【发布时间】：2020-11-07 21:13:58
【问题描述】：
我目前正在做一个学校项目，我正在尝试上传一个食谱的“帖子”。这包括图像、标题、说明、成分以及 1 个或多个类别。 他们都插入得很好。唯一的问题是类别。即使我选择了多个复选框，它也只会插入 1 个类别。 应该将每个复选框插入到数据库中的新行中。
我的 DAO
public function insertCategory($data, $title) {
if (empty($errors)) {
$sql = "INSERT INTO `recipes_categories` (`category_id`, `recipe_id`) VALUES(:category_id,:recipe_id);";
$stmt = $this->pdo->prepare($sql);
$stmt->bindValue(':category_id', $data['category_id']);
$stmt->bindValue(':recipe_id', $title['id']);
if ($stmt->execute()) {
return $this->selectcategoryById($this->pdo->lastInsertId());
}
}
return false;
}
我的控制器（相关部分）
public function upload() {
// variabele om foutmelding bij te houden
$error = '';
// controleer of er iets in de $_POST zit
if(!empty($_POST['action'])){
// controleer of het wel om het juiste formulier gaat
if($_POST['action'] == 'add-image') {
// controleren of er een bestand werd geselecteerd
if (empty($_FILES['image']) || !empty($_FILES['image']['error'])) {
$error = 'Gelieve een bestand te selecteren';
}
if(empty($error)){
// controleer of het een afbeelding is van het type jpg, png of gif
$whitelist_type = array('image/jpeg', 'image/png','image/gif');
if(!in_array($_FILES['image']['type'], $whitelist_type)){
$error = 'Gelieve een jpeg, png of gif te selecteren';
}
}
if(empty($error)){
// controleer de afmetingen van het bestand: pas deze gerust aan voor je eigen project
// width: 270
// height: 480
$size = getimagesize($_FILES['image']['tmp_name']);
if ($size[0] < 100 || $size[1] < 100) {
$error = 'De afbeelding moet minimum 100x100 pixels groot zijn';
}
}
if(empty($error)){
// map met een random naam aanmaken voor de upload: redelijk zeker dat er geen conflict is met andere uploads
$projectFolder = realpath(__DIR__);
$targetFolder = $projectFolder . '/../assets/ads';
$targetFolder = tempnam($targetFolder, '');
unlink($targetFolder);
mkdir($targetFolder, 0777, true);
$targetFileName = $targetFolder . '/' . $_FILES['image']['name'];
// via de functie _resizeAndCrop() de afbeelding croppen en resizen tot de gevraagde afmeting
// pas gerust aan in je eigen project
$this->_resizeAndCrop($_FILES['image']['tmp_name'], $targetFileName, 100, 100);
$relativeFileName = substr($targetFileName, 1 + strlen($projectFolder));
$data = array(
'image' => $relativeFileName,
'title' => $_POST['title'],
'instructions' => $_POST['stappenplan'],
'description' => $_POST['ingredienten'],
'category_id' => $_POST['category'],
);
// TODO: schrijf de afbeelding weg naar de database op basis van de array $data
if (!empty($_POST['action'])) {
if ($_POST['action'] == 'add-image') {
// array met data invullen
$data = array(
'path' => '/' . $relativeFileName,
'title' => $_POST['title'],
'instructions' => $_POST['stappenplan'],
'description' => $_POST['ingredienten'],
'category_id' => $_POST['category'],
);
// aanspreken van de DAO
$insertImage = $this->uploadDAO->insertImage($data);
$title = $this->uploadDAO->ImageInsterId($data);
$this->set('title', $title);
$ingredientsArray = explode( ',', $data['description'] );
foreach($ingredientsArray as $ingredient){
$insertIngredient = $this->uploadDAO->insertIngredients($ingredient , $title);
}
$insertCategory = $this->uploadDAO->insertCategory($data, $title);
// TODO 2: zorg dat de variabele $error getoond wordt indien er iets fout gegaan is
if (!$insertImage) {
$errors = $this->uploadDAO->validate($data);
$this->set('errors', $errors);
} else {
$_SESSION['info'] = 'Thank you for adding a Post!';
header('Location: index.php?page=detail&id='. $title['id']);
exit();
}
}
}
}
}
}
这里也有一些用于图片上传的代码，但它不相关，因为它正在工作。
我的 HTML
<span class="error"><?php if(!empty($error)){ echo $error;} ?></span>
<section class="upload_box">
<h1 class="hidden">upload-form</h1>
<form method="post" action="index.php?page=upload" enctype="multipart/form-data" class="form__box">
<input type="hidden" name="action" value="add-image" />
<div class="form-field">
<label class="upload__title form_container">Kies een afbeelding
<span class="error"><?php if(!empty($errors['title'])){ echo $errors['title'];}?></span>
<input type="file" name="image" accept="image/png, image/jpeg, image/gif" required class="upload__button filter__submit input">
</label>
</div>
<div class="form-field">
<label class="upload__title form_container">Titel
<span class="error"><?php
if(!empty($errors['title'])){
echo $errors['title'];} ?></span>
<input type="text" name="title" required class="upload__title form_field input">
</label>
</div>
<div class="form-field">
<label class="upload__title form_container">Stappenplan
<span class="error"><?php if(!empty($errors['instructions'])){ echo $errors['instructions'];} ?></span>
<textarea name="stappenplan" id="stappenplan" cols="50" rows="5" required class="form_field upload__title input"></textarea>
</label>
</div>
<div class="form-field">
<label class="upload__title form_container">Ingredienten
<span class="error"><?php if(!empty($errors['description'])){ echo $errors['description '];} ?></span>
<input type="text" TextMode="MultiLine" name="ingredienten" maxlength="255" required class="form_field upload__title input" id="ingredienten">
</label>
</div>
<div class="category_container">
<label class="category_label filter__button">
<input class="category_input" type="checkbox" id="pasta" name="category" value="1">
Pasta</label>
<label class="category_label filter__button">
<input class="category_input" type="checkbox" id="veggie" name="category" value="2">
Veggie</label>
<label class="category_label filter__button">
<input class="category_input" type="checkbox" id="vlees" name="category" value="3">
Vlees</label>
</div>
<div class="form-field">
<input type="submit" value="uploaden" class="filter__button filter__submit">
<input type="reset" value="wissen" class="filter__button filter__submit">
</div>
</form>
</section>
<script src="js/validate.js"></script>
我所知道的：
我知道 recipe_id 不是问题。我对其他 SQL 插入使用相同的方法。
我不想要explode() 或implode()，因为它们在这种情况下不起作用。
尝试了几个 foreaches 但还没有让它工作，只是还没有。
它也与括号或逗号或其他无关。
当我有 2 个复选框值时，这只是插入只做一次。而且我不知道如何在选择所有 3 个或所有 3 个时使其循环
【问题讨论】：