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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\widgets;
use yii\base\Component;
use yii\db\ActiveRecord;
use yii\helpers\Html;
use yii\base\Model;
use yii\helpers\JsExpression;
/**
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class ActiveField extends Component
{
/**
* @var ActiveForm the form that this field is associated with.
*/
public $form;
/**
* @var Model the data model that this field is associated with
*/
public $model;
/**
* @var string the model attribute that this field is associated with
*/
public $attribute;
/**
* @var string the tag name for the field container.
*/
public $tag = 'div';
/**
* @var array the HTML attributes (name-value pairs) for the field container tag.
* The values will be HTML-encoded using [[Html::encode()]].
* If a value is null, the corresponding attribute will not be rendered.
*/
public $options = array(
'class' => 'control-group',
);
/**
* @var string the template that is used to arrange the label, the input and the error message.
* The following tokens will be replaced when [[render()]] is called: `{label}`, `{input}` and `{error}`.
*/
public $template = "{label}\n<div class=\"controls\">\n{input}\n{error}\n</div>";
/**
* @var array the default options for the error message. This property is used when calling [[error()]]
* without the `$options` parameter.
*/
public $errorOptions = array('tag' => 'span', 'class' => 'help-inline');
/**
* @var array the default options for the label. This property is used when calling [[label()]]
* without the `$options` parameter.
*/
public $labelOptions = array('class' => 'control-label');
/**
* @var boolean whether to enable client-side data validation.
* If not set, it will take the value of [[ActiveForm::enableClientValidation]].
*/
public $enableClientValidation;
/**
* @var boolean whether to enable AJAX-based data validation.
* If not set, it will take the value of [[ActiveForm::enableAjaxValidation]].
*/
public $enableAjaxValidation;
/**
* @var boolean whether to perform validation when the input field loses focus and its value is found changed.
* If not set, it will take the value of [[ActiveForm::validateOnChange]].
*/
public $validateOnChange;
/**
* @var boolean whether to perform validation while the user is typing in the input field.
* If not set, it will take the value of [[ActiveForm::validateOnType]].
* @see validationDelay
*/
public $validateOnType;
/**
* @var integer number of milliseconds that the validation should be delayed when the input field
* is changed or the user types in the field.
* If not set, it will take the value of [[ActiveForm::validationDelay]].
*/
public $validationDelay;
/**
* @var JsExpression|string a [[JsExpression]] object or a JavaScript expression string representing
* the callback that will be invoked BEFORE validating the attribute associated with this field on the client side.
*
* This callback is called after [[ActiveForm::beforeValidateAttribute]].
*
* The signature of the callback should be like the following:
*
* ~~~
* ~~~
*/
public $beforeValidate;
/**
* @var JsExpression|string a [[JsExpression]] object or a JavaScript expression string representing
* the callback that will be invoked AFTER validating the attribute associated with this field on the client side.
*
* This callback is called before [[ActiveForm::afterValidateAttribute]].
*
* The signature of the callback should be like the following:
*
* ~~~
* ~~~
*/
public $afterValidate;
/**
* @var array the jQuery selectors for selecting the container, input and error tags.
* The array keys should be "container", "input", and/or "error", and the array values
* are the corresponding selectors. For example, `array('input' => '#my-input')`.
*
* The selectors are used under the context of the form.
*
* You normally do not need to set this property as the default selectors should work well for most cases.
