Start of some code style cleanup

.jscsrc

@@ -0,0 +1,7 @@
+{
+	"preset": "airbnb",
+	"validateIndentation": null,
+	"requireLineFeedAtFileEnd": null,
+	"disallowSpaceAfterPrefixUnaryOperators": null,
+	"disallowMultipleVarDecl": null
+}

gulpfile.js

@@ -86,6 +86,7 @@ gulp.task('mocha', ['lint-tests', 'sloc'], () => {
 		.pipe(mocha({
 			ui: 'tdd',
 			bail: true,
+			reporter: 'list'
 			//reporter: 'dot',
 			//reporter: 'landing',
 		}))

lib/Adapter.js

@@ -21,6 +21,14 @@ module.exports = class Adapter {
 	 * @return {void}
 	 */
 	execute(/*sql, params, callback*/) {
-		throw new Error("Correct adapter not defined for query execution");
+		throw new Error('Correct adapter not defined for query execution');
 	}
+
+	/**
+	 * Close the current database connection
+	 * @return {void}
+	 */
+	close() {
+		this.instance.close();
 	}
+};

lib/Driver.js

@@ -128,9 +128,9 @@ let d = {
 	insertBatch(table, data) {
 		let vals = [],
 			fields = Object.keys(data[0]),
-			sql = "",
+			sql = '',
 			params = [],
-			paramString = "",
+			paramString = '',
 			paramList = [];
 
 		// Get the data values to insert, so they can
@@ -145,7 +145,7 @@ let d = {
 		// object inserted
 		table = d.quoteTable(table);
 
-		sql += `INSERT INTO ${table} (${d.quoteIdentifiers(fields).join(",")}) VALUES `;
+		sql += `INSERT INTO ${table} (${d.quoteIdentifiers(fields).join(',')}) VALUES `;
 
 		// Create placeholder groups
 		params = Array(fields.length).fill('?');
@@ -156,10 +156,9 @@ let d = {
 
 		return {
 			sql: sql,
-			values: vals
+			values: vals,
 		};
-	}
-
+	},
 };
 
 module.exports = d;

lib/NodeQuery.js

@@ -1,4 +1,4 @@
-"use strict";
+'use strict';
 
 let fs = require('fs'),
 	helpers = require('./helpers'),
@@ -31,7 +31,7 @@ class NodeQuery {
 
 		let paths = {
 			driver: `${__dirname}/drivers/${helpers.upperCaseFirst(driverType)}`,
-			adapter: `${__dirname}/adapters/${connLib}`
+			adapter: `${__dirname}/adapters/${connLib}`,
 		};
 
 		Object.keys(paths).forEach(type => {
@@ -60,7 +60,7 @@ class NodeQuery {
 	 */
 	getQuery() {
 		if (this.instance == null) {
-			throw new Error("No Query Builder instance to return");
+			throw new Error('No Query Builder instance to return');
 		}
 
 		return this.instance;

lib/QueryBuilder.js

@@ -68,8 +68,7 @@ module.exports = class QueryBuilder {
 
 				sql = `INSERT INTO ${table} (`;
 				sql += this.state.setArrayKeys.join(',');
-				sql += ") VALUES (";
-				sql += params.join(',') + ')';
+				sql += `) VALUES (${params.join(',')})`;
 			break;
 
 			case "update":
@@ -205,7 +204,7 @@ module.exports = class QueryBuilder {
 		}
 		else
 		{
-			conj = ' ' + conj + ' ';
+			conj = ` ${conj} `;
 		}
 
 		return conj;
@@ -229,7 +228,7 @@ module.exports = class QueryBuilder {
 
 	_whereNull(field, stmt, conj) {
 		field = this.driver.quoteIdentifiers(field);
-		let item = field + ' ' + stmt;
+		let item = `${field} ${stmt}`;
 
 		this._appendMap(this._fixConjunction(conj), item, 'whereNull');
 	}
@@ -268,8 +267,8 @@ module.exports = class QueryBuilder {
 			this.state.whereValues.push(value);
 		});
 
