Пример #1
0
 /**
  * Import ranking data received from keyword servers
  * @param array|string $ranking_data Ranking data (array of json encoded items)
  * @return bool result
  */
 public function import_ranking_data($ranking_data, $cron_job, $search_term_group_id = null, $site_id = null, $product_list_item = null)
 {
     $this->load->model('ranking_model');
     $this->load->model('sites_model');
     $this->load->library('price');
     $this->load->library('variant');
     $this->load->library('SalesEstimator/AmazonFba');
     $this->load->library('reseller');
     $find_entity = function (&$entites, $by) {
         if (is_array($entites)) {
             foreach ($entites as $entity) {
                 $it_is = null;
                 foreach ($by as $key => $value) {
                     $hit = false;
                     if (property_exists($entity, $key)) {
                         $hit = is_null($value) ? $entity->{$key} === $value : $entity->{$key} == $value;
                     }
                     $it_is = (is_null($it_is) ? true : $it_is) && $hit;
                 }
                 if ($it_is) {
                     return $entity;
                 }
             }
         }
         return null;
     };
     $imported_count = 0;
     $ranking_data = is_array($ranking_data) ? $ranking_data : explode("\n", $ranking_data);
     // json decode results
     $is_single_result = false;
     $ranking_data = array_values(array_filter(array_map(function ($ranking_data_item) use(&$is_single_result, $cron_job, $product_list_item) {
         $result = null;
         if (!empty($ranking_data_item)) {
             $result = json_decode($ranking_data_item);
             $last_error = json_last_error();
             if (!empty($last_error) || empty($result)) {
                 $result = null;
             } else {
                 if (empty($result->brand)) {
                     // see http://bugzilla.contentanalyticsinc.com/show_bug.cgi?id=901
                     $result->brand = "No brand";
                 }
                 if (empty($result->title) || empty($result->brand)) {
                     $result = null;
                 } elseif (empty($result->is_single_result) && (empty($result->url) || empty($cron_job->keyword))) {
                     // not is_single_result
                     $result = null;
                 } else {
                     foreach ($result as $key => &$result_val) {
                         if (is_string($result_val)) {
                             $result_val = trim($result_val);
                         }
                         if ($key === 'url') {
                             $result_val = Ranking_model::unifyAmazonUrl($result_val);
                         }
                     }
                     $is_single_result = !empty($result->is_single_result);
                 }
             }
         }
         return $result;
     }, $ranking_data)));
     $is_single_result = $is_single_result && count($ranking_data) === 1;
     if (count($ranking_data) === 0) {
         return $imported_count;
     }
     $date_of_upload = empty($cron_job->created_date) ? gmdate('Y-m-d') : date('Y-m-d', strtotime($cron_job->created_date));
     $brand_names = array();
     $urls = array();
     $prices = array();
     foreach ($ranking_data as $product_key => &$results_item) {
         if (!empty($results_item->brand) && !in_array($results_item->brand, $brand_names)) {
             $brand_names[] = $results_item->brand;
         }
         if ($is_single_result) {
             $results_item->url = $product_list_item->url;
         }
         if (!empty($results_item->url) && !in_array($results_item->url, $urls)) {
             $urls[] = $results_item->url;
         }
         if (empty($site_id)) {
             if (!empty($results_item->site) || !empty($results_item->url)) {
                 // get id of site by site name from current item. example: "site": "walmart.com" or "url": "http://www.walmart.com/ip/16609038"
                 $url_to_use = empty($results_item->site) ? $results_item->url : $results_item->site;
                 $name_fragment = empty($results_item->is_mobile_agent) ? null : 'iphone';
                 // @to-do: remove 'iphone' hardcode
                 $site_id = $this->sites_model->get_id_by_url_new($url_to_use, $name_fragment);
             }
         }
         if (!$is_single_result && !empty($results_item->price)) {
             $price_arr = $this->price->parsePrice($results_item->price);
             if (!empty($price_arr['price'])) {
                 $prices[$product_key] = array('price' => (double) $price_arr['price'], 'ranking' => (int) empty($results_item->ranking) ? 999 : $results_item->ranking);
             }
         }
     }
     // sort by price & ranking
     uasort($prices, function ($a, $b) {
         if (!empty($a['price']) && !empty($a['ranking']) && !empty($b['price']) && !empty($b['ranking'])) {
             if ($a['price'] != $b['price']) {
