enforce coding convention

replaced every `and` by `&&` and every `or` by `||`

app/controllers/admin/export_controller.rb

@@ -1,6 +1,6 @@
 class Admin::ExportController < Admin::AdminController
   def create
-    unless Export.is_export_running? or Import.is_import_running?
+    unless Export.is_export_running? || Import.is_import_running?
       job_id = Jobs.enqueue( :exporter, user_id: current_user.id )
       render json: success_json.merge( job_id: job_id )
     else

app/controllers/application_controller.rb

@@ -223,7 +223,7 @@ class ApplicationController < ActionController::Base
     end
 
     def mini_profiler_enabled?
-      defined?(Rack::MiniProfiler) and current_user.try(:admin?)
+      defined?(Rack::MiniProfiler) && current_user.try(:admin?)
     end
 
     def authorize_mini_profiler
@@ -250,8 +250,7 @@ class ApplicationController < ActionController::Base
 
     def check_xhr
       unless (controller_name == 'forums' || controller_name == 'user_open_ids')
-        # render 'default/empty' unless ((request.format && request.format.json?) or request.xhr?)
+        raise RenderEmpty.new unless ((request.format && request.format.json?) || request.xhr?)
-        raise RenderEmpty.new unless ((request.format && request.format.json?) or request.xhr?)
       end
     end
 

app/controllers/clicks_controller.rb

@@ -4,7 +4,7 @@ class ClicksController < ApplicationController
 
   def track
     requires_parameter(:url)
-    if params[:topic_id].present? or params[:post_id].present?
+    if params[:topic_id].present? || params[:post_id].present?
       args = {url: params[:url], ip: request.remote_ip}
       args[:user_id] = current_user.id if current_user.present?
       args[:post_id] = params[:post_id].to_i if params[:post_id].present?

app/controllers/email_controller.rb

@@ -12,7 +12,7 @@ class EmailController < ApplicationController
     @user = User.find_by_temporary_key(params[:key])
 
     # Don't allow the use of a key while logged in as a different user
-    @user = nil if current_user.present? and (@user != current_user)
+    @user = nil if current_user.present? && (@user != current_user)
 
     if @user.present?
       @user.update_column(:email_digests, false)

app/controllers/list_controller.rb

@@ -10,7 +10,7 @@ class ListController < ApplicationController
       list_opts = {page: params[:page]}
 
       # html format means we need to farm exclude from the site options
-      if params[:format].blank? or params[:format] == "html"
+      if params[:format].blank? || params[:format] == "html"
         #TODO objectify this stuff
         SiteSetting.top_menu.split('|').each do |f|
           s = f.split(",")
@@ -35,7 +35,7 @@ class ListController < ApplicationController
     list = nil
 
     # If they choose uncategorized, return topics NOT in a category
-    if params[:category] == Slug.for(SiteSetting.uncategorized_name) or params[:category] == SiteSetting.uncategorized_name
+    if params[:category] == Slug.for(SiteSetting.uncategorized_name) || params[:category] == SiteSetting.uncategorized_name
       list = query.list_uncategorized
     else
       @category = Category.where("slug = ? or id = ?", params[:category], params[:category].to_i).includes(:featured_users).first

app/controllers/post_actions_controller.rb

@@ -12,7 +12,7 @@ class PostActionsController < ApplicationController
 
       post_action = PostAction.act(current_user, @post, action.id, params[:message])
 
-      if post_action.blank? or post_action.errors.present?
+      if post_action.blank? || post_action.errors.present?
         render_json_error(post_action)
       else
         # We need to reload or otherwise we are showing the old values on the front end

app/controllers/session_controller.rb

@@ -15,7 +15,7 @@ class SessionController < ApplicationController
     if @user.present?
 
