975 lines
22 KiB
PHP
975 lines
22 KiB
PHP
<?php namespace Illuminate\Html;
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use Illuminate\Routing\UrlGenerator;
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use Illuminate\Session\Store as Session;
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use Illuminate\Support\Traits\Macroable;
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class FormBuilder {
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use Macroable;
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/**
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* The HTML builder instance.
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*
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* @var \Illuminate\Html\HtmlBuilder
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*/
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protected $html;
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/**
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* The URL generator instance.
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*
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* @var \Illuminate\Routing\UrlGenerator $url
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*/
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protected $url;
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/**
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* The CSRF token used by the form builder.
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*
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* @var string
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*/
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protected $csrfToken;
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/**
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* The session store implementation.
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*
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* @var \Illuminate\Session\Store
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*/
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protected $session;
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/**
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* The current model instance for the form.
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*
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* @var mixed
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*/
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protected $model;
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/**
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* An array of label names we've created.
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*
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* @var array
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*/
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protected $labels = array();
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/**
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* The reserved form open attributes.
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*
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* @var array
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*/
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protected $reserved = array('method', 'url', 'route', 'action', 'files');
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/**
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* The form methods that should be spoofed, in uppercase.
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*
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* @var array
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*/
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protected $spoofedMethods = array('DELETE', 'PATCH', 'PUT');
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/**
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* The types of inputs to not fill values on by default.
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*
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* @var array
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*/
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protected $skipValueTypes = array('file', 'password', 'checkbox', 'radio');
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/**
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* Create a new form builder instance.
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*
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* @param \Illuminate\Routing\UrlGenerator $url
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* @param \Illuminate\Html\HtmlBuilder $html
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* @param string $csrfToken
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* @return void
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*/
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public function __construct(HtmlBuilder $html, UrlGenerator $url, $csrfToken)
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{
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$this->url = $url;
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$this->html = $html;
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$this->csrfToken = $csrfToken;
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}
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/**
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* Open up a new HTML form.
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*
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* @param array $options
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* @return string
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*/
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public function open(array $options = array())
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{
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$method = array_get($options, 'method', 'post');
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// We need to extract the proper method from the attributes. If the method is
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// something other than GET or POST we'll use POST since we will spoof the
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// actual method since forms don't support the reserved methods in HTML.
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$attributes['method'] = $this->getMethod($method);
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$attributes['action'] = $this->getAction($options);
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$attributes['accept-charset'] = 'UTF-8';
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// If the method is PUT, PATCH or DELETE we will need to add a spoofer hidden
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// field that will instruct the Symfony request to pretend the method is a
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// different method than it actually is, for convenience from the forms.
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$append = $this->getAppendage($method);
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if (isset($options['files']) && $options['files'])
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{
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$options['enctype'] = 'multipart/form-data';
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}
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// Finally we're ready to create the final form HTML field. We will attribute
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// format the array of attributes. We will also add on the appendage which
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// is used to spoof requests for this PUT, PATCH, etc. methods on forms.
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$attributes = array_merge(
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$attributes, array_except($options, $this->reserved)
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);
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// Finally, we will concatenate all of the attributes into a single string so
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// we can build out the final form open statement. We'll also append on an
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// extra value for the hidden _method field if it's needed for the form.
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$attributes = $this->html->attributes($attributes);
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return '<form'.$attributes.'>'.$append;
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}
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/**
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* Create a new model based form builder.
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*
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* @param mixed $model
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* @param array $options
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* @return string
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*/
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public function model($model, array $options = array())
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{
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$this->model = $model;
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return $this->open($options);
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}
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/**
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* Set the model instance on the form builder.
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*
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* @param mixed $model
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* @return void
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*/
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public function setModel($model)
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{
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$this->model = $model;
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}
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/**
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* Close the current form.
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*
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* @return string
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*/
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public function close()
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{
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$this->labels = array();
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$this->model = null;
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return '</form>';
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}
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/**
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* Generate a hidden field with the current CSRF token.
