X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/e660e609661edadc1ed5ad49d6e83e936b2f91cd..ae4487921350e141efed42fdf7cd3fd70d72bc97:/app/models/trace.rb

diff --git a/app/models/trace.rb b/app/models/trace.rb
index b72fda07d..214b0b647 100644
--- a/app/models/trace.rb
+++ b/app/models/trace.rb
@@ -1,21 +1,47 @@
+# == Schema Information
+#
+# Table name: gpx_files
+#
+#  id          :integer          not null, primary key
+#  user_id     :integer          not null
+#  visible     :boolean          default(TRUE), not null
+#  name        :string           default(""), not null
+#  size        :integer
+#  latitude    :float
+#  longitude   :float
+#  timestamp   :datetime         not null
+#  description :string           default(""), not null
+#  inserted    :boolean          not null
+#  visibility  :enum             default("public"), not null
+#
+# Indexes
+#
+#  gpx_files_timestamp_idx           (timestamp)
+#  gpx_files_user_id_idx             (user_id)
+#  gpx_files_visible_visibility_idx  (visible,visibility)
+#
+# Foreign Keys
+#
+#  gpx_files_user_id_fkey  (user_id => users.id)
+#
+
 class Trace < ActiveRecord::Base
   self.table_name = "gpx_files"
 
-  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
+  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
 
-  scope :visible, where(:visible => true)
-  scope :visible_to, lambda { |u| visible.where("visibility IN ('public', 'identifiable') OR user_id = ?", u) }
-  scope :public, where(:visibility => ["public", "identifiable"])
+  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_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"]
+  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
@@ -25,24 +51,24 @@ class Trace < ActiveRecord::Base
   end
 
   def tagstring
-    return tags.collect {|tt| tt.tag}.join(", ")
+    tags.collect(&:tag).join(", ")
   end
 
   def tagstring=(s)
-    if s.include? ','
-      self.tags = s.split(/\s*,\s*/).select {|tag| tag !~ /^\s*$/}.collect {|tag|
-        tt = Tracetag.new
-        tt.tag = tag
-        tt
-      }
-    else
-      #do as before for backwards compatibility:
-      self.tags = s.split().collect {|tag|
-        tt = Tracetag.new
-        tt.tag = tag
-        tt
-      }
-    end
+    self.tags = if s.include? ","
+                  s.split(/\s*,\s*/).reject { |tag| tag =~ /^\s*$/ }.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?
@@ -57,13 +83,13 @@ class Trace < ActiveRecord::Base
     visibility == "identifiable"
   end
 
-  def large_picture= (data)
+  def large_picture=(data)
     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
@@ -71,21 +97,18 @@ class Trace < ActiveRecord::Base
 
   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
@@ -99,140 +122,137 @@ class Trace < ActiveRecord::Base
   end
 
   def mime_type
-    filetype = `/usr/bin/file -bz #{trace_name}`.chomp
+    filetype = `/usr/bin/file -Lbz #{trace_name}`.chomp
     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
-    filetype = `/usr/bin/file -bz #{trace_name}`.chomp
+    filetype = `/usr/bin/file -Lbz #{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
+    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
-    doc.root << to_xml_node()
-    return doc
+    doc.root << to_xml_node
+    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 if self.inserted
-    el1['lon'] = self.longitude.to_s if self.inserted
-    el1['user'] = self.user.display_name
-    el1['visibility'] = self.visibility
-    el1['pending'] = (!self.inserted).to_s
-    el1['timestamp'] = self.timestamp.xmlschema
-
-    el2 = XML::Node.new 'description'
-    el2 << self.description
+    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
 
-    self.tags.each do |tag|
-      el2 = XML::Node.new('tag')
+    tags.each do |tag|
+      el2 = XML::Node.new("tag")
       el2 << tag.tag
       el1 << el2
     end
 
-    return el1
+    el1
   end
 
-  # Read in xml as text and return it's Node object representation
-  def self.from_xml(xml, create=false)
-    begin
-      p = XML::Parser.string(xml)
-      doc = p.parse
+  def update_from_xml(xml, create = false)
+    p = XML::Parser.string(xml, :options => XML::Parser::Options::NOERROR)
+    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)
+    doc.find("//osm/gpx_file").each do |pt|
+      return update_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']
+  def update_from_xml_node(pt, create = false)
+    raise OSM::APIBadXMLError.new("trace", pt, "visibility missing") if pt["visibility"].nil?
+    self.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. 
+      raise OSM::APIBadXMLError.new("trace", pt, "ID is required when updating.") if pt["id"].nil?
+      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 == 0
+      raise OSM::APIBadUserInput, "ID of trace cannot be zero when updating." if id.zero?
+      raise OSM::APIBadUserInput, "The id in the url (#{self.id}) is not the same as provided in the xml (#{id})" unless self.id == id
     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
+    self.visible = true
 
-    description = pt.find('description').first
+    description = pt.find("description").first
     raise OSM::APIBadXMLError.new("trace", pt, "description missing") if description.nil?
-    trace.description = description.content
+    self.description = description.content
 
-    pt.find('tag').each do |tag|
-      trace.tags.build(:tag => tag.content)
+    self.tags = pt.find("tag").collect do |tag|
+      Tracetag.new(:tag => tag.content)
     end
-
-    return trace
   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
+    # TODO: *nix specific, could do to work on windows... would be functionally inferior though - check for '.gz'
+    filetype = `/usr/bin/file -Lbz #{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}")
-      elsif tarred and bzipped then
+      elsif tarred && bzipped
         system("tar -jxOf #{trace_name} > #{tmpfile.path}")
       elsif tarred
         system("tar -xOf #{trace_name} > #{tmpfile.path}")
@@ -241,7 +261,7 @@ class Trace < ActiveRecord::Base
       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
@@ -251,24 +271,20 @@ class Trace < ActiveRecord::Base
       file = File.open(trace_name)
     end
 
-    return file
+    file
   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
 
-    # 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.where(:gpx_id => self.id).exists?
-      Tracepoint.delete_all(:gpx_id => self.id)
-    end
+    # If there are any existing points for this trace then delete them
+    Tracepoint.where(:gpx_id => id).delete_all
 
     gpx.points do |point|
       if first
@@ -288,10 +304,10 @@ class Trace < ActiveRecord::Base
     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
@@ -304,11 +320,11 @@ 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.save!
+      save!
     end
 
     logger.info "done trace #{id}"
 
-    return gpx
+    gpx
   end
 end