app/controllers/diary_entry_controller.rb

   1 class DiaryEntryController < ApplicationController
   2   layout "site", :except => :rss
   3
   4   before_action :authorize_web
   5   before_action :set_locale
   6
   7   authorize_resource
   8
   9   before_action :lookup_user, :only => [:show, :comments]
  10   before_action :check_database_readable
  11   before_action :check_database_writable, :only => [:new, :edit, :comment, :hide, :hidecomment, :subscribe, :unsubscribe]
  12   before_action :allow_thirdparty_images, :only => [:new, :edit, :index, :show, :comments]
  13
  14   def new
  15     @title = t "diary_entry.new.title"
  16
  17     if request.post?
  18       @diary_entry = DiaryEntry.new(entry_params)
  19       @diary_entry.user = current_user
  20
  21       if @diary_entry.save
  22         default_lang = current_user.preferences.where(:k => "diary.default_language").first
  23         if default_lang
  24           default_lang.v = @diary_entry.language_code
  25           default_lang.save!
  26         else
  27           current_user.preferences.create(:k => "diary.default_language", :v => @diary_entry.language_code)
  28         end
  29
  30         # Subscribe user to diary comments
  31         @diary_entry.subscriptions.create(:user => current_user)
  32
  33         redirect_to :action => "index", :display_name => current_user.display_name
  34       else
  35         render :action => "edit"
  36       end
  37     else
  38       default_lang = current_user.preferences.where(:k => "diary.default_language").first
  39       lang_code = default_lang ? default_lang.v : current_user.preferred_language
  40       @diary_entry = DiaryEntry.new(entry_params.merge(:language_code => lang_code))
  41       set_map_location
  42       render :action => "edit"
  43     end
  44   end
  45
  46   def edit
  47     @title = t "diary_entry.edit.title"
  48     @diary_entry = DiaryEntry.find(params[:id])
  49
  50     if current_user != @diary_entry.user
  51       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
  52     elsif params[:diary_entry] && @diary_entry.update(entry_params)
  53       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
  54     end
  55
  56     set_map_location
  57   rescue ActiveRecord::RecordNotFound
  58     render :action => "no_such_entry", :status => :not_found
  59   end
  60
  61   def comment
  62     @entry = DiaryEntry.find(params[:id])
  63     @diary_comment = @entry.comments.build(comment_params)
  64     @diary_comment.user = current_user
  65     if @diary_comment.save
  66
  67       # Notify current subscribers of the new comment
  68       @entry.subscribers.visible.each do |user|
  69         Notifier.diary_comment_notification(@diary_comment, user).deliver_now if current_user != user
  70       end
  71
  72       # Add the commenter to the subscribers if necessary
  73       @entry.subscriptions.create(:user => current_user) unless @entry.subscribers.exists?(current_user.id)
  74
  75       redirect_to diary_entry_path(@entry.user, @entry)
  76     else
  77       render :action => "show"
  78     end
  79   rescue ActiveRecord::RecordNotFound
  80     render :action => "no_such_entry", :status => :not_found
  81   end
  82
  83   def subscribe
  84     diary_entry = DiaryEntry.find(params[:id])
  85
  86     diary_entry.subscriptions.create(:user => current_user) unless diary_entry.subscribers.exists?(current_user.id)
  87
  88     redirect_to diary_entry_path(diary_entry.user, diary_entry)
  89   rescue ActiveRecord::RecordNotFound
  90     render :action => "no_such_entry", :status => :not_found
  91   end
  92
  93   def unsubscribe
  94     diary_entry = DiaryEntry.find(params[:id])
  95
  96     diary_entry.subscriptions.where(:user => current_user).delete_all if diary_entry.subscribers.exists?(current_user.id)
  97
  98     redirect_to diary_entry_path(diary_entry.user, diary_entry)
  99   rescue ActiveRecord::RecordNotFound
 100     render :action => "no_such_entry", :status => :not_found
 101   end
 102
 103   def index
 104     if params[:display_name]
 105       @user = User.active.find_by(:display_name => params[:display_name])
 106
 107       if @user
 108         @title = t "diary_entry.index.user_title", :user => @user.display_name
 109         @entries = @user.diary_entries
 110       else
 111         render_unknown_user params[:display_name]
 112         return
 113       end
 114     elsif params[:friends]
 115       if current_user
 116         @title = t "diary_entry.index.title_friends"
 117         @entries = DiaryEntry.where(:user_id => current_user.friend_users)
 118       else
 119         require_user
 120         return
 121       end
 122     elsif params[:nearby]
 123       if current_user
 124         @title = t "diary_entry.index.title_nearby"
 125         @entries = DiaryEntry.where(:user_id => current_user.nearby)
 126       else
 127         require_user
 128         return
 129       end
 130     else
 131       @entries = DiaryEntry.joins(:user).where(:users => { :status => %w[active confirmed] })
 132
 133       if params[:language]
 134         @title = t "diary_entry.index.in_language_title", :language => Language.find(params[:language]).english_name
 135         @entries = @entries.where(:language_code => params[:language])
