Test meme voting
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154cff0372
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@ -621,4 +621,24 @@ async function getMemeImages() {
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memeImageSelector.appendChild(option);
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});
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}
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async function reloadMemeVotes(memeID) {
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let memeVoteCounterElement = document.getElementById(`meme_votes_counter_${memeID}`);
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let memeVoteResponse = await doAction('/meme', {
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action: "getMemeVotes",
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meme_id: memeID
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}, "Počet hlasov k meme-u bol stiahnutý", "Nastala chyba pri sťahovaní počtu hlasov k meme-u", true);
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memeVoteCounterElement.innerText = memeVoteResponse.NetVotes;
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}
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async function voteMeme(memeID, isUpvote){
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await doAction("/meme", {
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action: "voteMeme",
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meme_id: memeID,
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is_upvote: isUpvote
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}, "Meme bol upvotenutý", "Nastala chyba pri upvoteovaní meme-u", true);
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await reloadMemeVotes(memeID);
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}
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@ -356,6 +356,21 @@ div#articleslist>article{
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height: auto;
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}
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.meme_info {
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display: flex;
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flex-direction: row;
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}
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.meme {
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display: flex;
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flex-direction: column;
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}
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.meme_body {
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display: flex;
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flex-direction: column;
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}
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@media (max-width: 1050px) {
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div#articleslist {
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@ -9,6 +9,8 @@ function endpoint($endpoint_data): array
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"addMeme" => addMeme($endpoint_data['meme_title'], $endpoint_data['meme_text'], $endpoint_data['meme_image_id']),
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"renderGallery" => renderMemeGallery(),
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"deleteMeme" => deleteMeme($endpoint_data['meme_id']),
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default => ["Status" => "Fail", "message" => "Invalid action"],
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"getMemeVotes" => getMemeVotes($endpoint_data['meme_id']),
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"voteMeme" => voteMeme($endpoint_data['meme_id'], $endpoint_data['is_upvote']),
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default => ["Status" => "Fail", "Message" => "Invalid action"],
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};
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}
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58
lib/meme.php
58
lib/meme.php
@ -27,6 +27,14 @@ function renderMeme(int $id, int $authorId, string $title, string $textContent,
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$meme_out = str_replace('__TEMPLATE_MEME_IMAGE__', '/' . htmlspecialchars($filePath), $meme_out);
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$meme_out = str_replace('__TEMPLATE_MEME_DELETE_BUTTON__', (isModerator() || $_SESSION['ID'] == $authorId) ? "<button onclick=\"deleteMeme($id);\"><i class='ri-delete-bin-line'></i></button>" : '', $meme_out);
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$meme_votes = calculateNetVotes($id);
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$meme_upvote = isLoggedIn() ? "<button onclick=\"voteMeme($id, true);\"> <i class=\"ri-arrow-up-line\"></i></button>" : '';
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$meme_downvote = isLoggedIn() ? "<button onclick=\"voteMeme($id, false);\"> <i class=\"ri-arrow-down-line\"></i></button>" : '';
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$meme_out = str_replace('__TEMPLATE_MEME_VOTES_NUMBER__', $meme_votes, $meme_out);
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$meme_out = str_replace('__TEMPLATE_MEME_UPVOTE__', $meme_upvote, $meme_out);
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$meme_out = str_replace('__TEMPLATE_MEME_DOWNVOTE__', $meme_downvote, $meme_out);
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$meme_out = str_replace('__TEMPLATE_MEME_ID__', $id, $meme_out);
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return str_replace('__TEMPLATE_MEME_TEXT__', htmlspecialchars($textContent), $meme_out);
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}
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@ -69,7 +77,7 @@ function renderMemeGallery(): string
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return $meme_gallery_out;
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}
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function deleteMeme(int $memeId): array
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function deleteMeme(int $memeID): array
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{
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global $mysqli;
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$out = ["Status" => "Fail"];
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@ -77,14 +85,58 @@ function deleteMeme(int $memeId): array
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$query = !isModerator() ? 'DELETE FROM Memes WHERE ID = ? AND AuthorID = ?' : 'DELETE FROM Memes WHERE ID = ?';
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$stmtDelete = $mysqli->prepare($query);
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if (!isModerator()) {
