Initial commit

classes/module/CarrierModule.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * 2007-2019 PrestaShop and Contributors
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://www.prestashop.com for more information.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright 2007-2019 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * International Registered Trademark & Property of PrestaShop SA
+ */
+abstract class CarrierModuleCore extends Module
+{
+    abstract public function getOrderShippingCost($params, $shipping_cost);
+
+    abstract public function getOrderShippingCostExternal($params);
+}

classes/module/ModuleGraph.php

@@ -0,0 +1,361 @@
+<?php
+/**
+ * 2007-2019 PrestaShop and Contributors
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://www.prestashop.com for more information.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright 2007-2019 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * International Registered Trademark & Property of PrestaShop SA
+ */
+abstract class ModuleGraphCore extends Module
+{
+    protected $_employee;
+
+    /** @var array of integers graph data */
+    protected $_values = array();
+
+    /** @var array of strings graph legends (X axis) */
+    protected $_legend = array();
+
+    /** @var array string graph titles */
+    protected $_titles = array('main' => null, 'x' => null, 'y' => null);
+
+    /** @var ModuleGraphEngine graph engine */
+    protected $_render;
+
+    abstract protected function getData($layers);
+
+    public function setEmployee($id_employee)
+    {
+        $this->_employee = new Employee($id_employee);
+    }
+
+    public function setLang($id_lang)
+    {
+        $this->_id_lang = $id_lang;
+    }
+
+    protected function setDateGraph($layers, $legend = false)
+    {
+        // Get dates in a manageable format
+        $from_array = getdate(strtotime($this->_employee->stats_date_from));
+        $to_array = getdate(strtotime($this->_employee->stats_date_to));
+
+        // If the granularity is inferior to 1 day
+        if ($this->_employee->stats_date_from == $this->_employee->stats_date_to) {
+            if ($legend) {
+                for ($i = 0; $i < 24; ++$i) {
+                    if ($layers == 1) {
+                        $this->_values[$i] = 0;
+                    } else {
+                        for ($j = 0; $j < $layers; ++$j) {
+                            $this->_values[$j][$i] = 0;
+                        }
+                    }
+                    $this->_legend[$i] = ($i % 2) ? '' : sprintf('%02dh', $i);
+                }
+            }
+            if (is_callable(array($this, 'setDayValues'))) {
+                $this->setDayValues($layers);
+            }
+        } elseif (strtotime($this->_employee->stats_date_to) - strtotime($this->_employee->stats_date_from) <= 2678400) {
+            // If the granularity is inferior to 1 month
+            // @TODO : change to manage 28 to 31 days
+
+            if ($legend) {
+                $days = array();
+                if ($from_array['mon'] == $to_array['mon']) {
+                    for ($i = $from_array['mday']; $i <= $to_array['mday']; ++$i) {
+                        $days[] = $i;
+                    }
+                } else {
+                    $imax = date('t', mktime(0, 0, 0, $from_array['mon'], 1, $from_array['year']));
+                    for ($i = $from_array['mday']; $i <= $imax; ++$i) {
+                        $days[] = $i;
+                    }
+                    for ($i = 1; $i <= $to_array['mday']; ++$i) {
+                        $days[] = $i;
+                    }
+                }
+                foreach ($days as $i) {
+                    if ($layers == 1) {
+                        $this->_values[$i] = 0;
+                    } else {
+                        for ($j = 0; $j < $layers; ++$j) {
+                            $this->_values[$j][$i] = 0;
+                        }
+                    }
+                    $this->_legend[$i] = ($i % 2) ? '' : sprintf('%02d', $i);
+                }
+            }
+            if (is_callable(array($this, 'setMonthValues'))) {
