253 lines
7.6 KiB
Elixir
253 lines
7.6 KiB
Elixir
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defmodule Mse25Web.FeedView do
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use Mse25Web, :html
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def rss(items, _host) do
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~s"""
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<?xml version="1.0" encoding="utf-8"?>
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<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml">
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<channel>
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<title>madr.se</title>
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<description>The online home of Anders Englöf Ytterström, a metalhead and musician living and working in Borlänge, Sweden.</description>
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<language>sv</language>
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<link>https://madr.se/</link>
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<managingEditor>yttan@fastmail.se (Anders Englöf Ytterström)</managingEditor>
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<webMaster>yttan@fastmail.se (Anders Englöf Ytterström)</webMaster>
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<atom:link href="https://madr.se/prenumerera.xml" rel="self" type="application/rss+xml" />
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#{Enum.map(items, &rss_item/1)}
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</channel>
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</rss>
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"""
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end
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def calendar(upcoming) do
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~s"""
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BEGIN:VCALENDAR
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VERSION:2.0
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PRODID:-//https://madr.se//kommande-evenemang
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METHOD:PUBLISH
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#{upcoming |> Enum.map(fn %{title: title, starts_at: starts_at, ends_at: ends_at, longitude: longitude, latitude: latitude, lead: lead, venue: venue, region: region} -> ~s"""
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BEGIN:VEVENT
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UID:#{title}.#{starts_at}@madr.se
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DTSTAMP:#{starts_at}T000000
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DTSTART;VALUE=DATE:#{starts_at}
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DTEND;VALUE=DATE:#{ends_at}
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SUMMARY:#{title}
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DESCRIPTION:#{lead}
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LOCATION:#{venue}\, #{region}
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GEO:#{latitude};#{longitude}
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END:VEVENT
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""" end) |> Enum.join("")}END:VCALENDAR
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"""
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end
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def event_map(markers) do
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~s"""
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(function(g, document) {
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"use strict";
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const mapData = [
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#{markers |> Enum.map(fn %{date: date, latitude: latitude, longitude: longitude, title: title, region: region, venue: venue} -> ~s"""
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{
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location: [#{longitude}, #{latitude}],
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title: "#{title}",
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date: "#{date}",
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region: "#{region}",
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venue: "#{venue}"
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}
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""" end) |> Enum.join(",")}
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]
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// insert Leaflet styles (<link>) to <head> and <script> to
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// bottom of <body>, and initiate the map when the assets have
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// loaded.
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var install = function() {
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var styles, leaflet;
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styles = document.createElement("link");
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styles.rel = "stylesheet";
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styles.href = "https://unpkg.com/leaflet@1.6.0/dist/leaflet.css";
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styles.integrity =
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"sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ==";
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styles.crossOrigin = "";
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document.head.appendChild(styles);
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leaflet = document.createElement("script");
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leaflet.src = "https://unpkg.com/leaflet@1.6.0/dist/leaflet.js";
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leaflet.integrity =
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"sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==";
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leaflet.crossOrigin = "";
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leaflet.async = true;
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leaflet.onload = function() {
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init(mapData);
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};
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document.body.appendChild(leaflet);
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};
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// inititate the map.
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// create markers for all events: one marker per venue. Display all
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// events on each venue through a popup by clicking on the marker.
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// set bounds to have all markers visible.
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var init = function(mapData) {
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var events,
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markers = {},
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L = g.L;
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if (L) {
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// create map and set initial bounds
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events = L.map("leaflet", { zoomDelta: 0.25, zoomSnap: 0 }).fitBounds(
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mapData.map(function(e) {
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return e.location;
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})
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);
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// use OpenStreetMap tile layer: it's free!
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L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}", {
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foo: "bar",
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attribution:
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'Map data © <a href="https://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>'
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}).addTo(events);
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// group events by venue
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mapData.forEach(function(e) {
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if (markers[e.venue]) {
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markers[e.venue].events.push(e.date + " - " + e.title);
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} else {
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markers[e.venue] = {
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region: e.region,
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location: e.location,
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events: [e.date + " - " + e.title]
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};
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}
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});
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// create markers
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for (var m in markers) {
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if (markers.hasOwnProperty(m)) {
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L.marker(markers[m].location)
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.addTo(events)
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.bindPopup(
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"<strong style='color: black'>" +
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m +
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", " +
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markers[m].region +
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"</strong><br>" +
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markers[m].events.join("<br>")
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);
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}
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}
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}
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};
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install();
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})(this, document);
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"""
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end
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def pub_date(nil), do: ""
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def pub_date(%{"pubDate" => date}), do: format_rfc822(date)
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def pub_date(%{"started_at" => date}), do: format_rfc822(date)
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def pub_date(%{"purchased_at" => date}), do: format_rfc822(date)
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defp format_rfc822(date_time) when is_binary(date_time) do
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date_time
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|> Date.from_iso8601!()
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|> format_rfc822()
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end
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defp format_rfc822(date_time), do: Calendar.strftime(date_time, "%a, %d %b %Y 06:06:06 +0200")
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defp rss_item(%{
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:t => :articles,
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"title" => title,
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"contents" => contents,
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"slug" => slug,
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"pubDate" => date
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}) do
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~s"""
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<item>
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<title>#{title}</title>
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<link>https://madr.se/#{slug}</link>
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<description>
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<![CDATA[#{Earmark.as_html!(contents)}]]>
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</description>
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<pubDate>#{format_rfc822(date)}</pubDate>
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<guid>https://madr.se/#{slug}</guid>
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</item>
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"""
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end
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defp rss_item(%{
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:t => :events,
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"title" => title,
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"contents" => contents,
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"slug" => slug,
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"location" => %{
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"position" => %{
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"coordinates" => [lng, lat]
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}
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},
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"started_at" => date
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}) do
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~s"""
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<item>
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<title>#{title}</title>
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<link>https://madr.se/#{slug}</link>
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<description>
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<![CDATA[#{Earmark.as_html!(contents)}]]>
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</description>
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<pubDate>#{format_rfc822(date)}</pubDate>
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<guid>https://madr.se/#{slug}</guid>
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<georss:where>
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<gml:Point>
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<gml:pos>#{to_string(lng) <> " " <> to_string(lat)}</gml:pos>
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</gml:Point>
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</georss:where>
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</item>
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"""
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end
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defp rss_item(%{
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:t => :links,
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"title" => title,
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"contents" => contents,
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"slug" => slug,
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"pubDate" => date,
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"source" => link
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}) do
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~s"""
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<item>
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<title>#{title}</title>
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<link>#{link}</link>
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<description>
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<![CDATA[#{Earmark.as_html!(contents)}]]>
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</description>
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<pubDate>#{format_rfc822(date)}</pubDate>
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<guid>https://madr.se/#{slug}</guid>
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</item>
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"""
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end
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defp rss_item(%{
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:t => :albums,
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"summary" => summary,
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"contents" => contents,
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"purchased_at" => date,
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"externalId" => id,
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"purchase_year" => year
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}) do
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~s"""
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<item>
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<title>#{summary}</title>
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<link>https://madr.se/#{year}/#{id}</link>
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<description>
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<![CDATA[#{Earmark.as_html!(contents)}]]>
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</description>
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<pubDate>#{format_rfc822(date)}</pubDate>
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<guid>https://madr.se/#{year}/#{id}</guid>
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</item>
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"""
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end
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end
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