バリューコマースウェブサービストラベルAPIサンプル　ドキュメンテーション: Pagination.php ソースファイル

00001 <?php
00002 /*
00003  * Pagination.php
00004  *
00005  * Copyright (c)2010 ValueCommerce, Co. Ltd.
00006  */
00007 
00015 class Pagination {
00016 
00018         private $view;
00019 
00021         private $resultCount;
00022 
00024         private $startIdx;
00025 
00027         private $endIdx;
00028 
00030         private $pageCount;
00031 
00033         private $currentPage;
00034 
00036         private $maxPages;
00037 
00039         private $isMobile = false;
00040 
00042         private $sort_order;
00043 
00045         private $sort_by;       
00046         
00054         public function __construct(&$view, $maxPages, $response, $isMobile=false) {
00055 
00056                 if (gettype($response) != 'object' || get_class($response) != 'SimpleXMLElement') {
00057                         $this->template = null;
00058                         return;
00059                 }
00060 
00061                 $this->view = $view;
00062                 $this->isMobile = $isMobile;
00063                 $this->maxPages = $maxPages;
00064 
00065                 /*
00066                  * 現在のページを取得
00067                  */
00068                 $currentPageElement = $response->xpath('/rss/channel/vc_page');
00069                 if (count($currentPageElement)) {
00070                         $currentPage = (int)$currentPageElement[0];
00071                 } else {
00072                         $currentPage = 1;
00073                 }
00074 
00075                 /*
00076                  * 検索結果カウントを取得
00077                  */
00078                 $resultCountElement = $response->xpath('/rss/channel/vc_resultCount');
00079                 if (count($resultCountElement)) {
00080                         $resultCount = (int)$resultCountElement[0];
00081                 } else {
00082                         $resultCount = 0;
00083                 }
00084 
00085                 /*
00086                  * ページカウントを取得
00087                  */
00088                 $pageCountElement = $response->xpath('/rss/channel/vc_pageCount');
00089                 if (count($pageCountElement)) {
00090                         $pageCount = (int)$pageCountElement[0];
00091                 } else {
00092                         $pageCount = 1;
00093                 }
00094 
00095                 /*
00096                  * 1ページ中の検索結果数を取得
00097                  */
00098                 $resultsPerPageElement = $response->xpath('/rss/channel/vc_resultPerPage');
00099                 if (count($resultsPerPageElement)) {
00100                         $resultsPerPage = (int)$resultsPerPageElement[0];
00101                 } else {
00102                         $resultsPerPage = 0;
00103                 }
00104 
00105                 /*
00106                  * ソート順（昇順・降順）を取得
00107                  */
00108                 $resultSortOrderElement = $response->xpath('/rss/channel/vc_sortOrder');
00109                 if (count($resultSortOrderElement)) {
00110                         $resultSortOrder = (int)$resultSortOrderElement[0];
00111                 } else {
00112                         $resultSortOrder = 'asc';
00113                 }
00114 
00115          
00116                 /* ソートタイプ（minprice・maxprice）を取得
00117                  */
00118                 $resultSortByElement = $response->xpath('/rss/channel/vc_sortBy');
00119                 if (count($resultSortByElement)) {
00120                         $resultSortBy = (int)$resultSortByElement[0];
00121                 } else {
00122                         $resultSortBy = 'minprice';
00123                 }               
00124                 
00125                 /*
00126                  * 統計表示に使う値を計算
00127                  */
00128                 $this->currentPage = $currentPage;
00129                 $this->pageCount = $pageCount;
00130                 $this->resultCount = $resultCount;
00131                 $this->sort_order = $resultSortOrder;
00132                 $this->sort_by = $resultSortBy;
00133                 $this->startIdx = ($currentPage - 1) * $resultsPerPage + 1;
00134                 $this->endIdx = $currentPage * $resultsPerPage;
00135                 if ($this->endIdx > $resultCount) {
00136                         $this->endIdx = $resultCount;
00137                 }
00138         }
00139 
00147         private function makeATag($page,$text, $extra = null) {
00148                 global $_GET;
00149 
00150                 $link = '?page=' . (string)$page;
00151 
00153                 foreach($_GET as $name => $value) {
00154                         if ($name == 'page'