+                $this->setMonthValues($layers);
+            }
+        } elseif (strtotime('-1 year', strtotime($this->_employee->stats_date_to)) < strtotime($this->_employee->stats_date_from)) {
+            // If the granularity is less than 1 year
+
+            if ($legend) {
+                $months = array();
+                if ($from_array['year'] == $to_array['year']) {
+                    for ($i = $from_array['mon']; $i <= $to_array['mon']; ++$i) {
+                        $months[] = $i;
+                    }
+                } else {
+                    for ($i = $from_array['mon']; $i <= 12; ++$i) {
+                        $months[] = $i;
+                    }
+                    for ($i = 1; $i <= $to_array['mon']; ++$i) {
+                        $months[] = $i;
+                    }
+                }
+                foreach ($months as $i) {
+                    if ($layers == 1) {
+                        $this->_values[$i] = 0;
+                    } else {
+                        for ($j = 0; $j < $layers; ++$j) {
+                            $this->_values[$j][$i] = 0;
+                        }
+                    }
+                    $this->_legend[$i] = sprintf('%02d', $i);
+                }
+            }
+            if (is_callable(array($this, 'setYearValues'))) {
+                $this->setYearValues($layers);
+            }
+        } else {
+            // If the granularity is greater than 1 year
+
+            if ($legend) {
+                $years = array();
+                for ($i = $from_array['year']; $i <= $to_array['year']; ++$i) {
+                    $years[] = $i;
+                }
+                foreach ($years as $i) {
+                    if ($layers == 1) {
+                        $this->_values[$i] = 0;
+                    } else {
+                        for ($j = 0; $j < $layers; ++$j) {
+                            $this->_values[$j][$i] = 0;
+                        }
+                    }
+                    $this->_legend[$i] = sprintf('%04d', $i);
+                }
+            }
+            if (is_callable(array($this, 'setAllTimeValues'))) {
+                $this->setAllTimeValues($layers);
+            }
+        }
+    }
+
+    protected function csvExport($datas)
+    {
+        $context = Context::getContext();
+
+        $this->setEmployee($context->employee->id);
+        $this->setLang($context->language->id);
+
+        $layers = isset($datas['layers']) ? $datas['layers'] : 1;
+        if (isset($datas['option'])) {
+            $this->setOption($datas['option'], $layers);
+        }
+        $this->getData($layers);
+
+        // @todo use native CSV PHP functions ?
+        // Generate first line (column titles)
+        if (is_array($this->_titles['main'])) {
+            for ($i = 0, $total_main = count($this->_titles['main']); $i <= $total_main; ++$i) {
+                if ($i > 0) {
+                    $this->_csv .= ';';
+                }
+                if (isset($this->_titles['main'][$i])) {
+                    $this->_csv .= $this->_titles['main'][$i];
+                }
+            }
+        } else { // If there is only one column title, there is in fast two column (the first without title)
+            $this->_csv .= ';' . $this->_titles['main'];
+        }
+        $this->_csv .= "\n";
+        if (count($this->_legend)) {
+            $total = 0;
+            if ($datas['type'] == 'pie') {
+                foreach ($this->_legend as $key => $legend) {
+                    for ($i = 0, $total_main = (is_array($this->_titles['main']) ? count($this->_values) : 1); $i < $total_main; ++$i) {
+                        $total += (is_array($this->_values[$i]) ? $this->_values[$i][$key] : $this->_values[$key]);
+                    }
+                }
+            }
+            foreach ($this->_legend as $key => $legend) {
+                $this->_csv .= $legend . ';';
+                for ($i = 0, $total_main = (is_array($this->_titles['main']) ? count($this->_values) : 1); $i < $total_main; ++$i) {
+                    if (!isset($this->_values[$i]) || !is_array($this->_values[$i])) {
