/**
* This function populates the main content of the classes.php: the classes. Each class is displayed as a well HTML
* element. Additionally, this function calls populatePagination.
* @param $conn object the opened database connection
* @param $prefix string the currently selected prefix
* @param $search string the search query
* @param $sort string the currently selected sort parameter
* @param $page int the page to display
* @param $isAdmin boolean whether or not the logged-in user is an administrator
*/
function populateData($conn, $prefix, $search, $sort, $page, $isAdmin)
{
try {
//includes possibilitied for sort and search depending on what was selected
if ($prefix != "") {
$p = "'" . $prefix . "'";
$var = $conn->prepare("SELECT * FROM `categories` WHERE `prefix` = {$p} AND `title` LIKE '%{$search}%' ORDER BY {$sort}");
$count = $conn->query("SELECT COUNT(`title`) FROM `categories` WHERE `prefix` = {$p} AND `title` LIKE '%{$search}%'")->fetchColumn();
} else {
$var = $conn->prepare("SELECT * FROM `categories` WHERE `title` LIKE '%{$search}%' ORDER BY {$sort}");
$count = $conn->query("SELECT COUNT(`title`) FROM `categories` WHERE `title` LIKE '%{$search}%'")->fetchColumn();
}
//count will be used for pagination
if ($count == NULL) {
$count = 0;
}
//execute prepared statements
$var->execute();
//c will also be used for pagination
$c = 0;
$p = $page != "" ? intval($page) : 1;
//print them in columns
echo "<div class='row'>";
while ($result = $var->fetch(PDO::FETCH_ASSOC)) {
if ($c >= ($p - 1) * 18 && $c < $p * 18) {
//to get the number of links
$l = $conn->query("SELECT COUNT(link_id) FROM `links` WHERE `category_id` = '" . $result["category_id"] . "'")->fetchColumn();
if ($l == NULL) {
$l = 0;
}
//print out the boxes
echo "<div class='col-md-6'><a href='links.php?class=" . $result["category_id"] . "''>";
echo "<div class='well well-sm well-hover'>";
// display the prefix for the class
echo "<h6 class='text-muted'>" . $result["prefix"] . "</h6>";
// class title
echo "<h4 class='truncate'>" . $result["title"] . "</h4>";
// number of links
echo "<p>Contains " . $l . ($l != 1 ? " links" : " link") . ".</p>";
// metadata
echo "<p class='text-muted small info-text'>";
// submitted by
echo "<span class='pull-left'>submitted by " . $result["rcs_id"] . "</span>";
// creation date
echo "<span class='pull-right'>" . $result["creation_date"] . "</span>";
// fix the floats and close
echo "<span class='clearfix'></span>";
echo "</p></div></a>";
// Determine whether or not to show the edit and delete buttons
// Only show for admins or if the user created the class
if ($isAdmin || $result["rcs_id"] == phpCAS::getUser()) {
echo "<form method=\"post\" action='classes.php";
if ($prefix != "") {
echo "?prefix=" . $prefix;
}
echo "' class=\"admin-panel delete-form\">";
echo "<button type=\"submit\" class=\"btn btn-default pull-right\" name=\"delete\" value=" . $result["category_id"] . ">Delete</button></form>";
echo "<form method=\"post\" action='editclass.php' class=\"admin-panel\">";
echo "<button type=\"submit\" class=\"btn btn-default\" name=\"edit\" value=" . $result["category_id"] . ">Edit</button></form>";
}
echo "</div>";
} else {
if ($c >= $p * 18) {
break;
}
}
++$c;
}
//if there were no classes to display
if ($c == 0) {
echo "<div class='col-xs-12'>" . infoAlert("No classes. You should add one!") . "</div>";
}
} catch (PDOException $e) {
echo $e;
}
