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validators.js
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validators.js
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/*
* Geddy JavaScript Web development framework
* Copyright 2112 Matthew Eernisse (mde@fleegix.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
var i18n = require('../i18n');
/*
* Basic validators -- name is the field name, params is the entire params
* collection (needed for stuff like password confirmation so it's possible
* to compare with other field values, and the rule is the data for this
* particular validation
* Rules can look like this:
* present: {qualifier: true, {message: 'Gotta be here'}}
* length: {qualifier: {min: 2, max: 12}}
* withFunction: {qualifier: function (s) { return true },
* message: 'Something is wrong'}
*/
var validators = {
present: function (name, val, params, rule, locale) {
var currentLocale = locale || geddy.config.i18n.defaultLocale
, msg;
if (!val) {
//'Field "' + name + '" is required.';
msg = rule.message || i18n.getText('model.validatesPresent',
{name: name}, currentLocale);
}
return msg;
},
absent: function (name, val, params, rule, locale) {
var currentLocale = locale || geddy.config.i18n.defaultLocale
, msg;
if (val) {
//return rule.message || 'Field "' + name + '" must not be filled in.';
msg = rule.message || i18n.getText('model.validatesAbsent',
{name: name}, currentLocale);
}
return msg;
},
confirmed: function (name, val, params, rule, locale) {
var qual = rule.qualifier
, currentLocale = locale || geddy.config.i18n.defaultLocale
, msg;
if (val != params[qual]) {
//return rule.message || 'Field "' + name + '" and field "' + qual +
// '" must match.';
msg = rule.message || i18n.getText('model.validatesConfirmed',
{name: name, qual: qual}, currentLocale);
}
return msg;
},
format: function (name, val, params, rule, locale) {
var currentLocale = locale || geddy.config.i18n.defaultLocale
, msg;
if (!rule.qualifier.test(val)) {
//return rule.message || 'Field "' + name + '" is not correctly formatted.';
msg = rule.message || i18n.getText('model.validatesFormat',
{name: name}, currentLocale);
}
return msg;
},
length: function (name, val, params, rule, locale) {
var qual = rule.qualifier
, err
, currentLocale = locale || geddy.config.i18n.defaultLocale
, msg;
if (!val) {
return rule.message || 'Field "' + name + '" is required.';
}
if (typeof qual == 'number') {
if (val.length != qual) {
//return rule.message || 'Field "' + name + '" must be ' + qual +
// ' characters long.';
msg = rule.message || i18n.getText('model.validatesExactLength',
{name: name}, currentLocale);
}
}
else {
if (typeof qual.min == 'number' && val.length < qual.min) {
//return rule.message || 'Field "' + name + '" must be at least ' +
// qual.min + ' characters long.';
msg = rule.message || i18n.getText('model.validatesMinLength',
{name: name, min: qual.min}, currentLocale);
}
if (typeof qual.max == 'number' && val.length > qual.max) {
//return rule.message || 'Field "' + name + '" may not be more than ' +
// qual.max + ' characters long.';
msg = rule.message || i18n.getText('model.validatesMaxLength',
{name: name, max: qual.max}, currentLocale);
}
}
return msg;
},
withFunction: function (name, val, params, rule, locale) {
var func = rule.qualifier
, currentLocale = locale || geddy.config.i18n.defaultLocale
, msg;
if (typeof func != 'function') {
throw new Error('withFunction validator for field "' + name +
'" must be a function.');
}
if (!func(val, params)) {
//return rule.message || 'Field "' + name + '" is not valid.';
msg = rule.message || i18n.getText('model.validatesWithFunction',
{name: name}, currentLocale);
}
return msg;
}
};
module.exports = validators;