                 return $a['price'] > $b['price'] ? 1 : -1;
             } elseif ($a['ranking'] != $b['ranking']) {
                 return $a['ranking'] > $b['ranking'] ? 1 : -1;
             }
         }
         return 0;
     });
     // get ranking_by_price per each product (product_key => ranking_by_price)
     $ranking_by_price = array();
     $ranking_by_price_key = 1;
     foreach ($prices as $product_key => $price_and_ranking) {
         $ranking_by_price[$ranking_by_price_key++] = $product_key;
         // ranking_by_price => product_key
     }
     $ranking_by_price = array_flip($ranking_by_price);
     ksort($ranking_by_price);
     $search_terms = array();
     if (!empty($cron_job->keyword)) {
         $search_terms = $this->ranking_model->get_('search_terms', array('title' => $cron_job->keyword, 'group_id' => $search_term_group_id));
     }
     $search_term_ids = array_map(function ($search_term) {
         return $search_term->id;
     }, $search_terms);
     $ranking_brands = array();
     if (!empty($brand_names)) {
         $ranking_brands = $this->ranking_model->get_('ranking_brands', array('name' => $brand_names));
     }
     $ranking_brand_ids = array_map(function ($ranking_brand) {
         return $ranking_brand->id;
     }, $ranking_brands);
     $search_terms_brands_relations = array();
     if (($is_single_result || !empty($search_term_ids)) && !empty($ranking_brand_ids)) {
         $search_terms_brands_relations_where = array();
         if (!$is_single_result) {
             $search_terms_brands_relations_where['search_term_id'] = $search_term_ids;
         } else {
             $search_terms_brands_relations_where['search_term_id IS NULL'] = null;
         }
         $search_terms_brands_relations_where['brand_id'] = $ranking_brand_ids;
         $search_terms_brands_relations = $this->ranking_model->get_('search_terms_brands_relation', $search_terms_brands_relations_where);
     }
     $search_terms_brands_relation_ids = array_map(function ($search_terms_brands_relation) {
         return $search_terms_brands_relation->id;
     }, $search_terms_brands_relations);
     $product_urls = array();
     if (!empty($urls)) {
         $product_urls_result = $this->ranking_model->get_('product_url', array('url' => $urls));
         foreach ($product_urls_result as $product_url_result) {
             $product_urls[$product_url_result->url] = $product_url_result->id;
             // url => id
         }
     }
     $ranking_search_results_items_summary_where = array_filter(array('site_id' => $site_id, 'search_items_brands_relation_id' => $search_terms_brands_relation_ids, 'date_of_upload' => $date_of_upload));
     $ranking_search_results_items_summary = $this->ranking_model->get_('ranking_search_results_items_summary', $ranking_search_results_items_summary_where);
     $ranking_search_results_items_where = array_filter(array('site_id' => $site_id, 'search_items_brands_relation_id' => $search_terms_brands_relation_ids, 'date_of_upload' => $date_of_upload, 'url_id' => array_values($product_urls)));
     $ranking_search_results_items = $this->ranking_model->get_('ranking_search_results_items', $ranking_search_results_items_where);
     $ranking_search_results_items_ids = array_map(function ($ranking_search_results_item) {
         return $ranking_search_results_item->id;
     }, $ranking_search_results_items);
     $ranking_buyers_reviews = array();
     if (!empty($ranking_search_results_items_ids)) {
         $ranking_buyers_reviews = $this->ranking_model->get_('ranking_buyers_review_info', array('rsri_id' => $ranking_search_results_items_ids));
     }
     $total_results = 0;
     $brand_results = array();
     $on_first_page = array();
     $results_per_page = array();
     foreach ($ranking_data as $product_key => $ranking_data_item) {
         if (empty($ranking_data_item->title) || empty($ranking_data_item->brand) || empty($site_id) || empty($ranking_data_item->url)) {
             continue;
         }
         if (!$is_single_result && empty($cron_job->keyword)) {
             // not is_single_result
             continue;
         }
         // get search_term_id
         $search_term_id = null;
         if (!$is_single_result) {
             if ($search_term = $find_entity($search_terms, array('title' => $cron_job->keyword))) {
                 $search_term_id = $search_term->id;
             }
             // we don't need to create new search term
             if (empty($search_term_id)) {
                 continue;
             }
         }
         // get brand_id
         $brand_id = null;
         if ($brand = $find_entity($ranking_brands, array('name' => $ranking_data_item->brand))) {
             $brand_id = $brand->id;
         } else {
             // create new ranking_brand
             $new_ranking_brand_data = array('name' => $ranking_data_item->brand);
             $brand_id = $this->ranking_model->create_('ranking_brands', $new_ranking_brand_data);
             if ($brand_id) {
