154 lines
5 KiB
Ruby
154 lines
5 KiB
Ruby
# The ChangesetController is the RESTful interface to Changeset objects
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class ChangesetsController < ApplicationController
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include UserMethods
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layout "site"
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before_action :authorize_web
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before_action :set_locale
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before_action -> { check_database_readable(:need_api => true) }, :only => [:index, :feed, :show]
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before_action :require_oauth, :only => :show
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before_action :check_database_writable, :only => [:subscribe, :unsubscribe]
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authorize_resource
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around_action :web_timeout
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##
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# list non-empty changesets in reverse chronological order
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def index
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param! :max_id, Integer, :min => 1
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@params = params.permit(:display_name, :bbox, :friends, :nearby, :max_id, :list)
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if request.format == :atom && @params[:max_id]
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redirect_to url_for(@params.merge(:max_id => nil)), :status => :moved_permanently
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return
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end
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if @params[:display_name]
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user = User.find_by(:display_name => @params[:display_name])
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if !user || !user.active?
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render_unknown_user @params[:display_name]
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return
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end
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end
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if (@params[:friends] || @params[:nearby]) && !current_user
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require_user
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return
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end
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if request.format == :html && !@params[:list]
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require_oauth
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render :action => :history, :layout => map_layout
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else
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changesets = conditions_nonempty(Changeset.all)
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if @params[:display_name]
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changesets = if user.data_public? || user == current_user
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changesets.where(:user => user)
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else
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changesets.where("false")
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end
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elsif @params[:bbox]
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changesets = conditions_bbox(changesets, BoundingBox.from_bbox_params(params))
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elsif @params[:friends] && current_user
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changesets = changesets.where(:user => current_user.friends.identifiable)
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elsif @params[:nearby] && current_user
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changesets = changesets.where(:user => current_user.nearby)
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end
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changesets = changesets.where("changesets.id <= ?", @params[:max_id]) if @params[:max_id]
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@changesets = changesets.order("changesets.id DESC").limit(20).preload(:user, :changeset_tags, :comments)
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render :action => :index, :layout => false
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end
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end
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##
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# list edits as an atom feed
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def feed
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index
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end
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def show
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@type = "changeset"
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@changeset = Changeset.find(params[:id])
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@comments = if current_user&.moderator?
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@changeset.comments.unscope(:where => :visible).includes(:author)
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else
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@changeset.comments.includes(:author)
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end
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@node_pages, @nodes = paginate(:old_nodes, :conditions => { :changeset_id => @changeset.id }, :per_page => 20, :parameter => "node_page")
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@way_pages, @ways = paginate(:old_ways, :conditions => { :changeset_id => @changeset.id }, :per_page => 20, :parameter => "way_page")
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@relation_pages, @relations = paginate(:old_relations, :conditions => { :changeset_id => @changeset.id }, :per_page => 20, :parameter => "relation_page")
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if @changeset.user.active? && @changeset.user.data_public?
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changesets = conditions_nonempty(@changeset.user.changesets)
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@next_by_user = changesets.where("id > ?", @changeset.id).reorder(:id => :asc).first
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@prev_by_user = changesets.where("id < ?", @changeset.id).reorder(:id => :desc).first
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end
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render :layout => map_layout
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rescue ActiveRecord::RecordNotFound
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render :template => "browse/not_found", :status => :not_found, :layout => map_layout
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end
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##
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# subscribe to a changeset
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def subscribe
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@changeset = Changeset.find(params[:id])
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if request.post?
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@changeset.subscribe(current_user) unless @changeset.subscribed?(current_user)
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redirect_to changeset_path(@changeset)
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end
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rescue ActiveRecord::RecordNotFound
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render :action => "no_such_entry", :status => :not_found
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end
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##
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# unsubscribe from a changeset
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def unsubscribe
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@changeset = Changeset.find(params[:id])
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if request.post?
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@changeset.unsubscribe(current_user)
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redirect_to changeset_path(@changeset)
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end
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rescue ActiveRecord::RecordNotFound
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render :action => "no_such_entry", :status => :not_found
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end
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private
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#------------------------------------------------------------
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# utility functions below.
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#------------------------------------------------------------
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##
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# if a bounding box was specified do some sanity checks.
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# restrict changesets to those enclosed by a bounding box
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def conditions_bbox(changesets, bbox)
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if bbox
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bbox.check_boundaries
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bbox = bbox.to_scaled
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changesets.where("min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?",
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bbox.max_lon.to_i, bbox.min_lon.to_i,
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bbox.max_lat.to_i, bbox.min_lat.to_i)
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else
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changesets
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end
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end
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##
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# eliminate empty changesets (where the bbox has not been set)
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# this should be applied to all changeset list displays
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def conditions_nonempty(changesets)
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changesets.where("num_changes > 0")
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end
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end
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