X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/fc25c3d412829774abf0454e4dcc92e41f47454c..baf10cd39289cd7e94a819305e46f43e85a136c6:/app/models/changeset.rb?ds=inline diff --git a/app/models/changeset.rb b/app/models/changeset.rb index d58d91bb3..2001c70be 100644 --- a/app/models/changeset.rb +++ b/app/models/changeset.rb @@ -1,7 +1,7 @@ class Changeset < ActiveRecord::Base require 'xml/libxml' - belongs_to :user + belongs_to :user, :counter_cache => true has_many :changeset_tags @@ -12,6 +12,9 @@ class Changeset < ActiveRecord::Base has_many :old_ways has_many :old_relations + 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_presence_of :id, :on => :update validates_presence_of :user_id, :created_at, :closed_at, :num_changes validates_uniqueness_of :id @@ -43,7 +46,7 @@ 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 @@ -52,21 +55,19 @@ class Changeset < ActiveRecord::Base end 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 + fail 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 @@ -78,33 +79,23 @@ class Changeset < ActiveRecord::Base 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? + fail OSM::APIBadXMLError.new("changeset", pt, "tag is missing key") if tag['k'].nil? + fail 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 ## @@ -112,26 +103,12 @@ 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 ## @@ -143,29 +120,27 @@ class Changeset < ActiveRecord::Base end def tags_as_hash - return tags + 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 + fail OSM::APIDuplicateTagsError.new("changeset", id, k) if @tags.include? k @tags[k] = v end @@ -177,11 +152,11 @@ class Changeset < ActiveRecord::Base self.save! tags = self.tags - ChangesetTag.delete_all(:changeset_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 = self.id + tag.changeset_id = id tag.k = k tag.v = v tag.save! @@ -203,50 +178,66 @@ class Changeset < ActiveRecord::Base 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) + def to_xml_node(user_display_name_cache = nil, include_discussion = false) el1 = XML::Node.new 'changeset' - el1['id'] = self.id.to_s + 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| + 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['created_at'] = created_at.xmlschema + el1['closed_at'] = 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? + if bbox.complete? + bbox.to_unscaled.add_bounds_to(el1, '_') + end + + 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 ## @@ -255,13 +246,13 @@ 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 + unless user.id == user_id + fail OSM::APIUserChangesetMismatchError.new end # can't change a closed changeset unless is_open? - raise OSM::APIChangesetAlreadyClosedError.new(self) + fail OSM::APIChangesetAlreadyClosedError.new(self) end # copy the other's tags