336 lines
6.9 KiB
HTML
336 lines
6.9 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>DocStrap Source: driver.js</title>
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<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
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<![endif]-->
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<body>
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<a class="brand" href="index.html">DocStrap</a>
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<a href="modules.list.html" class="dropdown-toggle" data-toggle="dropdown">Modules<b
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class="caret"></b></a>
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<ul class="dropdown-menu ">
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<a href="module-adapter.html">adapter</a>
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</li>
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<li>
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<a href="module-driver.html">driver</a>
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<a href="module-helpers.html">helpers</a>
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<a href="module-node-query.html">node-query</a>
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<a href="module-query-builder.html">query-builder</a>
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<a href="module-query-parser.html">query-parser</a>
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<div class="row-fluid">
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<div class="span12">
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<div id="main">
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<h1 class="page-title">Source: driver.js</h1>
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<section>
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<article>
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<pre
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class="sunlight-highlight-javascript linenums">'use strict';
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var helpers = require('./helpers');
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/**
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* Base Database Driver
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*
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* @module driver
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*/
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var d = {
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identifierChar: '"',
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tablePrefix: null,
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hasTruncate: true,
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/**
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* Low level function for naive quoting of strings
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* @param {String} str
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* @return {String}
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* @private
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*/
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_quote: function(str) {
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return (helpers.isString(str) && ! (str.startsWith(d.identifierChar) || str.endsWith(d.identifierChar)))
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? d.identifierChar + str + d.identifierChar
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: str;
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},
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/**
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* Set the limit clause
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* @param {String} sql
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* @param {Number} limit
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* @param {Number|null} offset
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* @return {String}
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*/
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limit: function(sql, limit, offset) {
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sql += " LIMIT " + limit;
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if (helpers.isNumber(offset))
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{
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sql += " OFFSET " + offset;
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}
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return sql;
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},
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/**
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* Quote database table name, and set prefix
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*
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* @param {String} table
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* @return {String}
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*/
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quoteTable: function(table) {
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// Quote after prefix
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return d.quoteIdentifiers(table);
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},
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/**
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* Use the driver's escape character to quote identifiers
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*
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* @param {String|Array}
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* @return {String|Array}
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*/
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quoteIdentifiers: function(str) {
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var hiers, raw;
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var pattern = new RegExp(d.identifierChar + '(' + '([a-zA-Z0-9_]+)' + '(\((.*?)\))' + ')' + d.identifierChar, 'ig');
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// Recurse for arrays of identifiiers
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if (Array.isArray(str))
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{
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return str.map(d.quoteIdentifiers);
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}
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// Handle commas
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if (str.contains(','))
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{
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var parts = str.split(',').map(helpers.stringTrim);
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str = parts.map(d.quoteIdentifiers).join(',');
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}
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// Split identifiers by period
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hiers = str.split('.').map(d._quote);
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raw = hiers.join('.');
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// Fix functions
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if (raw.contains('(') && raw.contains(')'))
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{
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var funcs = pattern.exec(raw);
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// Unquote the function
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raw = raw.replace(funcs[0], funcs[1]);
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// Quote the identifiers inside of the parens
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var inParens = funcs[3].substring(1, funcs[3].length -1);
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raw = raw.replace(inParens, d.quoteIdentifiers(inParens));
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}
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return raw;
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},
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/**
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* SQL to truncate the passed table
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*
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* @param {String} table
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* @return {String} - sql
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*/
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truncate: function(table) {
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var sql = (d.hasTruncate)
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? 'TRUNCATE '
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: 'DELETE FROM ';
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sql += d.quoteTable(table);
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return sql;
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},
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/**
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* SQL to insert a group of rows
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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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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 vals = [];
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data.forEach(function(obj) {
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Object.keys(obj).forEach(function(key) {
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vals.push(obj[key]);
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});
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});
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// Get the field names from the keys of the first
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// object inserted
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var fields = Object.keys(data[0]);
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table = d.quoteTable(table);
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var sql = "INSERT INTO " + table + " ("
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+ d.quoteIdentifiers(fields).join(",")
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+ ") VALUES ";
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// Create placeholder groups
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var params = new Array(fields.length).fill('?');
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var paramString = "(" + params.join(',') + ")";
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var paramList = new Array(data.length).fill(paramString);
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sql += paramList.join(',');
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return {
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sql: sql,
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values: vals
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};
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}
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};
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module.exports = d;</pre>
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</article>
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</section>
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</div>
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<div class="clearfix"></div>
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<footer>
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<span class="copyright">
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DocStrap Copyright © 2012-2014 The contributors to the JSDoc3 and DocStrap projects.
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</span>
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<br />
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<span class="jsdoc-message">
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-alpha9</a>
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on Wed Nov 5th 2014 using the <a
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href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
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</span>
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</footer>
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</div>
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<br clear="both">
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</div>
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</div>
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<!--<script src="scripts/sunlight.js"></script>-->
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<script src="scripts/docstrap.lib.js"></script>
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<script src="scripts/bootstrap-dropdown.js"></script>
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<script src="scripts/toc.js"></script>
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<script>
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$( function () {
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$( "[id*='$']" ).each( function () {
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var $this = $( this );
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$this.attr( "id", $this.attr( "id" ).replace( "$", "__" ) );
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} );
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$( "#toc" ).toc( {
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anchorName : function ( i, heading, prefix ) {
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return $( heading ).attr( "id" ) || ( prefix + i );
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},
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selectors : "h1,h2,h3,h4",
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showAndHide : false,
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scrollTo : "100px"
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} );
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$( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" );
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$( "#main span[id^='toc']" ).addClass( "toc-shim" );
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$( '.dropdown-toggle' ).dropdown();
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// $( ".tutorial-section pre, .readme-section pre" ).addClass( "sunlight-highlight-javascript" ).addClass( "linenums" );
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$( ".tutorial-section pre, .readme-section pre" ).each( function () {
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var $this = $( this );
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var example = $this.find( "code" );
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exampleText = example.html();
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var lang = /{@lang (.*?)}/.exec( exampleText );
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if ( lang && lang[1] ) {
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exampleText = exampleText.replace( lang[0], "" );
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example.html( exampleText );
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lang = lang[1];
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} else {
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lang = "javascript";
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}
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if ( lang ) {
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$this
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.addClass( "sunlight-highlight-" + lang )
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.addClass( "linenums" )
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.html( example.html() );
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}
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} );
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Sunlight.highlightAll( {
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lineNumbers : true,
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showMenu : true,
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enableDoclinks : true
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} );
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} );
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</script>
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<!--Navigation and Symbol Display-->
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<!--Google Analytics-->
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</body>
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</html>
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