00155                                 || ($extra && array_key_exists($name, $extra))) {
00156                                 continue;
00157                         }
00158 
00159                         $link .= '&' . $name . '=' . $value;
00160                 }
00161 
00162                 if ($extra) {
00163                         foreach ($extra as $name => $value) {
00164                                 $link .= '&' . $name . '=' . $value;
00165                         }
00166                 }
00167 
00168                 return '<a href="' . $link . '">' . $text . '</a>&nbsp;';
00169         }
00170 
00176         private function makeDisabledATag($text) {
00177                 return '<a class="disabled">' . $text . '</a>';
00178         }
00179 
00187         public function makeJumpToPageControls($pageFrom,$pageTo,$currentPage) {
00188 
00189                 $controls = '';
00190 
00191                 for ($page = (int)$pageFrom;$page <= (int)$pageTo;$page++) {
00192                         if ($currentPage != $page) {
00193                                 $controls .= $this->makeATag($page,(string)$page). "&nbsp;";
00194                         } else {
00195                                 $controls .= (string)$page . "&nbsp;&nbsp;";
00196                         }
00197                 }
00198 
00199                 return $controls;
00200         }
00201 
00203         protected function renderControls() {
00204                 /*
00205                  * コントロール部分の文字列を生成
00206                  */
00207 
00208                 $controls = "";
00209 
00210                 if ($this->isMobile) {
00211                         if ($this->currentPage != 1) {
00212                                 $controls .= $this->makeATag($this->currentPage - 1,'前の10件');
00213                         } else {
00214                                 $controls .= $this->makeDisabledATag('前の10件') . '&nbsp;';
00215                         }
00216 
00217                         $controls .= '｜'.'&nbsp;';
00218 
00219                         if ($this->currentPage != $this->pageCount) {
00220                                 $controls .= $this->makeATag($this->currentPage + 1,'次の10件 ');
00221                         } else {
00222                                 $controls .= $this->makeDisabledATag('次の10件 ') . '&nbsp;';
00223                         }
00224                 } else {
00225                         if ($this->currentPage != 1) {
00226                                 $controls .= $this->makeATag(1,'最初');
00227                         } else {
00228                                 $controls .= $this->makeDisabledATag('最初');
00229                         }
00230                         $controls .= '｜'.'&nbsp;';
00231 
00232                         if ($this->currentPage != 1) {
00233                                 $controls .= $this->makeATag($this->currentPage - 1,'前へ');
00234                         } else {
00235                                 $controls .= $this->makeDisabledATag('前へ');
00236                         }
00237 
00238                         $controls .= '｜'. '&nbsp;';
00239 
00240                         /*
00241                          * 現在のページを中心にして合計$maxPages個のページについて、 直接移動用のページ数のリストを作ります。
00242                          */
00243 
00244                         if ($this->maxPages >= $this->pageCount) {
00245 
00246                                 /* [存在するページ数]が、[最大表示ページ数] を下回っている、または同数の場合 */
00247 
00248                                 $controls .= $this->makeJumpToPageControls(1,$this->pageCount,$this->currentPage);
00249                         } else if ($this->currentPage <= $this->maxPages / 2 + 1) {
00250 
00251                                 /* 現在のページが　1 から[最大表示ページ数]/2までの間の場合 */
00252 
00253                                 $controls .= $this->makeJumpToPageControls(1,$this->maxPages,$this->currentPage);
00254                                 $controls .= '...';
00255                         } else if ($this->currentPage > $this->pageCount - $this->maxPages / 2) {
00256 
00257                                 /* 現在のページが、[存在するページ数] - [最大表示ページ数]/2 から、[存在するページ数]までの間の場合 */
00258 
00259                                 $controls .= '...'. '&nbsp;&nbsp;';
00260                                 $controls .= $this->makeJumpToPageControls(
00261                                                                                         $this->pageCount - $this->maxPages + 1,
00262                                                                                         $this->pageCount,
00263                                                                                         $this->currentPage