       # If the site requires user approval and the user is not approved yet
-      if SiteSetting.must_approve_users? and !@user.approved?
+      if SiteSetting.must_approve_users? && !@user.approved?
         render :json => {error: I18n.t("login.not_approved")}
         return
       end

app/controllers/topics_controller.rb

@@ -25,7 +25,7 @@ class TopicsController < ApplicationController
     create_topic_view
 
     anonymous_etag(@topic_view.topic) do
-      redirect_to_correct_topic and return if slugs_do_not_match
+      redirect_to_correct_topic && return if slugs_do_not_match
       View.create_for(@topic_view.topic, request.remote_ip, current_user)
       track_visit_to_topic
       perform_show_response

app/controllers/users/omniauth_callbacks_controller.rb

@@ -156,7 +156,7 @@ class Users::OmniauthCallbacksController < ApplicationController
       user = user_open_id.user
 
       # If we have to approve users
-      if SiteSetting.must_approve_users? and !user.approved?
+      if SiteSetting.must_approve_users? && !user.approved?
         @data = {awaiting_approval: true}
       else
         log_on_user(user)
@@ -222,7 +222,7 @@ class Users::OmniauthCallbacksController < ApplicationController
     user = User.find_by_email(email)
 
     if user
-      if SiteSetting.must_approve_users? and !user.approved?
+      if SiteSetting.must_approve_users? && !user.approved?
         @data = {awaiting_approval: true}
       else
         log_on_user(user)

app/controllers/users_controller.rb

@@ -89,7 +89,7 @@ class UsersController < ApplicationController
     else
 
       # Contact the Discourse Hub server
-      email_given = (params[:email].present? or current_user.present?)
+      email_given = (params[:email].present? || current_user.present?)
       available_locally = User.username_available?(params[:username])
       global_match = false
       available_globally, suggestion_from_discourse_hub = begin
@@ -101,9 +101,9 @@ class UsersController < ApplicationController
         end
       end
 
-      if available_globally and available_locally
+      if available_globally && available_locally
         render json: {available: true, global_match: (global_match ? true : false)}
-      elsif available_locally and !available_globally
+      elsif available_locally && !available_globally
         if email_given
           # Nickname and email do not match what's registered on the discourse hub.
           render json: {available: false, global_match: false, suggestion: suggestion_from_discourse_hub}
@@ -113,7 +113,7 @@ class UsersController < ApplicationController
           # Don't give a suggestion until we get the email and try to match it with on the discourse hub.
           render json: {available: false}
         end
-      elsif available_globally and !available_locally
+      elsif available_globally && !available_locally
         # Already registered on this site with the matching nickname and email address. Why are you signing up again?
         render json: {available: false, suggestion: User.suggest_username(params[:username])}
       else
@@ -128,7 +128,7 @@ class UsersController < ApplicationController
 
   def create
 
-    if params[:password_confirmation] != honeypot_value or params[:challenge] != challenge_value.try(:reverse)
+    if params[:password_confirmation] != honeypot_value || params[:challenge] != challenge_value.try(:reverse)
       # Don't give any indication that we caught you in the honeypot
       return render(:json => {success: true, active: false, message: I18n.t("login.activate_email", email: params[:email]) })
     end
@@ -145,7 +145,7 @@ class UsersController < ApplicationController
     end
     user.password_required! unless auth
 
-    DiscourseHub.register_nickname( user.username, user.email ) if user.valid? and SiteSetting.call_discourse_hub?
+    DiscourseHub.register_nickname( user.username, user.email ) if user.valid? && SiteSetting.call_discourse_hub?
 
     if user.save
 
@@ -174,7 +174,7 @@ class UsersController < ApplicationController
           TwitterUserInfo.create(:user_id => user.id, :screen_name => auth[:twitter_screen_name], :twitter_user_id => auth[:twitter_user_id])
         end
 
-        if auth[:facebook].present? and FacebookUserInfo.find_by_facebook_user_id(auth[:facebook][:facebook_user_id]).nil?
+        if auth[:facebook].present? && FacebookUserInfo.find_by_facebook_user_id(auth[:facebook][:facebook_user_id]).nil?
           FacebookUserInfo.create!(auth[:facebook].merge(user_id: user.id))
         end
 
