app/controllers/diary_entries_controller.rb

   1 class DiaryEntriesController < ApplicationController
   2   include UserMethods
   3   include PaginationMethods
   4
   5   layout "site", :except => :rss
   6
   7   before_action :authorize_web
   8   before_action :set_locale
   9   before_action :check_database_readable
  10
  11   authorize_resource
  12
  13   before_action :lookup_user, :only => :show
  14   before_action :check_database_writable, :only => [:new, :create, :edit, :update, :hide, :unhide, :subscribe, :unsubscribe]
  15
  16   allow_thirdparty_images :only => [:new, :create, :edit, :update, :index, :show]
  17
  18   def index
  19     if params[:display_name]
  20       @user = User.active.find_by(:display_name => params[:display_name])
  21
  22       if @user
  23         @title = t ".user_title", :user => @user.display_name
  24         entries = @user.diary_entries
  25       else
  26         render_unknown_user params[:display_name]
  27         return
  28       end
  29     elsif params[:friends]
  30       if current_user
  31         @title = t ".title_friends"
  32         entries = DiaryEntry.where(:user => current_user.friends)
  33       else
  34         require_user
  35         return
  36       end
  37     elsif params[:nearby]
  38       if current_user
  39         @title = t ".title_nearby"
  40         entries = DiaryEntry.where(:user => current_user.nearby)
  41       else
  42         require_user
  43         return
  44       end
  45     else
  46       entries = DiaryEntry.joins(:user).where(:users => { :status => %w[active confirmed] })
  47
  48       if params[:language]
  49         @title = t ".in_language_title", :language => Language.find(params[:language]).english_name
  50         entries = entries.where(:language_code => params[:language])
  51       else
  52         candidate_codes = preferred_languages.flat_map(&:candidates).uniq.map(&:to_s)
  53         @languages = Language.where(:code => candidate_codes).in_order_of(:code, candidate_codes)
  54         @title = t ".title"
  55       end
  56     end
  57
  58     entries = entries.visible unless can? :unhide, DiaryEntry
  59
  60     @params = params.permit(:display_name, :friends, :nearby, :language)
  61
  62     @entries, @newer_entries_id, @older_entries_id = get_page_items(entries, :includes => [:user, :language])
  63   end
  64
  65   def show
  66     entries = @user.diary_entries
  67     entries = entries.visible unless can? :unhide, DiaryEntry
  68     @entry = entries.find_by(:id => params[:id])
  69     if @entry
  70       @title = t ".title", :user => params[:display_name], :title => @entry.title
  71       @opengraph_properties = {
  72         "og:image" => @entry.body.image,
  73         "og:image:alt" => @entry.body.image_alt,
  74         "og:description" => @entry.body.description,
  75         "article:published_time" => @entry.created_at.xmlschema
  76       }
  77       @comments = can?(:unhide, DiaryComment) ? @entry.comments : @entry.visible_comments
  78     else
  79       @title = t "diary_entries.no_such_entry.title", :id => params[:id]
  80       render :action => "no_such_entry", :status => :not_found
  81     end
  82   end
  83
  84   def new
  85     @title = t ".title"
  86
  87     default_lang = current_user.preferences.find_by(:k => "diary.default_language")
  88     lang_code = default_lang ? default_lang.v : current_user.preferred_language
  89     @diary_entry = DiaryEntry.new(entry_params.merge(:language_code => lang_code))
  90     set_map_location
  91     render :action => "new"
  92   end
  93
  94   def edit
  95     @title = t ".title"
  96     @diary_entry = DiaryEntry.find(params[:id])
  97
  98     redirect_to diary_entry_path(@diary_entry.user, @diary_entry) if current_user != @diary_entry.user
  99
 100     set_map_location
 101   rescue ActiveRecord::RecordNotFound
 102     render :action => "no_such_entry", :status => :not_found
 103   end
 104
 105   def create
 106     @title = t "diary_entries.new.title"
 107
 108     @diary_entry = DiaryEntry.new(entry_params)
 109     @diary_entry.user = current_user
 110
 111     if @diary_entry.save
 112       default_lang = current_user.preferences.find_by(:k => "diary.default_language")
 113       if default_lang
 114         default_lang.v = @diary_entry.language_code
 115         default_lang.save!
