class RelationController < ApplicationController
- require 'xml/libxml'
+ require "xml/libxml"
- session :off
- before_filter :authorize, :only => [:create, :update, :delete]
- before_filter :check_write_availability, :only => [:create, :update, :delete]
- before_filter :check_read_availability, :except => [:create, :update, :delete]
- after_filter :compress_output
+ skip_before_action :verify_authenticity_token
+ before_action :authorize, :only => [:create, :update, :delete]
+ before_action :require_allow_write_api, :only => [:create, :update, :delete]
+ before_action :require_public_data, :only => [:create, :update, :delete]
+ before_action :check_api_writable, :only => [:create, :update, :delete]
+ before_action :check_api_readable, :except => [:create, :update, :delete]
+ around_action :api_call_handle_error, :api_call_timeout
def create
- begin
- if request.put?
- relation = Relation.from_xml(request.raw_post, true)
-
- # We assume that an exception has been thrown if there was an error
- # generating the relation
- #if relation
- relation.create_with_history @user
- render :text => relation.id.to_s, :content_type => "text/plain"
- #else
- # render :text => "Couldn't get turn the input into a relation.", :status => :bad_request
- #end
- else
- render :nothing => true, :status => :method_not_allowed
- end
- rescue OSM::APIError => ex
- render ex.render_opts
- end
+ assert_method :put
+
+ relation = Relation.from_xml(request.raw_post, true)
+
+ # Assume that Relation.from_xml has thrown an exception if there is an error parsing the xml
+ relation.create_with_history current_user
+ render :plain => relation.id.to_s
end
def read
- begin
- relation = Relation.find(params[:id])
- response.headers['Last-Modified'] = relation.timestamp.rfc822
- if relation.visible
- render :text => relation.to_xml.to_s, :content_type => "text/xml"
- else
- render :text => "", :status => :gone
- end
- rescue ActiveRecord::RecordNotFound
- render :nothing => true, :status => :not_found
- rescue
- render :nothing => true, :status => :internal_server_error
+ relation = Relation.find(params[:id])
+ response.last_modified = relation.timestamp
+ if relation.visible
+ render :xml => relation.to_xml.to_s
+ else
+ head :gone
end
end
def update
logger.debug request.raw_post
- begin
- relation = Relation.find(params[:id])
- new_relation = Relation.from_xml(request.raw_post)
-
- if new_relation and new_relation.id == relation.id
- relation.update_from new_relation, @user
- render :text => relation.version.to_s, :content_type => "text/plain"
- else
- render :nothing => true, :status => :bad_request
- end
- rescue ActiveRecord::RecordNotFound
- render :nothing => true, :status => :not_found
- rescue OSM::APIError => ex
- render ex.render_opts
- end
+
+ relation = Relation.find(params[:id])
+ new_relation = Relation.from_xml(request.raw_post)
+
+ raise OSM::APIBadUserInput, "The id in the url (#{relation.id}) is not the same as provided in the xml (#{new_relation.id})" unless new_relation && new_relation.id == relation.id
+
+ relation.update_from new_relation, current_user
+ render :plain => relation.version.to_s
end
def delete
- begin
- relation = Relation.find(params[:id])
- new_relation = Relation.from_xml(request.raw_post)
- if new_relation and new_relation.id == relation.id
- relation.delete_with_history!(new_relation, @user)
- render :text => relation.version.to_s, :content_type => "text/plain"
- else
- render :nothing => true, :status => :bad_request
- end
- rescue OSM::APIError => ex
- render ex.render_opts
- rescue ActiveRecord::RecordNotFound
- render :nothing => true, :status => :not_found
+ relation = Relation.find(params[:id])
+ new_relation = Relation.from_xml(request.raw_post)
+ if new_relation && new_relation.id == relation.id
+ relation.delete_with_history!(new_relation, current_user)
+ render :plain => relation.version.to_s
+ else
+ head :bad_request
end
end
# -----------------------------------------------------------------
# full
- #
+ #
# input parameters: id
#
# returns XML representation of one relation object plus all its
# members, plus all nodes part of member ways
# -----------------------------------------------------------------
def full
- begin
- relation = Relation.find(params[:id])
-
- if relation.visible
-
- # first collect nodes, ways, and relations referenced by this relation.
-
- ways = Way.find_by_sql("select w.* from current_ways w,current_relation_members rm where "+
- "rm.member_type='Way' and rm.member_id=w.id and rm.id=#{relation.id}");
- nodes = Node.find_by_sql("select n.* from current_nodes n,current_relation_members rm where "+
- "rm.member_type='Node' and rm.member_id=n.id and rm.id=#{relation.id}");
- # note query is built to exclude self just in case.
- relations = Relation.find_by_sql("select r.* from current_relations r,current_relation_members rm where "+
- "rm.member_type='Relation' and rm.member_id=r.id and rm.id=#{relation.id} and r.id<>rm.id");
-
- # now additionally collect nodes referenced by ways. Note how we recursively
- # evaluate ways but NOT relations.
-
- node_ids = nodes.collect {|node| node.id }
- way_node_ids = ways.collect { |way|
- way.way_nodes.collect { |way_node| way_node.node_id }
- }
- way_node_ids.flatten!
- way_node_ids.uniq
- way_node_ids -= node_ids
- nodes += Node.find(way_node_ids)
-
- # create XML.
- doc = OSM::API.new.get_xml_doc
- visible_nodes = {}
- user_display_name_cache = {}
-
- nodes.each do |node|
- if node.visible? # should be unnecessary if data is consistent.
- doc.root << node.to_xml_node(user_display_name_cache)
- visible_nodes[node.id] = node
- end
- end
- ways.each do |way|
- if way.visible? # should be unnecessary if data is consistent.
- doc.root << way.to_xml_node(visible_nodes, user_display_name_cache)
- end
- end
- relations.each do |rel|
- if rel.visible? # should be unnecessary if data is consistent.
- doc.root << rel.to_xml_node(user_display_name_cache)
- end
- end
- # finally add self and output
- doc.root << relation.to_xml_node(user_display_name_cache)
- render :text => doc.to_s, :content_type => "text/xml"
-
- else
- render :nothing => true, :status => :gone
+ relation = Relation.find(params[:id])
+
+ if relation.visible
+
+ # first find the ids of nodes, ways and relations referenced by this
+ # relation - note that we exclude this relation just in case.
+
+ node_ids = relation.members.select { |m| m[0] == "Node" }.map { |m| m[1] }
+ way_ids = relation.members.select { |m| m[0] == "Way" }.map { |m| m[1] }
+ relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.map { |m| m[1] }
+
+ # next load the relations and the ways.
+
+ relations = Relation.where(:id => relation_ids).includes(:relation_tags)
+ ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags)
+
+ # now additionally collect nodes referenced by ways. Note how we
+ # recursively evaluate ways but NOT relations.
+
+ way_node_ids = ways.collect do |way|
+ way.way_nodes.collect(&:node_id)
end
+ node_ids += way_node_ids.flatten
+ nodes = Node.where(:id => node_ids.uniq).includes(:node_tags)
- rescue ActiveRecord::RecordNotFound
- render :nothing => true, :status => :not_found
+ # create XML.
+ doc = OSM::API.new.get_xml_doc
+ visible_nodes = {}
+ changeset_cache = {}
+ user_display_name_cache = {}
+
+ nodes.each do |node|
+ next unless node.visible? # should be unnecessary if data is consistent.
+
+ doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
+ visible_nodes[node.id] = node
+ end
+
+ ways.each do |way|
+ next unless way.visible? # should be unnecessary if data is consistent.
+
+ doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
+ end
+
+ relations.each do |rel|
+ next unless rel.visible? # should be unnecessary if data is consistent.
+
+ doc.root << rel.to_xml_node(changeset_cache, user_display_name_cache)
+ end
- rescue
- render :nothing => true, :status => :internal_server_error
+ # finally add self and output
+ doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
+ render :xml => doc.to_s
+
+ else
+ head :gone
end
end
def relations
- ids = params['relations'].split(',').collect { |w| w.to_i }
+ raise OSM::APIBadUserInput, "The parameter relations is required, and must be of the form relations=id[,id[,id...]]" unless params["relations"]
- if ids.length > 0
- doc = OSM::API.new.get_xml_doc
+ ids = params["relations"].split(",").collect(&:to_i)
- Relation.find(ids).each do |relation|
- doc.root << relation.to_xml_node
- end
+ raise OSM::APIBadUserInput, "No relations were given to search for" if ids.empty?
- render :text => doc.to_s, :content_type => "text/xml"
- else
- render :text => "You need to supply a comma separated list of ids.", :status => :bad_request
+ doc = OSM::API.new.get_xml_doc
+
+ Relation.find(ids).each do |relation|
+ doc.root << relation.to_xml_node
end
- rescue ActiveRecord::RecordNotFound
- render :text => "Could not find one of the relations", :status => :not_found
+
+ render :xml => doc.to_s
end
def relations_for_way
relations_for_object("Way")
end
+
def relations_for_node
relations_for_object("Node")
end
+
def relations_for_relation
relations_for_object("Relation")
end
def relations_for_object(objtype)
- relationids = RelationMember.find(:all, :conditions => ['member_type=? and member_id=?', objtype, params[:id]]).collect { |ws| ws.id[0] }.uniq
+ relationids = RelationMember.where(:member_type => objtype, :member_id => params[:id]).collect(&:relation_id).uniq
doc = OSM::API.new.get_xml_doc
doc.root << relation.to_xml_node if relation.visible
end
- render :text => doc.to_s, :content_type => "text/xml"
+ render :xml => doc.to_s
end
end
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