32 lines
1.4 KiB
JavaScript
32 lines
1.4 KiB
JavaScript
<script>
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(function () {
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var data = window.blogData;
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if (!data || !data.articles) return;
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var me = document.body.getAttribute("data-note-id");
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var all = data.articles;
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var cur = null;
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for (var i = 0; i < all.length; i++) { if (all[i].id === me) { cur = all[i]; break; } }
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if (!cur) return;
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var tags = cur.tags || [], cat = cur.category || "", scored = [];
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for (var j = 0; j < all.length; j++) {
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var a = all[j];
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if (a.id === me) continue;
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var s = 0;
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if (cat && a.category === cat) s += 2;
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for (var t = 0; t < tags.length; t++) { if ((a.tags || []).indexOf(tags[t]) >= 0) s += 1; }
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if (s > 0) scored.push({ a: a, score: s });
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}
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scored.sort(function (x, y) { return y.score - x.score; });
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var rel = scored.slice(0, 4);
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if (!rel.length) return;
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var host = document.getElementById("content");
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if (!host) return;
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var sec = document.createElement("section");
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sec.className = "blog-related";
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var h = document.createElement("h2"); h.textContent = "Related posts"; sec.appendChild(h);
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var ul = document.createElement("ul");
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rel.forEach(function (r) { var li = document.createElement("li"); var a = document.createElement("a"); a.href = r.a.url; a.textContent = r.a.title; li.appendChild(a); ul.appendChild(li); });
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sec.appendChild(ul); host.appendChild(sec);
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})();
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</script>
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