X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/72e33046c80bddc0ca9b1336786dcb4b349137f7..945ff7911ca51dc250ffaba71f62821b5c0c0a95:/app/models/changeset.rb diff --git a/app/models/changeset.rb b/app/models/changeset.rb index 8f9a1e69b..6909ba948 100644 --- a/app/models/changeset.rb +++ b/app/models/changeset.rb @@ -1,9 +1,9 @@ class Changeset < ActiveRecord::Base - require 'xml/libxml' + require "xml/libxml" - belongs_to :user + belongs_to :user, :counter_cache => true - has_many :changeset_tags, :foreign_key => 'id' + has_many :changeset_tags has_many :nodes has_many :ways @@ -12,13 +12,21 @@ class Changeset < ActiveRecord::Base has_many :old_ways has_many :old_relations - validates_presence_of :id, :on => :update - validates_presence_of :user_id, :created_at, :closed_at, :num_changes - validates_uniqueness_of :id - validates_numericality_of :id, :on => :update, :integer_only => true - validates_numericality_of :min_lat, :max_lat, :min_lon, :max_lat, :allow_nil => true, :integer_only => true - validates_numericality_of :user_id, :integer_only => true - validates_numericality_of :num_changes, :integer_only => true, :greater_than_or_equal_to => 0 + has_many :comments, -> { where(:visible => true).order(:created_at) }, :class_name => "ChangesetComment" + has_and_belongs_to_many :subscribers, :class_name => "User", :join_table => "changesets_subscribers", :association_foreign_key => "subscriber_id" + + validates :id, :uniqueness => true, :presence => { :on => :update }, + :numericality => { :on => :update, :integer_only => true } + validates :user_id, :presence => true, + :numericality => { :integer_only => true } + validates :num_changes, :presence => true, + :numericality => { :integer_only => true, + :greater_than_or_equal_to => 0 } + validates :created_at, :closed_at, :presence => true + validates :min_lat, :max_lat, :min_lon, :max_lat, :allow_nil => true, + :numericality => { :integer_only => true } + + before_save :update_closed_at # over-expansion factor to use when updating the bounding box EXPAND = 0.1 @@ -41,30 +49,26 @@ class Changeset < ActiveRecord::Base # note that this may not be a hard limit - due to timing changes and # concurrency it is possible that some changesets may be slightly # longer than strictly allowed or have slightly more changes in them. - return ((closed_at > Time.now.getutc) and (num_changes <= MAX_ELEMENTS)) + ((closed_at > Time.now.getutc) && (num_changes <= MAX_ELEMENTS)) end def set_closed_time_now - if is_open? - self.closed_at = Time.now.getutc - end + self.closed_at = Time.now.getutc if is_open? end - def self.from_xml(xml, create=false) - begin - p = XML::Parser.string(xml) - doc = p.parse + def self.from_xml(xml, create = false) + p = XML::Parser.string(xml, :options => XML::Parser::Options::NOERROR) + doc = p.parse - doc.find('//osm/changeset').each do |pt| - return Changeset.from_xml_node(pt, create) - end - raise OSM::APIBadXMLError.new("changeset", xml, "XML doesn't contain an osm/changeset element.") - rescue LibXML::XML::Error, ArgumentError => ex - raise OSM::APIBadXMLError.new("changeset", xml, ex.message) + doc.find("//osm/changeset").each do |pt| + return Changeset.from_xml_node(pt, create) end + raise OSM::APIBadXMLError.new("changeset", xml, "XML doesn't contain an osm/changeset element.") + rescue LibXML::XML::Error, ArgumentError => ex + raise OSM::APIBadXMLError.new("changeset", xml, ex.message) end - def self.from_xml_node(pt, create=false) + def self.from_xml_node(pt, create = false) cs = Changeset.new if create cs.created_at = Time.now.getutc @@ -75,34 +79,24 @@ class Changeset < ActiveRecord::Base cs.num_changes = 0 end - pt.find('tag').each do |tag| - raise OSM::APIBadXMLError.new("changeset", pt, "tag is missing key") if tag['k'].nil? - raise OSM::APIBadXMLError.new("changeset", pt, "tag is missing value") if