X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/6559db51dfcdc10187d3e8f845474729dbb9faa6..0c90905495a5d9fd40282456b4d4098da6adda48:/app/models/trace.rb

diff --git a/app/models/trace.rb b/app/models/trace.rb
index 7c4b5de18..baf2ea7d2 100644
--- a/app/models/trace.rb
+++ b/app/models/trace.rb
@@ -1,8 +1,25 @@
 class Trace < ActiveRecord::Base
   set_table_name 'gpx_files'
 
+  validates_presence_of :user_id, :name, :timestamp
+  validates_presence_of :description, :on => :create
+#  validates_numericality_of :latitude, :longitude
+  validates_inclusion_of :public, :inserted, :in => [ true, false]
+  
   belongs_to :user
-  has_many :tags, :class_name => 'Tracetag', :foreign_key => 'gpx_id', :dependent => :destroy
+  has_many :tags, :class_name => 'Tracetag', :foreign_key => 'gpx_id', :dependent => :delete_all
+  has_many :points, :class_name => 'Tracepoint', :foreign_key => 'gpx_id', :dependent => :delete_all
+
+  def destroy
+    super
+    FileUtils.rm_f(trace_name)
+    FileUtils.rm_f(icon_picture_name)
+    FileUtils.rm_f(large_picture_name)
+  end
+
+  def tagstring
+    return tags.collect {|tt| tt.tag}.join(" ")
+  end
 