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$stmtDelete->bind_param('ii', $memeId, $_SESSION['ID']);
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$stmtDelete->bind_param('ii', $memeID, $_SESSION['ID']);
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} else {
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$stmtDelete->bind_param('i', $memeId);
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$stmtDelete->bind_param('i', $memeID);
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}
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$stmtDelete->execute();
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if ($stmtDelete->affected_rows > 0) {
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$out['Status'] = 'Success';
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}
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$stmtDelete->close();
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}
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return $out;
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}
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function voteMeme(int $memeID, bool $isUpvote): array
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{
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global $mysqli;
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$out = ["Status" => "Fail"];
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$vote = $isUpvote ? 1 : 0;
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$memeVoteConn = $mysqli->prepare('INSERT INTO MemeVotes (MemeID, UserID, isUpvote) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE isUpvote = VALUES(isUpvote)');
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$memeVoteConn->bind_param('iii', $memeID, $_SESSION['ID'], $vote);
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$memeVoteConn->execute();
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if ($memeVoteConn->affected_rows > 0) {
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$out['Status'] = 'Success';
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}
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$memeVoteConn->close();
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return $out;
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}
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function calculateNetVotes(int $memeID): int
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{
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global $mysqli;
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$query = 'SELECT isUpvote FROM MemeVotes WHERE MemeID = ?';
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$stmt = $mysqli->prepare($query);
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$stmt->bind_param('i', $memeID);
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$stmt->execute();
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$result = $stmt->get_result();
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$netVotes = 0;
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while ($row = $result->fetch_assoc()) {
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$netVotes += ($row['isUpvote'] == 1) ? 1 : -1;
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}
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$stmt->close();
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return $netVotes;
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}
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function getMemeVotes(int $memeID): array
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{
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return [
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"Status" => "Success",
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"NetVotes" => calculateNetVotes($memeID)
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];
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}
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@ -1,10 +1,19 @@
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<article class="meme">
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<h2 class='meme_title'>__TEMPLATE_MEME_TITLE__</h2>
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<div class="meme_body">
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<p class='meme_author'><i class="ri-user-line"></i>__TEMPLATE_MEME_AUTHOR__</p>
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__TEMPLATE_MEME_DELETE_BUTTON__
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<p class='meme_date'><i class="ri-calendar-line"></i>__TEMPLATE_MEME_DATE__</p>
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<img src="__TEMPLATE_MEME_IMAGE__" width="500" alt="meme image" class="meme_image">
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<p class="meme_text">__TEMPLATE_MEME_TEXT__</p>
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<article class="meme" id="meme___TEMPLATE_MEME_ID__">
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<div class="meme_header" id="meme_header___TEMPLATE_MEME_ID__">
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<h2 class='meme_title' id="meme_title___TEMPLATE_MEME_ID__">__TEMPLATE_MEME_TITLE__</h2>
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<div class="meme_info" id="meme_info___TEMPLATE_MEME_ID__">
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<div class="meme_voting" id="meme_voting___TEMPLATE_MEME_ID__">
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__TEMPLATE_MEME_UPVOTE__
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<p class="votes_counter" id="meme_votes_counter___TEMPLATE_MEME_ID__">__TEMPLATE_MEME_VOTES_NUMBER__</p>
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__TEMPLATE_MEME_DOWNVOTE__
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</div>
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<p class='meme_author' id="meme_author___TEMPLATE_MEME_ID__"><i class="ri-user-line"></i>__TEMPLATE_MEME_AUTHOR__</p>
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__TEMPLATE_MEME_DELETE_BUTTON__
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<p class='meme_date' id="meme_date___TEMPLATE_MEME_ID__"><i class="ri-calendar-line"></i>__TEMPLATE_MEME_DATE__</p>
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</div>
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</div>
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<div class="meme_body" id="meme_body___TEMPLATE_MEME_ID__">
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<img id="meme_image___TEMPLATE_MEME_ID__" src="__TEMPLATE_MEME_IMAGE__" width="500" alt="meme image" class="meme_image">
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<p class="meme_text" id="meme_text___TEMPLATE_MEME_ID__">__TEMPLATE_MEME_TEXT__</p>
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</div>
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</article>
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