如何编辑 wordpress 插件 .php 文件

Question

我在我的网站上安装了 Front-End Publishing 插件，它会显示以下菜单： FEP menu

• 我想从菜单中删除“标签”和“选择特色图片”选项。
• 由于我希望用户为帖子内容上传媒体，我还想阻止用户在内容框中输入单词。

这是插件的submission-form.php 我必须编辑什么代码来实现这个？ （我尝试将所有代码都放入代码格式但部分代码拒绝放入代码示例框中）

<?php
$post       = false;
$post_id    = -1;
$featured_img_html = '';
if( isset($_GET['fep_id']) && isset($_GET['fep_action']) && $_GET['fep_action'] == 'edit' ){
    $post_id            = $_GET['fep_id'];
    $p                  = get_post($post_id, 'ARRAY_A');
    if($p['post_author'] != $current_user->ID) return 'You don\'t have permission to edit this post';
    $category           = get_the_category($post_id);
    $tags               = wp_get_post_tags( $post_id, array( 'fields' => 'names' ) );
    $featured_img       = get_post_thumbnail_id( $post_id );
    $featured_img_html  = (!empty($featured_img))?wp_get_attachment_image( $featured_img, array(200,200) ):'';
    $post               = array(
                            'title'             => $p['post_title'],
                            'content'           => $p['post_content'],
                            'about_the_author'  => get_post_meta($post_id, 'about_the_author', true)
                        );
    if(isset($category[0]) && is_array($category))
        $post['category']   = $category[0]->cat_ID;
    if(isset($tags) && is_array($tags))
        $post['tags']       = implode(', ', $tags);
}
?>

此表单需要 JavaScript 才能正常运行。请打开 JavaScript 并重试！

<div id="fep-new-post">
<div id="fep-message" class="warning"></div>
<form id="fep-submission-form">
    <label for="fep-post-title">Title</label><br/>
    <input type="text" name="post_title" id="fep-post-title" value="<?php echo ($post) ? $post['title']:''; ?>"><br/>
    <label for="fep-post-content">Content</label><br/>
    <?php
        $enable_media = (isset($fep_roles['enable_media']) && $fep_roles['enable_media'])?current_user_can($fep_roles['enable_media']):1;
        wp_editor( $post['content'], 'fep-post-content', $settings = array('textarea_name'=>'post_content', 'textarea_rows'=> 7, 'media_buttons'=>$enable_media) );
        wp_nonce_field('fepnonce_action','fepnonce');
    ?>
    <?php if(!$fep_misc['disable_author_bio']): ?>
        <label for="fep-about">Author Bio</label><br/>
        <textarea name="about_the_author" id="fep-about" rows="5"><?php echo ($post) ? $post['about_the_author']:''; ?></textarea><br/>
    <?php else: ?>
        <input type="hidden" name="about_the_author" id="fep-about" value="-1">
    <?php endif; ?>
    <label for="fep-category">Category</label><br/>
    <?php wp_dropdown_categories(array('id'=>'fep-category', 'hide_empty' => 0, 'name' => 'post_category', 'orderby' => 'name', 'selected' => $post['category'], 'hierarchical' => true, 'show_option_none' => __('None'))); ?><br/>
    <label for="fep-tags">Tags</label><br/>
    <input type="text" name="post_tags" id="fep-tags" value="<?php echo ($post) ? $post['tags']:''; ?>"><br/>
    <div id="fep-featured-image">
        <div id="fep-featured-image-container"><?php echo $featured_img_html; ?></div>
        <a id="fep-featured-image-link" href="#">Choose Featured Image</a>
        <input type="hidden" id="fep-featured-image-id" value="<?php echo (!empty($featured_img))?$featured_img:'-1'; ?>"/>
    </div>
    <input type="hidden" name="post_id" id="fep-post-id" value="<?php echo $post_id ?>">
    <button type="button" id="fep-submit-post" class="active-btn">Submit</button><img class="fep-loading-img" src="<?php echo plugins_url( 'static/img/ajax-loading.gif', dirname(__FILE__) ); ?>"/>
</form>

Answer 1

对于问题 #1：

为这些元素添加一个类（我已将类称为removal）

<label for="fep-tags" class="removal">Tags</label><br/>
<input type="text" name="post_tags" class="removal" id="fep-tags" value="<?php echo ($post) ? $post['tags']:''; ?>"><br/>
<div class="removal" id="fep-featured-image">
    <div id="fep-featured-image-container"><?php echo $featured_img_html; ?></div>
    <a id="fep-featured-image-link" href="#">Choose Featured Image</a>
    <input type="hidden" id="fep-featured-image-id" value="<?php echo (!empty($featured_img))?$featured_img:'-1'; ?>"/>
</div>

为您的主题添加自定义 CSS：

.removal{
  display:none !important;
}

对于第 2 个问题：

你可以做两件事。您可以通过在 CSS 中完全移除 textarea 来完全移除用户输入文本的能力：

#fep-about{
  display:none !important;
}

如果出于某种原因您确实需要文本框（不知道为什么）。我会添加自定义 Javascript 来检测用户是否输入了密钥或复制并粘贴了任何文本。考虑到textarea元素的ID是fep-about：

var ele = document.getElementById('fep-about')

ele.addEventListener('keyup',function(){
  this.value = "";
  alert("Only direct media uploads are allowed!");
});

ele.addEventListener('onchange',function(){
  this.value = "";
  alert("Only direct media uploads are allowed!");
});

这是 JSFiddle：https://jsfiddle.net/a3zsdo88/1/

兼容性问题

如果在覆盖上述问题的 CSS 类中存在某种问题，只需将显示语句添加到元素内：

<div id="fep-featured-image" style="display:none !important;">
    <div id="fep-featured-image-container"><?php echo $featured_img_html; ?>  </div>
    <a id="fep-featured-image-link" href="#">Choose Featured Image</a>
    <input type="hidden" id="fep-featured-image-id" value="<?php echo (!empty($featured_img))?$featured_img:'-1'; ?>"/>
</div>

看看我是如何将 display 语句添加到父元素的。对您不想显示的元素执行此操作。

如果您无法轻松自定义 Javascript，请直接在表单文件的 HTML 中添加 <script></script> 块。

<script>

   var ele = document.getElementById('fep-about')

   ele.addEventListener('keyup',function(){
     this.value = "";
     alert("Only direct media uploads are allowed!");
   });

   ele.addEventListener('onchange',function(){
     this.value = "";
     alert("Only direct media uploads are allowed!");
   });

</script>