我将此ViewScript用于标准表单元素:
<div class="field" id="field_<?php echo $this->element->getId(); ?>">
<?php if (0 < strlen($this->element->getLabel())) : ?>
<?php echo $this->formLabel($this->element->getName(), $this->element->getLabel());?>
<?php endif; ?>
<span class="value"><?php echo $this->{$this->element->helper}(
$this->element->getName(),
$this->element->getValue(),
$this->element->getAttribs()
) ?></span>
<?php if (0 < $this->element->getMessages()->length) : ?>
<?php echo $this->formErrors($this->element->getMessages()); ?>
<?php endif; ?>
<?php if (0 < strlen($this->element->getDescription())) : ?>
<span class="hint"><?php echo $this->element->getDescription(); ?></span>
<?php endif; ?>
</div>
尝试单独使用ViewScript会导致错误:
表单捕获的异常:没有文件 装饰发现......无法渲染 文件元素
看this FAQ揭示了我的部分问题,并更新了我的表单元素装饰器:
'decorators' => array(
array('File'),
array('ViewScript', array('viewScript' => 'form/field.phtml'))
)
现在它将文件元素渲染两次,一次在我的视图脚本中,以及在视图脚本之外使用文件元素的额外元素:
<input type="hidden" name="MAX_FILE_SIZE" value="8388608" id="MAX_FILE_SIZE" />
<input type="hidden" name="UPLOAD_IDENTIFIER" value="4b5f7335a55ee" id="progress_key" />
<input type="file" name="upload_file" id="upload_file" />
<div class="field" id="field_upload_file">
<label for="upload_file">Upload File</label>
<span class="value"><input type="file" name="upload_file" id="upload_file" /></span>
</div>
有关如何使用ViewScript正确处理此问题的任何想法?
更新:根据Shaun的解决方案,这是我的最终代码:
表格元素:
$this->addElement('file', 'upload_file', array(
'disableLoadDefaultDecorators' => true,
'decorators' => array('File', array('ViewScript', array(
'viewScript' => '_form/file.phtml',
'placement' => false,
))),
'label' => 'Upload',
'required' => false,
'filters' => array(),
'validators' => array(array('Count', false, 1),),
));
查看脚本:
<?php
$class .= 'field ' . strtolower(end(explode('_',$this->element->getType())));
if ($this->element->isRequired()) {
$class .= ' required';
}
if ($this->element->hasErrors()) {
$class .= ' errors';
}
?>
<div class="<?php echo $class; ?>" id="field_<?php echo $this->element->getId(); ?>">
<?php if (0 < strlen($this->element->getLabel())): ?>
<?php echo $this->formLabel($this->element->getFullyQualifiedName(), $this->element->getLabel());?>
<?php endif; ?>
<span class="value"><?php echo $this->content; ?></span>
<?php if ($this->element->hasErrors()): ?>
<?php echo $this->formErrors($this->element->getMessages()); ?>
<?php endif; ?>
<?php if (0 < strlen($this->element->getDescription())): ?>
<p class="hint"><?php echo $this->element->getDescription(); ?></p>
<?php endif; ?>
</div>
答案 0 :(得分:19)
答案相对简单。您所需要做的就是首先指定File decorator,为文件输入创建一个特定的视图脚本,并为viewScript装饰器参数中的位置指定false,这将有效地将File装饰器的输出注入viewScript装饰器,例如
$element->setDecorators(array('File', array('ViewScript', array('viewScript' => 'decorators/file.phtml', 'placement' => false))));
然后在新的文件元素视图脚本中,您只需在脚本中回显$ this-&gt;内容,您希望放置文件输入标记。这是最近一个项目的一个例子,如果看起来有点奇怪,请忽略标记,希望它能说明这一点。
<label for="<?php echo $this->element->getName(); ?>" class="element <?php if ($this->element->hasErrors()): ?> error<?php endif; ?>" id="label_<?php echo $this->element->getName(); ?>">
<span><?php echo $this->element->getLabel(); ?></span>
<?php echo $this->content; ?>
<?php if ($this->element->hasErrors()): ?>
<span class="error">
<?php echo $this->formErrors($this->element->getMessages()); ?>
</span>
<?php endif; ?>
</label>
渲染时,您将看到元素的
<label for="photo" class="element" id="label_photo">
<span>Photo</span>
<input type="hidden" name="MAX_FILE_SIZE" value="6291456" id="MAX_FILE_SIZE">
<input type="file" name="photo" id="photo">
</label>
答案 1 :(得分:4)
这不是一个简单或理想的解决方案,因为它需要File装饰器的扩展......但是他们没有努力将隐藏元素生成逻辑与文件输入生成逻辑分开,这是相当令人沮丧的。我不确定文件视图助手是否处理元素作为数组的问题(这似乎是他们这样做的原因。)
文件装饰器的扩展: (注释掉的部分是导致生成额外输入的原因。)
<?php
class Sys_Form_Decorator_File extends Zend_Form_Decorator_File {
public function render($content) {
$element = $this->getElement();
if (!$element instanceof Zend_Form_Element) {return $content;}
$view = $element->getView();
if (!$view instanceof Zend_View_Interface) {return $content;}
$name = $element->getName();
$attribs = $this->getAttribs();
if (!array_key_exists('id', $attribs)) {$attribs['id'] = $name;}
$separator = $this->getSeparator();
$placement = $this->getPlacement();
$markup = array();
$size = $element->getMaxFileSize();
if ($size > 0) {
$element->setMaxFileSize(0);
$markup[] = $view->formHidden('MAX_FILE_SIZE', $size);
}
if (Zend_File_Transfer_Adapter_Http::isApcAvailable()) {
$apcAttribs = array('id' => 'progress_key');
$markup[] = $view->formHidden('APC_UPLOAD_PROGRESS', uniqid(), $apcAttribs);
}
else if (Zend_File_Transfer_Adapter_Http::isUploadProgressAvailable()) {
$uploadIdAttribs = array('id' => 'progress_key');
$markup[] = $view->formHidden('UPLOAD_IDENTIFIER', uniqid(), $uploadIdAttribs);
}
/*
if ($element->isArray()) {
$name .= "[]";
$count = $element->getMultiFile();
for ($i = 0; $i < $count; ++$i) {
$htmlAttribs = $attribs;
$htmlAttribs['id'] .= '-' . $i;
$markup[] = $view->formFile($name, $htmlAttribs);
}
}
else {$markup[] = $view->formFile($name, $attribs);}
*/
$markup = implode($separator, $markup);
switch ($placement) {
case self::PREPEND: return $markup . $separator . $content;
case self::APPEND:
default: return $content . $separator . $markup;
}
}
}
?>
控制器操作中的表单设置:
$form = new Zend_Form();
$form->addElement(new Zend_Form_Element_File('file'));
$form->file->setLabel('File');
$form->file->setDescription('Description goes here.');
$decorators = array();
$decorators[] = array('File' => new Sys_Form_Decorator_File());
$decorators[] = array('ViewScript', array('viewScript' => '_formElementFile.phtml'));
$form->file->setDecorators($decorators);
$this->view->form = $form;
在行动视图中:
<?php echo $this->form; ?>
在元素脚本中:
<div class="field" id="field_<?php echo $this->element->getId(); ?>">
<?php if (0 < strlen($this->element->getLabel())) : ?>
<?php echo $this->formLabel($this->element->getName(), $this->element->getLabel());?>
<?php endif; ?>
<span class="value">
<?php
echo $this->{$this->element->helper}(
$this->element->getName(),
$this->element->getValue(),
$this->element->getAttribs()
);
?>
</span>
<?php if (0 < $this->element->getMessages()->length) : ?>
<?php echo $this->formErrors($this->element->getMessages()); ?>
<?php endif; ?>
<?php if (0 < strlen($this->element->getDescription())) : ?>
<span class="hint"><?php echo $this->element->getDescription(); ?></span>
<?php endif; ?>
</div>
输出应为:
<form enctype="multipart/form-data" action="" method="post">
<dl class="zend_form">
<input type="hidden" name="MAX_FILE_SIZE" value="134217728" id="MAX_FILE_SIZE" />
<div class="field" id="field_file">
<label for="file">File</label>
<span class="value"><input type="file" name="file" id="file" /></span>
<span class="hint">Description goes here.</span>
</div>
</dl>
</form>
此解决方案的一个问题是隐藏的元素不会在视图中呈现;如果你在客户端脚本中使用div作为选择器,这可能是一个问题......
