X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/ef7f3d800cbdd49b692df10d312e5fd880e2e938..cf6a5c17ee15eeee6035b7c99996b411f08cc9c1:/app/models/relation.rb diff --git a/app/models/relation.rb b/app/models/relation.rb index c59ae47d1..cb9621822 100644 --- a/app/models/relation.rb +++ b/app/models/relation.rb @@ -1,5 +1,5 @@ class Relation < ActiveRecord::Base - require 'xml/libxml' + require "xml/libxml" include ConsistencyValidations include NotRedactable @@ -17,13 +17,15 @@ class Relation < ActiveRecord::Base has_many :containing_relation_members, :class_name => "RelationMember", :as => :member has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation - validates_presence_of :id, :on => :update - validates_presence_of :timestamp, :version, :changeset_id - validates_uniqueness_of :id - validates_inclusion_of :visible, :in => [true, false] - validates_numericality_of :id, :on => :update, :integer_only => true - validates_numericality_of :changeset_id, :version, :integer_only => true - validates_associated :changeset + validates :id, :uniqueness => true, :presence => { :on => :update }, + :numericality => { :on => :update, :integer_only => true } + validates :version, :presence => true, + :numericality => { :integer_only => true } + validates :changeset_id, :presence => true, + :numericality => { :integer_only => true } + validates :timestamp, :presence => true + validates :changeset, :associated => true + validates :visible, :inclusion => [true, false] scope :visible, -> { where(:visible => true) } scope :invisible, -> { where(:visible => false) } @@ -37,7 +39,7 @@ class Relation < ActiveRecord::Base p = XML::Parser.string(xml) doc = p.parse - doc.find('//osm/relation').each do |pt| + doc.find("//osm/relation").each do |pt| return Relation.from_xml_node(pt, create) end fail OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/relation element.") @@ -48,14 +50,14 @@ class Relation < ActiveRecord::Base def self.from_xml_node(pt, create = false) relation = Relation.new - fail OSM::APIBadXMLError.new("relation", pt, "Version is required when updating") unless create || !pt['version'].nil? - relation.version = pt['version'] - fail OSM::APIBadXMLError.new("relation", pt, "Changeset id is missing") if pt['changeset'].nil? - relation.changeset_id = pt['changeset'] + fail OSM::APIBadXMLError.new("relation", pt, "Version is required when updating") unless create || !pt["version"].nil? + relation.version = pt["version"] + fail OSM::APIBadXMLError.new("relation", pt, "Changeset id is missing") if pt["changeset"].nil? + relation.changeset_id = pt["changeset"] unless create - fail OSM::APIBadXMLError.new("relation", pt, "ID is required when updating") if pt['id'].nil? - relation.id = pt['id'].to_i + fail OSM::APIBadXMLError.new("relation", pt, "ID is required when updating") if pt["id"].nil? + relation.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 fail OSM::APIBadUserInput.new("ID of relation cannot be zero when updating.") if relation.id == 0 @@ -70,10 +72,10 @@ class Relation < ActiveRecord::Base relation.tags = {} # Add in any tags from the XML - pt.find('tag').each do |tag| - fail OSM::APIBadXMLError.new("relation", pt, "tag is missing key") if tag['k'].nil? - fail OSM::APIBadXMLError.new("relation", pt, "tag is missing value") if tag['v'].nil? - relation.add_tag_keyval(tag['k'], tag['v']) + pt.find("tag").each do |tag| + fail OSM::APIBadXMLError.new("relation", pt, "tag is missing key") if tag["k"].nil? + fail OSM::APIBadXMLError.new("relation", pt, "tag is missing value") if tag["v"].nil? + relation.add_tag_keyval(tag["k"], tag["v"]) end # need to initialise the relation members array explicitly, as if this @@ -82,16 +84,13 @@ class Relation < ActiveRecord::Base # empty, as intended. relation.members = [] - pt.find('member').each do |member| + pt.find("member").each do |member| # member_type = - logger.debug "each member" - fail OSM::APIBadXMLError.new("relation", pt, "The #{member['type']} is not allowed only, #{TYPES.inspect} allowed") unless TYPES.include? member['type'] - logger.debug "after raise" + fail OSM::APIBadXMLError.new("relation", pt, "The #{member['type']} is not allowed only, #{TYPES.inspect} allowed") unless TYPES.include? member["type"] # member_ref = member['ref'] # member_role - member['role'] ||= "" # Allow the upload to not include this, in which case we default to an empty string. - logger.debug