RunasSudo/MedicineSearch
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MedicineSearch/html/index.html

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Initial commit
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<!--
Copyright © 2023 Lee Yingtong Li (RunasSudo)
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 <https://www.gnu.org/licenses/>.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>PBS medicine search</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" integrity="sha384-rbsA2VBKQhggwzxH7pPCaAqO46MgnOM80zW1RWuH61DGLwZJEdK2Kadq2F9CUG65" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.2/font/bootstrap-icons.css" integrity="sha256-4RctOgogjPAdwGbwq+rxfwAmSpZhWaafcZR9btzUk18=" crossorigin="anonymous">
Show indications for restricted/authority benefits
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<style type="text/css">
ul { margin-top: 0.5em; margin-bottom: 0 }
</style>
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</head>
<body>
<nav class="navbar navbar-expand-sm navbar-light bg-light d-print-none">
<div class="container">
<a class="navbar-brand" href=" ">PBS medicine search</a>
</div>
</nav>
<div class="container pt-4">
<div>
<input class="form-control" id="search-input" placeholder="Search…" autocomplete="off">
</div>
<div>
<table id="search-results" class="table mt-2">
<thead>
<tr>
<th class="col-1">Item code</th>
<th class="col-8">Drug</th>
<th class="col-1">Quantity</th>
<th class="col-1">Repeats</th>
<th class="col-1">Restriction</th>
</tr>
</thead>
<tbody>
<td colspan="5" class="text-center">Enter a search term above to show results</th>
</tbody>
</table>
</div>
<footer class="border-top pt-4 mt-4">
<p class="text-muted">Results sourced from the PBS database as at January 2023. This tool is made available in the hope that it will be useful, but <b>WITHOUT ANY WARRANTY</b>; without even the implied warranty of <b>MERCHANTABILITY</b> or <b>FITNESS FOR A PARTICULAR PURPOSE</b>. Information provided in this tool is intended for reference by medical professionals. Nothing in this tool is intended to constitute medical advice.</p>
</footer>
</div>
<!--<script src="https://cdn.jsdelivr.net/npm/jquery@3.6.3/dist/jquery.min.js" integrity="sha256-pvPw+upLPUjgMXY0G+8O0xUf+/Im1MZjXxxgOcBQBXU=" crossorigin="anonymous"></script>-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-kenU1KFdBIe4zVF0s0G1M5b4hcpxyD9F7jL+jjXkk+Q2h455rYXK/7HAuoJl+0I4" crossorigin="anonymous"></script>
<script src="autocomplete.js"></script>
Use sql.js for processing on client side
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<script src="https://cdn.jsdelivr.net/npm/sql.js@1.8.0/dist/sql-wasm.min.js"></script>
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<script>
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var db; // Keep in global namespace for debugging
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async function main() {
// Load SQLite database
const sqlPromise = initSqlJs({
locateFile: file => ('https://cdn.jsdelivr.net/npm/sql.js@1.8.0/dist/' + file)
});
const dataPromise = fetch('database.db').then(res => res.arrayBuffer());
const [SQL, buf] = await Promise.all([sqlPromise, dataPromise])
db = new SQL.Database(new Uint8Array(buf));
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// Initialise search bar
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const labels = execAsScalars(db.prepare('SELECT DISTINCT mp_preferred_term FROM pbs_item ORDER BY LOWER(mp_preferred_term)'));
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const data = labels.map(label => ({'label': label}));
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const autocomplete = new Autocomplete(document.getElementById('search-input'), {
data: data,
maximumItems: 20,
threshold: 2,
onSelectItem: onClickSearchItem
});
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}
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function onClickSearchItem(item) {
// Find matching PBS items
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let stmt = db.prepare('SELECT * FROM pbs_item WHERE LOWER(mp_preferred_term) = ?');
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stmt.bind([item.label.toLowerCase()]);
const items = execAsObjects(stmt);
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items.sort(comparePBSItems);
// Update table
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const tbody = document.querySelector('#search-results tbody');
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tbody.innerHTML = '';
for (let item of items) {
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// Get restrictions
stmt = db.prepare('SELECT *, (SELECT COUNT(*) FROM pbs_restriction_criteria WHERE pbs_restriction_criteria.restriction_code = pbs_restriction.code) AS num_criteria FROM pbs_restriction LEFT JOIN pbs_item_restriction ON pbs_restriction.code = pbs_item_restriction.restriction_code WHERE pbs_item_restriction.item_code = ?');
stmt.bind([item['code']]);
const restrictions = execAsObjects(stmt);
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const tr = document.createElement('tr');
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let td = document.createElement('td'); td.innerHTML = '<a href="https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target="_blank">' + item['code'] + '</a>'; tr.appendChild(td);
