无法向 prestashop 1.7 中的模块添加任何样式表

Question

我在向 prestashop 前台添加任何样式表时遇到了问题。我阅读了多篇文章，尝试了多种解决方案，但无法使其发挥作用。将样式添加到后台不是问题（但我认为这段用于将样式添加到后台的代码是解决方法）。这是模块代码。（我在多个位置添加了样式表导入来检查每个解决方案。在其他模块中，此方法按预期工作）。抱歉，代码很乱，我不太擅长 PHP。

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<?php\n\nif (!defined(\'_PS_VERSION_\'))\n    exit();\n\nclass PromotionBanner extends Module\n{\n    public function __construct()\n    {\n        $this->name = \'promotionbanner\';\n        $this->tab = \'front_office_features\';\n        $this->version = \'1.0.0\';\n        $this->author = \'example\';\n        $this->author_uri = \'https://example.com\';\n        $this->ps_versions_compliancy = array(\'min\' => \'1.7.1.0\', \'max\' => _PS_VERSION_);\n        $this->bootstrap = true;\n        $this->need_instance = 0;\n        $this->dir = \'/modules/promotionbanner\';\n        $this->css_path = Tools::getShopDomainSsl(true, true) . __PS_BASE_URI__ . \'modules/\' . $this->name\n            . \'/\' . $this->_path . \'views/css/\';\n\n        parent::__construct();\n\n        $this->displayName = $this->l(\'Promotion Banner\', \'promotionbanner\');\n        $this->description = $this->l(\'This module provides configurable promotion banner on your website\');\n\n        $this->confirmUninstall = $this->l(\'Are you sure you want to uninstall the module?\', \'promotionbanner\');\n    }\n\n    private function updateConf()\n    {\n        Configuration::updateValue(\'banner_text\', $this->l(\'Wybrane produkty ta\xc5\x84sze o 15%! Kod rabatowy: \'));\n        Configuration::updateValue(\'banner_coupon_code\', $this->l(\'Wybierz kupon rabatowy\'));\n    }\n\n    public function install()\n    {\n        $this->updateConf();\n        return parent::install() && $this -> registerHook(\'displayWrapperTop\') && $this->registerHook(\'header\');\n    }\n\n    public function uninstall()\n    {\n        if (!parent::uninstall() || !Configuration::deleteByName(\'promotionbanner_module\') &&\n            !Configuration::deleteByName(\'banner_coupon_code\'))\n            return false;\n        return true;\n    }\n\n    public function hookDisplayWrapperTop($params)\n    {\n        $this->context->smarty->assign(\n            array(\n                \'banner_text\' => Configuration::get(\'banner_text\'),\n                \'banner_coupon_code\' => Configuration::get(\'banner_coupon_code\')\n            )\n        );\n\n        $this->context->controller->registerStylesheet(\n            \'modules-promotion-banner2\', //This id has to be unique\n            \'modules/\'.$this->name.\'/views/css/front.css\',\n            array(\'media\' => \'all\', \'priority\' => 150)\n        );\n\n        return $this->display(__FILE__, \'promotionbanner.tpl\');\n    }\n\n    public function hookHeader() {\n        $this->context->controller->addCSS($this->_path . \'views/css/front.css\', \'all\');\n        $this->context->controller->registerStylesheet(\n            \'modules-promotion-banner\', //This id has to be unique\n            \'modules/\'.$this->name.\'/views/css/front.css\',\n            array(\'media\' => \'all\', \'priority\' => 150)\n        );\n    }\n\n    public function hookActionFrontControllerSetMedia($params) {\n        $this->context->controller->registerStylesheet(\n            \'module-promotionbanner-style\',\n            \'modules/\'.$this->name.\'/views/css/front.css\',\n            [\n                \'media\' => \'all\',\n                \'priority\' => 200,\n            ]\n        );\n    }\n\n    public function getPromotions()\n    {\n        $cart_rule = _DB_PREFIX_ . \'cart_rule\';\n        $request = "SELECT $cart_rule.id_cart_rule, " . _DB_PREFIX_ . "cart_rule_lang.name, $cart_rule.code " .\n            "FROM $cart_rule INNER JOIN " . _DB_PREFIX_ . \'cart_rule_lang ON \' . _DB_PREFIX_ . \'cart_rule.id_cart_rule=\'\n            . _DB_PREFIX_ . \'cart_rule_lang.id_cart_rule WHERE \' . _DB_PREFIX_ . \'cart_rule.code IS NOT NULL\';\n        $db = Db::getInstance();\n        $cupons = $db->executeS($request);\n        $parsedCupons = array();\n        foreach ($cupons as $cupon) {\n            array_push($parsedCupons, array(\n                \'code\' => $cupon[\'code\'],\n                \'name\' => $cupon[\'name\']\n            ));\n        }\n        return $parsedCupons;\n    }\n\n    public function displayForm()\n    {\n        $form = $this->renderForm();\n\n        $this->context->smarty->assign(array(\n            \'banner_text\' => Configuration::get(\'banner_text\'),\n            \'banner_coupon_code\' => Configuration::get(\'banner_coupon_code\'),\n            \'form_url\' => AdminController::$currentIndex . \'&configure=\' . $this->name . \'&token=\' . Tools::getAdminTokenLite(\'AdminModules\'),\n            \'name\' => $this->name,\n            \'form_tpl\' => $form,\n            \'coupon_codes\' => $this->getPromotions()\n        ));\n        $this->context->controller->addCSS(array(\n            $this->css_path . \'fontawesome-all.min.css\',\n            $this->css_path . \'module.css\'\n        ));\n\n        $this->output = $this->context->smarty->fetch($this->local_path . \'views/templates/admin/menu.tpl\');\n\n        return $this->output;\n    }\n\n    public function renderForm()\n    {\n        $helper = new HelperForm();\n\n        $helper->module = $this;\n        $helper->name_controller = $this->name;\n        $helper->token = Tools::getAdminTokenLite(\'AdminModules\');\n        $helper->currentIndex = AdminController::$currentIndex . \'&configure=\' . $this->name;\n        $helper->title = $this->displayName;\n        $helper->show_toolbar = false;\n        $helper->toolbar_scroll = false;\n        $helper->submit_action = \'submit\' . $this->name;\n        $helper->toolbar_btn = array(\n            \'save\' =>\n                array(\n                    \'desc\' => $this->l(\'Save\'),\n                    \'href\' => AdminController::$currentIndex . \'&configure=\' . $this->name . \'&save\' . $this->name .\n                        \'&token=\' . Tools::getAdminTokenLite(\'AdminModules\'),\n                )\n        );\n\n        $helper->fields_value = array(\n            \'banner_text\' => Configuration::get(\'banner_text\'),\n            \'banner_coupon_code\' => Configuration::get(\'banner_coupon_code\')\n        );\n\n        return $helper->generateForm(array($this->getConfigForm()));\n    }\n\n    public function getConfigForm()\n    {\n        $fields_form = array(\n            \'form\' => array(\n                \'input\' => array(\n                    array(\n                        \'type\' => \'text\',\n                        \'label\' => $this->l(\'Banner text before code: \'),\n                        \'name\' => \'banner_text\',\n                        \'lang\' => false,\n                        \'required\' => true,\n                        \'size\' => 20\n                    ),\n                    array(\n                        \'type\' => \'select\',\n                        \'label\' => $this->l(\'Coupon code: \'),\n                        \'name\' => \'banner_coupon_code\',\n                        \'required\' => true,\n                        \'options\' => array(\n                            \'query\' => $this->getPromotions(),\n                            \'id\' => \'code\',\n                            \'name\' => \'name\'\n                        )\n                    )\n                ),\n                \'submit\' => array(\n                    \'title\' => $this->l(\'Save\'),\n                    \'class\' => \'btn btn-default pull-right\'\n                )\n            )\n        );\n\n        return $fields_form;\n    }\n\n    public function getContent()\n    {\n        $output = "";\n\n        if (Tools::isSubmit(\'submit\' . $this->name)) {\n            $banner_text = strval(Tools::getValue(\'banner_text\'));\n            $banner_coupon_code = strval(Tools::getValue(\'banner_coupon_code\'));\n\n            if (!isset($banner_text) || !isset($banner_coupon_code))\n                $output .= $this->displayError($this->l(\'Please insert something in this field.\'));\n            else {\n                Configuration::updateValue(\'banner_text\', $banner_text);\n                Configuration::updateValue(\'banner_coupon_code\', $banner_coupon_code);\n                $output .= $this->displayConfirmation($this->l(\'Field updated successfully!\'));\n            }\n        }\n        return $output . $this->displayForm();\n    }\n\n\n}\n