                 $ranking_brands[] = (object) array_merge(array('id' => $brand_id), $new_ranking_brand_data);
             }
         }
         if (empty($brand_id)) {
             continue;
         }
         // search_items_brands_relation_id
         $search_terms_brands_relation_id = null;
         $search_terms_brands_relation_data = array('search_term_id' => $search_term_id, 'brand_id' => $brand_id);
         $search_terms_brands_relation = $find_entity($search_terms_brands_relations, $search_terms_brands_relation_data);
         if (!empty($search_terms_brands_relation)) {
             $search_terms_brands_relation_id = $search_terms_brands_relation->id;
         } else {
             // create new search_terms_brands_relation
             $search_terms_brands_relation_id = $this->ranking_model->create_('search_terms_brands_relation', $search_terms_brands_relation_data);
             if ($search_terms_brands_relation_id) {
                 $search_terms_brands_relations[] = (object) array_merge(array('id' => $search_terms_brands_relation_id), $search_terms_brands_relation_data);
             }
         }
         if (empty($search_terms_brands_relation_id)) {
             continue;
         }
         if (empty($product_urls[$ranking_data_item->url])) {
             $productId = $this->reseller->getProductIdOrCreateByResellerIdAndSiteId($this->reseller->getIdFromUrl($ranking_data_item->url), $site_id);
             $product_url_id = $this->ranking_model->create_('product_url', array('url' => $ranking_data_item->url, 'product_id' => $productId));
             if ($product_url_id) {
                 $product_urls[$ranking_data_item->url] = $product_url_id;
             }
         }
         $url_id = empty($product_urls[$ranking_data_item->url]) ? null : $product_urls[$ranking_data_item->url];
         if (empty($url_id)) {
             continue;
         }
         // compose $new_rsri_data
         $description = null;
         if (!empty($ranking_data_item->description)) {
             $description = is_array($ranking_data_item->description) ? reset($ranking_data_item->description) : $ranking_data_item->description;
             $description = html_entity_decode($description);
         }
         $search_term_in_title = null;
         if (!empty($ranking_data_item->search_term_in_title_exactly)) {
             $search_term_in_title = 'exact';
         } elseif (!empty($ranking_data_item->search_term_in_title_interleaved)) {
             $search_term_in_title = 'interleaved';
         } elseif (!empty($ranking_data_item->search_term_in_title_partial)) {
             $search_term_in_title = 'partial';
         }
         $price = $this->price->parsePrice(empty($ranking_data_item->price) ? '' : $ranking_data_item->price);
         //  Tomorrow Jun 10 2015 scrapper will be refactored expected values (Bool)
         //  and this code should be replaced with one line
         $shipping = null;
         if (isset($ranking_data_item->shipping)) {
             if (!empty($ranking_data_item->shipping)) {
                 if (in_array($ranking_data_item->shipping, array('Available', 'Not Available'))) {
                     $shipping = $ranking_data_item->shipping == 'Available' ? 't' : 'f';
                 } else {
                     $shipping = 't';
                 }
             } else {
                 $shipping = 'f';
             }
         }
         $new_rsri_data = array('site_id' => $site_id, 'search_items_brands_relation_id' => $search_terms_brands_relation_id, 'ranking' => empty($ranking_data_item->ranking) ? null : $ranking_data_item->ranking, 'url' => $ranking_data_item->url, 'image_url' => empty($ranking_data_item->image_url) ? null : $ranking_data_item->image_url, 'title' => html_entity_decode($ranking_data_item->title), 'description' => $description, 'model' => empty($ranking_data_item->model) ? null : $ranking_data_item->model, 'upc' => empty($ranking_data_item->upc) ? null : $ranking_data_item->upc, 'locale' => empty($ranking_data_item->locale) ? null : $ranking_data_item->locale, 'date_of_upload' => $date_of_upload, 'best_seller_ranking' => !empty($ranking_data_item->best_seller_ranking) ? (int) $ranking_data_item->best_seller_ranking : (!empty($ranking_data_item->bestseller_rank) ? (int) $ranking_data_item->bestseller_rank : null), 'search_term_in_title' => $search_term_in_title, 'is_out_of_stock' => empty($ranking_data_item->is_out_of_stock) ? 'f' : 't', 'is_in_store_only' => empty($ranking_data_item->is_in_store_only) ? 'f' : 't', 'price' => empty($price['price']) ? null : number_format($price['price'], 2, '.', ''), 'currency' => $price['priceCurrency'], 'search_term' => empty($cron_job->keyword) ? null : $cron_job->keyword, 'results_per_page' => empty($ranking_data_item->results_per_page) ? null : (int) $ranking_data_item->results_per_page, 'url_id' => $url_id, 'ranking_by_price' => empty($ranking_by_price[$product_key]) ? null : $ranking_by_price[$product_key], 'prime' => !empty($ranking_data_item->prime) && in_array($ranking_data_item->prime, array('Prime', 'PrimePantry')) ? $ranking_data_item->prime : null, 'seller_category_id' => empty($ranking_data_item->department) ? null : $this->amazonfba->getCategoryIdByName($ranking_data_item->department), 'pickup_only' => empty($ranking_data_item->is_pickup_only) ? 'f' : 't', 'shipping' => $shipping);
