class Trace < ActiveRecord::Base
set_table_name 'gpx_files'
+ validates_presence_of :user_id, :name, :timestamp
+ validates_presence_of :description, :on => :create
+ validates_length_of :name, :maximum => 255
+ validates_length_of :description, :maximum => 255
+# 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'
+ 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|
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
+
+ def large_picture_name
+ "#{GPX_IMAGE_DIR}/#{id}.gif"
+ end
+
+ def icon_picture_name
+ "#{GPX_IMAGE_DIR}/#{id}_icon.gif"
+ end
+
+ def trace_name
+ "#{GPX_TRACE_DIR}/#{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 xml_file
+ # 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 gzipped or bzipped or zipped or tarred then
+ tmpfile = Tempfile.new("trace.#{id}");
+
+ if tarred and gzipped then
+ system("tar -zxOf #{trace_name} > #{tmpfile.path}")
+ elsif tarred and bzipped then
+ system("tar -jxOf #{trace_name} > #{tmpfile.path}")
+ elsif tarred
+ system("tar -xOf #{trace_name} > #{tmpfile.path}")
+ elsif gzipped
+ system("gunzip -c #{trace_name} > #{tmpfile.path}")
+ elsif bzipped
+ system("bunzip2 -c #{trace_name} > #{tmpfile.path}")
+ elsif zipped
+ system("unzip -p #{trace_name} -x '__MACOSX/*' > #{tmpfile.path}")
+ end
+
+ tmpfile.unlink
+
+ file = tmpfile.file
+ else
+ file = File.open(trace_name)
+ end
+
+ return file
+ end
+
+ def import
+ logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
+
+ gpx = GPX::File.new(self.xml_file)
+
+ 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.find(:first, :conditions => ['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
+ first = false
+ end
+
+ tp = Tracepoint.new
+ tp.lat = point.latitude
+ tp.lon = point.longitude
+ tp.altitude = point.altitude
+ tp.timestamp = point.timestamp
+ tp.gpx_id = id
+ tp.trackid = point.segment
+ 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.picture(min_lat, min_lon, max_lat, max_lon, gpx.actual_points)
+ self.icon_picture = gpx.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
+ end
end
projects / rails.git / blobdiff