<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>DocStrap Source: driver.js</title> <!--[if lt IE 9]> <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <link type="text/css" rel="stylesheet" href="styles/sunlight.default.css"> <link type="text/css" rel="stylesheet" href="styles/site.cosmo.css"> </head> <body> <div class="container-fluid"> <div class="navbar navbar-fixed-top navbar-inverse"> <div class="navbar-inner"> <a class="brand" href="index.html">DocStrap</a> <ul class="nav"> <li class="dropdown"> <a href="modules.list.html" class="dropdown-toggle" data-toggle="dropdown">Modules<b class="caret"></b></a> <ul class="dropdown-menu "> <li> <a href="module-adapter.html">adapter</a> </li> <li> <a href="module-driver.html">driver</a> </li> <li> <a href="module-helpers.html">helpers</a> </li> <li> <a href="module-node-query.html">node-query</a> </li> <li> <a href="module-query-builder.html">query-builder</a> </li> <li> <a href="module-query-parser.html">query-parser</a> </li> <li> <a href="module-State.html">State</a> </li> </ul> </li> </ul> </div> </div> <div class="row-fluid"> <div class="span12"> <div id="main"> <h1 class="page-title">Source: driver.js</h1> <section> <article> <pre class="sunlight-highlight-javascript linenums">'use strict'; var helpers = require('./helpers'); /** * Base Database Driver * * @module driver */ var d = { identifierChar: '"', tablePrefix: null, hasTruncate: true, /** * Low level function for naive quoting of strings * @param {String} str * @return {String} * @private */ _quote: function(str) { return (helpers.isString(str) && ! (str.startsWith(d.identifierChar) || str.endsWith(d.identifierChar))) ? d.identifierChar + str + d.identifierChar : str; }, /** * Set the limit clause * @param {String} sql * @param {Number} limit * @param {Number|null} offset * @return {String} */ limit: function(sql, limit, offset) { sql += " LIMIT " + limit; if (helpers.isNumber(offset)) { sql += " OFFSET " + offset; } return sql; }, /** * Quote database table name, and set prefix * * @param {String} table * @return {String} */ quoteTable: function(table) { // Quote after prefix return d.quoteIdentifiers(table); }, /** * Use the driver's escape character to quote identifiers * * @param {String|Array} * @return {String|Array} */ quoteIdentifiers: function(str) { var hiers, raw; var pattern = new RegExp(d.identifierChar + '(' + '([a-zA-Z0-9_]+)' + '(\((.*?)\))' + ')' + d.identifierChar, 'ig'); // Recurse for arrays of identifiiers if (Array.isArray(str)) { return str.map(d.quoteIdentifiers); } // Handle commas if (str.contains(',')) { var parts = str.split(',').map(helpers.stringTrim); str = parts.map(d.quoteIdentifiers).join(','); } // Split identifiers by period hiers = str.split('.').map(d._quote); raw = hiers.join('.'); // Fix functions if (raw.contains('(') && raw.contains(')')) { var funcs = pattern.exec(raw); // Unquote the function raw = raw.replace(funcs[0], funcs[1]); // Quote the identifiers inside of the parens var inParens = funcs[3].substring(1, funcs[3].length -1); raw = raw.replace(inParens, d.quoteIdentifiers(inParens)); } return raw; }, /** * SQL to truncate the passed table * * @param {String} table * @return {String} - sql */ truncate: function(table) { var sql = (d.hasTruncate) ? 'TRUNCATE ' : 'DELETE FROM '; sql += d.quoteTable(table); return sql; }, /** * SQL to insert a group of rows * * @param {String} table - The table to insert to * @param {Array} [data] - The array of object containing data to insert * @return {String} */ insertBatch: function(table, data) { // Get the data values to insert, so they can // be parameterized var vals = []; data.forEach(function(obj) { Object.keys(obj).forEach(function(key) { vals.push(obj[key]); }); }); // Get the field names from the keys of the first // object inserted var fields = Object.keys(data[0]); table = d.quoteTable(table); var sql = "INSERT INTO " + table + " (" + d.quoteIdentifiers(fields).join(",") + ") VALUES "; // Create placeholder groups var params = new Array(fields.length).fill('?'); var paramString = "(" + params.join(',') + ")"; var paramList = new Array(data.length).fill(paramString); sql += paramList.join(','); return { sql: sql, values: vals }; } }; module.exports = d;</pre> </article> </section> </div> <div class="clearfix"></div> <footer> <span class="copyright"> DocStrap Copyright © 2012-2014 The contributors to the JSDoc3 and DocStrap projects. </span> <br /> <span class="jsdoc-message"> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-alpha9</a> on Fri Jan 23rd 2015 using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>. </span> </footer> </div> <br clear="both"> </div> </div> <!--<script src="scripts/sunlight.js"></script>--> <script src="scripts/docstrap.lib.js"></script> <script src="scripts/bootstrap-dropdown.js"></script> <script src="scripts/toc.js"></script> <script> $( function () { $( "[id*='$']" ).each( function () { var $this = $( this ); $this.attr( "id", $this.attr( "id" ).replace( "$", "__" ) ); } ); $( "#toc" ).toc( { anchorName : function ( i, heading, prefix ) { return $( heading ).attr( "id" ) || ( prefix + i ); }, selectors : "h1,h2,h3,h4", showAndHide : false, scrollTo : "100px" } ); $( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" ); $( "#main span[id^='toc']" ).addClass( "toc-shim" ); $( '.dropdown-toggle' ).dropdown(); // $( ".tutorial-section pre, .readme-section pre" ).addClass( "sunlight-highlight-javascript" ).addClass( "linenums" ); $( ".tutorial-section pre, .readme-section pre" ).each( function () { var $this = $( this ); var example = $this.find( "code" ); exampleText = example.html(); var lang = /{@lang (.*?)}/.exec( exampleText ); if ( lang && lang[1] ) { exampleText = exampleText.replace( lang[0], "" ); example.html( exampleText ); lang = lang[1]; } else { lang = "javascript"; } if ( lang ) { $this .addClass( "sunlight-highlight-" + lang ) .addClass( "linenums" ) .html( example.html() ); } } ); Sunlight.highlightAll( { lineNumbers : true, showMenu : true, enableDoclinks : true } ); } ); </script> <!--Navigation and Symbol Display--> <!--Google Analytics--> </body> </html>