/
category_db.php
79 lines (74 loc) · 2.21 KB
/
category_db.php
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<?php
function get_categories() {
global $db;
$query = 'SELECT * FROM categories
ORDER BY categoryID';
try {
$statement = $db->prepare($query);
$statement->execute();
$result = $statement->fetchAll();
$statement->closeCursor();
return $result;
} catch (PDOException $e) {
display_db_error($e->getMessage());
}
}
function get_category($category_id) {
global $db;
$query = 'SELECT * FROM categories
WHERE categoryID = :category_id';
try {
$statement = $db->prepare($query);
$statement->bindValue(':category_id', $category_id);
$statement->execute();
$result = $statement->fetch();
$statement->closeCursor();
return $result;
} catch (PDOException $e) {
display_db_error($e->getMessage());
}
}
function add_category($name) {
global $db;
$query = 'INSERT INTO categories (categoryName)
VALUES (:name)';
try {
$statement = $db->prepare($query);
$statement->bindValue(':name', $name);
$statement->execute();
$statement->closeCursor();
$category_id = $db->lastInsertId();
return $category_id;
} catch (PDOException $e) {
$error_message = $e->getMessage();
display_db_error($error_message);
}
}
function delete_category($category_id) {
global $db;
$query = 'DELETE FROM categories
WHERE categoryID = :category_id';
try {
$statement = $db->prepare($query);
$statement->bindValue(':category_id', $category_id);
$statement->execute();
$statement->closeCursor();
} catch (PDOException $e) {
$error_message = $e->getMessage();
display_db_error($error_message);
}
}
function get_product_count($category_id) {
global $db;
$query = 'SELECT COUNT(*) AS productCount
FROM products
WHERE categoryID = :category_id';
$statement = $db->prepare($query);
$statement->bindValue(':category_id', $category_id);
$statement->execute();
$result = $statement->fetchAll();
$statement->closeCursor();
$product_count = $result['productCount'];
return $product_count;
}
?>