Question

我在应用程序中添加了cakePHP标记功能。我有一个名为项目的表，可以关联许多标签。所以我有一个带有id和tag varchar字段的标签表。带有标签varchar字段的项目表，以及具有id，tag_id和project_id字段的链接表projects_tags。当我将标签输入添加到我的视图时，由于某种原因，存在的标签会在下拉框中填充。任何人都可以弄明白我在这里做错了吗？

这是我的标签模型：

<?php
class ProjectTag extends AppModel {
var $name = 'ProjectTag';


var $hasAndBelongsToMany = array('Tag' => 
                           array('className'    => 'Tag', 
                                 'joinTable'    => 'tags', 
                                 'foreignKey'   => 'tag_id', 
                                 'conditions'   => '', 
                                 'order'        => '', 
                                 'limit'        => '', 
                                 'unique'       => true, 
                                 'finderQuery'  => '', 
                                 'deleteQuery'  => '', 
                           ),
                           array('className'    => 'Project', 
                                 'joinTable'    => 'projects', 
                                 'foreignKey'   => 'project_id', 
                                 'conditions'   => '', 
                                 'order'        => '', 
                                 'limit'        => '', 
                                 'unique'       => true, 
                                 'finderQuery'  => '', 
                                 'deleteQuery'  => '', 
                           )

                           );

}

?>

这是我的添加项目视图add.ctp：

<?php
echo $form->create('Project');
echo $form->input('title', array('label' => 'Title'));
echo $form->input('website', array('label' => 'Website'));
echo $form->input('description', array('label' => 'Description'));
echo $form->input('language_id', array('label' => 'Language'));
echo $form->input('tags');
echo $form->end('Post project');
?>

以下是标记行为模型：

<?php

class TagBehavior extends ModelBehavior {
/**
 * Initiate behaviour for the model using specified settings.
 *
 * @param object $model    Model using the behaviour
 * @param array $settings    Settings to override for model.
 *
 * @access public
 */
function setup(&$model, $settings = array()) {


    $default = array( 'table_label' => 'tags', 'tag_label' => 'tag', 'separator' => ',');

    if (!isset($this->settings[$model->name])) {
        $this->settings[$model->name] = $default;
    }

$this->settings[$model->name] = array_merge($this->settings[$model->name], ife(is_array($settings), $settings, array()));

}

/**
 * Run before a model is saved, used to set up tag for model.
 *
 * @param object $model    Model about to be saved.
 *
 * @access public
 * @since 1.0
 */
function beforeSave(&$model) {
// Define the new tag model
$Tag =& new Tag;
    if ($model->hasField($this->settings[$model->name]['table_label']) 
    && $Tag->hasField($this->settings[$model->name]['tag_label'])) {


    // Parse out all of the 
    $tag_list = $this->_parseTag($model->data[$model->name][$this->settings[$model->name]['table_label']], $this->settings[$model->name]);
    $tag_info = array(); // New tag array to store tag id and names from db
    foreach($tag_list as $t) {
        if ($res = $Tag->find($this->settings[$model->name]['tag_label'] . " LIKE '" . $t . "'")) {
            $tag_info[] = $res['Tag']['id'];
        } else {
            $Tag->save(array('id'=>'',$this->settings[$model->name]['tag_label']=>$t));
            $tag_info[] = sprintf($Tag->getLastInsertID());
        }
        unset($res);
    }

    // This prepares the linking table data...
    $model->data['Tag']['Tag'] = $tag_info;
    // This formats the tags field before save...
    $model->data[$model->name][$this->settings[$model->name]['table_label']] = implode(', ', $tag_list);
}
return true;
}


/**
 * Parse the tag string and return a properly formatted array
 *
 * @param string $string    String.
 * @param array $settings    Settings to use (looks for 'separator' and 'length')
 *
 * @return string    Tag for given string.
 *
 * @access private
 */
function _parseTag($string, $settings) {
    $string = strtolower($string);

    $string = preg_replace('/[^a-z0-9' . $settings['separator'] . ' ]/i', '', $string);
    $string = preg_replace('/' . $settings['separator'] . '[' . $settings['separator'] . ']*/', $settings['separator'], $string);

$string_array = preg_split('/' . $settings['separator'] . '/', $string);
$return_array = array();

foreach($string_array as $t) {
    $t = ucwords(trim($t));
    if (strlen($t)>0) {
        $return_array[] = $t;
    }
}

    return $return_array;
}
}

?>

这是我的project_controller add：

function add() {


    $this->set("Languages", $this->Project->Language->find("list"));


    if (!empty($this->data)) {
        if ($this->Project->save($this->data)) {
            $this->Session->setFlash('Project added.');
            $this->redirect(array('action' => 'index'));
        }
    }
}

Answer 1

这是因为模型中的关系。 CakePHP将自动关联标签并为您创建下拉列表。这是拥有相关领域的目的。它基本上是在说，“这个标签需要存在于这个'标签'表中。”因此，它会使用标签中的数据预先填充它。

取出HABTM关系，它将返回测试盒。

Answer 2

cdburgess关于下拉列表出现的原因是正确的，但您可以通过调整Cake“magic”字段来覆盖合理的默认值以满足您自己的需求：

echo $form->input('tags', array( 'type' => 'text' ) );

我不会发誓语法，但这会将标签输入创建为文本框。

IMO，这是一个比在其他地方放弃拥有如此强大力量的协会更好的选择。

CakePHP输入是错误的输入类型。应该是文本字段但是是下拉列表：S

2 个答案: