46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
const query = require("../db.js");
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const { toSnakeCase } = require("./utils.js");
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const getAllData = async (req, res) => {
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try {
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const { client, tableName, page } = req.params;
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const dBtableName = `${client}_${toSnakeCase(tableName)}`;
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const tableCheck = await query(`
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SELECT EXISTS (SELECT 1 FROM pg_tables WHERE tablename = $1)
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AS table_exists`, [dBtableName]);
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if (!tableCheck.rows[0]["table_exists"]) {
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return res.status(404).json({ error: `Data collection ${tableName} not found.` });
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}
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const pageSize = 1000;
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const pageNumber = Number(page);
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const offset = (pageNumber - 1) * pageSize;
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// Determine total rows in table
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const result = await query(`SELECT COUNT(*) FROM ${dBtableName}`);
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const totalRows = result.rows[0].count;
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// Get page
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const result2 = await query(`
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SELECT data
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FROM ${dBtableName}
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ORDER BY id
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OFFSET $1 ROWS
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FETCH FIRST $2 ROWS ONLY`, [offset, pageSize]);
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const pageData = result2.rows.map(row => row.data);
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res.status(200).json({
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data: pageData,
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currentPage: pageNumber,
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totalPages: Math.ceil(totalRows / pageSize)
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});
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} catch (err) {
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console.error("Error handling the request:", err);
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res.status(500).json({ error: "An error occurred while processing the request" });
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}
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};
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module.exports = getAllData;
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