//add the pagination
populatePagination($count, $prefix, $p);
}
function populateData($conn, $dataReq, $isAdmin)
{
try {
$count = 0;
if (isset($_GET["page"])) {
$p = $_GET["page"];
} else {
$p = 1;
}
echo "<div class='row'>";
$data = $dataReq->fetchAll(PDO::FETCH_ASSOC);
foreach ($data as $result) {
if ($count >= ($p - 1) * 16 && $count < $p * 16) {
$categoryHTML = "<h6 class='text-muted truncate'>";
if (!isset($_GET["class"])) {
$var = $conn->prepare("SELECT `title`,`prefix` FROM `categories` WHERE `category_id` = :id");
$var->bindParam(':id', $result["category_id"]);
$var->execute();
$r2 = $var->fetch(PDO::FETCH_ASSOC);
$categoryHTML .= $r2['title'] . " (" . $r2['prefix'] . ")";
} else {
$categoryHTML .= "Link";
}
$categoryHTML .= "</h6>";
echo "<div class='col-md-3'>\n <a href='" . $result["link"] . "' target=\"_blank\">\n <div class='well well-sm well-hover'>" . $categoryHTML . "<h4 class='truncate'>" . $result["title"] . "</h4>" . "<p class='text-muted small'>\n <span class='pull-left'>\n submitted by " . $result["rcs_id"] . "</span>\n <span class='pull-right'>" . $result["creation_date"] . "</span>\n <span class='clearfix'></span>\n </p>\n </div>\n </a>";
//for getting back to the same page you started on
$class = "?";
if (isset($_GET["class"])) {
$class .= "class=" . $_GET["class"];
}
$page = $class;
if (isset($_GET["page"])) {
if ($class == "?") {
$page = "?page=" . $_GET["page"];
} else {
$page = $class . "&page=" . $_GET["page"];
}
}
//for upvote and downvote
echo "<div class='row'><div class=\"col-xs-12 text-center\">";
echo "<form class='admin-panel' method=\"post\" action='links.php" . $page . "' class=\"form-inline\">";
echo "<button type=\"submit\" class=\"btn btn-default pull-left\" name=\"downvote\" value=" . $result["link_id"] . ">\n <span class='fa fa-thumbs-down'</span></button>";
echo "<button type=\"submit\" class=\"btn btn-default pull-right\" name=\"upvote\" value=" . $result["link_id"] . ">\n <span class='fa fa-thumbs-up'</span></button></form>";
echo "<span class=\"text-center\"><a class='btn btn-default disabled'>" . $result["score"] . "</a></span>";
echo "</div></div>";
//if the user is an administrator, they can delete and edit
if ($isAdmin || $result["rcs_id"] == phpCAS::getUser()) {
//delete button
echo "<form class='admin-panel delete-form' method=\"post\" action='links.php{$class}' class=\"form-horizontal\">";
echo "<button type=\"submit\" class=\"btn btn-default pull-right\" name=\"delete\" value=" . $result["link_id"] . ">Delete</button></form>";
//edit button
echo "<form class='admin-panel' method=\"post\" action='editlink.php" . $page . "' class=\"form-horizontal\">";
echo "<button type=\"submit\" class=\"btn btn-default pull-left\" name=\"edit\" value=" . $result["link_id"] . ">Edit</button></form>";
}
echo "</div>";
}
$count++;
}
if ($count == 0) {
echo "<div class='row'><div class='col-xs-12'>" . infoAlert("No links. You should add one.") . "</div></div>";
}
} catch (PDOException $e) {
echo $e;
}
if ($count / 16 + 1 >= 2) {
echo "<div class=\"clearfix\"></div><div class=\"col-xs-12 centered\"><hr/><div class=\"btn-group\">";
for ($button = 1; $button < $count / 16 + 1; $button++) {
$link = "?";
if (isset($_GET["class"])) {
$link = $link . "class=" . $_GET["class"] . "&";
}
$link .= "page={$button}";
echo "<a href=\"{$link}\" class=\"btn btn-primary\">{$button}</a>";
}
echo "</div></div>";
}
echo "</div>";
}