00264                                                                                         );
00265                         } else {
00266 
00267                                 /* 通常はこちら */
00268 
00269                                 $controls .= '...'. '&nbsp;&nbsp;';
00270                                 $startPage = ceil($this->currentPage - $this->maxPages/2);
00271                                 $controls .= $this->makeJumpToPageControls(
00272                                                                                         $startPage,
00273                                                                                         $startPage + $this->maxPages - 1, 
00274                                                                                         $this->currentPage
00275                                                                                         );
00276                                 $controls .= '...'. '&nbsp;';
00277                         }
00278 
00279                         $controls .= '｜'.'&nbsp;';
00280 
00281                         if ($this->currentPage != $this->pageCount) {
00282                                 $controls .= $this->makeATag($this->currentPage + 1,'次へ');
00283                         } else {
00284                                 $controls .= $this->makeDisabledATag('次へ');
00285                         }
00286 
00287                         $controls .= '｜'.'&nbsp;';
00288 
00289                         if ($this->currentPage != $this->pageCount) {
00290                                 $controls .= $this->makeATag($this->pageCount,'最後');
00291                         } else {
00292                                 $controls .= $this->makeDisabledATag('最後');
00293                         }
00294                 }
00295 
00296                 return $controls;
00297         }
00298 
00305         private function renderSortByPrice($html) {
00306                 
00307                 $sortByMinPrice = $this->makeATag($this->currentPage,'料金が安い順',
00308                                 array('sort_by' => 'minprice', 'sort_order' => 'asc'));
00309                 $sortByMaxPrice = $this->makeATag($this->currentPage,'料金が高い順',
00310                                 array('sort_by' => 'minprice', 'sort_order' => 'desc'));
00311                 
00312 //              if($this->sort_order == 'desc' || $this->sort_by='maxprice'){
00313 //                      $sortByMinPrice = $this->makeATag($this->currentPage,'料金が安い順',
00314 //                              array('sort_by' => 'minprice', 'sort_order' => 'asc'));
00315 //                      $sortByMaxPrice = $this->makeDisabledATag('料金が高い順');
00316 //              }
00317 //              else
00318 //              {
00319 //                      $sortByMinPrice = $this->makeDisabledATag('料金が安い順');
00320 //                      $sortByMaxPrice = $this->makeATag($this->currentPage,'料金が高い順',
00321 //                              array('sort_by' => 'maxprice', 'sort_order' => 'desc'));
00322 //              }
00323                 
00324                 $html = str_replace('${SORT_BY_MIN_PRICE}', $sortByMinPrice, $html);
00325                 $html = str_replace('${SORT_BY_MAX_PRICE}', $sortByMaxPrice, $html);
00326 
00327                 return $html;
00328         }
00329 
00336         private function renderSortByRelevance($html) {
00337                 $sortByRelevance = $this->makeATag($this->currentPage,'高い',
00338                         array('sort_by' => 'score', 'sort_order' => 'desc'));
00339 
00340                 $html = str_replace('${SORT_BY_RELEVANCE}', $sortByRelevance, $html);
00341 
00342                 return $html;
00343         }
00344 
00350         public function toString() {
00351                 if (!$this->view) {
00352                         return '';
00353                 }
00354 
00355                 $html = $this->view;
00356                 $html = str_replace('${TOTAL_COUNT}',(string)$this->resultCount, $html);
00357                 $html = str_replace('${START}',(string)$this->startIdx, $html);
00358                 $html = str_replace('${END}',(string)$this->endIdx, $html);
00359                 $html = str_replace('${CONTROLS}',$this->renderControls(), $html);
00360 
00361                 $html = $this->renderSortByPrice($html);
00362                 
00363 
00364                 if ($this->isMobile) {
00365                         $html = $this->renderSortByPrice($html);
00366                         $html = $this->renderSortByRelevance($html);
00367                 }
00368 
00369                 return $html;
00370         }
00371 }
00372 ?>