@@ -232,11 +232,11 @@ class UsersController < ApplicationController
     if @user.blank?
       flash[:error] = I18n.t('password_reset.no_token')
     else
-      if request.put? and params[:password].present?
+      if request.put? && params[:password].present?
         @user.password = params[:password]
         if @user.save
 
-          if SiteSetting.must_approve_users? and !@user.approved?
+          if SiteSetting.must_approve_users? && !@user.approved?
             @requires_approval = true
             flash[:success] = I18n.t('password_reset.success_unapproved')
           else

app/helpers/application_helper.rb

@@ -25,7 +25,7 @@ module ApplicationHelper
   end
 
   def mini_profiler_enabled?
-    defined?(Rack::MiniProfiler) and admin?
+    defined?(Rack::MiniProfiler) && admin?
   end
 
   def admin?

app/mailers/user_notifications.rb

@@ -49,7 +49,7 @@ class UserNotifications < ActionMailer::Base
     @markdown_linker = MarkdownLinker.new(Discourse.base_url)
 
     # Don't send email unless there is content in it
-    if @new_topics.present? or @notifications.present?
+    if @new_topics.present? || @notifications.present?
       mail to: user.email,
            subject: I18n.t('user_notifications.digest.subject_template',
                             :site_name => @site_name,

app/models/post.rb

@@ -206,7 +206,7 @@ class Post < ActiveRecord::Base
 
     parent_raw = parent_post.raw.sub(/\[quote.+\/quote\]/m, '')
 
-    if raw[parent_raw] or (parent_raw.size < SHORT_POST_CHARS)
+    if raw[parent_raw] || (parent_raw.size < SHORT_POST_CHARS)
       return cooked.sub(/\<aside.+\<\/aside\>/m, '')
     end
 

app/models/post_action.rb

@@ -123,9 +123,9 @@ class PostAction < ActiveRecord::Base
   end
 
   before_create do
-    raise AlreadyFlagged if is_flag? and PostAction.where(user_id: user_id,
+    raise AlreadyFlagged if is_flag? && PostAction.where(user_id: user_id,
-                                                          post_id: post_id,
+                                                         post_id: post_id,
-                                                          post_action_type_id: PostActionType.flag_types.values).exists?
+                                                         post_action_type_id: PostActionType.flag_types.values).exists?
   end
 
   after_save do

app/models/site_setting.rb

@@ -155,7 +155,7 @@ class SiteSetting < ActiveRecord::Base
   client_setting(:educate_until_posts, 2)
 
   def self.call_discourse_hub?
-    self.enforce_global_nicknames? and self.discourse_org_access_key.present?
+    self.enforce_global_nicknames? && self.discourse_org_access_key.present?
   end
 
   def self.topic_title_length

app/models/topic.rb

@@ -272,7 +272,7 @@ class Topic < ActiveRecord::Base
     Topic.transaction do
       old_category = category
 
-      if category_id.present? and category_id != cat.id
+      if category_id.present? && category_id != cat.id
         Category.update_all 'topic_count = topic_count - 1', ['id = ?', category_id]
       end
 
@@ -444,7 +444,7 @@ class Topic < ActiveRecord::Base
       end
     end
 
-    posted = if topic_user.present? and current_user.present?
+    posted = if topic_user.present? && current_user.present?
       current_user if topic_user.posted?
     end
 

app/models/user.rb

@@ -528,7 +528,7 @@ class User < ActiveRecord::Base
     end
 
     def password_validator
-      if (@raw_password and @raw_password.length < 6) || (@password_required && !@raw_password)
+      if (@raw_password && @raw_password.length < 6) || (@password_required && !@raw_password)
         errors.add(:password, "must be 6 letters or longer")
       end
     end

app/serializers/post_serializer.rb

@@ -153,10 +153,10 @@ class PostSerializer < ApplicationSerializer
                         can_act: scope.post_can_act?(object, sym, taken_actions: post_actions)}
 
