def query
# create the conditions that the user asked for. some or all of
# these may be nil.
- conditions = conditions_bbox(params['bbox'])
- conditions = cond_merge conditions, conditions_user(params['user'], params['display_name'])
- conditions = cond_merge conditions, conditions_time(params['time'])
- conditions = cond_merge conditions, conditions_open(params['open'])
- conditions = cond_merge conditions, conditions_closed(params['closed'])
+ changesets = Changeset.scoped
+ changesets = conditions_bbox(changesets, params['bbox'])
+ changesets = conditions_user(changesets, params['user'], params['display_name'])
+ changesets = conditions_time(changesets, params['time'])
+ changesets = conditions_open(changesets, params['open'])
+ changesets = conditions_closed(changesets, params['closed'])
# create the results document
results = OSM::API.new.get_xml_doc
# add all matching changesets to the XML results document
- Changeset.find(:all,
- :conditions => conditions,
- :limit => 100,
- :order => 'created_at desc').each do |cs|
+ changesets.order("created_at DESC").limit(100).each do |cs|
results.root << cs.to_xml_node
end
if request.format == :atom and params[:page]
redirect_to params.merge({ :page => nil }), :status => :moved_permanently
else
- conditions = conditions_nonempty
+ changesets = conditions_nonempty(Changeset.scoped)
if params[:display_name]
- user = User.find_by_display_name(params[:display_name], :conditions => { :status => ["active", "confirmed"] })
+ user = User.find_by_display_name(params[:display_name])
- if user
+ if user and user.active?
if user.data_public? or user == @user
- conditions = cond_merge conditions, ['user_id = ?', user.id]
+ changesets = changesets.where(:user_id => user.id)
else
- conditions = cond_merge conditions, ['false']
+ changesets = changesets.where("false")
end
elsif request.format == :html
@title = t 'user.no_such_user.title'
end
if bbox
- conditions = cond_merge conditions, conditions_bbox(bbox)
+ changesets = conditions_bbox(changesets, bbox)
bbox = BoundingBox.from_s(bbox)
bbox_link = render_to_string :partial => "bbox", :object => bbox
end
@bbox = bbox
- @edits = Changeset.find(:all,
- :include => [:user, :changeset_tags],
- :conditions => conditions,
- :order => "changesets.created_at DESC",
- :offset => (@page - 1) * @page_size,
- :limit => @page_size)
+ @edits = changesets.order("changesets.created_at DESC").offset((@page - 1) * @page_size).limit(@page_size).preload(:user, :changeset_tags)
end
end
# 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)
+ def conditions_bbox(changesets, 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).to_i,
- (bbox[0] * GeoRecord::SCALE).to_i,
- (bbox[3] * GeoRecord::SCALE).to_i,
- (bbox[1] * GeoRecord::SCALE).to_i]
+ return changesets.where("min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?",
+ (bbox[2] * GeoRecord::SCALE).to_i,
+ (bbox[0] * GeoRecord::SCALE).to_i,
+ (bbox[3] * GeoRecord::SCALE).to_i,
+ (bbox[1] * GeoRecord::SCALE).to_i)
else
- return nil
+ return changesets
end
end
##
# restrict changesets to those by a particular user
- def conditions_user(user, name)
+ def conditions_user(changesets, 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
raise OSM::APINotFoundError if @user.nil? or @user.id != u.id
end
- return ['user_id = ?', u.id]
+ return changesets.where(:user_id => u.id)
else
- return nil
+ return changesets
end
end
##
# restrict changes to those closed during a particular time period
- def conditions_time(time)
+ def conditions_time(changesets, 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.
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]
+ return changesets.where("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)]
+ return changesets.where("closed_at >= ?", DateTime.parse(time))
end
else
- return nil
+ return changesets
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.
# 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]
+ # if parameter 'open' is nill then open and closed changesets are returned
+ def conditions_open(changesets, open)
+ if open.nil?
+ return changesets
+ else
+ 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)
- def conditions_closed(closed)
- return closed.nil? ? nil : ['(closed_at < ? or num_changes > ?)',
- Time.now.getutc, Changeset::MAX_ELEMENTS]
+ def conditions_closed(changesets, closed)
+ if closed.nil?
+ return changesets
+ else
+ return changesets.where("closed_at < ? or num_changes > ?",
+ Time.now.getutc, Changeset::MAX_ELEMENTS)
+ end
end
##
# eliminate empty changesets (where the bbox has not been set)
# this should be applied to all changeset list displays
- def conditions_nonempty()
- return ['num_changes > 0']
+ def conditions_nonempty(changesets)
+ return changesets.where("num_changes > 0")
end
end
projects / rails.git / blobdiff