 116       else
 117         current_user.preferences.create(:k => "diary.default_language", :v => @diary_entry.language_code)
 118       end
 119
 120       # Subscribe user to diary comments
 121       @diary_entry.subscriptions.create(:user => current_user)
 122
 123       redirect_to :action => "index", :display_name => current_user.display_name
 124     else
 125       render :action => "new"
 126     end
 127   end
 128
 129   def update
 130     @title = t "diary_entries.edit.title"
 131     @diary_entry = DiaryEntry.find(params[:id])
 132
 133     if cannot?(:update, @diary_entry) ||
 134        (params[:diary_entry] && @diary_entry.update(entry_params))
 135       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
 136     else
 137       set_map_location
 138       render :action => "edit"
 139     end
 140   rescue ActiveRecord::RecordNotFound
 141     render :action => "no_such_entry", :status => :not_found
 142   end
 143
 144   def subscribe
 145     @diary_entry = DiaryEntry.find(params[:id])
 146
 147     if request.post?
 148       @diary_entry.subscriptions.create(:user => current_user) unless @diary_entry.subscribers.exists?(current_user.id)
 149
 150       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
 151     end
 152   rescue ActiveRecord::RecordNotFound
 153     render :action => "no_such_entry", :status => :not_found
 154   end
 155
 156   def unsubscribe
 157     @diary_entry = DiaryEntry.find(params[:id])
 158
 159     if request.post?
 160       @diary_entry.subscriptions.where(:user => current_user).delete_all if @diary_entry.subscribers.exists?(current_user.id)
 161
 162       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
 163     end
 164   rescue ActiveRecord::RecordNotFound
 165     render :action => "no_such_entry", :status => :not_found
 166   end
 167
 168   def rss
 169     if params[:display_name]
 170       user = User.active.find_by(:display_name => params[:display_name])
 171
 172       if user
 173         @entries = user.diary_entries
 174         @title = t("diary_entries.feed.user.title", :user => user.display_name)
 175         @description = t("diary_entries.feed.user.description", :user => user.display_name)
 176         @link = url_for :action => "index", :display_name => user.display_name, :host => Settings.server_url, :protocol => Settings.server_protocol
 177       else
 178         head :not_found
 179         return
 180       end
 181     else
 182       @entries = DiaryEntry.joins(:user).where(:users => { :status => %w[active confirmed] })
 183
 184       # Items can't be flagged as deleted in the RSS format.
 185       # For the general feeds, allow a delay before publishing, to help spam fighting
 186       @entries = @entries.where("created_at < :time", :time => Settings.diary_feed_delay.hours.ago)
 187
 188       if params[:language]
 189         @entries = @entries.where(:language_code => params[:language])
 190         @title = t("diary_entries.feed.language.title", :language_name => Language.find(params[:language]).english_name)
 191         @description = t("diary_entries.feed.language.description", :language_name => Language.find(params[:language]).english_name)
 192         @link = url_for :action => "index", :language => params[:language], :host => Settings.server_url, :protocol => Settings.server_protocol
 193       else
 194         @title = t("diary_entries.feed.all.title")
 195         @description = t("diary_entries.feed.all.description")
 196         @link = url_for :action => "index", :host => Settings.server_url, :protocol => Settings.server_protocol
 197       end
 198     end
 199     @entries = @entries.visible.includes(:user).order("created_at DESC").limit(20)
 200   end
 201
 202   def hide
 203     entry = DiaryEntry.find(params[:id])
 204     entry.update(:visible => false)
 205     redirect_to :action => "index", :display_name => entry.user.display_name
 206   end
 207
 208   def unhide
 209     entry = DiaryEntry.find(params[:id])
 210     entry.update(:visible => true)
 211     redirect_to :action => "index", :display_name => entry.user.display_name
 212   end
 213
 214   private
 215
 216   ##
 217   # return permitted diary entry parameters
 218   def entry_params
 219     params.require(:diary_entry).permit(:title, :body, :language_code, :latitude, :longitude)
 220   rescue ActionController::ParameterMissing
 221     ActionController::Parameters.new.permit(:title, :body, :language_code, :latitude, :longitude)
 222   end
 223
 224   ##
 225   # decide on a location for the diary entry map
 226   def set_map_location
 227     if @diary_entry.latitude && @diary_entry.longitude
 228       @lon = @diary_entry.longitude
 229       @lat = @diary_entry.latitude
 230       @zoom = 12
 231     elsif !current_user.home_location?
 232       @lon = params[:lon] || -0.1
 233       @lat = params[:lat] || 51.5
 234       @zoom = params[:zoom] || 4
 235     else
 236       @lon = current_user.home_lon
 237       @lat = current_user.home_lat
 238       @zoom = 12
 239     end
 240   end
 241 end