X-Git-Url: http://git.iain.cx/?a=blobdiff_plain;f=lib%2Ffunctions.php;h=985c02b83574a9a620d1a51b932136e0164cb7e9;hb=8608b888fb708fadeb23ae113ad83516cc5e4176;hp=ec0b35ade4763feb1890792972f1f01166b1e107;hpb=e2ec797398326b88782988d0b9719e21c278a584;p=readifood.git

diff --git a/lib/functions.php b/lib/functions.php
index ec0b35a..985c02b 100644
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -21,6 +21,52 @@
     return array($name, $id, $args);
   }
 
+  function pagination() {
+    $first_page = 1;
+    $per_page = $GLOBALS['default_page_size'];
+
+    parse_str($_SERVER['QUERY_STRING'], $params);
+    if (array_key_exists('page', $params)) if (is_numeric($params['page'])) $first_page = $params['page'];
+    if (array_key_exists('size', $params)) if (is_numeric($params['size'])) $per_page = $params['size'];
+
+    return array($first_page, $per_page);
+  }
+
+  function page_link($alt, $n, $cur, $max, $size) {
+    $links = array();
+    if ($n < 1 || $n == $cur || $n > $max) return $alt;
+    $params = array('page' => $n);
+    if ($size != $GLOBALS['default_page_size']) $params['size'] = $size;
+    $url = http_build_query($params);
+    return "<a href=\"?$url\">$alt</a> ";
+  }
+
+  function show_pagination($pager, $n = 5) {
+    if (! $pager->haveToPaginate()) return;
+
+    list($first_page, $per_page) = pagination();
+
+    $pages = ceil($pager->getNbResults() / $per_page);
+
+    /* Highlight the fact we skipped some pages. */
+    $linked_pages = $pager->getLinks($n);
+    $first_link = $linked_pages[0];
+    $last_link = end($linked_pages);
+
+    $links = array();
+    $links[] = page_link('First', 1, $first_page, $pages, $per_page);
+    $links[] = page_link('Previous', $first_page - 1, $first_page, $pages, $per_page);
+    if ($first_link > 1) $links[] = page_link('...', $first_page, $pages, $per_page);
+    foreach ($linked_pages as $link) $links[] = page_link($link, $link, $first_page, $pages, $per_page);
+    if ($last_link < $pages) $links[] = page_link('...', $first_page, $pages, $per_page);
+    $links[] = page_link('Next', $first_page + 1, $first_page, $pages, $per_page);
+    $links[] = page_link('Last', $pages, $first_page, $pages, $per_page);
+
+    echo "<p>Page: ";
+    echo implode(' / ', $links);
+    echo "</p>\n";
+  }
+
   function get_city_by_name($name, $postcode_area = null, $verbose = true) {
     $q = new CityQuery;
 
@@ -206,6 +252,27 @@
     return $q->orderByDate()->find();
   }
 
+  function get_available_offers($contact = null) {
+    $q = new OfferQuery;
+    $q->where("(valid_from is null or valid_from<=now())");
+    $q->where("(valid_to is null or valid_to>now())");
+    if (! is_null($contact)) {
+      $qq = new OfferStateQuery;
+      $qq->filterByContactId($contact->getId());
+      $ids = Array();
+      foreach ($qq->find() as $state) $ids[] = $state->getOfferId();
+      if (count($ids)) $q->_or()->filterById($ids);
+    }
+    return $q->orderById()->find();
+  }
+
+  function get_offer_state($contact, $offer) {
+    $q = new OfferStateQuery;
+    $q->filterByOfferId($offer->getId());
+    $q->filterByContactId($contact->getId());
+    return $q->orderByUpdated('desc')->findOne();
+  }
+
   function get_user_by_contact_id($id, $verbose = true) {
     $q = new UserQuery;
     $user = $q->findOneByContactId($id);
@@ -582,7 +649,38 @@
     echo call_user_func_array("get_small_link", func_get_args());
   }
 
-  include_once("$lib_root/admin.php");
-  include_once("$lib_root/forms.php");
+  function check_dates($description, $from, $to, $mandatory_from = true, $mandatory_to = true) {
+    $Description = ucfirst($description);
+    if ($from || $mandatory_from) {
+      list($y, $m, $d) = explode('-', $from);
+      if (! checkdate($m, $d, $y)) {
+        echo "<p>Invalid $description start date!</p>\n";
+        return false;
+      }
+      $start = mktime(0, 0, 0, $m, $d, $y);
+    }
+    else $start = 0;
+
+    if ($to || $mandatory_to) {
+      list($y, $m, $d) = explode('-', $to);
+      if (! checkdate($m, $d, $y)) {
+        echo "<p>Invalid $description end date!</p>\n";
+        return false;
+      }
+      $end = mktime(0, 0, 0, $m, $d, $y);
+    }
+    else $end = PHP_INT_MAX;
+
+    if ($end < $start) {
+      echo "<p>$Description end date is earlier than start date!</p>\n";
+      return false;
+    }
+
+    return true;
+  }
+
+  include_once(join(DIRECTORY_SEPARATOR, array($lib_root, "admin.php")));
+  include_once(join(DIRECTORY_SEPARATOR, array($lib_root, "auth0.php")));
+  include_once(join(DIRECTORY_SEPARATOR, array($lib_root, "forms.php")));
 
 ?>