1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 

<?php

/* --------------------------------------------------------------
   ProductRepositoryDeleteHelper.inc.php 2017-05-23
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2017 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

/**
 * Class ProductRepositoryDeleteHelper
 */
class ProductRepositoryDeleteHelper
{
    /**
     * Removes product contents, if they are not duplicated.
     *
     * @param \IdType                                    $productId                  Product id of content to be
     *                                                                               removed.
     * @param \CI_DB_query_builder                       $db                         Query builder instance to access
     *                                                                               data.
     * @param \ProductsContentFileStorage                $productsContentFileStorage Storage class for product
     *                                                                               contents.
     * @param \ResponsiveFileManagerConfigurationStorage $fileManagerStorage         File manager configuration access.
     *
     * @return $this|\ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    public function productsContent(IdType $productId,
                                    CI_DB_query_builder $db,
                                    ProductsContentFileStorage $productsContentFileStorage,
                                    ResponsiveFileManagerConfigurationStorage $fileManagerStorage)
    {
        $this->_removeProductContentByProductId($productId, $db, $productsContentFileStorage, $fileManagerStorage);

        return $this;
    }


    /**
     * Removes product content data by the given product id.
     *
     * @param \IdType                                    $productId                  Product id of content data to be
     *                                                                               removed.
     * @param \CI_DB_query_builder                       $db                         Query builder instance to access
     *                                                                               data.
     * @param \ProductsContentFileStorage                $productsContentFileStorage Storage class for product
     *                                                                               contents.
     * @param \ResponsiveFileManagerConfigurationStorage $fileManagerStorage         File manager configuration access.
     *
     * @return $this
     */
    private function _removeProductContentByProductId(IdType $productId,
                                                      CI_DB_query_builder $db,
                                                      ProductsContentFileStorage $productsContentFileStorage,
                                                      ResponsiveFileManagerConfigurationStorage $fileManagerStorage)
    {
        $productContentIdsToBeRemoved = $this->_determinePcIdToBeRemoved($productId, $db);

        foreach($productContentIdsToBeRemoved as $productContentIdToBeRemoved)
        {
            if(!$fileManagerStorage->isInstalled())
            {
                $this->_removeUnusedProductContentFiles($productContentIdToBeRemoved, $db, $productsContentFileStorage);
            }

            $productContentDescriptionIdToBeRemoved = $this->_determinePcdIdsToBeRemovedInPcr($db,
                                                                                              $productContentIdToBeRemoved);

            $this->_removeProductContentEntries($db, $productContentIdToBeRemoved);
            $this->_removeProductContentResourceEntries($db, $productContentDescriptionIdToBeRemoved);
            $this->_removeProductContentDescriptionEntries($db, $productContentIdToBeRemoved);
        }
        $this->_removeProductContentProductsEntries($db, $productId);

        return $this;
    }


    /**
     * Removes product content entries by the given product content id.
     *
     * @param \CI_DB_query_builder $db   Database access instance.
     * @param int                  $pcId Id of product content record to be removed.
     *
     * @return $this|\ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    private function _removeProductContentEntries(CI_DB_query_builder $db, $pcId)
    {
        $db->delete('product_contents', ['id' => $pcId]);

        return $this;
    }


    /**
     * Removes product content products entries by the given product id.
     *
     * @param \CI_DB_query_builder $db        Database access instance.
     * @param \IdType              $productId Related product id.
     *
     * @return $this|\ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    private function _removeProductContentProductsEntries(CI_DB_query_builder $db, IdType $productId)
    {
        $db->delete('product_content_products', ['product_id' => $productId->asInt()]);

        return $this;
    }


    /**
     * Removes product content resource entries by the given product content description ids.
     *
     * @param \CI_DB_query_builder $db     Database access instance.
     * @param array                $pcdIds Related product content description ids.
     *
     * @return $this|\ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    private function _removeProductContentResourceEntries(CI_DB_query_builder $db,
                                                          array $pcdIds)
    {
        foreach($pcdIds as $productContentDescriptionId)
        {
            $db->delete('product_content_resources',
                        ['product_content_description_id' => $productContentDescriptionId]);
        }

        return $this;
    }


    /**
     * Removes product content description entries by the given product content id.
     *
     * @param \CI_DB_query_builder $db   Database access instance.
     * @param int                  $pcId Related product content id.
     *
     * @return $this|\ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    private function _removeProductContentDescriptionEntries(CI_DB_query_builder $db, $pcId)
    {
        $db->delete('product_content_descriptions', ['product_content_id' => $pcId]);