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*
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* @return string
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*/
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public function token()
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{
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$token = ! empty($this->csrfToken) ? $this->csrfToken : $this->session->getToken();
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return $this->hidden('_token', $token);
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}
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/**
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* Create a form label element.
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*
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function label($name, $value = null, $options = array())
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{
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$this->labels[] = $name;
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$options = $this->html->attributes($options);
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$value = e($this->formatLabel($name, $value));
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return '<label for="'.$name.'"'.$options.'>'.$value.'</label>';
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}
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/**
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* Format the label value.
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*
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* @param string $name
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* @param string|null $value
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* @return string
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*/
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protected function formatLabel($name, $value)
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{
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return $value ?: ucwords(str_replace('_', ' ', $name));
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}
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/**
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* Create a form input field.
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*
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* @param string $type
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function input($type, $name, $value = null, $options = array())
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{
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if ( ! isset($options['name'])) $options['name'] = $name;
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// We will get the appropriate value for the given field. We will look for the
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// value in the session for the value in the old input data then we'll look
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// in the model instance if one is set. Otherwise we will just use empty.
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$id = $this->getIdAttribute($name, $options);
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if ( ! in_array($type, $this->skipValueTypes))
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{
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$value = $this->getValueAttribute($name, $value);
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}
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// Once we have the type, value, and ID we can merge them into the rest of the
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// attributes array so we can convert them into their HTML attribute format
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// when creating the HTML element. Then, we will return the entire input.
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$merge = compact('type', 'value', 'id');
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$options = array_merge($options, $merge);
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return '<input'.$this->html->attributes($options).'>';
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}
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/**
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* Create a text input field.
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*
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function text($name, $value = null, $options = array())
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{
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return $this->input('text', $name, $value, $options);
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}
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/**
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* Create a password input field.
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*
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* @param string $name
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* @param array $options
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* @return string
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*/
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public function password($name, $options = array())
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{
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return $this->input('password', $name, '', $options);
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}
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/**
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* Create a hidden input field.
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*
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function hidden($name, $value = null, $options = array())
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{
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return $this->input('hidden', $name, $value, $options);
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}
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/**
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* Create an e-mail input field.
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*
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function email($name, $value = null, $options = array())
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{
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return $this->input('email', $name, $value, $options);
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}
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/**
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* Create a url input field.
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*
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function url($name, $value = null, $options = array())
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{
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return $this->input('url', $name, $value, $options);
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}
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/**
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* Create a file input field.
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*
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* @param string $name
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* @param array $options
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* @return string
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*/
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public function file($name, $options = array())
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{
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return $this->input('file', $name, null, $options);
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}
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/**
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* Create a textarea input field.
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*
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* @param string $name
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* @param string $value
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* @param array $options
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* @return string
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*/
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public function textarea($name, $value = null, $options = array())
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{
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if ( ! isset($options['name'])) $options['name'] = $name;
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// Next we will look for the rows and cols attributes, as each of these are put
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// on the textarea element definition. If they are not present, we will just
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// assume some sane default values for these attributes for the developer.
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$options = $this->setTextAreaSize($options);
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$options['id'] = $this->getIdAttribute($name, $options);
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$value = (string) $this->getValueAttribute($name, $value);
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unset($options['size']);
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// Next we will convert the attributes into a string form. Also we have removed
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// the size attribute, as it was merely a short-cut for the rows and cols on
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// the element. Then we'll create the final textarea elements HTML for us.
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$options = $this->html->attributes($options);
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return '<textarea'.$options.'>'.e($value).'</textarea>';
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}
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/**
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* Set the text area size on the attributes.
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*
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* @param array $options
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* @return array
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*/
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protected function setTextAreaSize($options)
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{
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if (isset($options['size']))
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{
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return $this->setQuickTextAreaSize($options);
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}
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// If the "size" attribute was not specified, we will just look for the regular
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// columns and rows attributes, using sane defaults if these do not exist on
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// the attributes array. We'll then return this entire options array back.
