TABLE OF CONTENTS

NAME

Mojolicious::Plugin::TagHelpers - Tag helpers plugin

SYNOPSIS

# Mojolicious
$self->plugin('TagHelpers');

# Mojolicious::Lite
plugin 'TagHelpers';

DESCRIPTION

Mojolicious::Plugin::TagHelpers is a collection of HTML tag helpers for Mojolicious.

Most form helpers can automatically pick up previous input values and will show them as default. You can also use "param" in Mojolicious::Plugin::DefaultHelpers to set them manually and let necessary attributes always be generated automatically.

% param country => 'germany' unless param 'country';
<%= radio_button country => 'germany' %> Germany
<%= radio_button country => 'france'  %> France
<%= radio_button country => 'uk'      %> UK

For fields that failed validation with "validation" in Mojolicious::Controller the field-with-error class will be automatically added through the tag_with_error helper, to make styling with CSS easier.

<input class="field-with-error" name="age" type="text" value="250" />

This is a core plugin, that means it is always enabled and its code a good example for learning how to build new plugins, you're welcome to fork it.

See "PLUGINS" in Mojolicious::Plugins for a list of plugins that are available by default.

HELPERS

Mojolicious::Plugin::TagHelpers implements the following helpers.

check_box

%= check_box employed => 1
%= check_box employed => 1, disabled => 'disabled'

Generate input tag of type checkbox. Previous input values will automatically get picked up and shown as default.

<input name="employed" type="checkbox" value="1" />
<input disabled="disabled" name="employed" type="checkbox" value="1" />

color_field

%= color_field 'background'
%= color_field background => '#ffffff'
%= color_field background => '#ffffff', id => 'foo'

Generate input tag of type color. Previous input values will automatically get picked up and shown as default.

<input name="background" type="color" />
<input name="background" type="color" value="#ffffff" />
<input id="foo" name="background" type="color" value="#ffffff" />

csrf_field

%= csrf_field

Generate input tag of type hidden with "csrf_token" in Mojolicious::Plugin::DefaultHelpers.

<input name="csrf_token" type="hidden" value="fa6a08..." />

date_field

%= date_field 'end'
%= date_field end => '2012-12-21'
%= date_field end => '2012-12-21', id => 'foo'

Generate input tag of type date. Previous input values will automatically get picked up and shown as default.

<input name="end" type="date" />
<input name="end" type="date" value="2012-12-21" />
<input id="foo" name="end" type="date" value="2012-12-21" />

datetime_field

%= datetime_field 'end'
%= datetime_field end => '2012-12-21T23:59:59Z'
%= datetime_field end => '2012-12-21T23:59:59Z', id => 'foo'

Generate input tag of type datetime. Previous input values will automatically get picked up and shown as default.

<input name="end" type="datetime" />
<input name="end" type="datetime" value="2012-12-21T23:59:59Z" />
<input id="foo" name="end" type="datetime" value="2012-12-21T23:59:59Z" />

email_field

%= email_field 'notify'
%= email_field notify => 'nospam@example.com'
%= email_field notify => 'nospam@example.com', id => 'foo'

Generate input tag of type email. Previous input values will automatically get picked up and shown as default.

<input name="notify" type="email" />
<input name="notify" type="email" value="nospam@example.com" />
<input id="foo" name="notify" type="email" value="nospam@example.com" />

file_field

%= file_field 'avatar'
%= file_field 'avatar', id => 'foo'

Generate input tag of type file.

<input name="avatar" type="file" />
<input id="foo" name="avatar" type="file" />

form_for

%= form_for login => begin
  %= text_field 'first_name'
  %= submit_button
% end
%= form_for login => {format => 'txt'} => (method => 'POST') => begin
  %= text_field 'first_name'
  %= submit_button
% end
%= form_for '/login' => (enctype => 'multipart/form-data') => begin
  %= text_field 'first_name', disabled => 'disabled'
  %= submit_button
% end
%= form_for 'http://example.com/login' => (method => 'POST') => begin
  %= text_field 'first_name'
  %= submit_button
% end

Generate portable form tag with "url_for" in Mojolicious::Controller. For routes that allow POST but not GET, a method attribute will be automatically added.

<form action="/path/to/login">
  <input name="first_name" type="text" />
  <input value="Ok" type="submit" />
</form>
<form action="/path/to/login.txt" method="POST">
  <input name="first_name" type="text" />
  <input value="Ok" type="submit" />
</form>
<form action="/path/to/login" enctype="multipart/form-data">
  <input disabled="disabled" name="first_name" type="text" />
  <input value="Ok" type="submit" />
</form>
<form action="http://example.com/login" method="POST">
  <input name="first_name" type="text" />
  <input value="Ok" type="submit" />
</form>

hidden_field

%= hidden_field foo => 'bar'
%= hidden_field foo => 'bar', id => 'bar'

Generate input tag of type hidden.

<input name="foo" type="hidden" value="bar" />
<input id="bar" name="foo" type="hidden" value="bar" />

image

%= image '/images/foo.png'
%= image '/images/foo.png', alt => 'Foo'

Generate portable img tag.

<img src="/path/to/images/foo.png" />
<img alt="Foo" src="/path/to/images/foo.png" />

input_tag

%= input_tag 'first_name'
%= input_tag first_name => 'Default name'
%= input_tag 'employed', type => 'checkbox'

Generate input tag. Previous input values will automatically get picked up and shown as default.

<input name="first_name" />
<input name="first_name" value="Default name" />
<input name="employed" type="checkbox" />

javascript

%= javascript '/script.js'
%= javascript begin
  var a = 'b';
% end

Generate portable script tag for JavaScript asset.

<script src="/path/to/script.js" />
<script><![CDATA[
  var a = 'b';
]]></script>

label_for

%= label_for first_name => 'First name'
%= label_for first_name => 'First name', class => 'user'
%= label_for first_name => begin
  First name
% end
%= label_for first_name => (class => 'user') => begin
  First name
% end

Generate label tag.

<label for="first_name">First name</label>
<label class="user" for="first_name">First name</label>
<label for="first_name">
  First name
</label>
<label class="user" for="first_name">
  First name
</label>
%= link_to Home => 'index'
%= link_to Home => 'index' => {format => 'txt'} => (class => 'menu')
%= link_to index => {format => 'txt'} => (class => 'menu') => begin
  Home
% end
%= link_to Contact => 'mailto:sri@example.com'
<%= link_to index => begin %>Home<% end %>
<%= link_to '/file.txt' => begin %>File<% end %>
<%= link_to 'http://mojolicio.us' => begin %>Mojolicious<% end %>
<%= link_to url_for->query(foo => 'bar')->to_abs => begin %>Retry<% end %>

Generate portable a tag with "url_for" in Mojolicious::Controller, defaults to using the capitalized link target as content.

<a href="/path/to/index">Home</a>
<a class="menu" href="/path/to/index.txt">Home</a>
<a class="menu" href="/path/to/index.txt">
  Home
</a>
<a href="mailto:sri@example.com">Contact</a>
<a href="/path/to/index">Home</a>
<a href="/path/to/file.txt">File</a>
<a href="http://mojolicio.us">Mojolicious</a>
<a href="http://127.0.0.1:3000/current/path?foo=bar">Retry</a>

month_field

%= month_field 'vacation'
%= month_field vacation => '2012-12'
%= month_field vacation => '2012-12', id => 'foo'

Generate input tag of type month. Previous input values will automatically get picked up and shown as default.

<input name="vacation" type="month" />
<input name="vacation" type="month" value="2012-12" />
<input id="foo" name="vacation" type="month" value="2012-12" />

number_field

%= number_field 'age'
%= number_field age => 25
%= number_field age => 25, id => 'foo', min => 0, max => 200

Generate input tag of type number. Previous input values will automatically get picked up and shown as default.

<input name="age" type="number" />
<input name="age" type="number" value="25" />
<input id="foo" max="200" min="0" name="age" type="number" value="25" />

password_field

%= password_field 'pass'
%= password_field 'pass', id => 'foo'

Generate input tag of type password.

<input name="pass" type="password" />
<input id="foo" name="pass" type="password" />

radio_button

%= radio_button country => 'germany'
%= radio_button country => 'germany', id => 'foo'

Generate input tag of type radio. Previous input values will automatically get picked up and shown as default.

<input name="country" type="radio" value="germany" />
<input id="foo" name="country" type="radio" value="germany" />

range_field

%= range_field 'age'
%= range_field age => 25
%= range_field age => 25, id => 'foo', min => 0, max => 200

Generate input tag of type range. Previous input values will automatically get picked up and shown as default.

<input name="age" type="range" />
<input name="age" type="range" value="25" />
<input id="foo" max="200" min="200" name="age" type="range" value="25" />

search_field

%= search_field 'q'
%= search_field q => 'perl'
%= search_field q => 'perl', id => 'foo'

Generate input tag of type search. Previous input values will automatically get picked up and shown as default.

<input name="q" type="search" />
<input name="q" type="search" value="perl" />
<input id="foo" name="q" type="search" value="perl" />

select_field

%= select_field country => [qw(de en)]
%= select_field country => [[Germany => 'de'], 'en'], id => 'eu'
%= select_field country => [[Germany => 'de', disabled => 'disabled'], 'en']
%= select_field country => [c(EU => [[Germany => 'de'], 'en'], id => 'eu')]
%= select_field country => [c(EU => [qw(de en)]), c(Asia => [qw(cn jp)])]

Generate select and option tags from array references and optgroup tags from Mojo::Collection objects. Previous input values will automatically get picked up and shown as default.

<select name="country">
  <option value="de">de</option>
  <option value="en">en</option>
</select>
<select id="eu" name="country">
  <option value="de">Germany</option>
  <option value="en">en</option>
</select>
<select name="country">
  <option disabled="disabled" value="de">Germany</option>
  <option value="en">en</option>
</select>
<select name="country">
  <optgroup id="eu" label="EU">
    <option value="de">Germany</option>
    <option value="en">en</option>
  </optgroup>
</select>
<select name="country">
  <optgroup label="EU">
    <option value="de">de</option>
    <option value="en">en</option>
  </optgroup>
  <optgroup label="Asia">
    <option value="cn">cn</option>
    <option value="jp">jp</option>
  </optgroup>
</select>

stylesheet

%= stylesheet '/foo.css'
%= stylesheet begin
  body {color: #000}
% end

Generate portable style or link tag for CSS asset.

<link href="/path/to/foo.css" rel="stylesheet" />
<style><![CDATA[
  body {color: #000}
]]></style>

submit_button

%= submit_button
%= submit_button 'Ok!', id => 'foo'

Generate input tag of type submit.

<input type="submit" value="Ok" />
<input id="foo" type="submit" value="Ok!" />

t

%=t div => 'test & 123'

Alias for "tag".

<div>test &amp; 123</div>

tag

%= tag 'div'
%= tag 'div', id => 'foo'
%= tag div => 'test & 123'
%= tag div => (id => 'foo') => 'test & 123'
%= tag div => (data => {my_id => 1, Name => 'test'}) => 'test & 123'
%= tag div => begin
  test & 123
% end
<%= tag div => (id => 'foo') => begin %>test & 123<% end %>

HTML/XML tag generator.

<div />
<div id="foo" />
<div>test &amp; 123</div>
<div id="foo">test &amp; 123</div>
<div data-my-id="1" data-name="test">test &amp; 123</div>
<div>
  test & 123
</div>
<div id="foo">test & 123</div>

Very useful for reuse in more specific tag helpers.

my $output = $c->tag('div');
my $output = $c->tag('div', id => 'foo');
my $output = $c->tag(div => '<p>This will be escaped</p>');
my $output = $c->tag(div => sub { '<p>This will not be escaped</p>' });

Results are automatically wrapped in Mojo::ByteStream objects to prevent accidental double escaping in ep templates.

tag_with_error

%= tag_with_error 'input', class => 'foo'

Same as "tag", but adds the class field-with-error.

<input class="foo field-with-error" />

tel_field

%= tel_field 'work'
%= tel_field work => '123456789'
%= tel_field work => '123456789', id => 'foo'

Generate input tag of type tel. Previous input values will automatically get picked up and shown as default.

<input name="work" type="tel" />
<input name="work" type="tel" value="123456789" />
<input id="foo" name="work" type="tel" value="123456789" />

text_area

%= text_area 'foo'
%= text_area 'foo', cols => 40
%= text_area foo => 'Default!', cols => 40
%= text_area foo => (cols => 40) => begin
  Default!
% end

Generate textarea tag. Previous input values will automatically get picked up and shown as default.

<textarea name="foo"></textarea>
<textarea cols="40" name="foo"></textarea>
<textarea cols="40" name="foo">Default!</textarea>
<textarea cols="40" name="foo">
  Default!
</textarea>

text_field

%= text_field 'first_name'
%= text_field first_name => 'Default name'
%= text_field first_name => 'Default name', class => 'user'

Generate input tag of type text. Previous input values will automatically get picked up and shown as default.

<input name="first_name" type="text" />
<input name="first_name" type="text" value="Default name" />
<input class="user" name="first_name" type="text" value="Default name" />

time_field

%= time_field 'start'
%= time_field start => '23:59:59'
%= time_field start => '23:59:59', id => 'foo'

Generate input tag of type time. Previous input values will automatically get picked up and shown as default.

<input name="start" type="time" />
<input name="start" type="time" value="23:59:59" />
<input id="foo" name="start" type="time" value="23:59:59" />

url_field

%= url_field 'address'
%= url_field address => 'http://mojolicio.us'
%= url_field address => 'http://mojolicio.us', id => 'foo'

Generate input tag of type url. Previous input values will automatically get picked up and shown as default.

<input name="address" type="url" />
<input name="address" type="url" value="http://mojolicio.us" />
<input id="foo" name="address" type="url" value="http://mojolicio.us" />

week_field

%= week_field 'vacation'
%= week_field vacation => '2012-W17'
%= week_field vacation => '2012-W17', id => 'foo'

Generate input tag of type week. Previous input values will automatically get picked up and shown as default.

<input name="vacation" type="week" />
<input name="vacation" type="week" value="2012-W17" />
<input id="foo" name="vacation" type="week" value="2012-W17" />

METHODS

Mojolicious::Plugin::TagHelpers inherits all methods from Mojolicious::Plugin and implements the following new ones.

register

$plugin->register(Mojolicious->new);

Register helpers in Mojolicious application.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicio.us.