       # The following only applies if you're logged in
-      if action_summary[:can_act] and scope.current_user.present?
+      if action_summary[:can_act] && scope.current_user.present?
         action_summary[:can_clear_flags] = scope.is_admin? && PostActionType.flag_types.values.include?(id)
 
-        if post_actions.present? and post_actions.has_key?(id)
+        if post_actions.present? && post_actions.has_key?(id)
           action_summary[:acted] = true
           action_summary[:can_undo] = scope.can_delete?(post_actions[id])
         end
@@ -188,7 +188,7 @@ class PostSerializer < ApplicationSerializer
   def include_link_counts?
     return true if @single_post_link_counts.present?
 
-    @topic_view.present? and @topic_view.link_counts.present? and @topic_view.link_counts[object.id].present?
+    @topic_view.present? && @topic_view.link_counts.present? && @topic_view.link_counts[object.id].present?
   end
 
   def include_read?
@@ -196,11 +196,11 @@ class PostSerializer < ApplicationSerializer
   end
 
   def include_reply_to_user?
-    object.quoteless? and object.reply_to_user
+    object.quoteless? && object.reply_to_user
   end
 
   def include_bookmarked?
-    post_actions.present? and post_actions.keys.include?(PostActionType.types[:bookmark])
+    post_actions.present? && post_actions.keys.include?(PostActionType.types[:bookmark])
   end
 
   private

app/serializers/topic_list_serializer.rb

@@ -9,7 +9,7 @@ class TopicListSerializer < ApplicationSerializer
   end
 
   def include_more_topics_url?
-    object.more_topics_url.present? and (object.topics.size == SiteSetting.topics_per_page)
+    object.more_topics_url.present? && (object.topics.size == SiteSetting.topics_per_page)
   end
 
 end

app/serializers/topic_view_serializer.rb

@@ -174,19 +174,19 @@ class TopicViewSerializer < ApplicationSerializer
   end
 
   def include_participants?
-    object.initial_load? and object.posts_count.present?
+    object.initial_load? && object.posts_count.present?
   end
 
   def suggested_topics
     object.suggested_topics.topics
   end
   def include_suggested_topics?
-    at_bottom and object.suggested_topics.present?
+    at_bottom && object.suggested_topics.present?
   end
 
   # Whether we're at the bottom of a topic (last page)
   def at_bottom
-    posts.present? and (@highest_number_in_posts == object.highest_post_number)
+    posts.present? && (@highest_number_in_posts == object.highest_post_number)
   end
 
   def highest_post_number

config/initializers/mini_profiler.rb

@@ -6,12 +6,12 @@ if defined?(Rack::MiniProfiler)
 
   # For our app, let's just show mini profiler always, polling is chatty so nuke that
   Rack::MiniProfiler.config.pre_authorize_cb = lambda do |env|
-    (env['HTTP_USER_AGENT'] !~ /iPad|iPhone|Nexus 7/) and
+    (env['HTTP_USER_AGENT'] !~ /iPad|iPhone|Nexus 7/) &&
-    (env['PATH_INFO'] !~ /^\/message-bus/) and
+    (env['PATH_INFO'] !~ /^\/message-bus/) &&
-    (env['PATH_INFO'] !~ /topics\/timings/) and
+    (env['PATH_INFO'] !~ /topics\/timings/) &&
-    (env['PATH_INFO'] !~ /assets/) and
+    (env['PATH_INFO'] !~ /assets/) &&
-    (env['PATH_INFO'] !~ /jasmine/) and
+    (env['PATH_INFO'] !~ /jasmine/) &&
-    (env['PATH_INFO'] !~ /users\/.*\/avatar/) and
+    (env['PATH_INFO'] !~ /users\/.*\/avatar/) &&
     (env['PATH_INFO'] !~ /srv\/status/)
   end
 
