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examples.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.6/moment.min.js"></script>
<script src="validate.js"></script>
<style>
.help-block.error {
margin-bottom: 5px;
}
</style>
</head>
<body>
<div class="container">
<h1>Validate.js example</h1>
<!--
This is an example form that shows some common input types and how to
validate them.
The native HTML form validate has been disabled to show how validate.js works
in action.
-->
<form id="main" class="form-horizontal" action="/example" method="post" novalidate>
<div class="form-group">
<label class="col-sm-2 control-label" for="email">Email</label>
<div class="col-sm-5">
<input id="email" class="form-control" type="email" placeholder="Email" name="email">
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="password">Password</label>
<div class="col-sm-5">
<input id="password" class="form-control" type="password" placeholder="Password" name="password">
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="confirm-password">Confirm password</label>
<div class="col-sm-5">
<input id="confirm-password" class="form-control" type="password" placeholder="Confirm password" name="confirm-password">
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="username">Username</label>
<div class="col-sm-5">
<input id="username" class="form-control" type="text" placeholder="Username" name="username">
</div>
<div class="col-sm-5 messages">
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="birthdate">Birthdate</label>
<div class="col-sm-5">
<input id="birthdate" class="form-control" type="date" placeholder="YYYY-MM-DD" name="birthdate">
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="country">Country</label>
<div class="col-sm-5">
<select id="country" class="form-control" name="country">
<option value=""></option>
<option value="AF">Afghanistan</option>
<option value="AX">Åland Islands</option>
<option value="AL">Albania</option>
<option value="DZ">Algeria</option>
<option value="AS">American Samoa</option>
<option value="AD">Andorra</option>
<option value="AO">Angola</option>
<option value="AI">Anguilla</option>
<option value="AQ">Antarctica</option>
<option value="AG">Antigua and Barbuda</option>
<option value="AR">Argentina</option>
<option value="AM">Armenia</option>
<option value="AW">Aruba</option>
<option value="AU">Australia</option>
<option value="AT">Austria</option>
<option value="AZ">Azerbaijan</option>
<option value="BS">Bahamas</option>
<option value="BH">Bahrain</option>
<option value="BD">Bangladesh</option>
<option value="BB">Barbados</option>
<option value="BY">Belarus</option>
<option value="BE">Belgium</option>
<option value="BZ">Belize</option>
<option value="BJ">Benin</option>
<option value="BM">Bermuda</option>
<option value="BT">Bhutan</option>
<option value="BO">Bolivia</option>
<option value="BA">Bosnia and Herzegovina</option>
<option value="BW">Botswana</option>
<option value="BV">Bouvet Island</option>
<option value="BR">Brazil</option>
<option value="IO">British Indian Ocean Territory</option>
<option value="BN">Brunei Darussalam</option>
<option value="BG">Bulgaria</option>
<option value="BF">Burkina Faso</option>
<option value="BI">Burundi</option>
<option value="KH">Cambodia</option>
<option value="CM">Cameroon</option>
<option value="CA">Canada</option>
<option value="CV">Cape Verde</option>
<option value="KY">Cayman Islands</option>
<option value="CF">Central African Republic</option>
<option value="TD">Chad</option>
<option value="CL">Chile</option>
<option value="CN">China</option>
<option value="CX">Christmas Island</option>
<option value="CC">Cocos (Keeling) Islands</option>
<option value="CO">Colombia</option>
<option value="KM">Comoros</option>
<option value="CG">Congo</option>
<option value="CD">Congo, The Democratic Republic of The</option>
<option value="CK">Cook Islands</option>
<option value="CR">Costa Rica</option>
<option value="CI">Cote D'ivoire</option>
<option value="HR">Croatia</option>
<option value="CU">Cuba</option>
<option value="CY">Cyprus</option>
<option value="CZ">Czech Republic</option>
<option value="DK">Denmark</option>
<option value="DJ">Djibouti</option>
<option value="DM">Dominica</option>
<option value="DO">Dominican Republic</option>
<option value="EC">Ecuador</option>
<option value="EG">Egypt</option>
<option value="SV">El Salvador</option>
<option value="GQ">Equatorial Guinea</option>
<option value="ER">Eritrea</option>
<option value="EE">Estonia</option>
<option value="ET">Ethiopia</option>
<option value="FK">Falkland Islands (Malvinas)</option>
<option value="FO">Faroe Islands</option>
<option value="FJ">Fiji</option>
<option value="FI">Finland</option>
<option value="FR">France</option>
<option value="GF">French Guiana</option>
<option value="PF">French Polynesia</option>
<option value="TF">French Southern Territories</option>
<option value="GA">Gabon</option>
<option value="GM">Gambia</option>
<option value="GE">Georgia</option>
<option value="DE">Germany</option>
<option value="GH">Ghana</option>
<option value="GI">Gibraltar</option>
<option value="GR">Greece</option>
<option value="GL">Greenland</option>
<option value="GD">Grenada</option>
<option value="GP">Guadeloupe</option>
<option value="GU">Guam</option>
<option value="GT">Guatemala</option>
<option value="GG">Guernsey</option>
<option value="GN">Guinea</option>
<option value="GW">Guinea-bissau</option>
<option value="GY">Guyana</option>
<option value="HT">Haiti</option>
<option value="HM">Heard Island and Mcdonald Islands</option>
<option value="VA">Holy See (Vatican City State)</option>
<option value="HN">Honduras</option>
<option value="HK">Hong Kong</option>
<option value="HU">Hungary</option>
<option value="IS">Iceland</option>
<option value="IN">India</option>
<option value="ID">Indonesia</option>
<option value="IR">Iran, Islamic Republic of</option>
<option value="IQ">Iraq</option>
<option value="IE">Ireland</option>
<option value="IM">Isle of Man</option>
<option value="IL">Israel</option>
<option value="IT">Italy</option>
<option value="JM">Jamaica</option>
<option value="JP">Japan</option>
<option value="JE">Jersey</option>
<option value="JO">Jordan</option>
<option value="KZ">Kazakhstan</option>
<option value="KE">Kenya</option>
<option value="KI">Kiribati</option>
<option value="KP">Korea, Democratic People's Republic of</option>
<option value="KR">Korea, Republic of</option>
<option value="KW">Kuwait</option>
<option value="KG">Kyrgyzstan</option>
<option value="LA">Lao People's Democratic Republic</option>
<option value="LV">Latvia</option>
<option value="LB">Lebanon</option>
<option value="LS">Lesotho</option>
<option value="LR">Liberia</option>
<option value="LY">Libyan Arab Jamahiriya</option>
<option value="LI">Liechtenstein</option>
<option value="LT">Lithuania</option>
<option value="LU">Luxembourg</option>
<option value="MO">Macao</option>
<option value="MK">Macedonia, The Former Yugoslav Republic of</option>
<option value="MG">Madagascar</option>
<option value="MW">Malawi</option>
<option value="MY">Malaysia</option>
<option value="MV">Maldives</option>
<option value="ML">Mali</option>
<option value="MT">Malta</option>
<option value="MH">Marshall Islands</option>
<option value="MQ">Martinique</option>
<option value="MR">Mauritania</option>
<option value="MU">Mauritius</option>
<option value="YT">Mayotte</option>
<option value="MX">Mexico</option>
<option value="FM">Micronesia, Federated States of</option>
<option value="MD">Moldova, Republic of</option>
<option value="MC">Monaco</option>
<option value="MN">Mongolia</option>
<option value="ME">Montenegro</option>
<option value="MS">Montserrat</option>
<option value="MA">Morocco</option>
<option value="MZ">Mozambique</option>
<option value="MM">Myanmar</option>
<option value="NA">Namibia</option>
<option value="NR">Nauru</option>
<option value="NP">Nepal</option>
<option value="NL">Netherlands</option>
<option value="AN">Netherlands Antilles</option>
<option value="NC">New Caledonia</option>
<option value="NZ">New Zealand</option>
<option value="NI">Nicaragua</option>
<option value="NE">Niger</option>
<option value="NG">Nigeria</option>
<option value="NU">Niue</option>
<option value="NF">Norfolk Island</option>
<option value="MP">Northern Mariana Islands</option>
<option value="NO">Norway</option>
<option value="OM">Oman</option>
<option value="PK">Pakistan</option>
<option value="PW">Palau</option>
<option value="PS">Palestinian Territory, Occupied</option>
<option value="PA">Panama</option>
<option value="PG">Papua New Guinea</option>
<option value="PY">Paraguay</option>
<option value="PE">Peru</option>
<option value="PH">Philippines</option>
<option value="PN">Pitcairn</option>
<option value="PL">Poland</option>
<option value="PT">Portugal</option>
<option value="PR">Puerto Rico</option>
<option value="QA">Qatar</option>
<option value="RE">Reunion</option>
<option value="RO">Romania</option>
<option value="RU">Russian Federation</option>
<option value="RW">Rwanda</option>
<option value="SH">Saint Helena</option>
<option value="KN">Saint Kitts and Nevis</option>
<option value="LC">Saint Lucia</option>
<option value="PM">Saint Pierre and Miquelon</option>
<option value="VC">Saint Vincent and The Grenadines</option>
<option value="WS">Samoa</option>
<option value="SM">San Marino</option>
<option value="ST">Sao Tome and Principe</option>
<option value="SA">Saudi Arabia</option>
<option value="SN">Senegal</option>
<option value="RS">Serbia</option>
<option value="SC">Seychelles</option>
<option value="SL">Sierra Leone</option>
<option value="SG">Singapore</option>
<option value="SK">Slovakia</option>
<option value="SI">Slovenia</option>
<option value="SB">Solomon Islands</option>
<option value="SO">Somalia</option>
<option value="ZA">South Africa</option>
<option value="GS">South Georgia and The South Sandwich Islands</option>
<option value="ES">Spain</option>
<option value="LK">Sri Lanka</option>
<option value="SD">Sudan</option>
<option value="SR">Suriname</option>
<option value="SJ">Svalbard and Jan Mayen</option>
<option value="SZ">Swaziland</option>
<option value="SE">Sweden</option>
<option value="CH">Switzerland</option>
<option value="SY">Syrian Arab Republic</option>
<option value="TW">Taiwan, Province of China</option>
<option value="TJ">Tajikistan</option>
<option value="TZ">Tanzania, United Republic of</option>
<option value="TH">Thailand</option>
<option value="TL">Timor-leste</option>
<option value="TG">Togo</option>
<option value="TK">Tokelau</option>
<option value="TO">Tonga</option>
<option value="TT">Trinidad and Tobago</option>
<option value="TN">Tunisia</option>
<option value="TR">Turkey</option>
<option value="TM">Turkmenistan</option>
<option value="TC">Turks and Caicos Islands</option>
<option value="TV">Tuvalu</option>
<option value="UG">Uganda</option>
<option value="UA">Ukraine</option>
<option value="AE">United Arab Emirates</option>
<option value="GB">United Kingdom</option>
<option value="US">United States</option>
<option value="UM">United States Minor Outlying Islands</option>
<option value="UY">Uruguay</option>
<option value="UZ">Uzbekistan</option>
<option value="VU">Vanuatu</option>
<option value="VE">Venezuela</option>
<option value="VN">Viet Nam</option>
<option value="VG">Virgin Islands, British</option>
<option value="VI">Virgin Islands, U.S.</option>
<option value="WF">Wallis and Futuna</option>
<option value="EH">Western Sahara</option>
<option value="YE">Yemen</option>
<option value="ZM">Zambia</option>
<option value="ZW">Zimbabwe</option>
</select>
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="zip">ZIP Code</label>
<div class="col-sm-5">
<input id="zip" class="form-control" type="text" placeholder="12345" name="zip">
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label" for="number-of-children">Number of children</label>
<div class="col-sm-5">
<input id="number-of-children" class="form-control" type="number" placeholder="Number of children" name="number-of-children">
</div>
<div class="col-sm-5 messages"></div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-default">Submit</button>
</div>
</div>
</form>
</div>
<script>
(function() {
// Before using it we must add the parse and format functions
// Here is a sample implementation using moment.js
validate.extend(validate.validators.datetime, {
// The value is guaranteed not to be null or undefined but otherwise it
// could be anything.
parse: function(value, options) {
return +moment.utc(value);
},
// Input is a unix timestamp
format: function(value, options) {
var format = options.dateOnly ? "YYYY-MM-DD" : "YYYY-MM-DD hh:mm:ss";
return moment.utc(value).format(format);
}
});
// These are the constraints used to validate the form
var constraints = {
email: {
// Email is required
presence: true,
// and must be an email (duh)
email: true
},
password: {
// Password is also required
presence: true,
// And must be at least 5 characters long
length: {
minimum: 5
}
},
"confirm-password": {
// You need to confirm your password
presence: true,
// and it needs to be equal to the other password
equality: {
attribute: "password",
message: "^The passwords does not match"
}
},
username: {
// You need to pick a username too
presence: true,
// And it must be between 3 and 20 characters long
length: {
minimum: 3,
maximum: 20
},
format: {
// We don't allow anything that a-z and 0-9
pattern: "[a-z0-9]+",
// but we don't care if the username is uppercase or lowercase
flags: "i",
message: "can only contain a-z and 0-9"
}
},
birthdate: {
// The user needs to give a birthday
presence: true,
// and must be born at least 18 years ago
date: {
latest: moment().subtract(18, "years"),
message: "^You must be at least 18 years old to use this service"
}
},
country: {
// You also need to input where you live
presence: true,
// And we restrict the countries supported to Sweden
inclusion: {
within: ["SE"],
// The ^ prevents the field name from being prepended to the error
message: "^Sorry, this service is for Sweden only"
}
},
zip: {
// Zip is optional but if specified it must be a 5 digit long number
format: {
pattern: "\\d{5}"
}
},
"number-of-children": {
presence: true,
// Number of children has to be an integer >= 0
numericality: {
onlyInteger: true,
greaterThanOrEqualTo: 0
}
}
};
// Hook up the form so we can prevent it from being posted
var form = document.querySelector("form#main");
form.addEventListener("submit", function(ev) {
ev.preventDefault();
handleFormSubmit(form);
});
// Hook up the inputs to validate on the fly
var inputs = document.querySelectorAll("input, textarea, select")
for (var i = 0; i < inputs.length; ++i) {
inputs.item(i).addEventListener("change", function(ev) {
var errors = validate(form, constraints) || {};
showErrorsForInput(this, errors[this.name])
});
}
function handleFormSubmit(form, input) {
// validate the form against the constraints
var errors = validate(form, constraints);
// then we update the form to reflect the results
showErrors(form, errors || {});
if (!errors) {
showSuccess();
}
}
// Updates the inputs with the validation errors
function showErrors(form, errors) {
// We loop through all the inputs and show the errors for that input
_.each(form.querySelectorAll("input[name], select[name]"), function(input) {
// Since the errors can be null if no errors were found we need to handle
// that
showErrorsForInput(input, errors && errors[input.name]);
});
}
// Shows the errors for a specific input
function showErrorsForInput(input, errors) {
// This is the root of the input
var formGroup = closestParent(input.parentNode, "form-group")
// Find where the error messages will be insert into
, messages = formGroup.querySelector(".messages");
// First we remove any old messages and resets the classes
resetFormGroup(formGroup);
// If we have errors
if (errors) {
// we first mark the group has having errors
formGroup.classList.add("has-error");
// then we append all the errors
_.each(errors, function(error) {
addError(messages, error);
});
} else {
// otherwise we simply mark it as success
formGroup.classList.add("has-success");
}
}
// Recusively finds the closest parent that has the specified class
function closestParent(child, className) {
if (!child || child == document) {
return null;
}
if (child.classList.contains(className)) {
return child;
} else {
return closestParent(child.parentNode, className);
}
}
function resetFormGroup(formGroup) {
// Remove the success and error classes
formGroup.classList.remove("has-error");
formGroup.classList.remove("has-success");
// and remove any old messages
_.each(formGroup.querySelectorAll(".help-block.error"), function(el) {
el.parentNode.removeChild(el);
});
}
// Adds the specified error with the following markup
// <p class="help-block error">[message]</p>
function addError(messages, error) {
var block = document.createElement("p");
block.classList.add("help-block");
block.classList.add("error");
block.innerText = error;
messages.appendChild(block);
}
function showSuccess() {
// We made it \:D/
alert("Success!");
}
})();
</script>
</body>
</html>