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watch.m
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watch.m
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watch ; Watch class
; Copyright (C) 2008 Etienne Cherdlu <[email protected]>
;
; This program is free software: you can redistribute it and/or modify
; Copyright (C) 2008 Etienne Cherdlu <[email protected]>
;
; This program is free software: you can redistribute it and/or modify
; it under the terms of the GNU Affero General Public License as
; published by the Free Software Foundation, either version 3 of the
; License, or (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU Affero General Public License for more details.
;
; You should have received a copy of the GNU Affero General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
rss(string) ; Public ; Generate rss feed of a users watch items
;
n watchlist,user,category,sequence,count
;
s watchlist=$p(string,"/",1,2)
s user=$p(watchlist,"/",1)
s category=$p(watchlist,"/",2)
;
d header^http("application/rss+xml")
d prolog^osmXml("")
;
w "<rss version='2.0'>",!
w "<channel>",!
w "<title>OSM Watchlist</title>",!
w "<description>RSS feed of OpenStreetMap changes being watched by user "_$p(watchlist,"/",1)
i category'="" w " for category "_category
w ".</description>",!
;
s sequence=""
f count=1:1 d i sequence="" q
. s sequence=$o(^watchRss(watchlist,sequence),-1) i sequence="" q
. i count>30 s sequence="" q
. ;
. m event=^watchRss(watchlist,sequence)
. ;
. ; If this is a category event then link to the RSS feed for this user's category
. i event("type")="category" d category(.event,user)
. e d element(.event)
;
w "</channel>",!
w "</rss>",!
q
category(event,user) ; Category event
;
w "<item>",!
w "<title>",event("id")_" ",event("mode")," by ",event("changedBy"),"</title>",!
w "<pubDate>",event("timestamp"),"</pubDate>",!
w "<link>http://www.informationfreeway.org/api/0.5/watch/"_user_"/"_event("id")_"</link>",!
w "<guid>http://www.informationfreeway.org/api/0.5/watch/"_user_"/"_event("id")_"</guid>",!
w "</item>",!
;
q
element(event) ; Element event
;
n name
;
s name=$g(event("name"))
i name="" s name=event("type")_" "_event("id")
;
w "<item>",!
w "<title>",name_" ",event("mode")," by ",event("changedBy"),"</title>",!
w "<pubDate>",event("timestamp"),"</pubDate>",!
w "<link>http://www.openstreetmap.org/api/0.5/"_event("type")_"/"_event("id")_"/history</link>",!
w "<guid>http://www.openstreetmap.org/api/0.5/"_event("type")_"/"_event("id")_"/history</guid>",!
w "</item>",!
;
q