+                        if (isset($this->_values[$key])) {
+                            // We don't want strings to be divided. Example: product name
+                            if (is_numeric($this->_values[$key])) {
+                                $this->_csv .= $this->_values[$key] / (($datas['type'] == 'pie') ? $total : 1);
+                            } else {
+                                $this->_csv .= $this->_values[$key];
+                            }
+                        } else {
+                            $this->_csv .= '0';
+                        }
+                    } else {
+                        // We don't want strings to be divided. Example: product name
+                        if (is_numeric($this->_values[$i][$key])) {
+                            $this->_csv .= $this->_values[$i][$key] / (($datas['type'] == 'pie') ? $total : 1);
+                        } else {
+                            $this->_csv .= $this->_values[$i][$key];
+                        }
+                    }
+                    $this->_csv .= ';';
+                }
+                $this->_csv .= "\n";
+            }
+        }
+        $this->_displayCsv();
+    }
+
+    protected function _displayCsv()
+    {
+        if (ob_get_level() && ob_get_length() > 0) {
+            ob_end_clean();
+        }
+        header('Content-Type: application/octet-stream');
+        header('Content-Disposition: attachment; filename="' . $this->displayName . ' - ' . time() . '.csv"');
+        echo $this->_csv;
+        exit;
+    }
+
+    public function create($render, $type, $width, $height, $layers)
+    {
+        if (!Validate::isModuleName($render)) {
+            die(Tools::displayError());
+        }
+        if (!Tools::file_exists_cache($file = _PS_ROOT_DIR_ . '/modules/' . $render . '/' . $render . '.php')) {
+            die(Tools::displayError());
+        }
+        require_once $file;
+        $this->_render = new $render($type);
+
+        $this->getData($layers);
+        $this->_render->createValues($this->_values);
+        $this->_render->setSize($width, $height);
+        $this->_render->setLegend($this->_legend);
+        $this->_render->setTitles($this->_titles);
+    }
+
+    public function draw()
+    {
+        $this->_render->draw();
+    }
+
+    /**
+     * @todo Set this method as abstracted ? Quid of module compatibility.
+     */
+    public function setOption($option, $layers = 1)
+    {
+    }
+
+    public function engine($params)
+    {
+        $context = Context::getContext();
+        if (!($render = Configuration::get('PS_STATS_RENDER'))) {
+            return Context::getContext()->getTranslator()->trans('No graph engine selected', array(), 'Admin.Modules.Notification');
+        }
+        if (!Validate::isModuleName($render)) {
+            die(Tools::displayError());
+        }
+        if (!file_exists(_PS_ROOT_DIR_ . '/modules/' . $render . '/' . $render . '.php')) {
+            return Context::getContext()->getTranslator()->trans('Graph engine selected is unavailable.', array(), 'Admin.Modules.Notification');
+        }
+
+        $id_employee = (int) $context->employee->id;
+        $id_lang = (int) $context->language->id;
+
+        if (!isset($params['layers'])) {
+            $params['layers'] = 1;
+        }
+        if (!isset($params['type'])) {
+            $params['type'] = 'column';
+        }
+        if (!isset($params['width'])) {
+            $params['width'] = '100%';
+        }
+        if (!isset($params['height'])) {
+            $params['height'] = 270;
+        }
+
+        $url_params = $params;
+        $url_params['render'] = $render;
+        $url_params['module'] = Tools::getValue('module');
+        $url_params['id_employee'] = $id_employee;
+        $url_params['id_lang'] = $id_lang;
+        $url_params['ajax'] = 1;
+        $url_params['action'] = 'graphDraw';
+        $drawer = Context::getContext()->link->getAdminLink('AdminStats', true, [], array_map('Tools::safeOutput', $url_params));
+
+        require_once _PS_ROOT_DIR_ . '/modules/' . $render . '/' . $render . '.php';
+
+        return call_user_func(array($render, 'hookGraphEngine'), $params, $drawer);
