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Added the ability to edit and delete posts which includes uploading of images for the posts and managing those images

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Signed-off-by: rodude123 <rodude123@gmail.com>
This commit is contained in:
Rohit Pai
2023-07-12 03:29:56 +01:00
parent be5e047f51
commit 3b71ba4d23
26 changed files with 1549 additions and 315 deletions
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src/api/blog/blogData.php
+209 -43
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@@ -21,7 +21,8 @@ class blogData
public function getBlogPosts(): array
{
$conn = dbConn();
$stmt = $conn->prepare("SELECT ID, title, dateCreated, dateModified, body, categories FROM blog ORDER BY dateCreated DESC;");
$stmt = $conn->prepare("SELECT ID, title, dateCreated, dateModified, body, categories, featured
FROM blog ORDER BY dateCreated;");
$stmt->execute();
// set the resulting array to associative
@@ -99,6 +100,164 @@ class blogData
return array("errorMessage" => "Error, blog post could not found");
}
/**
* Delete a blog post with the given ID
* @param int $ID - ID of the blog post to delete
* @return string - Success or error message
*/
public function deletePost(int $ID): string
{
$conn = dbConn();
$stmtCheckPost = $conn->prepare("SELECT * FROM blog WHERE ID = :ID");
$stmtCheckPost->bindParam(":ID", $ID);
$stmtCheckPost->execute();
$result = $stmtCheckPost->fetch(PDO::FETCH_ASSOC);
if (!$result)
{
return "post not found";
}
if ($result["featured"] === 1)
{
return "cannot delete";
}
$stmt = $conn->prepare("DELETE FROM blog WHERE ID = :ID");
$stmt->bindParam(":ID", $ID);
if ($stmt->execute())
{
$imagUtils = new imgUtils();
$imagUtils->deleteDirectory("../blog/imgs/" . $result["title"] . "_" . $result["folderID"] . "/");
return "success";
}
return "error";
}
/**
* Update the blog post with the given ID
* @param int $ID - ID of the blog post to update
* @param string $title - Title of the blog post
* @param bool $featured - Whether the blog post is featured or not
* @param string $body - Body of the blog post
* @param string $dateModified - Date the blog post was modified
* @param string $categories - Categories of the blog post
* @return bool|string - Success or error message
*/
public function updatePost(int $ID, string $title, bool $featured, string $body, string $dateModified, string $categories): bool|string
{
$conn = dbConn();
$stmtCheckPost = $conn->prepare("SELECT * FROM blog WHERE ID = :ID");
$stmtCheckPost->bindParam(":ID", $ID);
$stmtCheckPost->execute();
$result = $stmtCheckPost->fetch(PDO::FETCH_ASSOC);
if (!$result)
{
return "post not found";
}
if (!$featured && $result["featured"] === 1)
{
return "unset feature";
}
if ($featured)
{
$stmtUnsetFeatured = $conn->prepare("UPDATE blog SET featured = 0 WHERE featured = 1;");
$stmtUnsetFeatured->execute();
}
$to = "../blog/imgs/" . $title . "_" . $result["folderID"] . "/";
if ($result["title"] !== $title)
{
$from = "../blog/imgs/" . $result["title"] . "_" . $result["folderID"] . "/";
mkdir($to, 0777, true);
rename($result["headerImg"], $to . basename($result["headerImg"]));
$body = $this->changeHTMLSrc($body, $to, $from);
rmdir($from);
}
$from = "../blog/imgs/tmp/";
$newBody = $this->changeHTMLSrc($body, $to, $from);
$stmt = $conn->prepare("UPDATE blog SET title = :title, featured = :featured, body = :body, dateModified = :dateModified, categories = :categories WHERE ID = :ID;");
$stmt->bindParam(":ID", $ID);
$stmt->bindParam(":title", $title);
$stmt->bindParam(":featured", $featured);
$stmt->bindParam(":body", $newBody);
$stmt->bindParam(":dateModified", $dateModified);
$stmt->bindParam(":categories", $categories);
return $stmt->execute();
}
/**
* Creates a new post di rectory, uploads the header image and moves the images from the
* temp folder to the new folder, then updates the post html to point to the new images, finally
* it creates the post in the database
* @param string $title - Title of the blog post
* @param string $body - Body of the blog post
* @param string $dateCreated - Date the blog post was created
* @param bool $featured - Whether the blog post is featured or not
* @param string $categories - Categories of the blog post
* @param UploadedFileInterface $headerImg - Header image of the blog post
* @return int|string - ID of the blog post or error message
*/
public function createPost(string $title, string $body, string $dateCreated, bool $featured, string $categories, UploadedFileInterface $headerImg): int|string
{
$conn = dbConn();
$folderID = uniqid();
$targetFile = array("imgLocation" => "../blog/imgs/placeholder.png");
$targetDir = "../blog/imgs/" . $title . "_" . $folderID . "/";
mkdir($targetDir, 0777, true);
if ($headerImg !== null)
{
$imagUtils = new imgUtils();
$targetFile = $imagUtils->uploadFile($targetDir, $headerImg);
}
if (!is_array($targetFile))
{
return $targetFile;
}
$newBody = $this->changeHTMLSrc($body, $targetDir, "../blog/imgs/tmp/");
if ($featured)
{
$stmtMainProject = $conn->prepare("UPDATE blog SET featured = 0 WHERE featured = 1;");
$stmtMainProject->execute();
}