member['role'] - relation.add_member(member['type'].classify, member['ref'], member['role']) + member["role"] ||= "" # Allow the upload to not include this, in which case we default to an empty string. + relation.add_member(member["type"].classify, member["ref"], member["role"]) end fail OSM::APIBadUserInput.new("Some bad xml in relation") if relation.nil? @@ -105,31 +104,29 @@ class Relation < ActiveRecord::Base end def to_xml_node(visible_members = nil, changeset_cache = {}, user_display_name_cache = {}) - el = XML::Node.new 'relation' - el['id'] = id.to_s + el = XML::Node.new "relation" + el["id"] = id.to_s add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache) relation_members.each do |member| p = 0 + if visible_members # if there is a list of visible members then use that to weed out deleted segments - if visible_members[member.member_type][member.member_id] - p = 1 - end + p = 1 if visible_members[member.member_type][member.member_id] else # otherwise, manually go to the db to check things - if member.member.visible? - p = 1 - end + p = 1 if member.member.visible? end - if p - member_el = XML::Node.new 'member' - member_el['type'] = member.member_type.downcase - member_el['ref'] = member.member_id.to_s - member_el['role'] = member.member_role - el << member_el - end + + next unless p + + member_el = XML::Node.new "member" + member_el["type"] = member.member_type.downcase + member_el["ref"] = member.member_id.to_s + member_el["role"] = member.member_role + el << member_el end add_tags_to_xml_node(el, relation_tags) @@ -137,7 +134,7 @@ class Relation < ActiveRecord::Base el end - # FIXME is this really needed? + # FIXME: is this really needed? def members @members ||= relation_members.map do |member| [member.member_type, member.member_id, member.member_role] @@ -189,7 +186,7 @@ class Relation < ActiveRecord::Base self.lock! check_consistency(self, new_relation, user) # This will check to see if this relation is used by another relation - rel = RelationMember.joins(:relation).where("visible = ? AND member_type = 'Relation' and member_id = ? ", true, id).first + rel = RelationMember.joins(:relation).find_by("visible = ? AND member_type = 'Relation' and member_id = ? ", true, id) fail OSM::APIPreconditionFailedError.new("The relation #{new_relation.id} is used in relation #{rel.relation.id}.") unless rel.nil? self.changeset_id = new_relation.changeset_id @@ -243,29 +240,27 @@ class Relation < ActiveRecord::Base # find the hash for the element type or die hash = elements[m[0].downcase.to_sym] return false unless hash + # unless its in the cache already - unless hash.key? m[1] - # use reflection to look up the appropriate class - model = Kernel.const_get(m[0].capitalize) - # get the element with that ID - element = model.where(:id => m[1]).first - - # and check that it is OK to use. - unless element && element.visible? && element.preconditions_ok? - fail OSM::APIPreconditionFailedError.new("Relation with id #{id} cannot be saved due to #{m[0]} with id #{m[1]}") - end - hash[m[1]] = true + next if hash.key? m[1] + + # use reflection to look up the appropriate class + model = Kernel.const_get(m[0].capitalize) + # get the element with that ID. and, if found, lock the element to + # ensure it can't be deleted until after the current transaction + # commits. + element = model.lock("for share").find_by(:id => m[1]) + + # and check that it is OK to use. + unless element && element.visible? && element.preconditions_ok? + fail OSM::APIPreconditionFailedError.new("Relation with id #{id} cannot be saved due to #{m[0]} with id #{m[1]}") end + hash[m[1]] = true end true end - # Temporary method to match interface to nodes - def tags_as_hash - tags - end - ## # if any members are referenced by placeholder IDs (i.e: negative) then # this calling this method will fix them using the map from placeholders @@ -375,7 +370,7 @@ class Relation < ActiveRecord::Base # materially change the rest of the relation. any_relations = changed_members.collect { |_id, type| type == "relation" } - .inject(false) { |b, s| b || s } + .inject(false) { |a, e| a || e } update_members = if tags_changed || any_relations # add all non-relation bounding boxes to the changeset @@ -386,9 +381,7 @@ class Relation < ActiveRecord::Base changed_members end update_members.each do |type, id, _role| - if type != "Relation" - update_changeset_element(type, id) - end + update_changeset_element(type, id) if type != "Relation" end # tell the changeset we updated one element only