65 lines
2.6 KiB
JavaScript
65 lines
2.6 KiB
JavaScript
import { sqlite } from './init.js'
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const entriesPerPage = process.env.ENTRIES_PER_PAGE ?? 50
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function simpleSanitize(str) {
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return String(str).replace(/\s/g, "")
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}
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/**
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* This is a 'general' search function for the sqlite database...
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*
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* @param {string} table The table to search in.
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* @param {string} matchField If not 'undefined' or 'null' match 'matchQuery' in this field.
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* @param {string} matchQuery The value to search for in 'matchField'.
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* @param {string} orderBy The field of which to order by, if 'null' or 'undefined' it is whatever sqlite sees as default.
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* @param {boolean} descending If true: sort in ascending order instead of ascending order.
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* @param {string} method If set to "all" it will give all results instead of only one.
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* @param {number} page The function paginates; this sets the page to look for.
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*
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* @returns {Promise} Returns a promise which wither resolves with the data or rejects with an error.
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*
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* @author BurnyLlama
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*/
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export default function searcher(table, matchField=undefined, matchQuery=undefined, orderBy=undefined, descending=false, method="get", page=1) {
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return new Promise(
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(resolve, reject) => {
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const pageCount =
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method === "get" ? 0 :
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Math.ceil(
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sqlite
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.prepare(`
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SELECT count(*) FROM ${simpleSanitize(table)}
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${matchField ? `WHERE ${simpleSanitize(matchField)} LIKE $matchQuery` : ""}
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`)
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.get({
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matchQuery
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})['count(*)']
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/ entriesPerPage
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)
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if (method === "all" && page > pageCount)
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reject(`Page number too high! Page count: ${pageCount}`)
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const result = sqlite
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.prepare(`
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SELECT * FROM ${simpleSanitize(table)}
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${matchField ? `WHERE ${simpleSanitize(matchField)} LIKE $matchQuery` : ""}
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${orderBy ? `ORDER BY ${simpleSanitize(orderBy)} ${descending === true ? "DESC" : "ASC"}` : ""}
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${method === "all" ? `LIMIT ${entriesPerPage * (page - 1)}, ${entriesPerPage}` : ""}
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`)
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[method === "all" ? "all" : "get"]({
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matchQuery
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})
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// This check should work?
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if ((typeof result === "object" && !result[0]) || (!result))
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reject("No search results found!")
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resolve({
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result,
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pageCount
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})
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}
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)
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} |