Question

我有一张有效的表格。我创建了一个新的表单元素，它是日期的多选字段。它将日，月和年组合成一个表单元素，如下所示：

表格项目：

$this->addElement('date', 'new_date', array(
    'label'         => 'Expires as New on?'
));

表格元素：

<?php

require_once 'Zend/Form/Element/Multi.php';

class Zend_Form_Element_Date extends Zend_Form_Element_Multi
{
    public $helper = 'formDate';
    protected $_registerInArrayValidator = false;

    private $data;

    public function isValid ($data) {
        $this->data=$data;
        return true;
    }

    public function getValue () {
         return $this->data[2].'-'.$this->data[0].'-'.$this->data[1];
    }
}

助手元素：

<?php

require_once 'Zend/View/Helper/FormElement.php';

class Zend_View_Helper_FormDate extends Zend_View_Helper_FormElement
{

    public function formDate($name, $value = null, $attribs = null,
        $options = null, $listsep = "<br />\n")
    {


        $info = $this->_getInfo($name, $value, $attribs, $options, $listsep);
        extract($info); // name, id, value, attribs, options, listsep, disable


        // force $value to array so we can compare multiple values
        // to multiple options.

        $value = array_map('strval', (array) $value);
        //Zend_Debug::dump($value);
        $olddata = explode("-",$value[0]);  
        //Zend_Debug::dump($olddata);   

        // check if element may have multiple values
        $multiple = '';

        if (substr($name, -2) == '[]') {
            // multiple implied by the name
            $multiple = ' multiple="multiple"';
        }

        if (isset($attribs['multiple'])) {
            // Attribute set
            if ($attribs['multiple']) {
                // True attribute; set multiple attribute
                $multiple = ' multiple="multiple"';

                // Make sure name indicates multiple values are allowed
                if (!empty($multiple) && (substr($name, -2) != '[]')) {
                    $name .= '[]';
                }
            } else {
                // False attribute; ensure attribute not set
                $multiple = '';
            }
            unset($attribs['multiple']);
        } 

        // now start building the XHTML.
        $disabled = '';
        if (true === $disable) {
            $disabled = ' disabled="disabled"';
        }

        // Build the surrounding select element first.
        $xhtml = '<select'
                . ' name="' . $this->view->escape($name) . '[]"'
                . ' id="' . $this->view->escape($id) . '"'
                . $multiple
                . $disabled
                . $this->_htmlAttribs($attribs)
                . ">\n    ";

        // build the list of options

        // month
        $month = array();

        $month[] = $this->_build('MM', 'MM');

        for($i = 1; $i<= 12; $i++){
            $m = date("M", mktime(0,0,0,$i));
            $month[] = $this->_build($i<10?'0'.$i:$i, $m, $olddata[1]);
        }

        $day = array();

        $day[] = $this->_build('DD', 'DD');
        for($i = 1; $i<=31; $i++){
            $day[] = $this->_build($i<10?'0'.$i:$i, $i<10?'0'.$i:$i, $olddata[2]);
        }

        $year = array();

        $year[] = $this->_build('YYYY','YYYY');

        for($i = (int)date("Y"); $i < (int)date("Y")+11; $i++){
            $year[] = $this->_build($i, $i, $olddata[0]);
        }

        // add the options to the xhtml and close the select
        $month = $xhtml.implode("\n    ", $month) . "\n</select>";
        $day = $xhtml.implode("\n    ", $day) . "\n</select>";
        $year = $xhtml.implode("\n    ", $year) . "\n</select>";

        return $month.$day.$year;
    }

    protected function _build($value, $label, $selected)
    {

        $opt = '<option'
             . ' value="' . $this->view->escape($value) . '"'
             . ' label="' . $this->view->escape($label) . '"';

       if ($value == $selected) {
            $opt .= ' selected="selected"';
        }

        $opt .= '>' . $this->view->escape($label). "</option>";

        return $opt;
    }

}

我已经能够将此表单元素中的数据保存到数据库中。然而，当我尝试加载表单时，所有表单元素都接收除我的自定义表单元素之外的数据库值。任何人都可以指导我做错的事吗？

Answer 1

从我所看到的，在您的Zend_View_Helper_FormDate::_build($value, $label, $selected)中，您有第3个参数，用于将selected="selected"添加到您的HTML中，但在您的formDate方法中，您只能传递前2个参数，即。 $this->_build('MM', 'MM');

您必须传递第3个参数中的值。此外，为自定义元素使用Zend命名空间为-10分。这是一个很大的禁忌。：P

修改

替换帮手：

$value = array_map('strval', (array) $value); //Zend_Debug::dump($value); $olddata = explode("-",$value[0]); //Zend_Debug::dump($olddata);

使用：

if ( !empty($value)) { $value = array_map('strval', (array) $value); $olddata = explode("-",$value[0]); } else { $olddata = array('','',''); }

然后

protected function _build($value, $label, $selected)

使用：

protected function _build($value, $label, $selected = null)

添加到您的自定义元素：

public function setValue($value) { /** Assuming format Y-m-d and need m-d-Y**/ list($year,$month,$day) = explode('-', $value); $this->data = array($month,$day,$year); // Almost forgot return $this; }

注意：只是在嘲笑Zend命名空间。

获取Zend中自定义选择表单字段的数据库字段

1 个答案: