start of unwayed segments support

[rails.git] / app / controllers / trace_controller.rb

diff --git a/app/controllers/trace_controller.rb b/app/controllers/trace_controller.rb
index f7f323e9c5af550a7284b7c63f6f4598a82c102e..541e0f840fe460e4c6ded2c180d62d4660d04b56 100644 (file)
--- a/app/controllers/trace_controller.rb
+++ b/app/controllers/trace_controller.rb
@@ -1,13 +1,89 @@
 class TraceController < ApplicationController
   before_filter :authorize_web  
 class TraceController < ApplicationController
   before_filter :authorize_web  

+  before_filter :authorize, :only => [:api_details, :api_data, :api_create]

   layout 'site'
   layout 'site'

+  
+  # Counts and selects pages of GPX traces for various criteria (by user, tags, public etc.).
+  #  target_user - if set, specifies the user to fetch traces for.  if not set will fetch all traces
+  #  paging_action - the action that will be linked back to from view
+  def list (target_user = nil, paging_action = 'list')
+    @traces_per_page = 20
+    page_index = params[:page] ? params[:page].to_i - 1 : 0 # nice 1-based page -> 0-based page index

 
 

-  def list
-    @traces = Trace.find(:all, :conditions => ['public = true'])
+    # from display name, pick up user id if one user's traces only
+    display_name = params[:display_name]
+    if target_user.nil? and display_name and display_name != ''
+      target_user = User.find(:first, :conditions => [ "display_name = ?", display_name])
+    end
+
+    opt = Hash.new
+    opt[:include] = [:user, :tags] # load users and tags from db at same time as traces
+
+    # four main cases:
+    # 1 - all traces, logged in = all public traces + all user's (i.e + all mine)
+    # 2 - all traces, not logged in = all public traces
+    # 3 - user's traces, logged in as same user = all user's traces 
+    # 4 - user's traces, not logged in as that user = all user's public traces
+    if target_user.nil? # all traces
+      if @user
+        conditions = ["(public = 1 OR user_id = ?)", @user.id] #1
+      else
+        conditions  = ["public = 1"] #2
+      end
+    else
+      if @user and @user.id == target_user.id
+        conditions = ["user_id = ?", @user.id] #3 (check vs user id, so no join + can't pick up non-public traces by changing name)
+      else
+        conditions = ["public = 1 AND user_id = ?", target_user.id] #4
+      end
+    end
+    conditions[0] += " AND users.display_name != ''" # users need to set display name before traces will be exposed
+    
+    opt[:order] = 'timestamp DESC'
+    if params[:tag]
+      @tag = params[:tag]
+      conditions[0] += " AND gpx_file_tags.tag = ?"
+      conditions << @tag;
+    end
+    
+    opt[:conditions] = conditions
+
+    # count traces using all options except limit
+    @max_trace = Trace.count(opt)
+    @max_page = Integer((@max_trace + 1) / @traces_per_page) 
+    
+    # last step before fetch - add paging options
+    opt[:limit] = @traces_per_page
+    if page_index > 0
+      opt[:offset] = @traces_per_page * page_index
+    end
+
+    @traces = Trace.find(:all , opt)
+    
+    # put together SET of tags across traces, for related links
+    tagset = Hash.new
+    if @traces
+      @traces.each do |trace|
+        trace.tags.reload if params[:tag] # if searched by tag, ActiveRecord won't bring back other tags, so do explicitly here
+        trace.tags.each do |tag|
+          tagset[tag.tag] = tag.tag
+        end
+      end
+    end
+    
+    # final helper vars for view
+    @display_name = display_name
+    @all_tags = tagset.values
+    @paging_action = paging_action # the action that paging requests should route back to, e.g. 'list' or 'mine'
+    @page = page_index + 1 # nice 1-based external page numbers

   end
 
   def mine
   end
 
   def mine

-    @traces = Trace.find(:all, :conditions => ['user_id = ?', @user.id])
+    if @user
+      list(@user, 'mine') unless @user.nil?
+    else
+      redirect_to :controller => 'user', :action => 'login'
+    end

   end
 
   def view
   end
 
   def view


@@ -24,28 +100,102 @@ class TraceController < ApplicationController
 
     File.open(filename, "w") { |f| f.write(@params['trace']['gpx_file'].read) }
     @params['trace']['name'] = @params['trace']['gpx_file'].original_filename.gsub(/[^a-zA-Z0-9.]/, '_') # This makes sure filenames are sane
 
     File.open(filename, "w") { |f| f.write(@params['trace']['gpx_file'].read) }
     @params['trace']['name'] = @params['trace']['gpx_file'].original_filename.gsub(/[^a-zA-Z0-9.]/, '_') # This makes sure filenames are sane

-    @params['trace'].delete('gpx_file') # let's remove the field from the hash, because there's no such field in the DB anyway.
+    @params['trace'].delete('gpx_file') # remove the field from the hash, because there's no such field in the DB