$stmt = $conn->prepare("INSERT INTO blog (title, dateCreated, dateModified, featured, headerImg, body, categories, folderID)
VALUES (:title, :dateCreated, :dateModified, :featured, :headerImg, :body, :categories, :folderID);");
$stmt->bindParam(":title", $title);
$stmt->bindParam(":dateCreated", $dateCreated);
$stmt->bindParam(":dateModified", $dateCreated);
$isFeatured = $featured ? 1 : 0;
$stmt->bindParam(":featured", $isFeatured);
$stmt->bindParam(":headerImg", $targetFile["imgLocation"]);
$stmt->bindParam(":body", $newBody);
$stmt->bindParam(":categories", $categories);
$stmt->bindParam(":folderID", $folderID);
if ($stmt->execute())
{
return intval($conn->lastInsertId());
}
return "Error, couldn't create post";
}
/**
* Upload the images in the post to temp folder and return image location
* @param UploadedFileInterface $img - Image to upload
@@ -131,37 +290,60 @@ class blogData
}
/**
* Creates a new post directory, uploads the header image and moves the images from the
* temp folder to the new folder, then updates the post html to point to the new images, finally
* it creates the post in the database
* @param string $title - Title of the blog post
* @param string $body - Body of the blog post
* @param string $dateCreated - Date the blog post was created
* @param string $featured - Whether the blog post is featured or not
* @param string $categories - Categories of the blog post
* @param UploadedFileInterface $headerImg - Header image of the blog post
* @return int|string - ID of the blog post or error message
* Upload the header image of the post and update the database
* @param int $ID - ID of the post
* @param UploadedFileInterface $img - Image to upload
* @return string|array - String with error message or array with the location of the uploaded file
*/
public function createPost(string $title, string $body, string $dateCreated, string $featured, string $categories, UploadedFileInterface $headerImg): int|string
public function uploadHeaderImage(int $ID, UploadedFileInterface $img): string|array
{
$conn = dbConn();
$targetFile = "";
$folderID = uniqid();
if ($headerImg !== null)
$stmt = $conn->prepare("SELECT * FROM blog WHERE ID = :ID;");
$stmt->bindParam(":ID", $ID);
$stmt->execute();
$result = $stmt->fetch(PDO::FETCH_ASSOC);
if (!$result)
{
$targetDir = "../blog/imgs/" . $title . "_" . $folderID . "/";
mkdir($targetDir, 0777, true);
$imagUtils = new imgUtils();
$targetFile = $imagUtils->uploadFile($targetDir, $headerImg);
return "Couldn't find the post";
}
$targetFile = array("imgLocation" => ".../blog/imgs/placeholder.png");
$targetDir = "../blog/imgs/" . $result["title"] . "_" . $result["folderID"] . "/";
$imagUtils = new imgUtils();
$targetFile = $imagUtils->uploadFile($targetDir, $img);
if (!is_array($targetFile))
{
return $targetFile;
}
if (file_exists($targetFile["imgLocation"]))
{
unlink($result["headerImg"]);
$stmt = $conn->prepare("UPDATE blog SET headerImg = :headerImg WHERE ID = :ID;");
$stmt->bindParam(":ID", $ID);
$stmt->bindParam(":headerImg", $targetFile["imgLocation"]);
$stmt->execute();
if ($stmt->rowCount() > 0)
{
return $targetFile;
}
return "Couldn't update the post";
}
return "Couldn't upload the image";
}
/**
* Change the HTML src of the images in the post to point to the new location
* @param string $body - Body of the post
* @param string $to - New location of the images
* @param string $from - Old location of the images
* @return string - Body of the post with the new image locations
*/
public function changeHTMLSrc(string $body, string $to, string $from): string
{
$htmlDoc = new DOMDocument();
$htmlDoc->loadHTML($body, LIBXML_NOERROR);
$doc = $htmlDoc->getElementsByTagName('body')->item(0);
@@ -172,24 +354,25 @@ class blogData
foreach ($imgs as $img)
{
$src = $img->getAttribute("src");
$src = urldecode($src);
$srcList[] = $src;
$fileName = basename($src);
$img->setAttribute("src", $targetDir . $fileName);
$img->setAttribute("src", $to . $fileName);
}
$files = scandir("../blog/imgs/tmp/");
$files = scandir($from);
foreach ($files as $file)
{
if ($file != "." && $file != "..")
{
if (!in_array("../blog/imgs/tmp/" . $file, $srcList))
if (!in_array($from . $file, $srcList))
{
unlink("../blog/imgs/tmp/" . $file);
unlink($from . $file);
}
else
{
rename("../blog/imgs/tmp/" . $file, $targetDir . $file);
rename($from . $file, $to . $file);
}
}
}
@@ -199,23 +382,6 @@ class blogData
{
$newBody .= $htmlDoc->saveHTML($node);
}
$stmt = $conn->prepare("INSERT INTO blog (title, dateCreated, dateModified, featured, headerImg, body, categories, folderID)
VALUES (:title, :dateCreated, :dateModified, :featured, :headerImg, :body, :categories, :folderID);");
$stmt->bindParam(":title", $title);
$stmt->bindParam(":dateCreated", $dateCreated);
$stmt->bindParam(":dateModified", $dateCreated);
$stmt->bindParam(":featured", $featured);
$stmt->bindParam(":headerImg", $targetFile["imgLocation"]);
$stmt->bindParam(":body", $newBody);
$stmt->bindParam(":categories", $categories);
$stmt->bindParam(":folderID", $folderID);
if ($stmt->execute())
{
return intval($conn->lastInsertId());
}
return "Error, couldn't create post";
return $newBody;
}
}