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Diffstat (limited to 'index.html')
-rw-r--r-- | index.html | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/index.html b/index.html new file mode 100644 index 0000000..7553b5f --- /dev/null +++ b/index.html @@ -0,0 +1,154 @@ +<!DOCTYPE html> +<html> +<head> + <title>Home</title> + <script src="https://cdnjs.cloudflare.com/ajax/libs/sql.js/1.9.0/sql-wasm.js" onload integrity="sha512-PAyD/84QEfxE1X/H3RDJY9kqXtJObyGq6qA93+LnkMNWdTLHjcTKHsDOcz6Y5xAdsaMGItRP5vNs4vtj3/FRuw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> + <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/sakura.css/css/sakura.css" type="text/css"> +</head> + +<body> + <h1>iNeedATitle</h1> + <form> + <textarea id="output" rows="10" cols="80"></textarea> + <input type="text" id="query" value="SELECT COUNT(*) FROM raw_data" style="width: 100%"> + <br> + <input type="button" value="Run Raw Query" onclick="run()"> + </form> + <hr> + <h2>Queries</h2> + <h3>By Instructor</h3> + <p>Find classes, and average grade for a given instructor</p> + <label for="instructor">Instructor:</label> + <input type="text" id="instructor" name="instructor" list="instructors"> + <datalist id="instructors" class="instructorDatalist"> + </datalist> + <button type="button" onclick="getClassesByInstructor()">Get Class Averages</button> + <form> + <div id="table-container"></div> + <script type="text/javascript"> + let SQL = undefined + let db = undefined + + async function fetchDatabase(url) { + const response = await fetch(url); + if (!response.ok) { + throw new Error(`HTTP error! status: ${response.status}`); + } + + const blob = await response.blob(); + const buffer = await blob.arrayBuffer(); + const uInt8Array = new Uint8Array(buffer); + + db = new SQL.Database(uInt8Array); + + // populate instructors + + let query = "SELECT DISTINCT insname1 AS instructor_name FROM raw_data WHERE insname1 IS NOT NULL UNION SELECT DISTINCT insname2 FROM raw_data WHERE insname2 IS NOT NULL UNION SELECT DISTINCT insname3 FROM raw_data WHERE insname3 IS NOT NULL;" + const results = db.exec(query); + + const result = results[0]; + const columns = result.columns; + const rows = result.values; + + let datalist = document.getElementById("instructors"); + + for (let i = 0; i < rows.length; i++) { + let option = document.createElement("option"); + option.value = rows[i][0]; + datalist.appendChild(option); + } + + + } + + async function loadDatabase() { + SQL = await initSqlJs({ + locateFile: file => `https://cdnjs.cloudflare.com/ajax/libs/sql.js/1.9.0/sql-wasm.wasm` + }); + fetchDatabase("./grades.sqlite"); + } + + loadDatabase(); + + function run() { + const query = document.getElementById("query").value; + const results = db.exec(query); + const result = results[0]; + const columns = result.columns; + const rows = result.values; + const output = document.getElementById("output"); + output.value = JSON.stringify({columns, rows}, null, 2); + } + +function getClassesByInstructor() { + let instructor = document.getElementById("instructor").value; + + let query = `SELECT CourseTitle, GROUP_CONCAT(DISTINCT YearTerm) AS YearTerms, MAX(Subject) AS Subject, MAX(Course) AS Course, ROUND(AVG(AVG_GRD), 2) AS AverageGrade FROM raw_data AS main WHERE insname1 = '${instructor}' OR insname2 = '${instructor}' OR insname3 = '${instructor}' GROUP BY CourseTitle` + console.log(query); + + const results = db.exec(query); + const result = results[0]; + const columns = result.columns; + const rows = result.values; + const tableContainer = document.getElementById("table-container"); + const table = document.createElement("table"); + const thead = document.createElement("thead"); + const tbody = document.createElement("tbody"); + const headerRow = document.createElement("tr"); + + for (let i = 0; i < columns.length; i++) { + const headerCell = document.createElement("th"); + headerCell.textContent = columns[i]; + headerRow.appendChild(headerCell); + } + + thead.appendChild(headerRow); + + for (let i = 0; i < rows.length; i++) { + const row = document.createElement("tr"); + for (let j = 0; j < rows[i].length; j++) { + const cell = document.createElement("td"); + if (columns[j] === "YearTerms") { + cell.textContent = convertYearTerm(rows[i][j]); + } else if (!isNaN(rows[i][j]) && rows[i][j] !== null) { + cell.textContent = parseFloat(rows[i][j]).toFixed(2); + } else { + cell.textContent = rows[i][j]; + } + row.appendChild(cell); + } + tbody.appendChild(row); + } + + table.appendChild(thead); + table.appendChild(tbody); + tableContainer.innerHTML = ""; + tableContainer.appendChild(table); +} + +function convertYearTerm(yearTerms) { + return yearTerms.split(',').map(term => { + const year = term.slice(0, 4); // Assuming the year is 2000+ + const termCode = term.slice(-1); // Getting the last character for the term + let termName = ''; + switch(termCode) { + case '1': + termName = 'Spring'; + break; + case '4': + termName = 'Summer'; + break; + case '7': + termName = 'Fall'; + break; + default: + termName = 'Unknown'; + } + return `${termName} ${year}`; + }).join(', '); +} + + + </script> +</body> +</html> |