答案 2 :(得分:2)
我意识到,自定义装饰器类将处理除文件字段之外的大多数字段。 确保您的类实现了如下界面:
class CC_Form_Decorator_Pattern
extends Zend_Form_Decorator_Abstract
implements Zend_Form_Decorator_Marker_File_Interface
这对我有用。
答案 3 :(得分:1)
这有助于我解决我的问题。我调整了代码以将文件元素包装在表中。要使其工作,只需从viewdecorator中删除标签,然后按如下方式添加文件元素:
$form->addElement('file', 'upload_file', array(
'disableLoadDefaultDecorators' => true,
'decorators' => array(
'Label',
array(array('labelTd' => 'HtmlTag'), array('tag' => 'td', 'class' => 'labelElement')),
array(array('elemTdOpen' => 'HtmlTag'), array('tag' => 'td', 'class' => 'dataElement','openOnly' => true, 'placement' => 'append')),
'File',
array('ViewScript', array(
'viewScript' => 'decorators/file.phtml',
'placement' => false,
)),
array(array('elemTdClose' => 'HtmlTag'), array('tag' => 'td', 'closeOnly' => true, 'placement' => 'append')),
array(array('row' => 'HtmlTag'), array('tag' => 'tr'))
),
'label' => 'Upload',
'required' => false,
'filters' => array(),
'validators' => array(array('Count', false, 1), ),
));
答案 4 :(得分:0)
我找到了一种可以完全避免使用ViewScript的解决方法。
首先,元素定义:
$this->addElement('file', 'upload_file', array(
'disableLoadDefaultDecorators' => true,
'decorators' => array(
'File',
array(array('Value'=>'HtmlTag'), array('tag'=>'span','class'=>'value')),
'Errors',
'Description',
'Label',
array(array('Field'=>'HtmlTag'), array('tag'=>'div','class'=>'field file')),
),
'label' => 'Upload File',
'required' => false,
'filters' => array('StringTrim'),
'validators' => array(),
));
其次,在实例化表单类之后,我模仿了我的ViewScript的行为:
$field = $form->getElement('upload_file');
$decorator = $field->getDecorator('Field');
$options = $decorator->getOptions();
$options['id'] = 'field_' . $field->getId();
if ($field->hasErrors()) {
$options['class'] .= ' errors';
}
$decorator->setOptions($options);
我想我应该研究基于类的装饰器。也许那里有更多的灵活性?
答案 5 :(得分:0)
最简单的方法是在自定义文件修饰器的输出中根本不添加任何标记:
class Custom_Form_Decorator_File extends Zend_Form_Decorator_File { public function render($content) { return $content; } }
现在,您可以在视图中为此文件元素执行任何操作(输出文件输入字段以及您自己需要的所有隐藏字段)。
答案 6 :(得分:0)
万一你跟随@ Shaun的回答并且你仍然得到错误:确保你已经为相关元素禁用默认装饰器(请看第2行):
$this->addElement('file', 'upload_file', array(
'disableLoadDefaultDecorators' => true,
'decorators' => array('File', array('ViewScript', array(
'viewScript' => '_form/file.phtml',
'placement' => false,
))),
'label' => 'Upload',
'required' => false,
'filters' => array(),
'validators' => array(array('Count', false, 1),),
));