        return $this;
    }


    /**
     * Determines the product content description ids that are used as indicator to remove
     * the right data sets from the product_content_resources table.
     *
     * @param \CI_DB_query_builder $db               Database access instance.
     * @param int                  $productContentId Product content id to be removed.
     *
     * @return array Product content description ids or an empty array.
     */
    private function _determinePcdIdsToBeRemovedInPcr(CI_DB_query_builder $db, $productContentId)
    {
        $productContentDescriptionIds = [];
        $pcdDataSet                   = $db->where('product_content_id', $productContentId)
                                           ->get('product_content_descriptions')
                                           ->result_array();

        foreach($pcdDataSet as $productContentDescription)
        {
            $productContentDescriptionIds[] = (int)$productContentDescription['id'];
        }

        return $productContentDescriptionIds;
    }


    /**
     * Determines the product content ids that should be removed by the given product id.
     *
     * @param \IdType              $productId Id of related product of entries that should be removed.
     * @param \CI_DB_query_builder $db        Database access instance.
     *
     * @return array Ids of product contents to be removed, if there are any.
     */
    private function _determinePcIdToBeRemoved(IdType $productId, CI_DB_query_builder $db)
    {
        $pcIds      = [];
        $pcpDataSet = $db->where('product_id', $productId->asInt())->get('product_content_products')->result_array();

        foreach($pcpDataSet as $productContentProduct)
        {
            $pcIds[] = (int)$productContentProduct['product_content_id'];
        }
        $productContentIds = [];

        // determine product content ids, which are only used by the product to be removed
        foreach($pcIds as $productContentId)
        {
            // if no matches are found, the product content entry for that id should be removed
            $resultSet = $db->where('product_id != ' . $productId->asInt())
                            ->where('product_content_id', $productContentId)
                            ->get('product_content_products')
                            ->result_array();

            if(count($resultSet) === 0)
            {
                $productContentIds[] = (int)$productContentId;
            }
        }

        return $productContentIds;
    }


    /**
     * Deletes unused product content files from storage.
     *
     * @param int                         $productContentIdToBeRemoved
     * @param \CI_DB_query_builder        $db
     * @param \ProductsContentFileStorage $productsContentFileStorage
     *
     * @return $this
     */
    private function _removeUnusedProductContentFiles($productContentIdToBeRemoved,
                                                      CI_DB_query_builder $db,
                                                      ProductsContentFileStorage $productsContentFileStorage)
    {
        $productContentResourceData = $db->select('pcr.resource as file')
                                         ->distinct()
                                         ->from('product_contents as pc')
                                         ->join('product_content_descriptions as pcd', 'pc.id = pcd.product_content_id')
                                         ->join('product_content_resources as pcr',
                                                'pcd.id = pcr.product_content_description_id')
                                         ->join('product_content_types as pct', 'pct.id = pcr.product_content_types_id')
                                         ->where('pc.id', $productContentIdToBeRemoved)
                                         ->where('pct.name', 'file')
                                         ->where('pcr.resource != ""')
                                         ->get()
                                         ->result_array();

        foreach($productContentResourceData as $productContentResource)
        {
            $b = $db->from('product_content_resources')
                    ->where('resource', $productContentResource['file'])
                    ->get()
                    ->result_array();

            if(count($b) === 1)
            {
                $productsContentFileStorage->deleteFile(new FilenameStringType($productContentResource['file']));
            }
        }

        return $this;
    }


    /**
     * Removes property combination images.
     *
     * @param \IdType $combinationId Combination id of images to be removed.
     *
     * @return $this|ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    public function propertyCombinationImages(IdType $combinationId)
    {
        $files = glob(DIR_FS_CATALOG_IMAGES . 'product_images/properties_combis_images/' . $combinationId->asInt()
                      . '_*') ? : [];
        foreach($files as $file)
        {
            file_exists($file) ? unlink($file) : null;
        }

        return $this;
    }


    /**
     * Reset caches for categories and 'also_purchased', if cache is used.
     *
     * @return $this|ProductRepositoryDeleteHelper Same instance for chained method calls.
     */
    public function resetCategoriesAndAlsoPurchasedCache()
    {
        if(USE_CACHE == 'true')
        {
            xtc_reset_cache_block('categories');
            xtc_reset_cache_block('also_purchased');
        }

        return $this;
    }
}