         $this->setQuestionAnswer($ranking_data_item, $url_id);
         // check whether product exists already, if so - update it, otherwise - insert
         $rsri_search_keys = array('site_id', 'search_items_brands_relation_id', 'date_of_upload', 'url_id');
         $rsri_where = array_intersect_key($new_rsri_data, array_flip($rsri_search_keys));
         if ($ranking_search_results_item = $find_entity($ranking_search_results_items, $rsri_where)) {
             // update $ranking_search_results_item
             $rsri_id = $ranking_search_results_item->id;
             $update_rsri_data = array_diff_assoc($new_rsri_data, (array) $ranking_search_results_item);
             if (!empty($update_rsri_data)) {
                 $this->ranking_model->update_('ranking_search_results_items', $update_rsri_data, array('id' => $rsri_id));
             }
         } else {
             // insert into ranking_search_results_items
             $rsri_id = $this->ranking_model->create_('ranking_search_results_items', $new_rsri_data);
             $ranking_search_results_items[] = (object) array_merge(array('id' => $rsri_id), $new_rsri_data);
         }
         $imported_count++;
         // no matter insert or update - we count it as imported
         //  Market Place
         if (!empty($ranking_data_item->marketplace)) {
             $insertMarketplaceBatch = array();
             //  Prepare Insert Batch
             foreach ($ranking_data_item->marketplace as $marketplace) {
                 $insertMarketplaceBatch[] = array('rsri_id' => $rsri_id, 'name' => !empty($marketplace->name) ? $marketplace->name : null, 'price' => !empty($marketplace->price) ? $marketplace->price : null, 'currency' => !empty($marketplace->currency) ? $marketplace->currency : null);
             }
             $this->ranking_model->create_batch_('product_marketplace', $insertMarketplaceBatch);
         }
         //  Save Variants
         if (!empty($ranking_data_item->variants)) {
             $this->variant->save($ranking_data_item->variants, $rsri_id, $url_id);
         }
         // Save Google Shopping Sellers
         if (!empty($ranking_data_item->google_source_site)) {
             $sellersArray = json_decode($ranking_data_item->google_source_site);
             $jsonError = json_last_error();
             if (!$jsonError) {
                 $insertSellersBatch = array();
                 //  Prepare Insert Batch
                 foreach ($sellersArray as $sellerName => $seller) {
                     if (empty($sellerName)) {
                         continue;
                     }
                     $insertSellersBatch[] = array('rsri_id' => $rsri_id, 'seller_name' => !empty($sellerName) ? $sellerName : null, 'price' => !empty($seller->price) ? $seller->price : null, 'currency' => !empty($seller->currency) ? $seller->currency : null);
                 }
                 $this->ranking_model->create_batch_('google_shopping_sellers', $insertSellersBatch);
             }
         }
         // save buyer reviews
         if (!empty($ranking_data_item->buyer_reviews) && (is_array($ranking_data_item->buyer_reviews) || is_object($ranking_data_item->buyer_reviews))) {
             $buyer_reviews_data = array();
             if (is_array($ranking_data_item->buyer_reviews)) {
                 $buyer_reviews_data['total_count'] = empty($ranking_data_item->buyer_reviews[0]) ? 0 : (int) $ranking_data_item->buyer_reviews[0];
                 $buyer_reviews_data['average_num'] = empty($ranking_data_item->buyer_reviews[1]) ? 0 : (double) $ranking_data_item->buyer_reviews[1];
                 $raitings_by_stars = empty($ranking_data_item->buyer_reviews[2]) ? new stdClass() : $ranking_data_item->buyer_reviews[2];
             } else {
                 $buyer_reviews_data['total_count'] = empty($ranking_data_item->buyer_reviews->num_of_reviews) ? 0 : (int) $ranking_data_item->buyer_reviews->num_of_reviews;
                 $buyer_reviews_data['average_num'] = empty($ranking_data_item->buyer_reviews->average_rating) ? 0 : (double) $ranking_data_item->buyer_reviews->average_rating;
                 $raitings_by_stars = empty($ranking_data_item->buyer_reviews->rating_by_star) ? new stdClass() : $ranking_data_item->buyer_reviews->rating_by_star;
             }
             $buyer_reviews_data['one_star'] = empty($raitings_by_stars->{1}) ? 0 : preg_replace('|\\D|', '', $raitings_by_stars->{1});
             $buyer_reviews_data['two_star'] = empty($raitings_by_stars->{2}) ? 0 : preg_replace('|\\D|', '', $raitings_by_stars->{2});
             $buyer_reviews_data['three_star'] = empty($raitings_by_stars->{3}) ? 0 : preg_replace('|\\D|', '', $raitings_by_stars->{3});
