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[rails.git] / app / models / trace.rb

diff --git a/app/models/trace.rb b/app/models/trace.rb
index 24f93236a7367200d6c50f8aa4eccbfdce9a32ec..85c0244d5b89175e595e436119280feb7b8b8ec3 100644 (file)
--- a/app/models/trace.rb
+++ b/app/models/trace.rb
@@ -1,17 +1,20 @@
 class Trace < ActiveRecord::Base
 class Trace < ActiveRecord::Base

-  set_table_name 'gpx_files'
+  self.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 :inserted, :in => [ true, false ]
-  validates_inclusion_of :visibility, :in => ["private", "public", "trackable", "identifiable"]
+  belongs_to :user, :counter_cache => true
+  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

 
 

-  belongs_to :user
-  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
+  scope :visible, -> { where(:visible => true) }
+  scope :visible_to, ->(u) { visible.where("visibility IN ('public', 'identifiable') OR user_id = ?", u) }
+  scope :visible_to_all, -> { where(:visibility => %w(public identifiable)) }
+  scope :tagged, ->(t) { joins(:tags).where(:gpx_file_tags => { :tag => t }) }
+
+  validates :user, :presence => true, :associated => true
+  validates :name, :presence => true, :length => 1..255
+  validates :description, :presence => { :on => :create }, :length => 1..255
+  validates :timestamp, :presence => true
+  validates :visibility, :inclusion => %w(private public trackable identifiable)

 
   def destroy
     super
 
   def destroy
     super


@@ -21,24 +24,24 @@ class Trace < ActiveRecord::Base
   end
 
   def tagstring
   end
 
   def tagstring

-    return tags.collect {|tt| tt.tag}.join(", ")
+    tags.collect(&:tag).join(", ")

   end
 
   def tagstring=(s)
   end
 
   def tagstring=(s)

-    if s.include? ','
-      self.tags = s.split(/\s*,\s*/).select {|tag| tag !~ /^\s*$/}.collect {|tag|
-        tt = Tracetag.new
-        tt.tag = tag
-        tt
-      }
-    else
-      #do as before for backwards compatibility:
-      self.tags = s.split().collect {|tag|
-        tt = Tracetag.new
-        tt.tag = tag
-        tt
-      }
-    end
+    self.tags = if s.include? ","
+                  s.split(/\s*,\s*/).select { |tag| tag !~ /^\s*$/ }.collect do |tag|
+                    tt = Tracetag.new
+                    tt.tag = tag
+                    tt
+                  end
+                else
+                  # do as before for backwards compatibility:
+                  s.split.collect do |tag|
+                    tt = Tracetag.new
+                    tt.tag = tag
+                    tt
+                  end
+                end

   end
 
   def public?
   end
 
   def public?


@@ -53,13 +56,13 @@ class Trace < ActiveRecord::Base
     visibility == "identifiable"
   end
 
     visibility == "identifiable"
   end
 

-  def large_picture= (data)
+  def large_picture=(data)

     f = File.new(large_picture_name, "wb")
     f.syswrite(data)
     f.close
   end
     f = File.new(large_picture_name, "wb")
     f.syswrite(data)
     f.close
   end

-  
-  def icon_picture= (data)
+
+  def icon_picture=(data)

     f = File.new(icon_picture_name, "wb")
     f.syswrite(data)
     f.close
     f = File.new(icon_picture_name, "wb")
     f.syswrite(data)
     f.close


@@ -67,21 +70,18 @@ class Trace < ActiveRecord::Base
 
   def large_picture
     f = File.new(large_picture_name, "rb")
 
   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))
     data = f.sysread(File.size(f.path))

-    logger.info "have read data, bytes: '#{data.length}'"

     f.close
     data
   end
     f.close
     data
   end

-  
+

   def icon_picture
     f = File.new(icon_picture_name, "rb")
   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
     data = f.sysread(File.size(f.path))
     f.close
     data
   end

