Question

是否可以使用键值对读取自定义选项的变量值？

我正在尝试在自定义函数中读取产品的选项值。我能够通过以下数组索引引用来读取值

import numpy as np import pandas as pd from scipy.optimize import minimize from sklearn.metrics import r2_score url = 'test_data.txt' x = pd.read_csv(url) e1 = x['strain'].values sigx = x['stress'].values e=np.array(e1) sig=np.array(sigx) j=[1000,1] def sig1(e): return j[0]*np.power(e,j[1]) def diff(e): return sig1(e)-sig def sqerr(e): return np.power(diff(e),2) res= minimize(sqerr,j,) print(res)

我通过在Neatbean调试模式下读取变量值来获得魔术数组索引ALPHABET = ("a".."z").to_a.join def encoder(str) str.tr(ALPHABET, ALPHABET.reverse) end。

但是不同产品的选项索引有所不同，因此我想使用类似关联数组的方式读取变量“序列号”的值。有可能吗？

产品页面上的选项如下图所示。

Answer 1

当您查看产品页面并说选择某些选项并单击“添加到购物车”时，帖子将带有此数组

$ _ POST ['option'] = array（93 =>'22222'）（如示例中所示）

93是$product_option_id，它允许您提取此请求所需的所有信息：

$product_id = $this->request->post['product_id'];
foreach ($this->request->post['option']) as $product_option_id => $value) {
    $option_query = $this->db->query("SELECT 
    po.product_option_id, 
    po.option_id, 
    od.name, 
    o.type 
    FROM " . DB_PREFIX . "product_option po 
    LEFT JOIN `" . DB_PREFIX . "option` o ON (po.option_id = o.option_id) 
    LEFT JOIN " . DB_PREFIX . "option_description od ON (o.option_id = od.option_id)
    WHERE po.product_option_id = '" . (int)$product_option_id . "' 
    AND po.product_id = '" . (int)$product_id . "' 
    AND od.language_id = '" . (int)$this->config->get('config_language_id') . "'");

    print_r($option_query->row);
}

此信息应足以进行任何带有选项的操作。

如果该选项的类型为select或radio，您可能还希望查询类似的可能变化

//... put this inside the foreach loop, listed above right after print_r($option_query->row);
if ($option_query->row['type'] == 'select' || $option_query->row['type'] == 'radio') {
    $option_value_query = $this->db->query("SELECT 
    pov.option_value_id, 
    ovd.name, 
    pov.quantity, 
    pov.subtract, 
    pov.price, 
    pov.price_prefix, 
    pov.points, 
    pov.points_prefix, 
    pov.weight, 
    pov.weight_prefix 
    FROM " . DB_PREFIX . "product_option_value pov 
    LEFT JOIN " . DB_PREFIX . "option_value ov ON (pov.option_value_id =     ov.option_value_id) 
    LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (ov.option_value_id = ovd.option_value_id) 
    WHERE pov.product_option_value_id = '" . (int)$value . "' 
    AND pov.product_option_id = '" . (int)$product_option_id . "' 
    AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

    print_r($option_value_query->row);
}

如果您有一个复选框（如上例所示）

//...also place this in the loop foreach in the code above.
if ($option_query->row['type'] == 'checkbox' && is_array($value)){
    foreach ($value as $product_option_value_id) {
        $option_value_query = $this->db->query("SELECT 
        pov.option_value_id, 
        pov.quantity, 
        pov.subtract, 
        pov.price, 
        pov.price_prefix, 
        pov.points, 
        pov.points_prefix, 
        pov.weight, 
        pov.weight_prefix, 
        ovd.name 
        FROM " . DB_PREFIX . "product_option_value pov 
        LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (pov.option_value_id = ovd.option_value_id) 
        WHERE pov.product_option_value_id = '" . (int)$product_option_value_id . "' 
        AND pov.product_option_id = '" . (int)$product_option_id . "' 
        AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

        print_r($option_value_query->row);
    }
}

您可以在system/library/cart/cart.php

中查看此确切的代码

希望这会有所帮助。

在Opencart 2.x的自定义脚本中读取产品的自定义选项的值

1 个答案: