php - 如何在 Prestashop 中为 CMS 页面添加特色图片

Question

我想从后端为我在 Prestashop 中添加的每个 CMS 页面添加一张图片，就像我们在 Wordpress 中为帖子/页面添加特色图片一样。

我在 prestashop 中找不到任何支持此功能的代码/模块。

Answer 1

这是可能的，但并不简单。以下是实现图像上传到 CMS 页面模块所需执行的步骤。这种方法不是在 PrestaShop 中实现它的最优雅的方式，但我希望它能帮助您继续前进。

第 1 步，更新模型，使其包含图像:

首先将“classes/CMS.php”覆盖为“override/classes/CMS.php”。

class CMS extends CMSCore
{    
    // add a public field to store the CMS image
    public $CMS_IMG; 

    /**
    * @see ObjectModel::$definition
    */
    public static $definition = array(
        'table' => 'cms',
        'primary' => 'id_cms',
        'multilang' => true,
        'fields' => array(
        'id_cms_category' =>  array('type' => self::TYPE_INT, 'validate' => 'isUnsignedInt'),
        'position' =>    array('type' => self::TYPE_INT),
        'active' =>    array('type' => self::TYPE_BOOL),
        // Lang fields
        'meta_description' =>  array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
        'meta_keywords' =>   array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
        'meta_title' =>   array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'required' => true, 'size' => 128),
        'content' =>    array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isString', 'size' => 3999999999999),

        // add one image per page        
        'CMS_IMG' =>   array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isString', 'size' => 3999999999999),  ),
    );
}

第二步，在后台实现上传图片所需的代码:

在'override/controllers/admin/AdminCmsController.php'中覆盖'controllers/admin/AdminCmsController.php'

class AdminCmsController extends AdminCmsControllerCore
{
    public function renderForm()
    {        
        $this->display = 'edit';
        $this->toolbar_btn['save-and-preview'] = array(
            'href' => '#',
            'desc' => $this->l('Save and preview')
        );
        $this->initToolbar();
        if (!$this->loadObject(true))
            return;
        $categories = CMSCategory::getCategories($this->context->language->id, false);
        $html_categories = CMSCategory::recurseCMSCategory($categories, $categories[0][1], 1, $this->getFieldValue($this->object, 'id_cms_category'), 1);

        // Add code to get image url
        $image_url = '';
        $imgName = $this->getImageValue($this->object);
        if($imgName) {
            $image = _PS_IMG_DIR_ . 'cms/' . $imgName;
            $image_url = ImageManager::thumbnail($image, $this->table.'_'.(int)$this->object->id.'.'.$this->imageType, 350,
                $this->imageType, true, true);
        }

