end
##
- # Return XML giving the basic info about the changeset. Does not
+ # Return XML giving the basic info about the changeset. Does not
# return anything about the nodes, ways and relations in the changeset.
def read
changeset = Changeset.find(params[:id])
render :text => changeset.to_xml.to_s, :content_type => "text/xml"
end
-
+
##
# marks a changeset as closed. this may be called multiple times
# on the same changeset, so is idempotent.
- def close
+ def close
assert_method :put
-
- changeset = Changeset.find(params[:id])
+
+ changeset = Changeset.find(params[:id])
check_changeset_consistency(changeset, @user)
# to close the changeset, we'll just set its closed_at time to
- # now. this might not be enough if there are concurrency issues,
+ # now. this might not be enough if there are concurrency issues,
# but we'll have to wait and see.
changeset.set_closed_time_now
cs = Changeset.find(params[:id])
check_changeset_consistency(cs, @user)
-
+
# keep an array of lons and lats
lon = Array.new
lat = Array.new
-
+
# the request is in pseudo-osm format... this is kind-of an
# abuse, maybe should change to some other format?
doc = XML::Parser.string(request.raw_post).parse
lon << n['lon'].to_f * GeoRecord::SCALE
lat << n['lat'].to_f * GeoRecord::SCALE
end
-
+
# add the existing bounding box to the lon-lat array
lon << cs.min_lon unless cs.min_lon.nil?
lat << cs.min_lat unless cs.min_lat.nil?
lon << cs.max_lon unless cs.max_lon.nil?
lat << cs.max_lat unless cs.max_lat.nil?
-
+
# collapse the arrays to minimum and maximum
- cs.min_lon, cs.min_lat, cs.max_lon, cs.max_lat =
+ cs.min_lon, cs.min_lat, cs.max_lon, cs.max_lat =
lon.min, lat.min, lon.max, lat.max
-
+
# save the larger bounding box and return the changeset, which
# will include the bigger bounding box.
cs.save!
# Furthermore, each element in the diff can only reference the current
# changeset.
#
- # Returns: a diffResult document, as described in
+ # Returns: a diffResult document, as described in
# http://wiki.openstreetmap.org/wiki/OSM_Protocol_Version_0.6
def upload
# only allow POST requests, as the upload method is most definitely
changeset = Changeset.find(params[:id])
check_changeset_consistency(changeset, @user)
-
+
diff_reader = DiffReader.new(request.raw_post, changeset)
Changeset.transaction do
result = diff_reader.commit
# download the changeset as an osmChange document.
#
# to make it easier to revert diffs it would be better if the osmChange
- # format were reversible, i.e: contained both old and new versions of
+ # format were reversible, i.e: contained both old and new versions of
# modified elements. but it doesn't at the moment...
#
# this method cannot order the database changes fully (i.e: timestamp and
# version number may be too coarse) so the resulting diff may not apply
- # to a different database. however since changesets are not atomic this
+ # to a different database. however since changesets are not atomic this
# behaviour cannot be guaranteed anyway and is the result of a design
# choice.
def download
changeset = Changeset.find(params[:id])