+    }
+
+    protected static function getEmployee($employee = null, Context $context = null)
+    {
+        if (!Validate::isLoadedObject($employee)) {
+            if (!$context) {
+                $context = Context::getContext();
+            }
+            if (!Validate::isLoadedObject($context->employee)) {
+                return false;
+            }
+            $employee = $context->employee;
+        }
+
+        if (empty($employee->stats_date_from) || empty($employee->stats_date_to)
+            || $employee->stats_date_from == '0000-00-00' || $employee->stats_date_to == '0000-00-00') {
+            if (empty($employee->stats_date_from) || $employee->stats_date_from == '0000-00-00') {
+                $employee->stats_date_from = date('Y') . '-01-01';
+            }
+            if (empty($employee->stats_date_to) || $employee->stats_date_to == '0000-00-00') {
+                $employee->stats_date_to = date('Y') . '-12-31';
+            }
+            $employee->update();
+        }
+
+        return $employee;
+    }
+
+    public function getDate()
+    {
+        return ModuleGraph::getDateBetween($this->_employee);
+    }
+
+    public static function getDateBetween($employee = null)
+    {
+        if ($employee = ModuleGraph::getEmployee($employee)) {
+            return ' \'' . pSQL($employee->stats_date_from) . ' 00:00:00\' AND \'' . pSQL($employee->stats_date_to) . ' 23:59:59\' ';
+        }
+
+        return ' \'' . date('Y-m') . '-01 00:00:00\' AND \'' . date('Y-m-t') . ' 23:59:59\' ';
+    }
+
+    public function getLang()
+    {
+        return $this->_id_lang;
+    }
+}

classes/module/ModuleGraphEngine.php

@@ -0,0 +1,75 @@
+<?php
+/**
+ * 2007-2019 PrestaShop and Contributors
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://www.prestashop.com for more information.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright 2007-2019 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * International Registered Trademark & Property of PrestaShop SA
+ */
+abstract class ModuleGraphEngineCore extends Module
+{
+    protected $_type;
+
+    public function __construct($type)
+    {
+        $this->_type = $type;
+    }
+
+    public function install()
+    {
+        if (!parent::install()) {
+            return false;
+        }
+
+        return Configuration::updateValue('PS_STATS_RENDER', $this->name);
+    }
+
+    public static function getGraphEngines()
+    {
+        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
+            SELECT m.`name`
+            FROM `' . _DB_PREFIX_ . 'module` m
+            LEFT JOIN `' . _DB_PREFIX_ . 'hook_module` hm ON hm.`id_module` = m.`id_module`
+            LEFT JOIN `' . _DB_PREFIX_ . 'hook` h ON hm.`id_hook` = h.`id_hook`
+            WHERE h.`name` = \'displayAdminStatsGraphEngine\'
+        ');
+
+        $array_engines = array();
+        foreach ($result as $module) {
+            $instance = Module::getInstanceByName($module['name']);
+            if (!$instance) {
+                continue;
+            }
+            $array_engines[$module['name']] = array($instance->displayName, $instance->description);
+        }
+
+        return $array_engines;
+    }
+
+    abstract public function createValues($values);
+
+    abstract public function setSize($width, $height);
+
+    abstract public function setLegend($legend);
+
+    abstract public function setTitles($titles);
+
+    abstract public function draw();
+}

classes/module/ModuleGrid.php

@@ -0,0 +1,201 @@
+<?php
+/**
+ * 2007-2019 PrestaShop and Contributors
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://www.prestashop.com for more information.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright 2007-2019 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * International Registered Trademark & Property of PrestaShop SA
+ */
+abstract class ModuleGridCore extends Module
+{
+    protected $_employee;
+
+    /** @var array of strings graph data */
+    protected $_values = array();
+
+    /** @var int total number of values * */
+    protected $_totalCount = 0;
+
+    /** @var string graph titles */
+    protected $_title;
+
+    /** @var int start */