     @trace = Trace.new(@params['trace'])
     @trace.inserted = false
     @trace = Trace.new(@params['trace'])
     @trace.inserted = false

-    @trace.user_id = @user.id
+    @trace.user = @user

     @trace.timestamp = Time.now
     @trace.timestamp = Time.now

+

     if @trace.save
     if @trace.save

+      saved_filename = "/home/osm/gpx/#{@trace.id}.gpx"
+      File.rename(filename, saved_filename)
+

       logger.info("id is #{@trace.id}")
       logger.info("id is #{@trace.id}")

-      `mv #{filename} /tmp/#{@trace.id}.gpx`

       flash[:notice] = "Your GPX file has been uploaded and is awaiting insertion in to the database. This will usually happen within half an hour, and an email will be sent to you on completion."
       flash[:notice] = "Your GPX file has been uploaded and is awaiting insertion in to the database. This will usually happen within half an hour, and an email will be sent to you on completion."

+      redirect_to :action => 'mine'
+    else
+      # fixme throw an error here
+       redirect_to :action => 'mine'
+       flash[:notice] = "You haven't entered a tag or a description for yoru traces."
+    end
+  end
+
+  def data
+    trace = Trace.find(params[:id])
+    if trace.public? or (@user and @user == trace.user)
+      send_data(File.open("/home/osm/gpx/#{trace.id}.gpx",'r').read , :filename => "#{trace.id}.gpx", :type => 'text/plain', :disposition => 'inline')
+    end
+  end
+
+  def make_public
+    trace = Trace.find(params[:id])
+    if @user and trace.user == @user and !trace.public
+      trace.public = true
+      trace.save
+      flash[:notice] = 'Track made public'
+      redirect_to :controller => 'trace', :action => 'view', :id => params[:id]
+    end
+  end
+
+  def georss
+    traces = Trace.find(:all, :conditions => ['public = true'], :order => 'timestamp DESC', :limit => 20)
+
+    rss = OSM::GeoRSS.new
+
+    #def add(latitude=0, longitude=0, title_text='dummy title', url='http://www.example.com/', description_text='dummy description', timestamp=Time.now)
+    traces.each do |trace|
+      rss.add(trace.latitude, trace.longitude, trace.name, url_for({:controller => 'trace', :action => 'view', :id => trace.id, :display_name => trace.user.display_name}), "<img src='#{url_for({:controller => 'trace', :action => 'icon', :id => trace.id, :user_login => trace.user.display_name})}'> GPX file with #{trace.size} points from #{trace.user.display_name}", trace.timestamp)

     end
 
     end
 

-    redirect_to :action => 'mine'
+    response.headers["Content-Type"] = 'application/xml+rss'
+
+    render :text => rss.to_s

   end
 
   def picture
     trace = Trace.find(params[:id])
   end
 
   def picture
     trace = Trace.find(params[:id])

-    send_data(trace.large_picture, :filename => "#{trace.id}.gif", :type => 'image/png', :disposition => 'inline') if trace.public
+    send_data(trace.large_picture, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline') if trace.public? or (@user and @user == trace.user)

   end
 
   def icon
     trace = Trace.find(params[:id])
   end
 
   def icon
     trace = Trace.find(params[:id])

-    send_data(trace.icon_picture, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline') if trace.public
+    send_data(trace.icon_picture, :filename => "#{trace.id}_icon.gif", :type => 'image/gif', :disposition => 'inline') if trace.public? or (@user and @user == trace.user)
+  end
+
+  def api_details
+    trace = Trace.find(params[:id])
+    doc = OSM::API.new.get_xml_doc
+    doc.root << trace.to_xml_node() if trace.public? or trace.user == @user
+    render :text => doc.to_s
+  end
+
+  def api_data
+    render :action => 'data'

   end
 
   end
 

+  def api_create
+    #FIXME merge this code with create as they're pretty similar?
+    
+    filename = "/tmp/#{rand}"
+    File.open(filename, "w") { |f| f.write(request.raw_post) }
+    @params['trace'] = {}
+    @params['trace']['name'] = params[:filename]
+    @params['trace']['tagstring'] = params[:tags]
+    @params['trace']['description'] = params[:description]
+    @trace = Trace.new(@params['trace'])
+    @trace.inserted = false
+    @trace.user = @user
+    @trace.timestamp = Time.now
+
+    if @trace.save
+      saved_filename = "/home/osm/gpx/#{@trace.id}.gpx"
+      File.rename(filename, saved_filename)
+      logger.info("id is #{@trace.id}")
+      flash[:notice] = "Your GPX file has been uploaded and is awaiting insertion in to the database. This will usually happen within half an hour, and an email will be sent to you on completion."
+      render :nothing => true
+    else
+      render :nothing => true, :status => 400 # er FIXME what fricking code to return?
+    end
+
+  end

 end
 end