             $buyer_reviews_data['four_star'] = empty($raitings_by_stars->{4}) ? 0 : preg_replace('|\\D|', '', $raitings_by_stars->{4});
             $buyer_reviews_data['five_star'] = empty($raitings_by_stars->{5}) ? 0 : preg_replace('|\\D|', '', $raitings_by_stars->{5});
             if (($ranking_buyers_review = $find_entity($ranking_buyers_reviews, array('rsri_id' => $rsri_id))) && !empty($ranking_buyers_review->id)) {
                 $update_buyer_reviews = array_diff_assoc($buyer_reviews_data, (array) $ranking_buyers_review);
                 if (!empty($update_buyer_reviews)) {
                     $this->ranking_model->update_('ranking_buyers_review_info', $update_buyer_reviews, array('id' => $ranking_buyers_review->id));
                 }
             } else {
                 $buyer_reviews_data['rsri_id'] = $rsri_id;
                 $ranking_buyers_review_info_id = $this->ranking_model->create_('ranking_buyers_review_info', $buyer_reviews_data);
                 $ranking_buyers_reviews[] = (object) array_merge(array('id' => $ranking_buyers_review_info_id), $buyer_reviews_data);
             }
         }
         //  Save Sponsored Links
         if (!empty($ranking_data_item->sponsored_links)) {
             $insertSponsoredLinksBatch = array();
             foreach ($ranking_data_item->sponsored_links as $link) {
                 $insertSponsoredLinksBatch[] = array('product_id' => $rsri_id, 'ad_title' => $link->ad_title, 'ad_text' => $link->ad_text, 'visible_url' => $link->visible_url, 'actual_url' => $link->actual_url);
             }
             $this->ranking_model->create_batch_('product_sponsored_links', $insertSponsoredLinksBatch);
         }
         // collect data for ranking_search_results_items_summary
         if ($total_results === 0 && !empty($ranking_data_item->total_matches)) {
             $total_results = $ranking_data_item->total_matches;
         }
         if (!array_key_exists($search_terms_brands_relation_id, $brand_results)) {
             $brand_results[$search_terms_brands_relation_id] = 0;
         }
         if (!array_key_exists($search_terms_brands_relation_id, $on_first_page)) {
             $on_first_page[$search_terms_brands_relation_id] = 0;
         }
         if (!array_key_exists($search_terms_brands_relation_id, $results_per_page)) {
             $results_per_page[$search_terms_brands_relation_id] = 0;
         }
         if (!empty($ranking_data_item->ranking)) {
             $brand_results[$search_terms_brands_relation_id]++;
             if (!empty($ranking_data_item->results_per_page)) {
                 if ((int) $ranking_data_item->ranking <= (int) $ranking_data_item->results_per_page) {
                     $on_first_page[$search_terms_brands_relation_id]++;
                 }
                 $results_per_page[$search_terms_brands_relation_id] = $ranking_data_item->results_per_page;
             }
         }
     }
     // foreach ($ranking_data as $ranking_data_item)
     if (!empty($urls)) {
         $this->ranking_model->updateAndGetUniqueProductUrls($urls, $product_urls);
     }
     // create or update summary data in ranking_search_results_items_summary table
     foreach ($brand_results as $stbr_id => $brand_result) {
         // compose on_first_page string as number_of_res_on_1st_page/results_per_page
         $on_first_page_str = empty($on_first_page[$stbr_id]) ? 0 : $on_first_page[$stbr_id];
         $on_first_page_str .= empty($results_per_page[$stbr_id]) ? '' : "/{$results_per_page[$stbr_id]}";
         $new_rsris_data = array('site_id' => $site_id, 'total_results' => $total_results, 'brand_results' => $brand_result, 'search_items_brands_relation_id' => $stbr_id, 'date_of_upload' => $date_of_upload, 'on_first_page' => $on_first_page_str);
         $rsris_search_keys = array('site_id', 'search_items_brands_relation_id', 'date_of_upload');
         $rsris_where = array_intersect_key($new_rsris_data, array_flip($rsris_search_keys));
         if ($rsris = $find_entity($ranking_search_results_items_summary, $rsris_where)) {
             $update_rsris_data = array_diff_assoc($new_rsris_data, (array) $rsris);
             if (!empty($update_rsris_data)) {
                 $this->ranking_model->update_('ranking_search_results_items_summary', $update_rsris_data, array('id' => $rsris->id));
             }
         } else {
             // create new ranking_search_results_items_summary
             $rsris_id = $this->ranking_model->create_('ranking_search_results_items_summary', $new_rsris_data);
             if ($rsris_id) {
                 $ranking_search_results_items_summary[] = (object) array_merge(array('id' => $rsris_id), $new_rsris_data);
             }
         }
     }
     return $imported_count;
 }
Пример #2
0
 /**
  * Import Search terms groups (including search terms), 'search terms groups - sites'
  * relations as json file
  */
 public function search_terms_groups_import()
 {
     session_id() || session_start();
     $result = array();
     $this->load->model('ranking_model');
