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Add new sorting and filtering options to ebook browse page

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This commit is contained in:
Alex Cabal 2020-12-07 19:31:12 -06:00
parent 27f7862ae9
commit 1010b287a6
13 changed files with 786 additions and 442 deletions
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3
www/ebooks/author.php
View file

@ -24,8 +24,7 @@ catch(\Exception $ex){
?><?= Template::Header(['title' => 'Ebooks by ' . strip_tags($ebooks[0]->AuthorsHtml), 'highlight' => 'ebooks', 'description' => 'All of the Standard Ebooks ebooks by ' . strip_tags($ebooks[0]->AuthorsHtml)]) ?>
<main class="ebooks">
<h1>Ebooks by <?= $ebooks[0]->AuthorsHtml ?></h1>
<?= Template::SearchForm() ?>
<?= Template::EbookGrid(['ebooks' => $ebooks]) ?>
<?= Template::EbookGrid(['ebooks' => $ebooks, 'view' => VIEW_GRID]) ?>
<?= Template::ContributeAlert() ?>
</main>
<?= Template::Footer() ?>

146
www/ebooks/index.php
View file

@ -5,10 +5,12 @@ use function Safe\preg_replace;
try{
$page = HttpInput::GetInt('page', 1);
$perPage = HttpInput::GetInt('per-page', EBOOKS_PER_PAGE);
$query = HttpInput::GetString('query', false);
$tag = HttpInput::GetString('tag', false);
$tags = HttpInput::GetArray('tags', []);
$collection = HttpInput::GetString('collection', false);
$sort = HttpInput::GetString('sort', false, SORT_NEWEST);
$view = Httpinput::GetString('view', false);
$sort = HttpInput::GetString('sort', false);
$pages = 0;
$totalEbooks = 0;
@ -16,30 +18,38 @@ try{
$page = 1;
}
if($sort != SORT_AUTHOR_ALPHA && $sort != SORT_NEWEST && $sort != SORT_READING_EASE && $sort != SORT_LENGTH){
$sort = SORT_NEWEST;
if($perPage != EBOOKS_PER_PAGE && $perPage != 24 && $perPage != 48){
$perPage = EBOOKS_PER_PAGE;
}
if($query !== null){
$ebooks = Library::Search($query);
$pageTitle = 'Search Standard Ebooks';
$pageDescription = 'Search results';
$pageHeader = 'Search Ebooks';
// If we're passed string values that are the same as the defaults,
// set them to null so that we can have cleaner query strings in the navigation footer
if($view !== null){
$view = mb_strtolower($view);
}
elseif($tag !== null){
$tag = strtolower(str_replace('-', ' ', $tag));
$ebooks = Library::GetEbooksByTag($tag);
$pageTitle = 'Browse ebooks tagged “' . Formatter::ToPlainText($tag) . '”';
$pageDescription = 'Page ' . $page . ' of ebooks tagged “' . Formatter::ToPlainText($tag) . '”';
$pageHeader = 'Ebooks tagged “' . Formatter::ToPlainText($tag) . '”';
$pages = ceil(sizeof($ebooks) / EBOOKS_PER_PAGE);
$totalEbooks = sizeof($ebooks);
$ebooks = array_slice($ebooks, ($page - 1) * EBOOKS_PER_PAGE, EBOOKS_PER_PAGE);
if($sort !== null){
$sort = mb_strtolower($sort);
}
elseif($collection !== null){
if($view === 'grid'){
$view = null;
}
if($sort === 'newest'){
$sort = null;
}
if($query === ''){
$query = null;
}
if(sizeof($tags) == 1 && mb_strtolower($tags[0]) == 'all'){
$tags = [];
}
// Are we looking at a collection?
