95e5178bfb
This avoids constructing xml by hand in both the controller and the model, and opens the way for other rendering in future. The complexity of deciding which point goes where, along with revisiting previous tracks and tracksegs means that I've broken it down into two parts - sorting the points into the right trksegs is done first, before rendering them all as xml. I couldn't find a way to allow revisiting using the builder.
43 lines
1.5 KiB
Ruby
43 lines
1.5 KiB
Ruby
module Api
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class TracepointsController < ApiController
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authorize_resource
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before_action :check_api_readable
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around_action :api_call_handle_error, :api_call_timeout
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# Get an XML response containing a list of tracepoints that have been uploaded
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# within the specified bounding box, and in the specified page.
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def index
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# retrieve the page number
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page = params["page"].to_s.to_i
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unless page >= 0
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report_error("Page number must be greater than or equal to 0")
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return
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end
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offset = page * Settings.tracepoints_per_page
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# Figure out the bbox
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# check boundary is sane and area within defined
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# see /config/application.yml
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begin
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bbox = BoundingBox.from_bbox_params(params)
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bbox.check_boundaries
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bbox.check_size
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rescue StandardError => e
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report_error(e.message)
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return
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end
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# get all the points
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ordered_points = Tracepoint.bbox(bbox).joins(:trace).where(:gpx_files => { :visibility => %w[trackable identifiable] }).order("gpx_id DESC, trackid ASC, timestamp ASC")
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unordered_points = Tracepoint.bbox(bbox).joins(:trace).where(:gpx_files => { :visibility => %w[public private] }).order("gps_points.latitude", "gps_points.longitude", "gps_points.timestamp")
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@points = ordered_points.union_all(unordered_points).offset(offset).limit(Settings.tracepoints_per_page).preload(:trace)
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response.headers["Content-Disposition"] = "attachment; filename=\"tracks.gpx\""
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render :formats => [:gpx]
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end
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end
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end
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