-		args.conj = (this.state.queryMap.length > 0) ? " " + args.conj + " " : ' WHERE ';
-		let str = args.key + " " + args.inClause + " (" + params.join(',') + ") ";
+		args.conj = (this.state.queryMap.length > 0) ? ` ${args.conj} ` : ' WHERE ';
+		let str = `${args.key} ${args.inClause} (${params.join(',')}) `;
 
 		this._appendMap(args.conj, str, 'whereIn');
 	}
@@ -648,10 +647,10 @@ module.exports = class QueryBuilder {
 
 		// Parse out the join condition
 		let parsedCondition = this.parser.compileJoin(cond);
-		let condition = table + ' ON ' + parsedCondition;
+		let condition = `${table} ON ${parsedCondition}`;
 
 		// Append the join condition to the query map
-		this._appendMap("\n" + type.toUpperCase() + ' JOIN ', condition, 'join');
+		this._appendMap(`\n${type.toUpperCase()} JOIN `, condition, 'join');
 
 		return this;
 	}
@@ -673,7 +672,7 @@ module.exports = class QueryBuilder {
 			this.state.groupArray.push(this.driver.quoteIdentifiers(field));
 		}
 
-		this.state.groupString = ' GROUP BY ' + this.state.groupArray.join(',');
+		this.state.groupString = ` GROUP BY ${this.state.groupArray.join(',')}`;
 
 		return this;
 	}
@@ -697,11 +696,11 @@ module.exports = class QueryBuilder {
 
 		// Flatten key/val pairs into an array of space-separated pairs
 		Object.keys(this.state.orderArray).forEach(key => {
-			orderClauses.push(key + ' ' + this.state.orderArray[key].toUpperCase());
+			orderClauses.push(`${key} ${this.state.orderArray[key].toUpperCase()}`);
 		});
 
 		// Set the final string
-		this.state.orderString = ' ORDER BY ' + orderClauses.join(', ');
+		this.state.orderString = ` ORDER BY ${orderClauses.join(', ')}`;
 
 		return this;
 	}

lib/State.js

@@ -25,5 +25,6 @@ module.exports = class State {
 		this.limit = null;
 		this.offset = null;
 	}
-}
+};
+
 // End of module State

lib/adapters/mysql.js

@@ -15,6 +15,5 @@ module.exports = class mysql extends Adapter {
 	execute(sql, params, callback) {
 		let args = getArgs('sql:string, [params], callback:function', arguments);
 		return this.instance.query(args.sql, args.params, args.callback);
-		//this.instance.query.apply(this.instance, Array(args));
 	}
 }

lib/adapters/pg.js

@@ -19,7 +19,7 @@ module.exports = class pg extends Adapter {
 		let count = 0;
 		args.sql = args.sql.replace(/\?/g, () => {
 			count++;
-			return '$' + count;
+			return `$${count}`;
 		});
 
 		this.instance.query(args.sql, args.params, args.callback);

lib/drivers/Firebird.js

@@ -14,22 +14,22 @@ module.exports = (function() {
 	driver.hasTruncate = false;
 
 	/**
-	 * Generate a limit clause for firebird, which uses the syntax closest to the SQL standard
-	 *
-	 * @param {String} sql
-	 * @param {Number} limit
-	 * @param {Number} offset
-	 * @return {String}
+	 * Set the limit clause
+
+	 * @param {String} origSql - SQL statement to modify
+	 * @param {Number} limit - Maximum number of rows to fetch
+	 * @param {Number|null} offset - Number of rows to skip
+	 * @return {String} - Modified SQL statement
 	 */
 	driver.limit = function(origSql, limit, offset) {
-		let sql = 'FIRST ' + limit;
+		let sql = `FIRST ${limit}`;
 
 		if (helpers.isNumber(offset))
 		{
-			sql += ' SKIP ' + offset;
+			sql += ` SKIP ${offset}`;
 		}
 
-		return origSql.replace(/SELECT/i, "SELECT " + sql);;
+		return origSql.replace(/SELECT/i, `SELECT ${sql}`);
 	};
 