if($collection !== null){
$ebooks = Library::GetEbooksByCollection($collection);
$collectionObject = null;
// Get the *actual* name of the collection, in case there are accent marks (like "Arsène Lupin")
@ -71,32 +81,47 @@ try{
}
}
else{
$ebooks = Library::FilterEbooks($query, $tags, $sort);
$pageTitle = 'Browse Standard Ebooks';
$pageHeader = 'Browse Ebooks';
$ebooks = Library::GetEbooks($sort);
}
$pages = ceil(sizeof($ebooks) / EBOOKS_PER_PAGE);
$pages = ceil(sizeof($ebooks) / $perPage);
$totalEbooks = sizeof($ebooks);
$totalEbooks = sizeof($ebooks);
$ebooks = array_slice($ebooks, ($page - 1) * EBOOKS_PER_PAGE, EBOOKS_PER_PAGE);
$ebooks = array_slice($ebooks, ($page - 1) * $perPage, $perPage);
$pageDescription = 'Page ' . $page . ' of the Standard Ebooks ebook library, sorted ';
switch($sort){
case SORT_NEWEST:
$pageDescription .= 'by newest ebooks first.';
break;
case SORT_AUTHOR_ALPHA:
$pageDescription .= 'alphabetically by author name.';
break;
case SORT_READING_EASE:
$pageDescription .= 'by easiest ebooks first.';
break;
case SORT_LENGTH:
$pageDescription .= 'by shortest ebooks first.';
break;
if($page > 1){
$pageTitle .= ', page ' . $page;
}
$pageDescription = 'Page ' . $page . ' of the Standard Ebooks ebook library';
$queryString = '';
if($collection === null){
if($query != ''){
$queryString .= '&amp;query=' . urlencode($query);
}
foreach($tags as $tag){
$queryString .= '&amp;tags[]=' . urlencode($tag);
}
if($view !== null){
$queryString .= '&amp;view=' . urlencode($view);
}
if($sort !== null){
$queryString .= '&amp;sort=' . urlencode($sort);
}
if($perPage !== EBOOKS_PER_PAGE){
$queryString .= '&amp;per-page=' . urlencode($perPage);
}
}
$queryString = preg_replace('/^&amp;/ius', '', $queryString);
}
catch(\Exception $ex){
http_response_code(404);
@ -106,50 +131,27 @@ catch(\Exception $ex){
?><?= Template::Header(['title' => $pageTitle, 'highlight' => 'ebooks', 'description' => $pageDescription]) ?>
<main class="ebooks">
<h1><?= $pageHeader ?></h1>
<?= Template::SearchForm(['query' => $query]) ?>
<? if($collection === null){ ?>
<?= Template::SearchForm(['query' => $query, 'tags' => $tags, 'sort' => $sort, 'view' => $view, 'perPage' => $perPage]) ?>
<? } ?>
<? if(sizeof($ebooks) == 0){ ?>
<p class="no-results">No ebooks matched your search. You can try different search terms, or <a href="/ebooks">browse all of our ebooks</a>.</p>
<p class="no-results">No ebooks matched your filters. You can try different filters, or <a href="/ebooks">browse all of our ebooks</a>.</p>
<? }else{ ?>
<?= Template::EbookGrid(['ebooks' => $ebooks]) ?>
<?= Template::EbookGrid(['ebooks' => $ebooks, 'view' => $view]) ?>
<? } ?>
<? if(sizeof($ebooks) > 0 && $query === null && $tag === null && $collection === null){ ?>
<? if(sizeof($ebooks) > 0){ ?>
<nav>