     $this->load->model('alert_model');
     $file_to_get = null;
     if (isset($_FILES['file'], $_FILES['file']['error'])) {
         // uploading file
         if ($_FILES['file']['error'] == 0) {
             // resave it, to keep after this script finishes
             if ($temp_file_name = tempnam(sys_get_temp_dir(), '')) {
                 if (copy($_FILES['file']['tmp_name'], $temp_file_name)) {
                     $_SESSION['stgs_imp_tmp_file'] = $temp_file_name;
                     unset($_SESSION['stgs_imp_answers']);
                     unset($_SESSION['stgs_imp_answers_others']);
                     $file_to_get = $temp_file_name;
                 } else {
                     $result['error'] = 'Can\'t save file (writing)';
                 }
             } else {
                 $result['error'] = 'Can\'t save file (creating)';
             }
         } else {
             $this->lang->load('upload');
             $_FILES['file']['error'] = isset($_FILES['file']['error']) ? $_FILES['file']['error'] : 4;
             switch ($_FILES['file']['error']) {
                 case 1:
                     // UPLOAD_ERR_INI_SIZE
                     $result['error'] = $this->lang->line('upload_file_exceeds_limit');
                     break;
                 case 2:
                     // UPLOAD_ERR_FORM_SIZE
                     $result['error'] = $this->lang->line('upload_file_exceeds_form_limit');
                     break;
                 case 3:
                     // UPLOAD_ERR_PARTIAL
                     $result['error'] = $this->lang->line('upload_file_partial');
                     break;
                 case 4:
                     // UPLOAD_ERR_NO_FILE
                     $result['error'] = $this->lang->line('upload_no_file_selected');
                     break;
                 case 6:
                     // UPLOAD_ERR_NO_TMP_DIR
                     $result['error'] = $this->lang->line('upload_no_temp_directory');
                     break;
                 case 7:
                     // UPLOAD_ERR_CANT_WRITE
                     $result['error'] = $this->lang->line('upload_unable_to_write_file');
                     break;
                 case 8:
                     // UPLOAD_ERR_EXTENSION
                     $result['error'] = $this->lang->line('upload_stopped_by_extension');
                     break;
                 default:
                     $result['error'] = "Unknown error";
                     break;
             }
         }
     } elseif (isset($_SESSION['stgs_imp_tmp_file'])) {
         // get saved filename
         if (is_file($_SESSION['stgs_imp_tmp_file'])) {
             $file_to_get = $_SESSION['stgs_imp_tmp_file'];
         } else {
             // wipe all data, as it got outdated
             unset($_SESSION['stgs_imp_tmp_file']);
             unset($_SESSION['stgs_imp_answers']);
             unset($_SESSION['stgs_imp_answers_others']);
         }
     }
     if ($file_to_get) {
         if (($stgs_imp = json_decode(file_get_contents($file_to_get), true)) && is_array($stgs_imp)) {
             if (($answer = $this->input->post('answer')) && isset($answer['group_name'], $answer['action']) && in_array($answer['action'], array('overwrite', 'add'))) {
                 // get user's answers
                 $_SESSION['stgs_imp_answers'][strtolower($answer['group_name'])] = $answer['action'];
                 if (isset($answer['others']) && $answer['others']) {
                     $_SESSION['stgs_imp_answers_others'] = $answer['action'];
                 }
             }
             $stgs_imp_answers = isset($_SESSION['stgs_imp_answers']) ? $_SESSION['stgs_imp_answers'] : array();
             $stgs_imp_answers_others = isset($_SESSION['stgs_imp_answers_others']) ? $_SESSION['stgs_imp_answers_others'] : null;
             $entites = array();
             $stgs_cmp = $this->get_search_terms_groups_for_export($entites);
             // search_terms_groups for comparison
             $stgs_cmp_names = array_combine(array_map('strtolower', array_keys($stgs_cmp)), array_keys($stgs_cmp));
             $stgs_to_create = array();
             $stgs_to_overwrite = array();
             $stgs_to_add = array();
             $stgs_to_populate = array();
             /**
              * find entity by params
              * @param string $entity_name entity type (search_terms_groups, sites, groups_sites)
              * @param array $by array of params to search by
              * @param bool $cs whether search should be case sensitive
              * @param string $trim characters that need to be stripped
              */
             $find_entity = function ($entity_type, $by, $cs = false, $trim = '') use($entites) {
                 if (isset($entites[$entity_type])) {
                     foreach ($entites[$entity_type] as $entity) {
                         $it_is = null;
                         foreach ($by as $key => $value) {
                             if (!isset($entity[$key])) {