+    protected $_start;
+
+    /** @var int limit */
+    protected $_limit;
+
+    /** @var string column name on which to sort */
+    protected $_sort = null;
+
+    /** @var string sort direction DESC/ASC */
+    protected $_direction = null;
+
+    /** @var ModuleGridEngine grid engine */
+    protected $_render;
+
+    abstract protected function getData();
+
+    public function setEmployee($id_employee)
+    {
+        $this->_employee = new Employee($id_employee);
+    }
+
+    public function setLang($id_lang)
+    {
+        $this->_id_lang = $id_lang;
+    }
+
+    public function create($render, $type, $width, $height, $start, $limit, $sort, $dir)
+    {
+        if (!Validate::isModuleName($render)) {
+            die(Tools::displayError());
+        }
+        if (!Tools::file_exists_cache($file = _PS_ROOT_DIR_ . '/modules/' . $render . '/' . $render . '.php')) {
+            die(Tools::displayError());
+        }
+        require_once $file;
+        $this->_render = new $render($type);
+
+        $this->_start = $start;
+        $this->_limit = $limit;
+        $this->_sort = $sort;
+        $this->_direction = $dir;
+
+        $this->getData();
+
+        $this->_render->setTitle($this->_title);
+        $this->_render->setSize($width, $height);
+        $this->_render->setValues($this->_values);
+        $this->_render->setTotalCount($this->_totalCount);
+        $this->_render->setLimit($this->_start, $this->_limit);
+    }
+
+    public function render()
+    {
+        $this->_render->render();
+    }
+
+    public function engine($params)
+    {
+        if (!($render = Configuration::get('PS_STATS_GRID_RENDER'))) {
+            return Context::getContext()->getTranslator()->trans('No grid engine selected', array(), 'Admin.Modules.Notification');
+        }
+        if (!Validate::isModuleName($render)) {
+            die(Tools::displayError());
+        }
+        if (!file_exists(_PS_ROOT_DIR_ . '/modules/' . $render . '/' . $render . '.php')) {
+            return Context::getContext()->getTranslator()->trans('Grid engine selected is unavailable.', array(), 'Admin.Modules.Notification');
+        }
+
+        $grider = Context::getContext()->link->getAdminLink('AdminStats', true, [], ['action' => 'graphGrid', 'ajax' => 1, 'render' => $render, 'module' => Tools::safeOutput(Tools::getValue('module'))]);
+
+        $context = Context::getContext();
+        $grider .= '&id_employee=' . (int) $context->employee->id;
+        $grider .= '&id_lang=' . (int) $context->language->id;
+
+        if (!isset($params['width']) || !Validate::IsUnsignedInt($params['width'])) {
+            $params['width'] = 600;
+        }
+        if (!isset($params['height']) || !Validate::IsUnsignedInt($params['height'])) {
+            $params['height'] = 920;
+        }
+        if (!isset($params['start']) || !Validate::IsUnsignedInt($params['start'])) {
+            $params['start'] = 0;
+        }
+        if (!isset($params['limit']) || !Validate::IsUnsignedInt($params['limit'])) {
+            $params['limit'] = 40;
+        }
+
+        $grider .= '&width=' . $params['width'];
+        $grider .= '&height=' . $params['height'];
+        if (isset($params['start']) && Validate::IsUnsignedInt($params['start'])) {
+            $grider .= '&start=' . $params['start'];
+        }
+        if (isset($params['limit']) && Validate::IsUnsignedInt($params['limit'])) {
+            $grider .= '&limit=' . $params['limit'];
+        }
+        if (isset($params['type']) && Validate::IsName($params['type'])) {
+            $grider .= '&type=' . $params['type'];
+        }
+        if (isset($params['option']) && Validate::IsGenericName($params['option'])) {
+            $grider .= '&option=' . $params['option'];
+        }
+        if (isset($params['sort']) && Validate::IsName($params['sort'])) {
+            $grider .= '&sort=' . $params['sort'];
+        }
+        if (isset($params['dir']) && Validate::isSortDirection($params['dir'])) {
+            $grider .= '&dir=' . $params['dir'];
+        }
+
+        require_once _PS_ROOT_DIR_ . '/modules/' . $render . '/' . $render . '.php';
+