        $this->fields_form = array(
            'tinymce' => true,
            'legend' => array(
                'title' => $this->l('CMS Page'),
                'image' => '../img/admin/tab-categories.gif'
            ),
            'input' => array(
                // custom template
                array(
                    'type' => 'select_category',
                    'label' => $this->l('CMS Category'),
                    'name' => 'id_cms_category',
                    'options' => array(
                        'html' => $html_categories,
                    ),
                ),
                array(
                    'type' => 'text',
                    'label' => $this->l('Meta title:'),
                    'name' => 'meta_title',
                    'id' => 'name', // for copy2friendlyUrl compatibility
                    'lang' => true,
                    'required' => true,
                    'class' => 'copy2friendlyUrl',
                    'hint' => $this->l('Invalid characters:').' <>;=#{}',
                    'size' => 50
                ),
                array(
                    'type' => 'text',
                    'label' => $this->l('Meta description'),
                    'name' => 'meta_description',
                    'lang' => true,
                    'hint' => $this->l('Invalid characters:').' <>;=#{}',
                    'size' => 70
                ),
                array(
                    'type' => 'tags',
                    'label' => $this->l('Meta keywords'),
                    'name' => 'meta_keywords',
                    'lang' => true,
                    'hint' => $this->l('Invalid characters:').' <>;=#{}',
                    'size' => 70,
                    'desc' => $this->l('To add "tags" click in the field, write something, then press "Enter"')
                ),
                array(
                    'type' => 'text',
                    'label' => $this->l('Friendly URL'),
                    'name' => 'link_rewrite',
                    'required' => true,
                    'lang' => true,
                    'hint' => $this->l('Only letters and the minus (-) character are allowed')
                ),
                array(
                    'type' => 'textarea',
                    'label' => $this->l('Page content'),
                    'name' => 'content',
                    'autoload_rte' => true,
                    'lang' => true,
                    'rows' => 5,
                    'cols' => 40,
                    'hint' => $this->l('Invalid characters:').' <>;=#{}'
                ),                
                /* Add an fileupload component to the form */
                array(
                    'type' => 'file',
                    'label' => $this->l('Page image'),
                    'name' => 'CMS_IMG',
                    'desc' => $this->l('Upload an image for this page'),
                    'lang' => true,
                    'display_image' => true,
                    'image' => $image_url ? $image_url : false,
                ),                
                array(
                    'type' => 'radio',
                    'label' => $this->l('Displayed:'),
                    'name' => 'active',
                    'required' => false,
                    'class' => 't',
                    'is_bool' => true,
                    'values' => array(
                        array(
                            'id' => 'active_on',
                            'value' => 1,
                            'label' => $this->l('Enabled')
                        ),
                        array(
                            'id' => 'active_off',
                            'value' => 0,
                            'label' => $this->l('Disabled')
                        )
                    ),
                ),
            ),
            'submit' => array(
                'title' => $this->l('   Save   '),
                'class' => 'button'
            )
        );
        if (Shop::isFeatureActive())
        {
            $this->fields_form['input'][] = array(
                'type' => 'shop',
                'label' => $this->l('Shop association:'),
                'name' => 'checkBoxShopAsso',
            );
        }
        $this->tpl_form_vars = array(
            'active' => $this->object->active
        );
        return AdminControllerCore::renderForm();
    }

    public function postProcess()
    {
        $languages = Language::getLanguages(false);
        $update_images_values = false;

        foreach ($languages as $lang)
        {
            if (isset($_FILES['CMS_IMG'])
                && isset($_FILES['CMS_IMG']['tmp_name'])
                && !empty($_FILES['CMS_IMG']['tmp_name']))
            {
                if ($error = ImageManager::validateUpload($_FILES['CMS_IMG'], 4000000))
                    return $error;
                else
                {
                    $ext = substr($_FILES['CMS_IMG']['name'], strrpos($_FILES['CMS_IMG']['name'], '.') + 1);
                    $file_name = md5($_FILES['CMS_IMG']['name']).'.'.$ext;

                    if (!move_uploaded_file($_FILES['CMS_IMG']['tmp_name'],
                        _PS_IMG_DIR_ .'cms'.DIRECTORY_SEPARATOR.$file_name))
                        return Tools::displayError($this->l('An error occurred while attempting to upload the file.'));
                    else
                    {
                        $values['CMS_IMG'][$lang['id_lang']] = $file_name;
                    }
                }

                $update_images_values = true;
                $cms = new CMS((int)Tools::getValue('id_cms'));
                $cms->CMS_IMG = $file_name;
                $cms->update();
            }
        }

        parent::postProcess();
    }

    public function getImageValue()
    {
        $db = Db::getInstance();
        $sql = 'SELECT CMS_IMG FROM '._DB_PREFIX_.'cms_lang WHERE id_cms = ' . $this->object->id;
        return $db->getValue($sql);
    }
}

第三步，实现前端代码

在'override/controllers/front/CmsController.php'中覆盖'controllers/front/CmsController.php'

class CmsController extends CmsControllerCore
{

    /**
     * Assign template vars related to page content
     * @see CmsControllerCore::initContent()
     */
    public function initContent()
    {
        if(!empty($this->cms->CMS_IMG)) {
            $this->context->smarty->assign('cms_image', _PS_IMG_ . 'cms/' . $this->cms->CMS_IMG);
        }

        parent::initContent();
    }
}

第四步，在模板中使用你的图片

现在您可以，例如在 cms.tpl 中使用以下代码:

{if $cms_image != ''}
    <img src="{$cms_image}">
{/if}

---

基于:https://www.prestashop.com/forums/topic/141903-add-custom-field-to-cms-module/