Question

我有数据库值的下拉列表。但是，下拉列表还显示数据库值的索引，我想删除index.I已在谷歌和其他论坛中搜索，但未获得预期的解决方案。

function products_edit($product_id) {
    $this->load->helper('form');  
    $this->load->helper('html');
    $this->load->library('form_validation');
    $this->load->model('products_model');
    $data=$this->products_model->general();
    $category['categories']=$this->products_model->get_category();
    $product = $this->products_model->get_product($product_id);

    $this->data['title'] = 'Edit Product';

    //validate form input
    $this->form_validation->set_rules('name', 'Product name', 'required|xss_clean');
    $this->form_validation->set_rules('description', 'Product Description', 'required|xss_clean');
    $this->form_validation->set_rules('category', 'Category', 'required|xss_clean');
    //$this->form_validation->set_rules('extras', 'Extras', 'required|xss_clean');
    $this->form_validation->set_rules('price', 'Price', 'required|xss_clean');
    $this->form_validation->set_rules('is_featured', 'Is Featured', 'required|xss_clean');
    $this->form_validation->set_rules('prorder', 'prorder', 'required|xss_clean');

    if (isset($_POST) && !empty($_POST)) {      
        $data = array(
            'product_name'=> $this->input->post('name'),
            'product_desc'=> $this->input->post('description'),
            'product_category' => $this->input->post('category'),
            'extras' => $this->input->post('extras'),
            'price' => $this->input->post('price'),
            'is_featured' => $this->input->post('is_featured'),
            'prorder' => $this->input->post('prorder'),
        );

        if ($this->form_validation->run() === true) {
            $this->products_model->updateproducts($product_id, $data);
            $this->session->set_flashdata('message', "<p>Product updated successfully.</p>");

            redirect('products_controller/products_edit/'.$product_id);
        }           
    }

    $this->data['message'] = (validation_errors() ? validation_errors() : $this->session->flashdata('message'));

    $this->data['product'] = $product;

    //display the edit product form
    $this->data['name'] = array(
        'name'      => 'name',
        'id'        => 'name',
        'type'      => 'text',
        'style'     => 'width:300px;',
        'value'     => $this->form_validation->set_value('name', $product['product_name']),
    );

    $this->data['description'] = array(
        'name'      => 'description',
        'id'        => 'description',
        'type'      => 'text',
        'cols'      =>  60,
        'rows'      =>  5,
        'value'     => $this->form_validation->set_value('description', $product['product_desc']),
    );

    $cat=array();
    $test = array();
    for($i=0;$i<=3;$i++) {
        $test[$i] = array($category['categories'][$i] => $category['categories'][$i]);
    } 

    $this->data['category'] = $test;

    $this->data['extras'] = array(
        'name'  => 'extras',
        'id'    => 'extras',
        'type'  => 'text',
        'style' => 'width:250px;',
        'value' => $this->form_validation->set_value('extras', $product['extras']),
        );

    $this->data['price'] = array(
        'name'  => 'price',
        'id'    => 'picture',
        'type'  => 'text',
        'style' => 'width:250px;',
        'value' => $this->form_validation->set_value('price', $product['price']),
    );

    $this->data['is_featured'] = array(
        'name'  => 'is_featured',
        'id'    => 'is_featured',
        'type'  => 'text',
        'style' => 'width:250px;',
        'value' => $this->form_validation->set_value('is_featured', $product['is_featured']),
    );

    $this->data['prorder'] = array(
        'name'  => 'prorder',
        'id'    => 'prorder',
        'type'  => 'text',
        'style' => 'width:250px;',
        'value' => $this->form_validation->set_value('prorder', $product['prorder']),
    );

    $this->load->view('products_edit', $this->data);
}

此行发生错误。

for($i=0;$i<=3;$i++) {
    $test[$i] = array($category['categories'][$i] => $category['categories'][$i]);
}

错误是由测试数组中的$i引起的。如果我删除它，导致错误。我没有这个错误的解决方案。

屏幕截图http://i.share.pho.to/f4a24cc3_o.png

Answer 1

您是否有使用for循环构建类别下拉列表的特定原因？

$test数组需要看起来像这样：

$test = array(
    1 => 'Pizza',
    2 => 'Sandwich',
    3 => 'Dessert',
    4 => 'Salad'
);

其中键是类别的关联ID，值是类别名称。在您加载数组的键和值时，使用整个类别（基于它的索引）。

如果您想将所有类别提取到下拉框中，我会建议类似下面的内容，因为这将允许您在将来添加其他类别，它们会显示在下拉框中：

foreach($category['categories'] as $category) {
    $test[$category['id']] = $category['name'];
}
$this->data['category'] = $test;

这会要求类别（我假设从数据库表中取出？）有id和name字段。

希望有帮助...

索引值也显示为数据库值

1 个答案: