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Form dan HTML Laravel

Saturday, October 17, 2015


Installation


Begin by installing this package through Composer. Edit your project's composer.json file to require laravelcollective/html.
"require": {
    "laravelcollective/html": "~5.0"
}

Next, update Composer from the Terminal:
composer update

Next, add your new provider to the providers array of config/app.php:
  'providers' => [
    // ...
    'Collective\Html\HtmlServiceProvider',
    // ...
  ],

Finally, add two class aliases to the aliases array of config/app.php:
  'aliases' => [
    // ...
      'Form' => 'Collective\Html\FormFacade',
      'Html' => 'Collective\Html\HtmlFacade',
    // ...
  ],

Looking to install this package in Lumen? First of all, making this package compatible with Lumen will require some core changes to Lumen, which we believe would dampen the effectiveness of having Lumen in the first place. Secondly, it is our belief that if you need this package in your application, then you should be using Laravel anyway.


Opening A Form


Opening A Form


{!! Form::open(array('url' => 'foo/bar')) !!}
    //
{!! Form::close() !!}

By default, a POST method will be assumed; however, you are free to specify another method:
echo Form::open(array('url' => 'foo/bar', 'method' => 'put'))

Note: Since HTML forms only support POST and GET, PUT and DELETE methods will be spoofed by automatically adding a _method hidden field to your form.

You may also open forms that point to named routes or controller actions:
echo Form::open(array('route' => 'route.name'))

echo Form::open(array('action' => 'Controller@method'))

You may pass in route parameters as well:
echo Form::open(array('route' => array('route.name', $user->id)))

echo Form::open(array('action' => array('Controller@method', $user->id)))

If your form is going to accept file uploads, add a files option to your array:
echo Form::open(array('url' => 'foo/bar', 'files' => true))


CSRF Protection


Adding The CSRF Token To A Form


Laravel provides an easy method of protecting your application from cross-site request forgeries. First, a random token is placed in your user's session. If you use the Form::open method with POST, PUT or DELETE the CSRF token will be added to your forms as a hidden field automatically. Alternatively, if you wish to generate the HTML for the hidden CSRF field, you may use the token method:
echo Form::token();

Attaching The CSRF Filter To A Route


Route::post('profile', array('before' => 'csrf', function()
{
    //
}));


Form Model Binding


Opening A Model Form


Often, you will want to populate a form based on the contents of a model. To do so, use the Form::model method:
echo Form::model($user, array('route' => array('user.update', $user->id)))

Now, when you generate a form element, like a text input, the model's value matching the field's name will automatically be set as the field value. So, for example, for a text input named email, the user model's email attribute would be set as the value. However, there's more! If there is an item in the Session flash data matching the input name, that will take precedence over the model's value. So, the priority looks like this:

  1. Session Flash Data (Old Input)

  2. Explicitly Passed Value

  3. Model Attribute Data


This allows you to quickly build forms that not only bind to model values, but easily re-populate if there is a validation error on the server!
Note: When using Form::model, be sure to close your form with Form::close!


Labels


Generating A Label Element


echo Form::label('email', 'E-Mail Address');

Specifying Extra HTML Attributes


echo Form::label('email', 'E-Mail Address', array('class' => 'awesome'));

Note: After creating a label, any form element you create with a name matching the label name will automatically receive an ID matching the label name as well.


Text, Text Area, Password & Hidden Fields


Generating A Text Input


echo Form::text('username');

Specifying A Default Value


echo Form::text('email', 'example@gmail.com');

Note: The hidden and textarea methods have the same signature as the text method.

Generating A Password Input


echo Form::password('password');

Generating Other Inputs


echo Form::email($name, $value = null, $attributes = array());
echo Form::file($name, $attributes = array());


Checkboxes and Radio Buttons


Generating A Checkbox Or Radio Input


echo Form::checkbox('name', 'value');

echo Form::radio('name', 'value');

Generating A Checkbox Or Radio Input That Is Checked


echo Form::checkbox('name', 'value', true);

echo Form::radio('name', 'value', true);


Number


Generating A Number Input


echo Form::number('name', 'value');


Date


Generating A Date Input


echo Form::date('name', \Carbon\Carbon::now());


File Input


Generating A File Input


echo Form::file('image');

Note: The form must have been opened with the files option set to true.


Drop-Down Lists


Generating A Drop-Down List


echo Form::select('size', array('L' => 'Large', 'S' => 'Small'));

Generating A Drop-Down List With Selected Default


echo Form::select('size', array('L' => 'Large', 'S' => 'Small'), 'S');

Generating A Grouped List


echo Form::select('animal', array(
    'Cats' => array('leopard' => 'Leopard'),
    'Dogs' => array('spaniel' => 'Spaniel'),
));

Generating A Drop-Down List With A Range


echo Form::selectRange('number', 10, 20);

Generating A List With Month Names


echo Form::selectMonth('month');


Buttons


Generating A Submit Button


echo Form::submit('Click Me!');

Note: Need to create a button element? Try the button method. It has the same signature as submit.


Custom Macros


Registering A Form Macro


It's easy to define your own custom Form class helpers called "macros". Here's how it works. First, simply register the macro with a given name and a Closure:
Form::macro('myField', function()
{
    return '<input type="awesome">';
});

Now you can call your macro using its name:

Calling A Custom Form Macro


echo Form::myField();


Generating URLs


link_to


Generate a HTML link to the given URL.
echo link_to('foo/bar', $title = null, $attributes = array(), $secure = null);

link_to_asset


Generate a HTML link to the given asset.
echo link_to_asset('foo/bar.zip', $title = null, $attributes = array(), $secure = null);

link_to_route


Generate a HTML link to the given named route.
echo link_to_route('route.name', $title = null, $parameters = array(), $attributes = array());

link_to_action


Generate a HTML link to the given controller action.
echo link_to_action('HomeController@getIndex', $title = null, $parameters = array(), $attributes = array());

Sumber Laravel Collection
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