 136       else
 137         @title = t "diary_entry.index.title"
 138       end
 139     end
 140
 141     @params = params.permit(:display_name, :friends, :nearby, :language)
 142
 143     @page = (params[:page] || 1).to_i
 144     @page_size = 20
 145
 146     @entries = @entries.visible
 147     @entries = @entries.order("created_at DESC")
 148     @entries = @entries.offset((@page - 1) * @page_size)
 149     @entries = @entries.limit(@page_size)
 150     @entries = @entries.includes(:user, :language)
 151   end
 152
 153   def rss
 154     if params[:display_name]
 155       user = User.active.find_by(:display_name => params[:display_name])
 156
 157       if user
 158         @entries = user.diary_entries
 159         @title = t("diary_entry.feed.user.title", :user => user.display_name)
 160         @description = t("diary_entry.feed.user.description", :user => user.display_name)
 161         @link = url_for :controller => "diary_entry", :action => "index", :display_name => user.display_name, :host => SERVER_URL, :protocol => SERVER_PROTOCOL
 162       else
 163         head :not_found
 164         return
 165       end
 166     else
 167       @entries = DiaryEntry.joins(:user).where(:users => { :status => %w[active confirmed] })
 168
 169       if params[:language]
 170         @entries = @entries.where(:language_code => params[:language])
 171         @title = t("diary_entry.feed.language.title", :language_name => Language.find(params[:language]).english_name)
 172         @description = t("diary_entry.feed.language.description", :language_name => Language.find(params[:language]).english_name)
 173         @link = url_for :controller => "diary_entry", :action => "index", :language => params[:language], :host => SERVER_URL, :protocol => SERVER_PROTOCOL
 174       else
 175         @title = t("diary_entry.feed.all.title")
 176         @description = t("diary_entry.feed.all.description")
 177         @link = url_for :controller => "diary_entry", :action => "index", :host => SERVER_URL, :protocol => SERVER_PROTOCOL
 178       end
 179     end
 180
 181     @entries = @entries.visible.includes(:user).order("created_at DESC").limit(20)
 182   end
 183
 184   def show
 185     @entry = @user.diary_entries.visible.where(:id => params[:id]).first
 186     if @entry
 187       @title = t "diary_entry.show.title", :user => params[:display_name], :title => @entry.title
 188     else
 189       @title = t "diary_entry.no_such_entry.title", :id => params[:id]
 190       render :action => "no_such_entry", :status => :not_found
 191     end
 192   end
 193
 194   def hide
 195     entry = DiaryEntry.find(params[:id])
 196     entry.update(:visible => false)
 197     redirect_to :action => "index", :display_name => entry.user.display_name
 198   end
 199
 200   def hidecomment
 201     comment = DiaryComment.find(params[:comment])
 202     comment.update(:visible => false)
 203     redirect_to diary_entry_path(comment.diary_entry.user, comment.diary_entry)
 204   end
 205
 206   def comments
 207     @comment_pages, @comments = paginate(:diary_comments,
 208                                          :conditions => {
 209                                            :user_id => @user,
 210                                            :visible => true
 211                                          },
 212                                          :order => "created_at DESC",
 213                                          :per_page => 20)
 214     @page = (params[:page] || 1).to_i
 215   end
 216
 217   private
 218
 219   # This is required because, being a default-deny system, cancancan
 220   # _cannot_ tell you the reason you were denied access; and so
 221   # the "nice" feedback presenting next steps can't be gleaned from
 222   # the exception
 223   ##
 224   # for the hide actions, require that the user is a administrator, or fill out
 225   # a helpful error message and return them to the user page.
 226   def deny_access(exception)
 227     if current_user && exception.action.in?([:hide, :hidecomment])
 228       flash[:error] = t("users.filter.not_an_administrator")
 229       redirect_to :action => "show"
 230     else
 231       super
 232     end
 233   end
 234
 235   ##
 236   # return permitted diary entry parameters
 237   def entry_params
 238     params.require(:diary_entry).permit(:title, :body, :language_code, :latitude, :longitude)
 239   rescue ActionController::ParameterMissing
 240     ActionController::Parameters.new.permit(:title, :body, :language_code, :latitude, :longitude)
 241   end
 242
 243   ##
 244   # return permitted diary comment parameters
 245   def comment_params
 246     params.require(:diary_comment).permit(:body)
 247   end
 248
 249   ##
 250   # decide on a location for the diary entry map
 251   def set_map_location
 252     if @diary_entry.latitude && @diary_entry.longitude
 253       @lon = @diary_entry.longitude
 254       @lat = @diary_entry.latitude
 255       @zoom = 12
 256     elsif current_user.home_lat.nil? || current_user.home_lon.nil?
 257       @lon = params[:lon] || -0.1
 258       @lat = params[:lat] || 51.5
 259       @zoom = params[:zoom] || 4
 260     else
 261       @lon = current_user.home_lon
 262       @lat = current_user.home_lat
 263       @zoom = 12
 264     end
 265   end
 266 end