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$cols = array_get($options, 'cols', 50);
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$rows = array_get($options, 'rows', 10);
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return array_merge($options, compact('cols', 'rows'));
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}
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/**
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* Set the text area size using the quick "size" attribute.
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*
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* @param array $options
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* @return array
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*/
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protected function setQuickTextAreaSize($options)
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{
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$segments = explode('x', $options['size']);
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return array_merge($options, array('cols' => $segments[0], 'rows' => $segments[1]));
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}
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/**
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* Create a select box field.
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*
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* @param string $name
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* @param array $list
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* @param string $selected
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* @param array $options
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* @return string
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*/
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public function select($name, $list = array(), $selected = null, $options = array())
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{
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// When building a select box the "value" attribute is really the selected one
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// so we will use that when checking the model or session for a value which
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// should provide a convenient method of re-populating the forms on post.
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$selected = $this->getValueAttribute($name, $selected);
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$options['id'] = $this->getIdAttribute($name, $options);
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if ( ! isset($options['name'])) $options['name'] = $name;
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// We will simply loop through the options and build an HTML value for each of
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// them until we have an array of HTML declarations. Then we will join them
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// all together into one single HTML element that can be put on the form.
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$html = array();
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foreach ($list as $value => $display)
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{
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$html[] = $this->getSelectOption($display, $value, $selected);
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}
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// Once we have all of this HTML, we can join this into a single element after
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// formatting the attributes into an HTML "attributes" string, then we will
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// build out a final select statement, which will contain all the values.
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$options = $this->html->attributes($options);
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$list = implode('', $html);
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return "<select{$options}>{$list}</select>";
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}
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/**
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* Create a select range field.
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*
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* @param string $name
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* @param string $begin
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* @param string $end
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* @param string $selected
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* @param array $options
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* @return string
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*/
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public function selectRange($name, $begin, $end, $selected = null, $options = array())
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{
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$range = array_combine($range = range($begin, $end), $range);
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return $this->select($name, $range, $selected, $options);
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}
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/**
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* Create a select year field.
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*
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* @param string $name
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* @param string $begin
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* @param string $end
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* @param string $selected
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* @param array $options
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* @return string
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*/
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public function selectYear()
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{
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return call_user_func_array(array($this, 'selectRange'), func_get_args());
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}
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/**
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* Create a select month field.
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*
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* @param string $name
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* @param string $selected
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* @param array $options
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* @param string $format
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* @return string
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*/
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public function selectMonth($name, $selected = null, $options = array(), $format = '%B')
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{
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$months = array();
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foreach (range(1, 12) as $month)
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{
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$months[$month] = strftime($format, mktime(0, 0, 0, $month, 1));
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}
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return $this->select($name, $months, $selected, $options);
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}
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/**
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* Get the select option for the given value.
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*
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* @param string $display
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* @param string $value
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* @param string $selected
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* @return string
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*/
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public function getSelectOption($display, $value, $selected)
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{
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if (is_array($display))
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{
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return $this->optionGroup($display, $value, $selected);
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}
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return $this->option($display, $value, $selected);
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}
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/**
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* Create an option group form element.
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*
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* @param array $list
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* @param string $label
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* @param string $selected
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* @return string
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*/
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protected function optionGroup($list, $label, $selected)
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{
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$html = array();
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foreach ($list as $value => $display)
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{
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$html[] = $this->option($display, $value, $selected);
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}
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return '<optgroup label="'.e($label).'">'.implode('', $html).'</optgroup>';
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}
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/**
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* Create a select element option.
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*
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* @param string $display
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* @param string $value
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* @param string $selected
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* @return string
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*/
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protected function option($display, $value, $selected)
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{
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$selected = $this->getSelectedValue($value, $selected);
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$options = array('value' => e($value), 'selected' => $selected);
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return '<option'.$this->html->attributes($options).'>'.e($display).'</option>';
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}
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/**
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* Determine if the value is selected.