-  
+

   def large_picture_name
     "#{GPX_IMAGE_DIR}/#{id}.gif"
   end
   def large_picture_name
     "#{GPX_IMAGE_DIR}/#{id}.gif"
   end


@@ -99,18 +99,21 @@ class Trace < ActiveRecord::Base
     gzipped = filetype =~ /gzip compressed/
     bzipped = filetype =~ /bzip2 compressed/
     zipped = filetype =~ /Zip archive/
     gzipped = filetype =~ /gzip compressed/
     bzipped = filetype =~ /bzip2 compressed/
     zipped = filetype =~ /Zip archive/

+    tarred = filetype =~ /tar 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
+    mimetype = if gzipped
+                 "application/x-gzip"
+               elsif bzipped
+                 "application/x-bzip2"
+               elsif zipped
+                 "application/x-zip"
+               elsif tarred
+                 "application/x-tar"
+               else
+                 "application/gpx+xml"
+               end
+
+    mimetype

   end
 
   def extension_name
   end
 
   def extension_name


@@ -120,58 +123,113 @@ class Trace < ActiveRecord::Base
     zipped = filetype =~ /Zip archive/
     tarred = filetype =~ /tar archive/
 
     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
+    extension = if tarred && gzipped
+                  ".tar.gz"
+                elsif tarred && bzipped
+                  ".tar.bz2"
+                elsif tarred
+                  ".tar"
+                elsif gzipped
+                  ".gpx.gz"
+                elsif bzipped
+                  ".gpx.bz2"
+                elsif zipped
+                  ".zip"
+                else
+                  ".gpx"
+                end
+
+    extension

   end
 
   def to_xml
     doc = OSM::API.new.get_xml_doc
   end
 
   def to_xml
     doc = OSM::API.new.get_xml_doc

-    doc.root << to_xml_node()
-    return doc
+    doc.root << to_xml_node
+    doc

   end
 
   def to_xml_node
   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['visibility'] = self.visibility
-    el1['pending'] = (!self.inserted).to_s
-    el1['timestamp'] = self.timestamp.xmlschema
-    return el1
+    el1 = XML::Node.new "gpx_file"
+    el1["id"] = id.to_s
+    el1["name"] = name.to_s
+    el1["lat"] = latitude.to_s if inserted
+    el1["lon"] = longitude.to_s if inserted
+    el1["user"] = user.display_name
+    el1["visibility"] = visibility
+    el1["pending"] = inserted ? "false" : "true"
+    el1["timestamp"] = timestamp.xmlschema
+
+    el2 = XML::Node.new "description"
+    el2 << description
+    el1 << el2
+
+    tags.each do |tag|
+      el2 = XML::Node.new("tag")
+      el2 << tag.tag
+      el1 << el2
+    end
+
+    el1
+  end
+
+  # Read in xml as text and return it's Node object representation
+  def self.from_xml(xml, create = false)
+    p = XML::Parser.string(xml)
+    doc = p.parse
+
+    doc.find("//osm/gpx_file").each do |pt|
+      return Trace.from_xml_node(pt, create)
+    end
+
+    raise OSM::APIBadXMLError.new("trace", xml, "XML doesn't contain an osm/gpx_file element.")
+  rescue LibXML::XML::Error, ArgumentError => ex
+    raise OSM::APIBadXMLError.new("trace", xml, ex.message)
+  end
+
+  def self.from_xml_node(pt, create = false)
+    trace = Trace.new
+
+    raise OSM::APIBadXMLError.new("trace", pt, "visibility missing") if pt["visibility"].nil?
+    trace.visibility = pt["visibility"]
+
+    unless create
+      raise OSM::APIBadXMLError.new("trace", pt, "ID is required when updating.") if pt["id"].nil?
+      trace.id = pt["id"].to_i
+      # .to_i will return 0 if there is no number that can be parsed.
+      # We want to make sure that there is no id with zero anyway
+      raise OSM::APIBadUserInput.new("ID of trace cannot be zero when updating.") if trace.id.zero?
+    end
+
+    # We don't care about the time, as it is explicitly set on create/update/delete
+    # We don't care about the visibility as it is implicit based on the action
+    # and set manually before the actual delete
+    trace.visible = true
+
+    description = pt.find("description").first
+    raise OSM::APIBadXMLError.new("trace", pt, "description missing") if description.nil?
+    trace.description = description.content
+
+    pt.find("tag").each do |tag|
+      trace.tags.build(:tag => tag.content)
+    end
+
+    trace

