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[rails.git] / 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       @og_image = @entry.body.image
72       @comments = can?(:unhide, DiaryComment) ? @entry.comments : @entry.visible_comments
73     else
74       @title = t "diary_entries.no_such_entry.title", :id => params[:id]
75       render :action => "no_such_entry", :status => :not_found
76     end
77   end
78
79   def new
80     @title = t ".title"
81
82     default_lang = current_user.preferences.find_by(:k => "diary.default_language")
83     lang_code = default_lang ? default_lang.v : current_user.preferred_language
84     @diary_entry = DiaryEntry.new(entry_params.merge(:language_code => lang_code))
85     set_map_location
86     render :action => "new"
87   end
88
89   def edit
90     @title = t ".title"
91     @diary_entry = DiaryEntry.find(params[:id])
92
93     redirect_to diary_entry_path(@diary_entry.user, @diary_entry) if current_user != @diary_entry.user
94
95     set_map_location
96   rescue ActiveRecord::RecordNotFound
97     render :action => "no_such_entry", :status => :not_found
98   end
99
100   def create
101     @title = t "diary_entries.new.title"
102
103     @diary_entry = DiaryEntry.new(entry_params)
104     @diary_entry.user = current_user
105
106     if @diary_entry.save
107       default_lang = current_user.preferences.find_by(:k => "diary.default_language")
108       if default_lang
109         default_lang.v = @diary_entry.language_code
110         default_lang.save!
111       else
112         current_user.preferences.create(:k => "diary.default_language", :v => @diary_entry.language_code)
113       end
114
115       # Subscribe user to diary comments
116       @diary_entry.subscriptions.create(:user => current_user)
117
118       redirect_to :action => "index", :display_name => current_user.display_name
119     else
120       render :action => "new"
121     end
122   end
123
124   def update
125     @title = t "diary_entries.edit.title"
126     @diary_entry = DiaryEntry.find(params[:id])
127
128     if current_user != @diary_entry.user ||
129        (params[:diary_entry] && @diary_entry.update(entry_params))
130       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
131     else
132       set_map_location
133       render :action => "edit"
134     end
135   rescue ActiveRecord::RecordNotFound
136     render :action => "no_such_entry", :status => :not_found
137   end
138
139   def subscribe
140     @diary_entry = DiaryEntry.find(params[:id])
141
142     if request.post?
143       @diary_entry.subscriptions.create(:user => current_user) unless @diary_entry.subscribers.exists?(current_user.id)
144
145       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
146     end
147   rescue ActiveRecord::RecordNotFound
148     render :action => "no_such_entry", :status => :not_found
149   end
150
151   def unsubscribe
152     @diary_entry = DiaryEntry.find(params[:id])
153
154     if request.post?
155       @diary_entry.subscriptions.where(:user => current_user).delete_all if @diary_entry.subscribers.exists?(current_user.id)
156
157       redirect_to diary_entry_path(@diary_entry.user, @diary_entry)
158     end
159   rescue ActiveRecord::RecordNotFound
160     render :action => "no_such_entry", :status => :not_found
161   end
162
163   def rss
164     if params[:display_name]
165       user = User.active.find_by(:display_name => params[:display_name])
166
167       if user
168         @entries = user.diary_entries
169         @title = t("diary_entries.feed.user.title", :user => user.display_name)
170         @description = t("diary_entries.feed.user.description", :user => user.display_name)
171         @link = url_for :action => "index", :display_name => user.display_name, :host => Settings.server_url, :protocol => Settings.server_protocol
172       else
173         head :not_found
174         return
175       end
176     else
177       @entries = DiaryEntry.joins(:user).where(:users => { :status => %w[active confirmed] })
178
179       # Items can't be flagged as deleted in the RSS format.
180       # For the general feeds, allow a delay before publishing, to help spam fighting
181       @entries = @entries.where("created_at < :time", :time => Settings.diary_feed_delay.hours.ago)
182
183       if params[:language]
184         @entries = @entries.where(:language_code => params[:language])
185         @title = t("diary_entries.feed.language.title", :language_name => Language.find(params[:language]).english_name)
186         @description = t("diary_entries.feed.language.description", :language_name => Language.find(params[:language]).english_name)
187         @link = url_for :action => "index", :language => params[:language], :host => Settings.server_url, :protocol => Settings.server_protocol
188       else
189         @title = t("diary_entries.feed.all.title")
190         @description = t("diary_entries.feed.all.description")
191         @link = url_for :action => "index", :host => Settings.server_url, :protocol => Settings.server_protocol
192       end
193     end
194     @entries = @entries.visible.includes(:user).order("created_at DESC").limit(20)
195   end
196
197   def hide
198     entry = DiaryEntry.find(params[:id])
199     entry.update(:visible => false)
200     redirect_to :action => "index", :display_name => entry.user.display_name
201   end
202
203   def unhide
204     entry = DiaryEntry.find(params[:id])
205     entry.update(:visible => true)
206     redirect_to :action => "index", :display_name => entry.user.display_name
207   end
208
209   private
210
211   ##
212   # return permitted diary entry parameters
213   def entry_params
214     params.require(:diary_entry).permit(:title, :body, :language_code, :latitude, :longitude)
215   rescue ActionController::ParameterMissing
216     ActionController::Parameters.new.permit(:title, :body, :language_code, :latitude, :longitude)
217   end
218
219   ##
220   # decide on a location for the diary entry map
221   def set_map_location
222     if @diary_entry.latitude && @diary_entry.longitude
223       @lon = @diary_entry.longitude
224       @lat = @diary_entry.latitude
225       @zoom = 12
226     elsif !current_user.home_location?
227       @lon = params[:lon] || -0.1
228       @lat = params[:lat] || 51.5
229       @zoom = params[:zoom] || 4
230     else
231       @lon = current_user.home_lon
232       @lat = current_user.home_lat
233       @zoom = 12
234     end
235   end
236 end