*/
public $selectors;
public function begin()
{
$options = $this->getClientOptions();
if ($options !== array()) {
$this->form->attributes[$this->attribute] = $options;
}
$inputID = Html::getInputId($this->model, $this->attribute);
$attribute = Html::getAttributeName($this->attribute);
$options = $this->options;
$class = isset($options['class']) ? array($options['class']) : array();
$class[] = "field-$inputID";
if ($this->model->isAttributeRequired($attribute)) {
$class[] = $this->form->requiredCssClass;
}
if ($this->model->hasErrors($attribute)) {
$class[] = $this->form->errorCssClass;
}
$options['class'] = implode(' ', $class);
return Html::beginTag($this->tag, $options);
}
public function end()
{
return Html::endTag($this->tag);
}
protected function getClientOptions()
{
if ($this->enableClientValidation || $this->enableClientValidation === null && $this->form->enableClientValidation) {
$attribute = Html::getAttributeName($this->attribute);
$validators = array();
foreach ($this->model->getActiveValidators($attribute) as $validator) {
/** @var \yii\validators\Validator $validator */
$js = $validator->clientValidateAttribute($this->model, $attribute);
if ($validator->enableClientValidation && $js != '') {
$validators[] = $js;
}
}
if ($validators !== array()) {
$options['validate'] = new JsExpression("function(attribute,value,messages){" . implode('', $validators) . '}');
}
}
if ($this->enableAjaxValidation || $this->enableAjaxValidation === null && $this->form->enableAjaxValidation) {
$options['enableAjaxValidation'] = 1;
}
if (isset($options['validate']) || isset($options['enableAjaxValidation'])) {
$inputID = Html::getInputId($this->model, $this->attribute);
$options['name'] = $inputID;
if ($this->model instanceof ActiveRecord && !$this->model->getIsNewRecord()) {
$option['status'] = 1;
}
$names = array(
'enableAjaxValidation',
'validateOnChange',
'validateOnType',
'validationDelay',
);
foreach ($names as $name) {
$options[$name] = $this->$name === null ? $this->form->$name : $this->$name;
}
$options['container'] = isset($this->selectors['container']) ? $this->selectors['container'] : ".field-$inputID";
$options['input'] = isset($this->selectors['input']) ? $this->selectors['input'] : "#$inputID";
if (isset($this->errorOptions['class'])) {
$options['error'] = '.' . implode('.', preg_split('/\s+/', $this->errorOptions['class'], -1, PREG_SPLIT_NO_EMPTY));
} else {
$options['error'] = isset($this->errorOptions['tag']) ? $this->errorOptions['tag'] : 'span';
}
foreach (array('beforeValidate', 'afterValidate') as $callback) {
$value = $this->$callback;
if ($value instanceof JsExpression) {
$options[$callback] = $value;
} elseif (is_string($value)) {
$options[$callback] = new JsExpression($value);
}
}
return $options;
} else {
return array();
}
}
/**
* Generates a label tag for [[attribute]].
* The label text is the label associated with the attribute, obtained via [[Model::getAttributeLabel()]].
* @param array $options the tag options in terms of name-value pairs. If this is null, [[labelOptions]] will be used.
* The options will be rendered as the attributes of the resulting tag. The values will be HTML-encoded
* using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
*
* The following options are specially handled:
*
* - label: this specifies the label to be displayed. Note that this will NOT be [[encoded()]].
* If this is not set, [[Model::getAttributeLabel()]] will be called to get the label for display
* (after encoding).
*
* @return string the generated label tag
*/
public function label($options = null)
{
if ($options === null) {
$options = $this->labelOptions;
}
return Html::activeLabel($this->model, $this->attribute, $options);
}
/**
* Generates a tag that contains the first validation error of [[attribute]].
* Note that even if there is no validation error, this method will still return an empty error tag.
* @param array $options the tag options in terms of name-value pairs. If this is null, [[errorOptions]] will be used.
* The options will be rendered as the attributes of the resulting tag. The values will be HTML-encoded
* using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
*
* The following options are specially handled:
*
* - tag: this specifies the tag name. If not set, "span" will be used.
*
* @return string the generated label tag
*/
public function error($options = null)
{
if ($options === null) {
$options = $this->errorOptions;
}
$attribute = Html::getAttributeName($this->attribute);
$error = $this->model->getFirstError($attribute);
$tag = isset($options['tag']) ? $options['tag'] : 'span';
unset($options['tag']);
return Html::tag($tag, Html::encode($error), $options);
}
/**
* Renders the field with the given input HTML.
* This method will generate the label and error tags, and return them together with the given
* input HTML according to [[template]].
* @param string $input the input HTML
* @return string the rendering result
*/
public function render($input)
{
return $this->begin() . "\n" . strtr($this->template, array(
'{input}' => $input,
'{label}' => $this->label(),
'{error}' => $this->error(),
)) . "\n" . $this->end();
}
/**
* Generates an input tag for the given model attribute.
* @param string $type the input type (e.g. 'text', 'password')
* @param array $options the tag options in terms of name-value pairs. These will be rendered as
* the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
* @return string the generated input tag
*/
public function input($type, $options = array())
{
return $this->render(Html::activeInput($type, $this->model, $this->attribute, $options));
}
/**
* Generates a text input tag for the given model attribute.
* This method will generate the "name" and "value" tag attributes automatically for the model attribute
* unless they are explicitly specified in `$options`.
* @param array $options the tag options in terms of name-value pairs. These will be rendered as
* the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
* @return string the generated input tag
*/
public function textInput($options = array())
{
return $this->render(Html::activeTextInput($this->model, $this->attribute, $options));
}
/**
* Generates a hidden input tag for the given model attribute.
