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63 lines
2.6 KiB
63 lines
2.6 KiB
12 years ago
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<?php
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/**
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* Setups the globals for the Drupal pager.
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*
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* Does just what it says: Hacks the default Drupal pager such that it might
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* be rendered, likely with: theme('pager', array(), $per_page, $pager_name)
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* (I reccomend seeing the real documentation for more detail, but the first
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* array can be a list of the tags to use for first, previous, next and last
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* (text in the pager), I don't believe per_page is actually used in the theme
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* function, and $pager_name is an integer used to identify the pager (such
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* that there can be more than one--that is, tracking different lists of
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* content on a single page. You can render the exact same pager multiple
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* times, say if you want one at the top and bottom of a list, using the same
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* ID/pager_name.
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*
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* @global $pager_total array
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* Numerically indexed array, where keys are the $pager_names and values
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* are the number of pages in the given set, based on: ceil($total_items/$per_page);
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* @global $pager_page_array array
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* Numerically indexed array, where keys are the $pager_names and values
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* are the page selected in the relevant set.
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* @param $pager_name int
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* An integer to identify the pager to affect. Do note that paging in using
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* this function will add the 'page' HTTP GET parameter to the URL, with
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* the value containing a comma-separated list with max($pager_name + 1)
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* values--that is, if you create a single pager named '10', the 'next'
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* link will look something like: 0,0,0,0,0,0,0,0,0,0,1
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* @param $per_page int
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* An integer representing the number of items per page.
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* @param $total_items int
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* An integer representing the total number of items in the set.
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* @return int
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* An integer representing what the current page should be.
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*/
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function fedora_repository_setup_pager($pager_name, $per_page = NULL, $total_items = NULL) {
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global $pager_total, $pager_page_array;
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if ($per_page !== NULL && $total_items !== NULL) {
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$pager_total[$pager_name] = ceil($total_items / $per_page);
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}
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//XXX: Don't know that this is neccessary, to try to load all the time, or
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// whether Drupal will load it automatically somewhere... Docs seems a
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// a little sparse.
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$page_info = explode(',', isset($_GET['page']) ? $_GET['page'] : '');
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$page = $page_info[$pager_name];
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if ($page < 0) {
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$page = 0;
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}
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if (!isset($pager_page_array)) {
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$pager_page_array = pager_load_array($page, $pager_name, $page_info);
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}
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else {
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$pager_page_array = pager_load_array($page, $pager_name, $pager_page_array);
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}
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$page = $pager_page_array[$pager_name];
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return $page;
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}
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