                                 return null;
                             } else {
                                 $val1 = trim($entity[$key], $trim);
                                 $val2 = trim($value, $trim);
                                 $cmp_f = $cs ? 'strcmp' : 'strcasecmp';
                                 $it_is = (is_null($it_is) ? true : $it_is) && $cmp_f($val1, $val2) === 0;
                             }
                         }
                         if ($it_is) {
                             return $entity;
                         }
                     }
                 }
                 return null;
             };
             foreach ($stgs_imp as $stg_imp_name => $stg_imp) {
                 $stg_imp_name_low = strtolower($stg_imp_name);
                 if (!isset($stgs_cmp_names[$stg_imp_name_low])) {
                     $stgs_to_create[$stg_imp_name] = $stg_imp;
                 } else {
                     $stg_cmp = $stgs_cmp[$stgs_cmp_names[$stg_imp_name_low]];
                     if ($this->search_terms_groups_compare($stg_imp, $stg_cmp)) {
                         continue;
                     }
                     if (isset($stgs_imp_answers[$stg_imp_name_low]) || $stgs_imp_answers_others) {
                         $action = isset($stgs_imp_answers[$stg_imp_name_low]) ? $stgs_imp_answers[$stg_imp_name_low] : $stgs_imp_answers_others;
                         if ($action == 'overwrite') {
                             // check whether existing search terms are used in alerts
                             // get search terms ids
                             $search_terms_ids = array();
                             foreach ($stg_imp['search_terms'] as $search_term_title) {
                                 $search_term = $find_entity('search_terms', array('title' => $search_term_title, 'group_name' => $stg_imp_name));
                                 if (!empty($search_term['id'])) {
                                     $search_terms_ids[] = $search_term['id'];
                                 }
                             }
                             if (!empty($search_terms_ids)) {
                                 $will_break_alert = false;
                                 $alerts = $this->alert_model->getRecords();
                                 foreach ($alerts as $alert) {
                                     $alert->options = unserialize($alert->options);
                                     $alert_search_terms_ids = array();
                                     if (!empty($alert->options['rank_term']['all_checked_checkboxes'])) {
                                         foreach ($alert->options['rank_term']['all_checked_checkboxes'] as $gr_id => $gr) {
                                             $gr_search_terms_ids = empty($gr['id']) ? array() : $gr['id'];
                                             $alert_search_terms_ids = array_merge($alert_search_terms_ids, $gr_search_terms_ids);
                                         }
                                     }
                                     $array_intersect = array_intersect($search_terms_ids, $alert_search_terms_ids);
                                     if (!empty($array_intersect)) {
                                         $will_break_alert = $alert->name;
                                         break;
                                     }
                                 }
                                 if ($will_break_alert) {
                                     $result['question'] = array('alert_name' => $will_break_alert, 'group_name' => $stg_imp_name);
                                 }
                             }
                             $stgs_to_overwrite[$stg_imp_name] = $stg_imp;
                         } elseif ($action == 'add') {
                             $stgs_to_add[$stg_imp_name] = $stg_imp;
                         }
                     } else {
                         $result['question'] = array('group_name' => $stg_imp_name);
                         break;
                     }
                 }
             }
             if (!isset($result['question'])) {
                 // make import
                 foreach ($stgs_to_add as $stg_name => $stg) {
                     // find data to be added
                     if ($stg_entity = $find_entity('search_terms_groups', array('name' => $stg_name))) {
                         $stg_id = $stg_entity['id'];
                         $stg_cmp = $stgs_cmp[$stgs_cmp_names[strtolower($stg_name)]];
                         $search_terms_batch = array();
                         $stg_search_terms = array_combine(array_map('strtolower', $stg['search_terms']), $stg['search_terms']);
                         $stg_cmp_search_terms = array_combine(array_map('strtolower', $stg_cmp['search_terms']), $stg_cmp['search_terms']);
                         foreach (array_diff_key($stg_search_terms, $stg_cmp_search_terms) as $search_term) {