@@ -27,7 +27,7 @@ if defined?(Rack::MiniProfiler)
   inst = Class.new
   class << inst
     def start(name,id,payload)
-      if Rack::MiniProfiler.current and  name !~ /(process_action.action_controller)|(render_template.action_view)/
+      if Rack::MiniProfiler.current && name !~ /(process_action.action_controller)|(render_template.action_view)/
         @prf ||= {}
         @prf[id] ||= []
         @prf[id] << Rack::MiniProfiler.start_step("#{payload[:serializer] if name =~ /serialize.serializer/} #{name}")
@@ -35,7 +35,7 @@ if defined?(Rack::MiniProfiler)
     end
 
     def finish(name,id,payload)
-      if Rack::MiniProfiler.current and  name !~ /(process_action.action_controller)|(render_template.action_view)/
+      if Rack::MiniProfiler.current && name !~ /(process_action.action_controller)|(render_template.action_view)/
         t = @prf[id].pop
         @prf.delete id unless t
         Rack::MiniProfiler.finish_step t

config/initializers/sidekiq.rb

@@ -2,7 +2,7 @@ require "#{Rails.root}/lib/discourse_redis"
 
 $redis = DiscourseRedis.new
 
-if Rails.env.development? and !ENV['DO_NOT_FLUSH_REDIS']
+if Rails.env.development? && !ENV['DO_NOT_FLUSH_REDIS']
   puts "Flushing redis (development mode)"
   $redis.flushall
 end

config/initializers/verify_config.rb

@@ -1,6 +1,6 @@
 # Check that the app is configured correctly. Raise some helpful errors if something is wrong.
 
-if Rails.env.production? and ['localhost', 'production.localhost'].include?(Discourse.current_hostname)
+if Rails.env.production? && ['localhost', 'production.localhost'].include?(Discourse.current_hostname)
   puts <<END
 
     Discourse.current_hostname = '#{Discourse.current_hostname}'

lib/discourse_iife.rb

@@ -6,7 +6,7 @@ class DiscourseIIFE < Sprockets::Processor
     path = context.pathname.to_s
 
     # Only discourse or admin paths
-    return data unless (path =~ /\/javascripts\/discourse/ or path =~ /\/javascripts\/admin/)
+    return data unless (path =~ /\/javascripts\/discourse/ || path =~ /\/javascripts\/admin/)
 
     # Ugh, ignore translations
     return data if (path =~ /\/translations/)

lib/export/json_encoder.rb

@@ -24,7 +24,7 @@ module Export
     end
 
     def write_schema_info(args)
-      raise SchemaArgumentsError unless args[:source].present? and args[:version].present?
+      raise SchemaArgumentsError unless args[:source].present? && args[:version].present?
 
       @schema_data = {
           schema: {
@@ -50,7 +50,7 @@ module Export
         # TODO: write to multiple files as needed.
         #       one file per table? multiple files per table?
 
-      end while rows and rows.size > 0
+      end while rows && rows.size > 0
 
       @table_data[table_name][:rows].flatten!(1)
       @table_data[table_name][:row_count] = @table_data[table_name][:rows].size

lib/freedom_patches/active_record_base.rb

@@ -25,7 +25,7 @@ class ActiveRecord::Base
     begin
       yield
     rescue ActiveRecord::StatementInvalid => e
-      if e.message =~ /deadlock detected/ and (retries.nil? || retries > 0)
+      if e.message =~ /deadlock detected/ && (retries.nil? || retries > 0)
         retry_lock_error(retries ? retries - 1 : nil, &block)
       else
         raise e

lib/guardian.rb

@@ -345,7 +345,7 @@ class Guardian
     when :like
       return false if post.user == @user
     when :vote then
-      return false if opts[:voted_in_topic] and post.topic.has_meta_data_boolean?(:single_vote)
+      return false if opts[:voted_in_topic] && post.topic.has_meta_data_boolean?(:single_vote)
     end
 
     return true

lib/image_sizer.rb

@@ -3,7 +3,7 @@ module ImageSizer
   # Resize an image to the aspect ratio we want
   def self.resize(width, height)
     max_width = SiteSetting.max_image_width.to_f
-    return nil if width.blank? or height.blank?
+    return nil if width.blank? || height.blank?
 