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*
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* @param string $value
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* @param string $selected
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* @return string
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*/
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protected function getSelectedValue($value, $selected)
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{
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if (is_array($selected))
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{
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return in_array($value, $selected) ? 'selected' : null;
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}
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return ((string) $value == (string) $selected) ? 'selected' : null;
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}
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/**
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* Create a checkbox input field.
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*
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* @param string $name
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* @param mixed $value
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* @param bool $checked
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* @param array $options
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* @return string
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*/
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public function checkbox($name, $value = 1, $checked = null, $options = array())
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{
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return $this->checkable('checkbox', $name, $value, $checked, $options);
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}
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/**
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* Create a radio button input field.
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*
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* @param string $name
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* @param mixed $value
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* @param bool $checked
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* @param array $options
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* @return string
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*/
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public function radio($name, $value = null, $checked = null, $options = array())
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{
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if (is_null($value)) $value = $name;
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return $this->checkable('radio', $name, $value, $checked, $options);
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}
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/**
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* Create a checkable input field.
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*
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* @param string $type
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* @param string $name
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* @param mixed $value
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* @param bool $checked
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* @param array $options
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* @return string
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*/
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protected function checkable($type, $name, $value, $checked, $options)
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{
|
|
$checked = $this->getCheckedState($type, $name, $value, $checked);
|
|
|
|
if ($checked) $options['checked'] = 'checked';
|
|
|
|
return $this->input($type, $name, $value, $options);
|
|
}
|
|
|
|
/**
|
|
* Get the check state for a checkable input.
|
|
*
|
|
* @param string $type
|
|
* @param string $name
|
|
* @param mixed $value
|
|
* @param bool $checked
|
|
* @return bool
|
|
*/
|
|
protected function getCheckedState($type, $name, $value, $checked)
|
|
{
|
|
switch ($type)
|
|
{
|
|
case 'checkbox':
|
|
return $this->getCheckboxCheckedState($name, $value, $checked);
|
|
|
|
case 'radio':
|
|
return $this->getRadioCheckedState($name, $value, $checked);
|
|
|
|
default:
|
|
return $this->getValueAttribute($name) == $value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the check state for a checkbox input.
|
|
*
|
|
* @param string $name
|
|
* @param mixed $value
|
|
* @param bool $checked
|
|
* @return bool
|
|
*/
|
|
protected function getCheckboxCheckedState($name, $value, $checked)
|
|
{
|
|
if (isset($this->session) && ! $this->oldInputIsEmpty() && is_null($this->old($name))) return false;
|
|
|
|
if ($this->missingOldAndModel($name)) return $checked;
|
|
|
|
$posted = $this->getValueAttribute($name);
|
|
|
|
return is_array($posted) ? in_array($value, $posted) : (bool) $posted;
|
|
}
|
|
|
|
/**
|
|
* Get the check state for a radio input.
|
|
*
|
|
* @param string $name
|
|
* @param mixed $value
|
|
* @param bool $checked
|
|
* @return bool
|
|
*/
|
|
protected function getRadioCheckedState($name, $value, $checked)
|
|
{
|
|
if ($this->missingOldAndModel($name)) return $checked;
|
|
|
|
return $this->getValueAttribute($name) == $value;
|
|
}
|
|
|
|
/**
|
|
* Determine if old input or model input exists for a key.
|
|
*
|
|
* @param string $name
|
|
* @return bool
|
|
*/
|
|
protected function missingOldAndModel($name)
|
|
{
|
|
return (is_null($this->old($name)) && is_null($this->getModelValueAttribute($name)));
|
|
}
|
|
|
|
/**
|
|
* Create a HTML reset input element.