 	/**
@@ -37,7 +37,8 @@ module.exports = (function() {
 	 *
 	 * @param {String} table - The table to insert to
 	 * @param {Array} [data] - The array of object containing data to insert
-	 * @return {String}
+	 * @return {void}
+	 * @throws {Error}
 	 */
 	driver.insertBatch = function(table, data) {
 		throw new Error("Not Implemented");

lib/drivers/Mysql.js

@@ -14,15 +14,20 @@ module.exports = (function() {
 	driver.identifierEndChar = '`';
 
 	/**
-	 * Override default limit method because mysql likes to be different
+	 * Set the limit clause
+
+	 * @param {String} sql - SQL statement to modify
+	 * @param {Number} limit - Maximum number of rows to fetch
+	 * @param {Number|null} offset - Number of rows to skip
+	 * @return {String} - Modified SQL statement
 	 */
 	driver.limit = function(sql, limit, offset) {
 		if ( ! helpers.isNumber(offset))
 		{
-			return sql += " LIMIT " + limit;
+			return sql += ` LIMIT ${limit}`;
 		}
 
-		return sql += " LIMIT " + offset + "," + limit;
+		return sql += ` LIMIT ${offset},${limit}`;
 	};
 
 	return driver;

lib/drivers/Sqlite.js

@@ -19,7 +19,7 @@ module.exports = (function() {
 	 *
 	 * @param {String} table - The table to insert to
 	 * @param {Array} [data] - The array of object containing data to insert
-	 * @return {String}
+	 * @return {String} - The generated sql statement
 	 */
 	driver.insertBatch = function(table, data) {
 
@@ -35,30 +35,30 @@ module.exports = (function() {
 			paramList = [];
 
 
-		data.forEach(function(obj) {
+		data.forEach(obj => {
 			let row = [];
-			Object.keys(obj).forEach(function(key) {
+			Object.keys(obj).forEach(key => {
 				row.push(obj[key]);
 			});
 			vals.push(row);
 		});
 
-		sql += "INSERT INTO " + driver.quoteTable(table) + "\n";
+		sql += `INSERT INTO ${driver.quoteTable(table)}\n`;
 
 		// Get the field names from the keys of the first
 		// object to be inserted
 		fields = Object.keys(first);
-		Object.keys(first).forEach(function(key) {
-			cols.push("'" + driver._quote(first[key]) + "' AS " + driver.quoteIdentifiers(key));
+		Object.keys(first).forEach(key => {
+			cols.push(`'${driver._quote(first[key])}' AS ${driver.quoteIdentifiers(key)}`);
 		});
 
-		sql += "SELECT " + cols.join(', ') + "\n";
+		sql += `SELECT ${cols.join(', ')}\n`;
 
-		vals.forEach(function(row_values) {
-			let quoted = row_values.map(function(value) {
+		vals.forEach(row_values => {
+			let quoted = row_values.map(value => {
 				return String(value).replace("'", "'\'");
 			});
-			sql += "UNION ALL SELECT '" + quoted.join("', '") + "'\n";
+			sql += `UNION ALL SELECT '${quoted.join("', '")}'\n`;
 		});
 
 		return {

lib/helpers.js

@@ -112,7 +112,7 @@ types.forEach(t => {
 	 * @param {mixed} o
 	 * @return {Boolean}
 	 */
-    helpers['is' + t] = function (o) {
+    helpers[`is${t}`] = function (o) {
 	    if (t.toLowerCase() === 'infinite')
 	    {
 		    t = 'infinity';

test/adapters/dblite_test.js

@@ -75,7 +75,7 @@ if (connection) {
 			});
 		});
 		suiteTeardown(() => {
-			connection.close();
+			qb.end();
 		});
 	});
 }

test/mocha.opts

@@ -1,4 +1,7 @@
 --ui tdd
 --bail
 --recursive
---reporter nyan
+--reporter dot
+--slow 100
+--timeout 5000
+--check-leaks