  has_many :followers, -> { order('follows.id desc') }, through: :passive_relationships, source: :account
 
   # Block relationships
   has_many :block_relationships, class_name: 'Block', foreign_key: 'account_id', dependent: :destroy
-  has_many :blocking, -> { order('blocks.created_at desc') }, through: :block_relationships, source: :target_account
+  has_many :blocking, -> { order('blocks.id desc') }, through: :block_relationships, source: :target_account
 
   has_many :media_attachments, dependent: :destroy
 

app/models/status.rb

@@ -77,6 +77,14 @@ class Status < ApplicationRecord
     ids.map { |id| statuses[id].first }
   end
 
+  def reblogged_by(limit)
+    Account.where(id: reblogs.limit(limit).pluck(:account_id)).with_counters
+  end
+
+  def favourited_by(limit)
+    Account.where(id: favourites.limit(limit).pluck(:account_id)).with_counters
+  end
+
   def self.as_home_timeline(account)
     where(account: [account] + account.following).with_includes.with_counters
   end

app/models/tag.rb

@@ -0,0 +1,5 @@
+class Tag < ApplicationRecord
+  HASHTAG_RE = /[?:^|\s|\.|>]#([[:word:]_]+)/i
+
+  validates :name, presence: true, uniqueness: true
+end

app/models/user.rb

@@ -7,7 +7,7 @@ class User < ApplicationRecord
   validates :account, presence: true
 
   scope :prolific, -> { joins('inner join statuses on statuses.account_id = users.account_id').select('users.*, count(statuses.id) as statuses_count').group('users.id').order('statuses_count desc') }
-  scope :recent,   -> { order('created_at desc') }
+  scope :recent,   -> { order('id desc') }
   scope :admins,   -> { where(admin: true) }
 
   has_settings do |s|

db/migrate/20161104173623_create_tags.rb

@@ -0,0 +1,11 @@
+class CreateTags < ActiveRecord::Migration[5.0]
+  def change
+    create_table :tags do |t|
+      t.string :name, null: false, default: ''
+
+      t.timestamps
+    end
+
+    add_index :tags, :name, unique: true
+  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: 20161027172456) do
+ActiveRecord::Schema.define(version: 20161104173623) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -170,6 +170,13 @@ ActiveRecord::Schema.define(version: 20161027172456) do
     t.index ["activity_id", "activity_type"], name: "index_stream_entries_on_activity_id_and_activity_type", using: :btree
   end
 
+  create_table "tags", force: :cascade do |t|
+    t.string   "name",       default: "", null: false
+    t.datetime "created_at",              null: false
+    t.datetime "updated_at",              null: false
+    t.index ["name"], name: "index_tags_on_name", unique: true, using: :btree
+  end
+
   create_table "users", force: :cascade do |t|
     t.string   "email",                  default: "",    null: false
     t.integer  "account_id",                             null: false

spec/fabricators/tag_fabricator.rb

@@ -0,0 +1,3 @@
+Fabricator(:tag) do
+  name "MyString"
+end

spec/models/tag_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Tag, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end