|
|
*
|
|
* @param string $value
|
|
* @param array $attributes
|
|
* @return string
|
|
*/
|
|
public function reset($value, $attributes = array())
|
|
{
|
|
return $this->input('reset', null, $value, $attributes);
|
|
}
|
|
|
|
/**
|
|
* Create a HTML image input element.
|
|
*
|
|
* @param string $url
|
|
* @param string $name
|
|
* @param array $attributes
|
|
* @return string
|
|
*/
|
|
public function image($url, $name = null, $attributes = array())
|
|
{
|
|
$attributes['src'] = $this->url->asset($url);
|
|
|
|
return $this->input('image', $name, null, $attributes);
|
|
}
|
|
|
|
/**
|
|
* Create a submit button element.
|
|
*
|
|
* @param string $value
|
|
* @param array $options
|
|
* @return string
|
|
*/
|
|
public function submit($value = null, $options = array())
|
|
{
|
|
return $this->input('submit', null, $value, $options);
|
|
}
|
|
|
|
/**
|
|
* Create a button element.
|
|
*
|
|
* @param string $value
|
|
* @param array $options
|
|
* @return string
|
|
*/
|
|
public function button($value = null, $options = array())
|
|
{
|
|
if ( ! array_key_exists('type', $options))
|
|
{
|
|
$options['type'] = 'button';
|
|
}
|
|
|
|
return '<button'.$this->html->attributes($options).'>'.$value.'</button>';
|
|
}
|
|
|
|
/**
|
|
* Parse the form action method.
|
|
*
|
|
* @param string $method
|
|
* @return string
|
|
*/
|
|
protected function getMethod($method)
|
|
{
|
|
$method = strtoupper($method);
|
|
|
|
return $method != 'GET' ? 'POST' : $method;
|
|
}
|
|
|
|
/**
|
|
* Get the form action from the options.
|
|
*
|
|
* @param array $options
|
|
* @return string
|
|
*/
|
|
protected function getAction(array $options)
|
|
{
|
|
// We will also check for a "route" or "action" parameter on the array so that
|
|
// developers can easily specify a route or controller action when creating
|
|
// a form providing a convenient interface for creating the form actions.
|
|
if (isset($options['url']))
|
|
{
|
|
return $this->getUrlAction($options['url']);
|
|
}
|
|
|
|
if (isset($options['route']))
|
|
{
|
|
return $this->getRouteAction($options['route']);
|
|
}
|
|
|
|
// If an action is available, we are attempting to open a form to a controller
|
|
// action route. So, we will use the URL generator to get the path to these
|
|
// actions and return them from the method. Otherwise, we'll use current.
|
|
elseif (isset($options['action']))
|
|
{
|
|
return $this->getControllerAction($options['action']);
|
|
}
|
|
|
|
return $this->url->current();
|
|
}
|
|
|
|
/**
|
|
* Get the action for a "url" option.
|
|
*
|
|
* @param array|string $options
|
|
* @return string
|
|
*/
|
|
protected function getUrlAction($options)
|
|
{
|
|
if (is_array($options))
|
|
{
|
|
return $this->url->to($options[0], array_slice($options, 1));
|
|
}
|
|
|
|
return $this->url->to($options);
|
|
}
|
|
|
|
/**
|
|
* Get the action for a "route" option.
|
|
*
|
|
* @param array|string $options
|
|
* @return string
|
|
*/
|
|
protected function getRouteAction($options)
|
|
{
|
|
if (is_array($options))
|
|
{
|
|
return $this->url->route($options[0], array_slice($options, 1));
|
|
}
|
|
|
|
return $this->url->route($options);
|
|
}
|
|
|
|
/**
|
|
* Get the action for an "action" option.
|
|
*
|
|
* @param array|string $options
|
|
* @return string
|
|
*/
|
|
protected function getControllerAction($options)
|
|
{
|
|
if (is_array($options))
|
|
{
|
|
return $this->url->action($options[0], array_slice($options, 1));
|
|
}
|
|
|
|
return $this->url->action($options);
|
|
}
|
|
|
|
/**
|
|
* Get the form appendage for the given method.
|
|
*
|
|
* @param string $method
|
|
* @return string
|
|
*/
|
|
protected function getAppendage($method)
|
|
{
|
|
list($method, $appendage) = array(strtoupper($method), '');
|
|
|
|
// If the HTTP method is in this list of spoofed methods, we will attach the
|
|
// method spoofer hidden input to the form. This allows us to use regular
|
|
// form to initiate PUT and DELETE requests in addition to the typical.
|
|
if (in_array($method, $this->spoofedMethods))
|
|
{
|
|
$appendage .= $this->hidden('_method', $method);
|
|
}
|
|
|
|
// If the method is something other than GET we will go ahead and attach the
|
|
// CSRF token to the form, as this can't hurt and is convenient to simply
|
|
// always have available on every form the developers creates for them.
|
|
if ($method != 'GET')
|
|
{
|
|
$appendage .= $this->token();
|
|
}
|
|
|
|
return $appendage;
|
|
}
|
|
|
|
/**
|
|
* Get the ID attribute for a field name.
|
|
*
|
|
* @param string $name
|
|
* @param array $attributes
|
|
* @return string
|
|
*/
|
|
public function getIdAttribute($name, $attributes)
|
|
{
|
|
if (array_key_exists('id', $attributes))
|
|
{
|
|
return $attributes['id'];
|
|
}
|
|
|
|
if (in_array($name, $this->labels))
|
|
{
|
|
return $name;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the value that should be assigned to the field.
|
|
*
|
|
* @param string $name
|
|
* @param string $value
|
|
* @return string
|
|
*/
|
|
public function getValueAttribute($name, $value = null)
|
|
{
|
|
if (is_null($name)) return $value;
|
|
|
|
if ( ! is_null($this->old($name)))
|
|
{
|
|
return $this->old($name);
|
|
}
|
|
|
|
if ( ! is_null($value)) return $value;
|
|
|
|
if (isset($this->model))
|
|
{
|
|
return $this->getModelValueAttribute($name);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the model value that should be assigned to the field.
|
|
*
|
|
* @param string $name
|
|
* @return string
|
|
*/
|
|
protected function getModelValueAttribute($name)
|
|
{
|
|
if (is_object($this->model))
|
|
{
|
|
return object_get($this->model, $this->transformKey($name));
|
|
}
|
|
elseif (is_array($this->model))
|
|
{
|
|
return array_get($this->model, $this->transformKey($name));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get a value from the session's old input.
|
|
*
|
|
* @param string $name
|
|
* @return string
|
|
*/
|
|
public function old($name)
|
|
{
|
|
if (isset($this->session))
|
|
{
|
|
return $this->session->getOldInput($this->transformKey($name));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine if the old input is empty.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function oldInputIsEmpty()
|
|
{
|
|
return (isset($this->session) && count($this->session->getOldInput()) == 0);
|
|
}
|
|
|
|
/**
|
|
* Transform key from array to dot syntax.
|
|
*
|
|
* @param string $key
|
|
* @return string
|
|
*/
|
|
protected function transformKey($key)
|
|
{
|
|
return str_replace(array('.', '[]', '[', ']'), array('_', '', '.', ''), $key);
|
|
}
|
|
|
|
/**
|
|
* Get the session store implementation.
|
|
*
|
|
* @return \Illuminate\Session\Store $session
|
|
*/
|
|
public function getSessionStore()
|
|
{
|
|
return $this->session;
|
|
}
|
|
|
|
/**
|
|
* Set the session store implementation.
|
|
*
|
|
* @param \Illuminate\Session\Store $session
|
|
* @return $this
|
|
*/
|
|
public function setSessionStore(Session $session)
|
|
{
|
|
$this->session = $session;
|
|
|
|
return $this;
|
|
}
|
|
|
|
}
|