<a<? if($page > 1){ ?> href="/ebooks/<? if($page - 1 > 1){ ?>?page=<?= $page - 1 ?><? } ?><? if($sort != SORT_NEWEST){ ?><? if($page - 1 <= 1){ ?>?<? }else{ ?>&amp;<? } ?>sort=<?= $sort ?><? } ?>" rel="previous"<? }else{ ?> aria-disabled="true"<? } ?>>Back</a>
<a<? if($page > 1){ ?> href="/ebooks/?page=<?= $page - 1 ?><? if($queryString != ''){ ?>&amp;<?= $queryString ?><? } ?>" rel="previous"<? }else{ ?> aria-disabled="true"<? } ?>>Back</a>
<ol>
<? for($i = 1; $i < $pages + 1; $i++){ ?>
<li<? if($page == $i){ ?> class="highlighted"<? } ?>><a href="/ebooks/<? if($i - 1 >= 1){ ?>?page=<?= $i ?><? } ?><? if($sort != SORT_NEWEST){ ?><? if($i - 1 < 1){ ?>?<? }else{ ?>&amp;<? } ?>sort=<?= $sort ?><? } ?>"><?= $i ?></a></li>
<li<? if($page == $i){ ?> class="highlighted"<? } ?>><a href="/ebooks/?page=<?= $i ?><? if($queryString != ''){ ?>&amp;<?= $queryString ?><? } ?>"><?= $i ?></a></li>
<? } ?>
</ol>
<a<? if($page < ceil($totalEbooks / EBOOKS_PER_PAGE)){ ?> href="/ebooks/?page=<?= $page + 1 ?><? if($sort != SORT_NEWEST){ ?>&amp;sort=<?= $sort ?><? } ?>" rel="next"<? }else{ ?> aria-disabled="true"<? } ?>>Next</a>
</nav>
<? }elseif(sizeof($ebooks) > 0 && $tag !== null){ ?>
<nav>
<a<? if($page > 1){ ?> href="/tags/<?= Formatter::ToPlainText(str_replace(' ', '-', $tag)) ?>/<? if($page - 1 > 1){ ?>?page=<?= $page - 1 ?><? } ?>" rel="previous"<? }else{ ?> aria-disabled="true"<? } ?>>Back</a>
<ol>
<? for($i = 1; $i < $pages + 1; $i++){ ?>
<li<? if($page == $i){ ?> class="highlighted"<? } ?>><a href="/tags/<?= Formatter::ToPlainText(str_replace(' ', '-', $tag)) ?>/<? if($i - 1 >= 1){ ?>?page=<?= $i ?><? } ?>"><?= $i ?></a></li>
<? } ?>
</ol>
<a<? if($page < ceil($totalEbooks / EBOOKS_PER_PAGE)){ ?> href="/tags/<?= Formatter::ToPlainText(str_replace(' ', '-', $tag)) ?>/?page=<?= $page + 1 ?>" rel="next"<? }else{ ?> aria-disabled="true"<? } ?>>Next</a>
<a<? if($page < ceil($totalEbooks / $perPage)){ ?> href="/ebooks/?page=<?= $page + 1 ?><? if($queryString != ''){ ?>&amp;<?= $queryString ?><? } ?>" rel="next"<? }else{ ?> aria-disabled="true"<? } ?>>Next</a>
</nav>
<? } ?>
<? if(sizeof($ebooks) > 0 && $query === null && $tag === null && $collection === null){ ?>
<aside class="sort">
<form action="/ebooks" method="get">
<label>Sort by
<select name="sort">
<option value="<?= SORT_NEWEST ?>"<? if($sort == SORT_NEWEST){ ?> selected="selected"<? } ?>>newest</option>
<option value="<?= SORT_AUTHOR_ALPHA ?>"<? if($sort == SORT_AUTHOR_ALPHA){ ?> selected="selected"<? } ?>>author name</option>
<option value="<?= SORT_READING_EASE ?>"<? if($sort == SORT_READING_EASE){ ?> selected="selected"<? } ?>>reading ease</option>
<option value="<?= SORT_LENGTH ?>"<? if($sort == SORT_LENGTH){ ?> selected="selected"<? } ?>>length</option>
</select>
</label>
<button>Sort</button>
</form>
</aside>
<? if($page == 1){ ?>
<? if(sizeof($ebooks) > 0 && $query === null && sizeof($tags) == 0 && $collection === null && $page == 1){ ?>
<?= Template::ContributeAlert() ?>
<? } ?>
<? } ?>
</main>
<?= Template::Footer() ?>