+
+
+
+ ##
+ # list edits (open changesets) in reverse chronological order
+ def list
+ conditions = conditions_nonempty
+
+ if params[:display_name]
+ user = User.find_by_display_name(params[:display_name], :conditions => { :status => ["active", "confirmed"] })
+
+ if user
+ if user.data_public? or user == @user
+ conditions = cond_merge conditions, ['user_id = ?', user.id]
+ else
+ conditions = cond_merge conditions, ['false']
+ end
+ elsif request.format == :html
+ @title = t 'user.no_such_user.title'
+ @not_found_user = params[:display_name]
+ render :template => 'user/no_such_user', :status => :not_found
+ end
+ end
+
+ if params[:bbox]
+ bbox = params[:bbox]
+ elsif params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat]
+ bbox = params[:minlon] + ',' + params[:minlat] + ',' + params[:maxlon] + ',' + params[:maxlat]
+ end
+
+ if bbox
+ conditions = cond_merge conditions, conditions_bbox(bbox)
+ bbox = BoundingBox.from_s(bbox)
+ bbox_link = render_to_string :partial => "bbox", :object => bbox
+ end
+
+ if user
+ user_link = render_to_string :partial => "user", :object => user
+ end
+
+ if user and bbox
+ @title = t 'changeset.list.title_user_bbox', :user => user.display_name, :bbox => bbox.to_s
+ @heading = t 'changeset.list.heading_user_bbox', :user => user.display_name, :bbox => bbox.to_s
+ @description = t 'changeset.list.description_user_bbox', :user => user_link, :bbox => bbox_link
+ elsif user
+ @title = t 'changeset.list.title_user', :user => user.display_name
+ @heading = t 'changeset.list.heading_user', :user => user.display_name
+ @description = t 'changeset.list.description_user', :user => user_link
+ elsif bbox
+ @title = t 'changeset.list.title_bbox', :bbox => bbox.to_s
+ @heading = t 'changeset.list.heading_bbox', :bbox => bbox.to_s
+ @description = t 'changeset.list.description_bbox', :bbox => bbox_link
+ else
+ @title = t 'changeset.list.title'
+ @heading = t 'changeset.list.heading'
+ @description = t 'changeset.list.description'
+ end
+
+ @page = (params[:page] || 1).to_i
+ @page_size = 20
+
+ @edits = Changeset.find(:all,
+ :include => [:user, :changeset_tags],
+ :conditions => conditions,
+ :order => "changesets.created_at DESC",
+ :offset => (@page - 1) * @page_size,
+ :limit => @page_size)
+ end
+
+private
+ #------------------------------------------------------------
+ # utility functions below.
+ #------------------------------------------------------------
+
+ ##
+ # merge two conditions
+ def cond_merge(a, b)
+ if a and b
+ a_str = a.shift
+ b_str = b.shift
+ return [ a_str + " AND " + b_str ] + a + b
+ elsif a
+ return a
+ else b
+ return b
+ end
+ end
+
+ ##
+ # if a bounding box was specified then parse it and do some sanity
+ # checks. this is mostly the same as the map call, but without the
+ # area restriction.
+ def conditions_bbox(bbox)
+ unless bbox.nil?
+ raise OSM::APIBadUserInput.new("Bounding box should be min_lon,min_lat,max_lon,max_lat") unless bbox.count(',') == 3
+ bbox = sanitise_boundaries(bbox.split(/,/))
+ raise OSM::APIBadUserInput.new("Minimum longitude should be less than maximum.") unless bbox[0] <= bbox[2]
+ raise OSM::APIBadUserInput.new("Minimum latitude should be less than maximum.") unless bbox[1] <= bbox[3]
+ return ['min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?',
+ bbox[2] * GeoRecord::SCALE, bbox[0] * GeoRecord::SCALE, bbox[3]* GeoRecord::SCALE, bbox[1] * GeoRecord::SCALE]
+ else
+ return nil
+ end
+ end
+
+ ##
+ # restrict changesets to those by a particular user
+ def conditions_user(user, name)
+ unless user.nil? and name.nil?
+ # shouldn't provide both name and UID
+ raise OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user and name
+
+ # use either the name or the UID to find the user which we're selecting on.
+ u = if name.nil?
+ # user input checking, we don't have any UIDs < 1
+ raise OSM::APIBadUserInput.new("invalid user ID") if user.to_i < 1
+ u = User.find(user.to_i)
+ else
+ u = User.find_by_display_name(name)
+ end
+
+ # make sure we found a user
+ raise OSM::APINotFoundError.new if u.nil?
+
+ # 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 ['user_id = ?', u.id]
+ else
+ return nil
+ end
+ end
+
+ ##
+ # restrict changes to those closed during a particular time period
+ def conditions_time(time)
+ unless time.nil?
+ # 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
+
+ from, to = times.collect { |t| DateTime.parse(t) }
+ return ['closed_at >= ? and created_at <= ?', from, to]
+ else
+ # if there is no comma, assume its a lower limit on time
+ return ['closed_at >= ?', DateTime.parse(time)]
+ end
+ else
+ return nil
+ end
+ # stupid DateTime seems to throw both of these for bad parsing, so
+ # we have to catch both and ensure the correct code path is taken.
+ rescue ArgumentError => ex
+ raise OSM::APIBadUserInput.new(ex.message.to_s)
+ rescue RuntimeError => ex
+ raise OSM::APIBadUserInput.new(ex.message.to_s)
+ end
+
+ ##
+ # return changesets which are open (haven't been closed yet)
+ # we do this by seeing if the 'closed at' time is in the future. Also if we've
+ # hit the maximum number of changes then it counts as no longer open.
+ # if parameter 'open' is nill then open and closed changsets are returned
+ def conditions_open(open)
+ return open.nil? ? nil : ['closed_at >= ? and num_changes <= ?',
+ Time.now.getutc, Changeset::MAX_ELEMENTS]
+ end
+
+ ##
+ # query changesets which are closed
+ # ('closed at' time has passed or changes limit is hit)
+ def conditions_closed(closed)
+ return closed.nil? ? nil : ['closed_at < ? or num_changes > ?',
+ Time.now.getutc, Changeset::MAX_ELEMENTS]
+ end
+
+ ##
+ # eliminate empty changesets (where the bbox has not been set)
+ # this should be applied to all changeset list displays
+ def conditions_nonempty()
+ return ['min_lat IS NOT NULL']
+ end
+
projects / rails.git / blobdiff