   def tagstring=(s)
     self.tags = s.split().collect {|tag|
@@ -11,4 +28,201 @@ class Trace < ActiveRecord::Base
       tt
     }
   end
+  
+  def large_picture= (data)
+    f = File.new(large_picture_name, "wb")
+    f.syswrite(data)
+    f.close
+  end
+  
+  def icon_picture= (data)
+    f = File.new(icon_picture_name, "wb")
+    f.syswrite(data)
+    f.close
+  end
+
+  def large_picture
+    f = File.new(large_picture_name, "rb")
+    logger.info "large picture file: '#{f.path}', bytes: #{File.size(f.path)}"
+    data = f.sysread(File.size(f.path))
+    logger.info "have read data, bytes: '#{data.length}'"
+    f.close
+    data
+  end
+  
+  def icon_picture
+    f = File.new(icon_picture_name, "rb")
+    logger.info "icon picture file: '#{f.path}'"
+    data = f.sysread(File.size(f.path))
+    f.close
+    data
+  end
+  
+  # FIXME change to permanent filestore area
+  def large_picture_name
+    "/home/osm/icons/#{id}.gif"
+  end
+
+  # FIXME change to permanent filestore area
+  def icon_picture_name
+    "/home/osm/icons/#{id}_icon.gif"
+  end
+
+  def trace_name
+    "/home/osm/gpx/#{id}.gpx"
+  end
+
+  def mime_type
+    filetype = `/usr/bin/file -bz #{trace_name}`.chomp
+    gzipped = filetype =~ /gzip compressed/
+    bzipped = filetype =~ /bzip2 compressed/
+    zipped = filetype =~ /Zip archive/
+
+    if gzipped then
+      mimetype = "application/x-gzip"
+    elsif bzipped then
+      mimetype = "application/x-bzip2"
+    elsif zipped
+      mimetype = "application/x-zip"
+    else
+      mimetype = "text/xml"
+    end
+
+    return mimetype
+  end
+
+  def extension_name
+    filetype = `/usr/bin/file -bz #{trace_name}`.chomp
+    gzipped = filetype =~ /gzip compressed/
+    bzipped = filetype =~ /bzip2 compressed/
+    zipped = filetype =~ /Zip archive/
+    tarred = filetype =~ /tar archive/
+
+    if tarred and gzipped then
+      extension = ".tar.gz"
+    elsif tarred and bzipped then
+      extension = ".tar.bz2"
+    elsif tarred
+      extension = ".tar"
+    elsif gzipped
+      extension = ".gpx.gz"
+    elsif bzipped
+      extension = ".gpx.bz2"
+    elsif zipped
+      extension = ".zip"
+    else
+      extension = ".gpx"
+    end
+
+    return extension
+  end
+
+  def to_xml
+    doc = OSM::API.new.get_xml_doc
+    doc.root << to_xml_node()
+    return doc
+  end
+
+  def to_xml_node
+    el1 = XML::Node.new 'gpx_file'
+    el1['id'] = self.id.to_s
+    el1['name'] = self.name.to_s
+    el1['lat'] = self.latitude.to_s
+    el1['lon'] = self.longitude.to_s
+    el1['user'] = self.user.display_name
+    el1['public'] = self.public.to_s
+    el1['pending'] = (!self.inserted).to_s
+    el1['timestamp'] = self.timestamp.xmlschema
+    return el1
+  end
+
+  def import
+    begin
+      logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
+
+      # TODO *nix specific, could do to work on windows... would be functionally inferior though - check for '.gz'
+      filetype = `/usr/bin/file -bz #{trace_name}`.chomp
+      gzipped = filetype =~ /gzip compressed/
+      bzipped = filetype =~ /bzip2 compressed/
+      zipped = filetype =~ /Zip archive/
+      tarred = filetype =~ /tar archive/
+
+      if tarred and gzipped then
+        filename = tempfile = "/tmp/#{rand}"
+        system("tar -zxOf #{trace_name} > #{filename}")
+      elsif tarred and bzipped then
+        filename = tempfile = "/tmp/#{rand}"
+        system("tar -jxOf #{trace_name} > #{filename}")
+      elsif tarred
+        filename = tempfile = "/tmp/#{rand}"
+        system("tar -xOf #{trace_name} > #{filename}")
+      elsif gzipped
+        filename = tempfile = "/tmp/#{rand}"
+        system("gunzip -c #{trace_name} > #{filename}")
+      elsif bzipped
+        filename = tempfile = "/tmp/#{rand}"
+        system("bunzip2 -c #{trace_name} > #{filename}")
+      elsif zipped
+        filename = tempfile = "/tmp/#{rand}"
+        system("unzip -p #{trace_name} > #{filename}")
+      else
+        filename = trace_name
+      end
+
+      gpx = OSM::GPXImporter.new(filename)
+
+      f_lat = 0
+      f_lon = 0
+      first = true
+
+      # If there are any existing points for this trace then delete
+      # them - we check for existing points first to avoid locking
+      # the table in the common case where there aren't any.
+      if Tracepoint.exists?(['gpx_id = ?', self.id])
+        Tracepoint.delete_all(['gpx_id = ?', self.id])
+      end
+
+      gpx.points do |point|
+        if first
+          f_lat = point['latitude']
+          f_lon = point['longitude']
+        end
+
+        tp = Tracepoint.new
+        tp.lat = point['latitude'].to_f
+        tp.lon = point['longitude'].to_f
+        tp.altitude = point['altitude'].to_f
+        tp.timestamp = point['timestamp']
+        tp.gpx_id = id
+        tp.trackid = point['segment'].to_i
+        tp.save!
+      end
+
+      if gpx.actual_points > 0
+        max_lat = Tracepoint.maximum('latitude', :conditions => ['gpx_id = ?', id])
+        min_lat = Tracepoint.minimum('latitude', :conditions => ['gpx_id = ?', id])
+        max_lon = Tracepoint.maximum('longitude', :conditions => ['gpx_id = ?', id])
+        min_lon = Tracepoint.minimum('longitude', :conditions => ['gpx_id = ?', id])
+
+        max_lat = max_lat.to_f / 10000000
+        min_lat = min_lat.to_f / 10000000
+        max_lon = max_lon.to_f / 10000000
+        min_lon = min_lon.to_f / 10000000
+
+        self.latitude = f_lat
+        self.longitude = f_lon
+        self.large_picture = gpx.get_picture(min_lat, min_lon, max_lat, max_lon, gpx.actual_points)
+        self.icon_picture = gpx.get_icon(min_lat, min_lon, max_lat, max_lon)
+        self.size = gpx.actual_points
+        self.inserted = true
+        self.save!
+      end
+
+      logger.info "done trace #{id}"
+
+      return gpx
+    ensure
+      FileUtils.rm_f(tempfile) if tempfile
+    end
+  end
 end