+        return call_user_func(array($render, 'hookGridEngine'), $params, $grider);
+    }
+
+    protected function csvExport($datas)
+    {
+        $this->_sort = $datas['defaultSortColumn'];
+        $this->setLang(Context::getContext()->language->id);
+        $this->getData();
+
+        $layers = isset($datas['layers']) ? $datas['layers'] : 1;
+
+        if (isset($datas['option'])) {
+            $this->setOption($datas['option'], $layers);
+        }
+
+        if (count($datas['columns'])) {
+            foreach ($datas['columns'] as $column) {
+                $this->_csv .= $column['header'] . ';';
+            }
+            $this->_csv = rtrim($this->_csv, ';') . "\n";
+
+            foreach ($this->_values as $value) {
+                foreach ($datas['columns'] as $column) {
+                    $this->_csv .= $value[$column['dataIndex']] . ';';
+                }
+                $this->_csv = rtrim($this->_csv, ';') . "\n";
+            }
+        }
+        $this->_displayCsv();
+    }
+
+    protected function _displayCsv()
+    {
+        if (ob_get_level() && ob_get_length() > 0) {
+            ob_end_clean();
+        }
+        header('Content-Type: application/octet-stream');
+        header('Content-Disposition: attachment; filename="' . $this->displayName . ' - ' . time() . '.csv"');
+        echo $this->_csv;
+        exit;
+    }
+
+    public function getDate()
+    {
+        return ModuleGraph::getDateBetween($this->_employee);
+    }
+
+    public function getLang()
+    {
+        return $this->_id_lang;
+    }
+}

classes/module/ModuleGridEngine.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * 2007-2019 PrestaShop and Contributors
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://www.prestashop.com for more information.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright 2007-2019 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * International Registered Trademark & Property of PrestaShop SA
+ */
+abstract class ModuleGridEngineCore extends Module
+{
+    protected $_type;
+
+    public function __construct($type)
+    {
+        $this->_type = $type;
+    }
+
+    public function install()
+    {
+        if (!parent::install()) {
+            return false;
+        }
+
+        return Configuration::updateValue('PS_STATS_GRID_RENDER', $this->name);
+    }
+
+    public static function getGridEngines()
+    {
+        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
+            SELECT m.`name`
+            FROM `' . _DB_PREFIX_ . 'module` m
+            LEFT JOIN `' . _DB_PREFIX_ . 'hook_module` hm ON hm.`id_module` = m.`id_module`
+            LEFT JOIN `' . _DB_PREFIX_ . 'hook` h ON hm.`id_hook` = h.`id_hook`
+            WHERE h.`name` = \'displayAdminStatsGridEngine\'
+        ');
+
+        $array_engines = array();
+        foreach ($result as $module) {
+            $instance = Module::getInstanceByName($module['name']);
+            if (!$instance) {
+                continue;
+            }
+            $array_engines[$module['name']] = array($instance->displayName, $instance->description);
+        }
+
+        return $array_engines;
+    }
+
+    abstract public function setValues($values);
+
+    abstract public function setTitle($title);
+
+    abstract public function setSize($width, $height);
+
+    abstract public function setTotalCount($total_count);
+
+    abstract public function setLimit($start, $limit);
+
+    abstract public function render();
+}

classes/module/index.php

@@ -0,0 +1,34 @@
+<?php
+/**
+ * 2007-2019 PrestaShop and Contributors
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://www.prestashop.com for more information.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright 2007-2019 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * International Registered Trademark & Property of PrestaShop SA
+ */
+header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
+header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
+
+header('Cache-Control: no-store, no-cache, must-revalidate');
+header('Cache-Control: post-check=0, pre-check=0', false);
+header('Pragma: no-cache');
+
+header('Location: ../../');
+exit;