71 lines
1.6 KiB
JavaScript
71 lines
1.6 KiB
JavaScript
"use strict";
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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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module.exports = (function() {
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delete require.cache[require.resolve('../driver')];
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var driver = require('../driver'),
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helpers = require('../helpers');
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// Sqlite doesn't have a truncate command
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driver.hasTruncate = false;
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/**
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* SQL to insert a group of rows
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* Override default to have better compatibility
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*
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* @param {String} table - The table to insert to
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* @param {Array} [data] - The array of object containing data to insert
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* @return {String}
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*/
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driver.insertBatch = function(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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var 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(function(obj) {
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var row = [];
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Object.keys(obj).forEach(function(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 " + driver.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(function(key) {
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cols.push("'" + driver._quote(first[key]) + "' AS " + driver.quoteIdentifiers(key));
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});
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sql += "SELECT " + cols.join(', ') + "\n";
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vals.forEach(function(row_values) {
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var quoted = row_values.map(function(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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return driver;
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}()); |