76 lines
2.4 KiB
JavaScript
76 lines
2.4 KiB
JavaScript
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'use strict';
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exports = module.exports = {
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get: get,
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add: add,
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del: del,
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count: count,
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_clear: clear
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};
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var assert = require('assert'),
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database = require('./database.js'),
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debug = require('debug')('box:groupdb'),
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DatabaseError = require('./databaseerror');
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var GROUPS_FIELDS = [ 'id', 'name' ].join(',');
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function get(groupId, callback) {
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assert.strictEqual(typeof groupId, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query('SELECT ' + GROUPS_FIELDS + ' FROM groups WHERE id = ?', [ groupId ], function (error, result) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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if (result.length === 0) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
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callback(null, result[0]);
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});
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}
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function add(id, name, callback) {
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assert.strictEqual(typeof id, 'string');
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assert.strictEqual(typeof name, 'string');
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assert.strictEqual(typeof callback, 'function');
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var data = [ id, name ];
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database.query('INSERT INTO groupd (id, name) VALUES (?, ?)',
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data, function (error, result) {
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if (error && error.code === 'ER_DUP_ENTRY') return callback(new DatabaseError(DatabaseError.ALREADY_EXISTS, error));
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if (error || result.affectedRows !== 1) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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callback(null);
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});
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}
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function del(id, callback) {
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assert.strictEqual(typeof id, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query('DELETE FROM groups WHERE id = ?', [ id ], function (error, result) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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if (result.affectedRows !== 1) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
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callback(error);
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});
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}
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function count(callback) {
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assert.strictEqual(typeof callback, 'function');
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database.query('SELECT COUNT(*) AS total FROM groups', function (error, result) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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return callback(null, result[0].total);
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});
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}
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function clear(callback) {
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database.query('DELETE FROM groups', function (error) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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callback(error);
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});
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}
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