* This method will generate the "name" and "value" tag attributes automatically for the model attribute
* unless they are explicitly specified in `$options`.
* @param array $options the tag options in terms of name-value pairs. These will be rendered as
* the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
* @return string the generated input tag
*/
public function hiddenInput($options = array())
{
return $this->render(Html::activeHiddenInput($this->model, $this->attribute, $options));
}
/**
* Generates a password input tag for the given model attribute.
* This method will generate the "name" and "value" tag attributes automatically for the model attribute
* unless they are explicitly specified in `$options`.
* @param array $options the tag options in terms of name-value pairs. These will be rendered as
* the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
* @return string the generated input tag
*/
public function passwordInput($options = array())
{
return $this->render(Html::activePasswordInput($this->model, $this->attribute, $options));
}
/**
* Generates a file input tag for the given model attribute.
* This method will generate the "name" and "value" tag attributes automatically for the model attribute
* unless they are explicitly specified in `$options`.
* @param array $options the tag options in terms of name-value pairs. These will be rendered as
* the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
* @return string the generated input tag
*/
public function fileInput($options = array())
{
return $this->render(Html::activeFileInput($this->model, $this->attribute, $options));
}
/**
* Generates a textarea tag for the given model attribute.
* The model attribute value will be used as the content in the textarea.
* @param array $options the tag options in terms of name-value pairs. These will be rendered as
* the attributes of the resulting tag. The values will be HTML-encoded using [[encode()]].
* @return string the generated textarea tag
*/
public function textarea($options = array())
{
return $this->render(Html::activeTextarea($this->model, $this->attribute, $options));
}
/**
* Generates a radio button tag for the given model attribute.
* This method will generate the "name" tag attribute automatically unless it is explicitly specified in `$options`.
* This method will generate the "checked" tag attribute according to the model attribute value.
* @param array $options the tag options in terms of name-value pairs. The following options are specially handled:
*
* - uncheck: string, the value associated with the uncheck state of the radio button. If not set,
* it will take the default value '0'. This method will render a hidden input so that if the radio button
* is not checked and is submitted, the value of this attribute will still be submitted to the server
* via the hidden input.
*
* The rest of the options will be rendered as the attributes of the resulting tag. The values will
* be HTML-encoded using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
* @return string the generated radio button tag
*/
public function radio($options = array())
{
return $this->render(Html::activeRadio($this->model, $this->attribute, $options));
}
/**
* Generates a checkbox tag for the given model attribute.
* This method will generate the "name" tag attribute automatically unless it is explicitly specified in `$options`.
* This method will generate the "checked" tag attribute according to the model attribute value.
* @param array $options the tag options in terms of name-value pairs. The following options are specially handled:
*
* - uncheck: string, the value associated with the uncheck state of the radio button. If not set,
* it will take the default value '0'. This method will render a hidden input so that if the radio button
* is not checked and is submitted, the value of this attribute will still be submitted to the server
* via the hidden input.
*
* The rest of the options will be rendered as the attributes of the resulting tag. The values will
* be HTML-encoded using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
* @return string the generated checkbox tag
*/
public function checkbox($options = array())
{
return $this->render(Html::activeCheckbox($this->model, $this->attribute, $options));
}
/**
* Generates a drop-down list for the given model attribute.
* The selection of the drop-down list is taken from the value of the model attribute.
* @param array $items the option data items. The array keys are option values, and the array values
* are the corresponding option labels. The array can also be nested (i.e. some array values are arrays too).
* For each sub-array, an option group will be generated whose label is the key associated with the sub-array.
* If you have a list of data models, you may convert them into the format described above using
* [[\yii\helpers\ArrayHelper::map()]].
*
* Note, the values and labels will be automatically HTML-encoded by this method, and the blank spaces in
* the labels will also be HTML-encoded.
* @param array $options the tag options in terms of name-value pairs. The following options are specially handled:
*
* - prompt: string, a prompt text to be displayed as the first option;
* - options: array, the attributes for the select option tags. The array keys must be valid option values,
* and the array values are the extra attributes for the corresponding option tags. For example,
*
* ~~~
* array(
* 'value1' => array('disabled' => true),
* 'value2' => array('label' => 'value 2'),
* );
* ~~~
*
* - groups: array, the attributes for the optgroup tags. The structure of this is similar to that of 'options',
* except that the array keys represent the optgroup labels specified in $items.