tag['v'].nil? - cs.add_tag_keyval(tag['k'], tag['v']) + pt.find("tag").each do |tag| + raise OSM::APIBadXMLError.new("changeset", pt, "tag is missing key") if tag["k"].nil? + raise OSM::APIBadXMLError.new("changeset", pt, "tag is missing value") if tag["v"].nil? + cs.add_tag_keyval(tag["k"], tag["v"]) end - return cs + cs end ## # returns the bounding box of the changeset. it is possible that some # or all of the values will be nil, indicating that they are undefined. def bbox - @bbox ||= [ min_lon, min_lat, max_lon, max_lat ] + @bbox ||= BoundingBox.new(min_lon, min_lat, max_lon, max_lat) end def has_valid_bbox? - not bbox.include? nil - end - - ## - # returns area of the changset bbox as a rough comparitive quantity for use of changset displays - def area - if has_valid_bbox? - (max_lon - min_lon) * (max_lat - min_lat) - else - 0 - end + bbox.complete? end ## @@ -110,26 +104,12 @@ class Changeset < ActiveRecord::Base # expand a little bit more in the direction of the expansion, so that # further expansions may be unnecessary. this is an optimisation # suggested on the wiki page by kleptog. - def update_bbox!(array) - # ensure that bbox is cached and has no nils in it. if there are any - # nils, just use the bounding box update to write over them. - @bbox = bbox.zip(array).collect { |a, b| a.nil? ? b : a } - - # only try to update the bbox if there is a value for every coordinate - # which there will be from the previous line as long as both array and - # bbox are all non-nil. - if has_valid_bbox? and array.all? - # FIXME - this looks nasty and violates DRY... is there any prettier - # way to do this? - @bbox[0] = [-180 * GeoRecord::SCALE, array[0] + EXPAND * (@bbox[0] - @bbox[2])].max if array[0] < @bbox[0] - @bbox[1] = [ -90 * GeoRecord::SCALE, array[1] + EXPAND * (@bbox[1] - @bbox[3])].max if array[1] < @bbox[1] - @bbox[2] = [ 180 * GeoRecord::SCALE, array[2] + EXPAND * (@bbox[2] - @bbox[0])].min if array[2] > @bbox[2] - @bbox[3] = [ 90 * GeoRecord::SCALE, array[3] + EXPAND * (@bbox[3] - @bbox[1])].min if array[3] > @bbox[3] - - # update active record. rails 2.1's dirty handling should take care of - # whether this object needs saving or not. - self.min_lon, self.min_lat, self.max_lon, self.max_lat = @bbox - end + def update_bbox!(bbox_update) + bbox.expand!(bbox_update, EXPAND) + + # update active record. rails 2.1's dirty handling should take care of + # whether this object needs saving or not. + self.min_lon, self.min_lat, self.max_lon, self.max_lat = @bbox.to_a if bbox.complete? end ## @@ -140,30 +120,24 @@ class Changeset < ActiveRecord::Base self.num_changes += elements end - def tags_as_hash - return tags - end - def tags unless @tags @tags = {} - self.changeset_tags.each do |tag| + changeset_tags.each do |tag| @tags[tag.k] = tag.v end end @tags end - def tags=(t) - @tags = t - end + attr_writer :tags def add_tag_keyval(k, v) - @tags = Hash.new unless @tags + @tags = {} unless @tags # duplicate tags are now forbidden, so we can't allow values # in the hash to be overwritten. - raise OSM::APIDuplicateTagsError.new("changeset", self.id, k) if @tags.include? k + raise OSM::APIDuplicateTagsError.new("changeset", id, k) if @tags.include? k @tags[k] = v end @@ -172,16 +146,16 @@ class Changeset < ActiveRecord::Base # do the changeset update and the changeset tags update in the # same transaction to ensure consistency. Changeset.transaction do - self.save! + save! tags = self.tags - ChangesetTag.delete_all(['id = ?', self.id]) + ChangesetTag.delete_all(:changeset_id => id) - tags.each do |k,v| + tags.each do |k, v| tag = ChangesetTag.new + tag.changeset_id = id tag.k = k tag.v = v - tag.id = self.id tag.save! end end @@ -191,60 +165,74 @@ class Changeset < ActiveRecord::Base # set the auto-close time to be one hour in the future unless # that would make it more than 24h long, in which case clip to # 24h, as