     w = width.to_f
     h = height.to_f

lib/jobs.rb

@@ -19,7 +19,7 @@ module Jobs
       opts = opts.with_indifferent_access
 
       if opts.delete(:sync_exec)
-        if opts.has_key?(:current_site_id) and opts[:current_site_id] != RailsMultisite::ConnectionManagement.current_db
+        if opts.has_key?(:current_site_id) && opts[:current_site_id] != RailsMultisite::ConnectionManagement.current_db
           raise ArgumentError.new("You can't connect to another database when executing a job synchronously.")
         else
           return execute(opts)

lib/jobs/importer.rb

@@ -125,8 +125,8 @@ module Jobs
     end
 
     def set_schema_info(arg)
-      if arg[:source] and arg[:source].downcase == 'discourse'
+      if arg[:source] && arg[:source].downcase == 'discourse'
-        if arg[:version] and arg[:version] <= Export.current_schema_version
+        if arg[:version] && arg[:version] <= Export.current_schema_version
           @export_schema_version = arg[:version]
           if arg[:table_count] == ordered_models_for_import.size
             true
@@ -210,7 +210,7 @@ module Jobs
 
         # The indexdef statements don't create the primary keys, so we need to find the primary key and do it ourselves.
         pkey_index_def = @index_definitions[model.table_name].find { |ixdef| ixdef =~ / ([\S]{1,}_pkey) / }
-        if pkey_index_def and pkey_index_name = / ([\S]{1,}_pkey) /.match(pkey_index_def)[1]
+        if pkey_index_def && pkey_index_name = / ([\S]{1,}_pkey) /.match(pkey_index_def)[1]
           model.exec_sql( "ALTER TABLE ONLY #{model.table_name} ADD PRIMARY KEY USING INDEX #{pkey_index_name}" )
         end
 
@@ -263,9 +263,9 @@ module Jobs
     def send_notification
       # Doesn't work.  "WARNING: Can't mass-assign protected attributes: created_at"
       # Still a problem with the activerecord schema_cache I think.
-      # if @user_info and @user_info[:user_id]
+      # if @user_info && @user_info[:user_id]
       #   user = User.where(id: @user_info[:user_id]).first
-      #   if user and user.email == @user_info[:email]
+      #   if user && user.email == @user_info[:email]
       #     SystemMessage.new(user).create('import_succeeded')
       #   end
       # end

lib/jobs/user_email.rb

@@ -15,7 +15,7 @@ module Jobs
       user = User.where(id: args[:user_id]).first
       return unless user.present?
 
-      seen_recently = (user.last_seen_at.present? and user.last_seen_at > SiteSetting.email_time_window_mins.minutes.ago)
+      seen_recently = (user.last_seen_at.present? && user.last_seen_at > SiteSetting.email_time_window_mins.minutes.ago)
 
       email_args = {}
 

lib/oneboxer/discourse_onebox.rb

@@ -26,7 +26,7 @@ module Oneboxer
 
         @template = 'user'
       when 'topics'
-        if route[:post_number].present? and route[:post_number].to_i > 1
+        if route[:post_number].present? && route[:post_number].to_i > 1
           # Post Link
           post = Post.where(topic_id: route[:topic_id], post_number: route[:post_number].to_i).first
           Guardian.new.ensure_can_see!(post)

lib/oneboxer/open_graph_onebox.rb

@@ -13,7 +13,7 @@ module Oneboxer
 
       # A site is supposed to supply all the basic og attributes, but some don't (like deviant art)
       # If it just has image and no title, embed it as an image.
-      return BaseOnebox.image_html(@opts['image'], nil, @url) if @opts['image'].present? and @opts['title'].blank?
+      return BaseOnebox.image_html(@opts['image'], nil, @url) if @opts['image'].present? && @opts['title'].blank?
 