-
+
# get all the elements in the changeset which haven't been redacted
# and stick them in a big array.
- elements = [changeset.old_nodes.unredacted,
- changeset.old_ways.unredacted,
+ elements = [changeset.old_nodes.unredacted,
+ changeset.old_ways.unredacted,
changeset.old_relations.unredacted].flatten
-
- # sort the elements by timestamp and version number, as this is the
- # almost sensible ordering available. this would be much nicer if
- # global (SVN-style) versioning were used - then that would be
+
+ # sort the elements by timestamp and version number, as this is the
+ # almost sensible ordering available. this would be much nicer if
+ # global (SVN-style) versioning were used - then that would be
# unambiguous.
- elements.sort! do |a, b|
+ elements.sort! do |a, b|
if (a.timestamp == b.timestamp)
a.version <=> b.version
else
- a.timestamp <=> b.timestamp
+ a.timestamp <=> b.timestamp
end
end
-
+
+ # create changeset and user caches
+ changeset_cache = {}
+ user_display_name_cache = {}
+
# create an osmChange document for the output
result = OSM::API.new.get_xml_doc
result.root.name = "osmChange"
# generate an output element for each operation. note: we avoid looking
- # at the history because it is simpler - but it would be more correct to
+ # at the history because it is simpler - but it would be more correct to
# check these assertions.
elements.each do |elt|
result.root <<
- if (elt.version == 1)
+ if (elt.version == 1)
# first version, so it must be newly-created.
created = XML::Node.new "create"
- created << elt.to_xml_node
+ created << elt.to_xml_node(changeset_cache, user_display_name_cache)
else
unless elt.visible
# if the element isn't visible then it must have been deleted
deleted = XML::Node.new "delete"
- deleted << elt.to_xml_node
+ deleted << elt.to_xml_node(changeset_cache, user_display_name_cache)
else
# must be a modify
modified = XML::Node.new "modify"
- modified << elt.to_xml_node
+ modified << elt.to_xml_node(changeset_cache, user_display_name_cache)
end
end
end
render :text => results.to_s, :content_type => "text/xml"
end
-
+
##
# updates a changeset's tags. none of the changeset's attributes are
# user-modifiable, so they will be ignored.
changeset.update_from(new_changeset, @user)
render :text => changeset.to_xml, :mime_type => "text/xml"
else
-
+
render :nothing => true, :status => :bad_request
end
end
if params[:display_name]
user = User.find_by_display_name(params[:display_name])
-
+
if user and user.active?
if user.data_public? or user == @user
changesets = changesets.where(:user_id => user.id)
return
end
end
-
+
if params[:friends]
if @user
changesets = changesets.where(:user_id => @user.friend_users.public)
changesets = conditions_bbox(changesets, bbox)
bbox_link = render_to_string :partial => "bbox", :object => bbox
end
-
+
if user
user_link = render_to_string :partial => "user", :object => user
end
-
+
if params[:friends] and @user
@title = t 'changeset.list.title_friend'
@heading = t 'changeset.list.heading_friend'
private
#------------------------------------------------------------
# utility functions below.
- #------------------------------------------------------------
+ #------------------------------------------------------------
##
# if a bounding box was specified do some sanity checks.
# make sure we found a user
raise OSM::APINotFoundError.new if u.nil?
- # should be able to get changesets of public users only, or
+ # should be able to get changesets of public users only, or
# our own changesets regardless of public-ness.
unless u.data_public?
# get optional user auth stuff so that users can see their own
# changesets if they're non-public
setup_user_auth
-
+
raise OSM::APINotFoundError if @user.nil? or @user.id != u.id
end
return changesets.where(:user_id => u.id)
##
# restrict changes to those closed during a particular time period
- def conditions_time(changesets, time)
+ def conditions_time(changesets, time)
unless time.nil?
- # if there is a range, i.e: comma separated, then the first is
+ # if there is a range, i.e: comma separated, then the first is
# low, second is high - same as with bounding boxes.
if time.count(',') == 1
# check that we actually have 2 elements in the array
times = time.split(/,/)
- raise OSM::APIBadUserInput.new("bad time range") if times.size != 2
+ raise OSM::APIBadUserInput.new("bad time range") if times.size != 2
from, to = times.collect { |t| DateTime.parse(t) }
return changesets.where("closed_at >= ? and created_at <= ?", from, to)
if open.nil?
return changesets
else
- return changesets.where("closed_at >= ? and num_changes <= ?",
+ return changesets.where("closed_at >= ? and num_changes <= ?",
Time.now.getutc, Changeset::MAX_ELEMENTS)
end
end
-
+
##
# query changesets which are closed
# ('closed at' time has passed or changes limit is hit)
if closed.nil?
return changesets
else
- return changesets.where("closed_at < ? or num_changes > ?",
+ return changesets.where("closed_at < ? or num_changes > ?",
Time.now.getutc, Changeset::MAX_ELEMENTS)
end
end
def conditions_nonempty(changesets)
return changesets.where("num_changes > 0")
end
-
+
end
projects / rails.git / blobdiff