64 lines
1.2 KiB
JavaScript
64 lines
1.2 KiB
JavaScript
"use strict";
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import helpers from '../helpers';
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import Driver from '../DriverClass';
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/**
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* Driver for Sqlite databases
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*
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* @module drivers/sqlite
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*/
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class Sqlite extends Driver {
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constructor() {
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super();
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this.hasTruncate = false;
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}
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insertBatch(table, data) {
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// Get the data values to insert, so they can
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// be parameterized
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let sql = "",
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vals = [],
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cols = [],
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fields = [],
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first = data.shift(),
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params = [],
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paramString = "",
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paramList = [];
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data.forEach((obj) => {
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let row = [];
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Object.keys(obj).forEach((key) => {
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row.push(obj[key]);
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});
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vals.push(row);
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});
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sql += "INSERT INTO " + this.quoteTable(table) + "\n";
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// Get the field names from the keys of the first
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// object to be inserted
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fields = Object.keys(first);
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Object.keys(first).forEach((key) => {
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cols.push("'" + this._quote(first[key]) + "' AS " + this.quoteIdentifiers(key));
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});
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sql += "SELECT " + cols.join(', ') + "\n";
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vals.forEach((row_values) => {
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let quoted = row_values.map((value) => {
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return String(value).replace("'", "'\'");
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});
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sql += "UNION ALL SELECT '" + quoted.join("', '") + "'\n";
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});
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return {
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sql: sql,
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values: null
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};
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}
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};
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module.exports = new Sqlite(); |