       @opts['title'] ||= @opts['description']
       return nil if @opts['title'].blank?

lib/oneboxer/wikipedia_onebox.rb

@@ -41,7 +41,7 @@ module Oneboxer
 
       unless paras.empty?
         cnt = 0
-        while text.length < MAX_TEXT and cnt <= 3
+        while text.length < MAX_TEXT && cnt <= 3
           text << " " unless cnt == 0
           paragraph = paras[cnt].inner_text[0..MAX_TEXT]
           paragraph.gsub!(/\[\d+\]/mi, "")

lib/post_revisor.rb

@@ -91,7 +91,7 @@ class PostRevisor
     # If found, update its description
     body = @post.cooked
     matches = body.scan(/\<p\>(.*)\<\/p\>/)
-    if matches and matches[0] and matches[0][0]
+    if matches && matches[0] && matches[0][0]
       new_description = matches[0][0]
       new_description = nil if new_description == I18n.t("category.replace_paragraph")
       category.update_column(:description, new_description)

lib/rate_limiter/on_create_record.rb

@@ -47,7 +47,7 @@ class RateLimiter
           rate_limiter = send(limiter_method)
           return unless rate_limiter.present?
 
-          if @performed.present? and @performed[limiter_method]
+          if @performed.present? && @performed[limiter_method]
             rate_limiter.rollback!
             @performed[limiter_method] = false
           end

lib/text_sentinel.rb

@@ -40,7 +40,7 @@ class TextSentinel
     return false if @text.blank? || @text.strip.blank?
 
     # Entropy check if required
-    return false if @opts[:min_entropy].present? and (entropy < @opts[:min_entropy])
+    return false if @opts[:min_entropy].present? && (entropy < @opts[:min_entropy])
 
     # We don't have a comprehensive list of symbols, but this will eliminate some noise
     non_symbols = @text.gsub(TextSentinel.non_symbols_regexp, '').size
@@ -48,10 +48,10 @@ class TextSentinel
 
     # Don't allow super long strings without spaces
 
-    return false if @opts[:max_word_length] and @text =~ /\w{#{@opts[:max_word_length]},}(\s|$)/
+    return false if @opts[:max_word_length] && @text =~ /\w{#{@opts[:max_word_length]},}(\s|$)/
 
     # We don't allow all upper case content in english
-    return false if (@text =~ /[A-Z]+/) and (@text == @text.upcase)
+    return false if (@text =~ /[A-Z]+/) && (@text == @text.upcase)
 
     true
   end

lib/topic_view.rb

@@ -11,7 +11,7 @@ class TopicView
 
     # Special case: If the topic is private and the user isn't logged in, ask them
     # to log in!
-    if @topic.present? and @topic.private_message? and user.blank?
+    if @topic.present? && @topic.private_message? && user.blank?
       raise Discourse::NotLoggedIn.new
     end
 
@@ -52,7 +52,7 @@ class TopicView
 
   def next_page
     last_post = @posts.last
-    if last_post.present? and (@topic.highest_post_number > last_post.post_number)
+    if last_post.present? && (@topic.highest_post_number > last_post.post_number)
       (@posts[0].post_number / SiteSetting.posts_per_page) + 1
     end
   end

spec/components/jobs_spec.rb

@@ -28,7 +28,7 @@ describe Jobs do
 
       it "should enqueue with the correct database id when the current_site_id option is given" do
         Sidekiq::Client.expects(:enqueue).with do |arg1, arg2|
-          arg2[:current_site_id] == 'test_db' and arg2[:sync_exec].nil?
+          arg2[:current_site_id] == 'test_db' && arg2[:sync_exec].nil?
         end
         Jobs.enqueue(:process_post, post_id: 1, current_site_id: 'test_db')
       end