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td = document.createElement('td');
let div = document.createElement('div'); div.innerText = item['mpp_preferred_term']; td.appendChild(div);
if (restrictions.length > 0) {
let ulRestrictions = document.createElement('ul');
for (let restriction of restrictions) {
let li = document.createElement('li');
li.innerHTML = restriction['indication'];
if (item['benefit_type'] === 'streamlined') {
li.innerHTML += ' (' + restriction['treatment_of'] + ')';
}
if (restriction['num_criteria'] > 0) {
li.innerHTML += ' <span class="text-muted">(' + restriction['num_criteria'] + ' criteria)</span>';
}
ulRestrictions.appendChild(li);
}
td.appendChild(ulRestrictions);
}
tr.appendChild(td);
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td = document.createElement('td'); td.innerText = item['maximum_prescribable_units']; tr.appendChild(td);
td = document.createElement('td'); td.innerText = item['number_repeats']; tr.appendChild(td);
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if (item['benefit_type'] === 'unrestricted') {
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td = document.createElement('td'); tr.appendChild(td);
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} else if (item['benefit_type'] === 'restricted') {
td = document.createElement('td'); td.innerHTML = '<a href="https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target="_blank">Restricted</a>'; tr.appendChild(td);
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tr.classList.add('table-warning');
Read PBS data from XML file
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} else if (item['benefit_type'] === 'streamlined') {
td = document.createElement('td'); td.innerHTML = '<a href="https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target="_blank">Streamlined</a>'; tr.appendChild(td);
tr.classList.add('table-warning');
} else if (item['benefit_type'] === 'authority') {
td = document.createElement('td'); td.innerHTML = '<a href="https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target="_blank">Authority</a>'; tr.appendChild(td);
tr.classList.add('table-danger');
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} else {
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alert('Unknown benefit type: ' + item['benefit_type']);
throw 'Unknown benefit type: ' + item['benefit_type'];
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}
tbody.appendChild(tr);
}
}
const regexIsNumber = /^[0-9]+$/.compile();
function comparePBSItems(item1, item2) {
// Sort tablets/capsules before other forms
Read PBS data from XML file
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if ((item1['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item1['mpp_preferred_term'].indexOf(' capsule, ') >= 0) && !(item2['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item2['mpp_preferred_term'].indexOf(' capsule, ') >= 0)) {
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return -1;
}
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if ((item2['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item2['mpp_preferred_term'].indexOf(' capsule, ') >= 0) && !(item1['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item1['mpp_preferred_term'].indexOf(' capsule, ') >= 0)) {
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return 1;
}
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// Compare mpp_preferred_term word-by-word accounting for numbers
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Read PBS data from XML file
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const bits1 = item1['mpp_preferred_term'].split(' ');
const bits2 = item2['mpp_preferred_term'].split(' ');
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for (let i = 0; i < bits1.length && i < bits2.length; i++) {
if (regexIsNumber.test(bits1[i]) && regexIsNumber.test(bits2[i])) {
// Numeric compare
const num1 = parseInt(bits1[i]);
const num2 = parseInt(bits2[i]);
if (num1 < num2) {
return -1;
}
if (num1 > num2) {
return 1;
}
} else {
// String compare
if (bits1[i] < bits2[i]) {
return -1;
}
if (bits1[i] > bits2[i]) {
return 1;
}
}
}
Sort unrestricted drugs before restricted ones
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// Sort unrestricted, then restricted/streamlined, then authority required
Read PBS data from XML file
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const type1 = item1['benefit_type'] === 'unrestricted' ? 0 : item1['benefit_type'] === 'restricted' ? 1 : item1['benefit_type'] === 'streamlined' ? 1 : 2;
const type2 = item2['benefit_type'] === 'unrestricted' ? 0 : item2['benefit_type'] === 'restricted' ? 1 : item2['benefit_type'] === 'streamlined' ? 1 : 2;
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return type1 - type2;
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}
Use sql.js for processing on client side
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function execAsScalars(stmt) {
let results = [];
while (stmt.step()) {
results.push(stmt.get()[0]);
}
stmt.free();
return results;
}
function execAsObjects(stmt) {
let results = [];
while (stmt.step()) {
results.push(stmt.getAsObject());
}
stmt.free();
return results;
}
main();
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</script>
</body>
</html>
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