                             $search_terms_batch[] = array('title' => $search_term, 'group_id' => $stg_id);
                         }
                         if ($search_terms_batch) {
                             $this->ranking_model->create_batch_('search_terms', $search_terms_batch);
                         }
                         $prepare_sites = function ($site) {
                             $site['url'] = trim($site['url'], '/');
                             return strtolower(serialize($site));
                         };
                         $stg_sites = array_combine(array_map($prepare_sites, $stg['sites']), $stg['sites']);
                         $stg_cmp_sites = array_combine(array_map($prepare_sites, $stg_cmp['sites']), $stg_cmp['sites']);
                         $sites_to_add = array_diff_key($stg_sites, $stg_cmp_sites);
                         $groups_sites_batch = array();
                         foreach ($sites_to_add as $site_to_add) {
                             if ($site_entity = $find_entity('sites', $site_to_add, false, ' /')) {
                                 $site_id = $site_entity['id'];
                             } else {
                                 $site_data = array('name' => '', 'url' => '', 'image_url' => '', 'site_type' => 0);
                                 $site_data = array_merge($site_data, array_intersect_key($site_to_add, $site_data));
                                 $site_id = $this->ranking_model->create_('sites', $site_data);
                             }
                             $groups_sites_batch[] = array('group_id' => $stg_id, 'site_id' => $site_id);
                         }
                         if ($groups_sites_batch) {
                             $this->ranking_model->create_batch_('groups_sites', $groups_sites_batch);
                         }
                     }
                 }
                 foreach ($stgs_to_overwrite as $stg_name => $stg) {
                     // delete current stg's all corresponding data
                     if ($stg_entity = $find_entity('search_terms_groups', array('name' => $stg_name))) {
                         $stg['id'] = $stg_entity['id'];
                         $this->ranking_model->delete_('search_terms', array('group_id' => $stg['id']));
                         $this->ranking_model->delete_('groups_sites', array('group_id' => $stg['id']));
                         $stgs_to_populate[$stg_name] = $stg;
                     }
                 }
                 foreach ($stgs_to_create as $stg_name => $stg) {
                     // create stg & set it up for fetching keyword data by cron
                     if ($stg['id'] = $this->ranking_model->create_('search_terms_groups', array('name' => $stg_name))) {
                         $this->ranking_model->addKeywordGroupCronJob($stg['id'], $this->ranking_model->CRON_PERIOD_DAY);
                     }
                     $stgs_to_populate[$stg_name] = $stg;
                 }
                 foreach ($stgs_to_populate as $stg_name => $stg) {
                     // populate stg with all corresponding data
                     if (!isset($stg['id'])) {
                         continue;
                     }
                     $search_terms_batch = array();
                     foreach ($stg['search_terms'] as $search_term) {
                         $search_terms_batch[] = array('title' => $search_term, 'group_id' => $stg['id']);
                     }
                     if ($search_terms_batch) {
                         $this->ranking_model->create_batch_('search_terms', $search_terms_batch);
                     }
                     $groups_sites_batch = array();
                     foreach ($stg['sites'] as $site) {
                         if ($site_entity = $find_entity('sites', $site, false, ' /')) {
                             $site_id = $site_entity['id'];
                         } else {
                             $site_data = array('name' => '', 'url' => '', 'image_url' => '', 'site_type' => 0);
                             $site_data = array_merge($site_data, array_intersect_key($site, $site_data));
                             $site_id = $this->ranking_model->create_('sites', $site_data);
                         }
                         $groups_sites_batch[] = array('group_id' => $stg['id'], 'site_id' => $site_id);
                     }
                     if ($groups_sites_batch) {
                         $this->ranking_model->create_batch_('groups_sites', $groups_sites_batch);
                     }
                 }
                 $result['result'] = 'Search terms groups were inported successfully';
             }
         } else {
             $result['error'] = json_last_error_msg() ? 'JSON error: ' . json_last_error_msg() : 'Wrong data format (not an array)';
         }
     } else {
         $result['error'] = 'No file';
     }
     $this->output->set_content_type('application/json')->set_output(json_encode($result));
 }