   end
 
   def xml_file
   end
 
   def xml_file

-    # TODO *nix specific, could do to work on windows... would be functionally inferior though - check for '.gz'
+    # 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/
 
     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 gzipped || bzipped || zipped || tarred
+      tmpfile = Tempfile.new("trace.#{id}")

 
 

-      if tarred and gzipped then
+      if tarred && gzipped

         system("tar -zxOf #{trace_name} > #{tmpfile.path}")
         system("tar -zxOf #{trace_name} > #{tmpfile.path}")

-      elsif tarred and bzipped then
+      elsif tarred && bzipped

         system("tar -jxOf #{trace_name} > #{tmpfile.path}")
       elsif tarred
         system("tar -xOf #{trace_name} > #{tmpfile.path}")
         system("tar -jxOf #{trace_name} > #{tmpfile.path}")
       elsif tarred
         system("tar -xOf #{trace_name} > #{tmpfile.path}")


@@ -180,7 +238,7 @@ class Trace < ActiveRecord::Base
       elsif bzipped
         system("bunzip2 -c #{trace_name} > #{tmpfile.path}")
       elsif zipped
       elsif bzipped
         system("bunzip2 -c #{trace_name} > #{tmpfile.path}")
       elsif zipped

-        system("unzip -p #{trace_name} -x '__MACOSX/*' > #{tmpfile.path}")
+        system("unzip -p #{trace_name} -x '__MACOSX/*' > #{tmpfile.path} 2> /dev/null")

       end
 
       tmpfile.unlink
       end
 
       tmpfile.unlink


@@ -190,24 +248,20 @@ class Trace < ActiveRecord::Base
       file = File.open(trace_name)
     end
 
       file = File.open(trace_name)
     end
 

-    return file
+    file

   end
 
   def import
     logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
 
   end
 
   def import
     logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
 

-    gpx = GPX::File.new(self.xml_file)
+    gpx = GPX::File.new(xml_file)

 
     f_lat = 0
     f_lon = 0
     first = true
 
 
     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
+    # If there are any existing points for this trace then delete them
+    Tracepoint.delete_all(:gpx_id => id)

 
     gpx.points do |point|
       if first
 
     gpx.points do |point|
       if first


@@ -227,10 +281,10 @@ class Trace < ActiveRecord::Base
     end
 
     if gpx.actual_points > 0
     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 = Tracepoint.where(:gpx_id => id).maximum(:latitude)
+      min_lat = Tracepoint.where(:gpx_id => id).minimum(:latitude)
+      max_lon = Tracepoint.where(:gpx_id => id).maximum(:longitude)
+      min_lon = Tracepoint.where(:gpx_id => id).minimum(:longitude)

 
       max_lat = max_lat.to_f / 10000000
       min_lat = min_lat.to_f / 10000000
 
       max_lat = max_lat.to_f / 10000000
       min_lat = min_lat.to_f / 10000000


@@ -243,11 +297,11 @@ class Trace < ActiveRecord::Base
       self.icon_picture = gpx.icon(min_lat, min_lon, max_lat, max_lon)
       self.size = gpx.actual_points
       self.inserted = true
       self.icon_picture = gpx.icon(min_lat, min_lon, max_lat, max_lon)
       self.size = gpx.actual_points
       self.inserted = true

-      self.save!
+      save!

     end
 
     logger.info "done trace #{id}"
 
     end
 
     logger.info "done trace #{id}"
 

-    return gpx
+    gpx

   end
 end
   end
 end