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Answer 1

好的，我已经成功在 prestashop 1.7.6.1中注册了样式表。但我认为现在是提及我的一些错误并解决一些问题的好时机。

在前台注册样式表的清单

1. 使用正确的钩子来完成工作。 我的问题一直没有解决，因为我使用了错误的钩子。
2. 确保您__construct()注册了用于注册样式表的官方挂钩（prestashop 1.7.x）。正确的钩子是：$this->registerHook('actionFrontControllerSetMedia');您可以在这里找到官方文档（如果您的模块中没有前端控制器）： https: //devdocs.prestashop.com/1.7/themes/getting-started/asset-management/#without-前端控制器模块
3. 确保您注册了您的钩子函数$params（我不知道为什么，但如果没有定义函数参数，它就无法工作......这也阻止了我成功注册）。正确的函数应该是这样的：

        $this->context->controller->registerStylesheet(
            'stylesheet-id', //This id has to be unique
            'modules/'.$this->name.'/views/css/front.css',
            array('server' => 'local', 'priority' => 10)
        );
    }

4. 正如@bakis提到的。每次尝试清除 chrome 或 chromium 用户的浏览器缓存 + prestashop 缓存后，我建议完全禁用检查器窗口中的浏览器缓存。
5. 我知道它$this->context->controller->addCSS仍然存在，但此功能仅对后台样式表注册有用。连官方文档都这么说

addJS()、addCSS()、addJqueryUI() 和 addJqueryPlugin() 方法保持向后兼容性。

这几乎就是这个问题的全部内容。我希望它能帮助将来正在寻找答案的人。