*
* The rest of the options will be rendered as the attributes of the resulting tag. The values will
* be HTML-encoded using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
*
* @return string the generated drop-down list tag
*/
public function dropDownList($items, $options = array())
{
return $this->render(Html::activeDropDownList($this->model, $this->attribute, $items, $options));
}
/**
* Generates a list box.
* The selection of the list box is taken from the value of the model attribute.
* @param array $items the option data items. The array keys are option values, and the array values
* are the corresponding option labels. The array can also be nested (i.e. some array values are arrays too).
* For each sub-array, an option group will be generated whose label is the key associated with the sub-array.
* If you have a list of data models, you may convert them into the format described above using
* [[\yii\helpers\ArrayHelper::map()]].
*
* Note, the values and labels will be automatically HTML-encoded by this method, and the blank spaces in
* the labels will also be HTML-encoded.
* @param array $options the tag options in terms of name-value pairs. The following options are specially handled:
*
* - prompt: string, a prompt text to be displayed as the first option;
* - options: array, the attributes for the select option tags. The array keys must be valid option values,
* and the array values are the extra attributes for the corresponding option tags. For example,
*
* ~~~
* array(
* 'value1' => array('disabled' => true),
* 'value2' => array('label' => 'value 2'),
* );
* ~~~
*
* - groups: array, the attributes for the optgroup tags. The structure of this is similar to that of 'options',
* except that the array keys represent the optgroup labels specified in $items.
* - unselect: string, the value that will be submitted when no option is selected.
* When this attribute is set, a hidden field will be generated so that if no option is selected in multiple
* mode, we can still obtain the posted unselect value.
*
* The rest of the options will be rendered as the attributes of the resulting tag. The values will
* be HTML-encoded using [[encode()]]. If a value is null, the corresponding attribute will not be rendered.
*
* @return string the generated list box tag
*/
public function listBox($items, $options = array())
{
return $this->render(Html::activeListBox($this->model, $this->attribute, $items, $options));
}
/**
* Generates a list of checkboxes.
* A checkbox list allows multiple selection, like [[listBox()]].
* As a result, the corresponding submitted value is an array.
* The selection of the checkbox list is taken from the value of the model attribute.
* @param array $items the data item used to generate the checkboxes.
* The array keys are the labels, while the array values are the corresponding checkbox values.
* Note that the labels will NOT be HTML-encoded, while the values will.
* @param array $options options (name => config) for the checkbox list. The following options are specially handled:
*
* - unselect: string, the value that should be submitted when none of the checkboxes is selected.
* By setting this option, a hidden input will be generated.
* - separator: string, the HTML code that separates items.
* - item: callable, a callback that can be used to customize the generation of the HTML code
* corresponding to a single item in $items. The signature of this callback must be:
*
* ~~~
* function ($index, $label, $name, $checked, $value)
* ~~~
*
* where $index is the zero-based index of the checkbox in the whole list; $label
* is the label for the checkbox; and $name, $value and $checked represent the name,
* value and the checked status of the checkbox input.
* @return string the generated checkbox list
*/
public function checkboxList($items, $options = array())
{
return $this->render(
'<div id="' . Html::getInputId($this->model, $this->attribute) . '">'
. Html::activeCheckboxList($this->model, $this->attribute, $items, $options)
. '</div>'
);
}
/**
* Generates a list of radio buttons.
* A radio button list is like a checkbox list, except that it only allows single selection.
* The selection of the radio buttons is taken from the value of the model attribute.
* @param array $items the data item used to generate the radio buttons.
* The array keys are the labels, while the array values are the corresponding radio button values.
* Note that the labels will NOT be HTML-encoded, while the values will.
* @param array $options options (name => config) for the radio button list. The following options are specially handled:
*
* - unselect: string, the value that should be submitted when none of the radio buttons is selected.
* By setting this option, a hidden input will be generated.
* - separator: string, the HTML code that separates items.
* - item: callable, a callback that can be used to customize the generation of the HTML code
* corresponding to a single item in $items. The signature of this callback must be:
*
* ~~~
* function ($index, $label, $name, $checked, $value)
* ~~~
*
* where $index is the zero-based index of the radio button in the whole list; $label
* is the label for the radio button; and $name, $value and $checked represent the name,
* value and the checked status of the radio button input.
* @return string the generated radio button list
*/
public function radioList($items, $options = array())
{
return $this->render(
'<div id="' . Html::getInputId($this->model, $this->attribute) . '">'
. Html::activeRadioList($this->model, $this->attribute, $items, $options)
. '</div>'
);
}
}