this has been decided is a reasonable time limit. - def before_save - if self.is_open? - if (closed_at - created_at) > (MAX_TIME_OPEN - IDLE_TIMEOUT) - self.closed_at = created_at + MAX_TIME_OPEN - else - self.closed_at = Time.now.getutc + IDLE_TIMEOUT - end + def update_closed_at + if is_open? + self.closed_at = if (closed_at - created_at) > (MAX_TIME_OPEN - IDLE_TIMEOUT) + created_at + MAX_TIME_OPEN + else + Time.now.getutc + IDLE_TIMEOUT + end end end - def to_xml + def to_xml(include_discussion = false) doc = OSM::API.new.get_xml_doc - doc.root << to_xml_node() - return doc + doc.root << to_xml_node(nil, include_discussion) + doc end - def to_xml_node(user_display_name_cache = nil) - el1 = XML::Node.new 'changeset' - el1['id'] = self.id.to_s + def to_xml_node(user_display_name_cache = nil, include_discussion = false) + el1 = XML::Node.new "changeset" + el1["id"] = id.to_s user_display_name_cache = {} if user_display_name_cache.nil? - if user_display_name_cache and user_display_name_cache.key?(self.user_id) + if user_display_name_cache && user_display_name_cache.key?(user_id) # use the cache if available - elsif self.user.data_public? - user_display_name_cache[self.user_id] = self.user.display_name + elsif user.data_public? + user_display_name_cache[user_id] = user.display_name else - user_display_name_cache[self.user_id] = nil + user_display_name_cache[user_id] = nil end - el1['user'] = user_display_name_cache[self.user_id] unless user_display_name_cache[self.user_id].nil? - el1['uid'] = self.user_id.to_s if self.user.data_public? + el1["user"] = user_display_name_cache[user_id] unless user_display_name_cache[user_id].nil? + el1["uid"] = user_id.to_s if user.data_public? - self.tags.each do |k,v| - el2 = XML::Node.new('tag') - el2['k'] = k.to_s - el2['v'] = v.to_s + tags.each do |k, v| + el2 = XML::Node.new("tag") + el2["k"] = k.to_s + el2["v"] = v.to_s el1 << el2 end - el1['created_at'] = self.created_at.xmlschema - el1['closed_at'] = self.closed_at.xmlschema unless is_open? - el1['open'] = is_open?.to_s - - el1['min_lon'] = (bbox[0].to_f / GeoRecord::SCALE).to_s unless bbox[0].nil? - el1['min_lat'] = (bbox[1].to_f / GeoRecord::SCALE).to_s unless bbox[1].nil? - el1['max_lon'] = (bbox[2].to_f / GeoRecord::SCALE).to_s unless bbox[2].nil? - el1['max_lat'] = (bbox[3].to_f / GeoRecord::SCALE).to_s unless bbox[3].nil? + el1["created_at"] = created_at.xmlschema + el1["closed_at"] = closed_at.xmlschema unless is_open? + el1["open"] = is_open?.to_s + + bbox.to_unscaled.add_bounds_to(el1, "_") if bbox.complete? + + el1["comments_count"] = comments.count.to_s + + if include_discussion + el2 = XML::Node.new("discussion") + comments.includes(:author).each do |comment| + el3 = XML::Node.new("comment") + el3["date"] = comment.created_at.xmlschema + el3["uid"] = comment.author.id.to_s if comment.author.data_public? + el3["user"] = comment.author.display_name.to_s if comment.author.data_public? + el4 = XML::Node.new("text") + el4.content = comment.body.to_s + el3 << el4 + el2 << el3 + end + el1 << el2 + end # NOTE: changesets don't include the XML of the changes within them, # they are just structures for tagging. to get the osmChange of a # changeset, see the download method of the controller. - return el1 + el1 end ## @@ -253,14 +241,10 @@ class Changeset < ActiveRecord::Base # bounding box, only the tags of the changeset. def update_from(other, user) # ensure that only the user who opened the changeset may modify it. - unless user.id == self.user_id - raise OSM::APIUserChangesetMismatchError.new - end + raise OSM::APIUserChangesetMismatchError.new unless user.id == user_id # can't change a closed changeset - unless is_open? - raise OSM::APIChangesetAlreadyClosedError.new(self) - end + raise OSM::APIChangesetAlreadyClosedError.new(self) unless is_open? # copy the other's tags self.tags = other.tags