Question

我已经在一个项目上工作了好几个月，我陷入困境。患有隧道视觉。

问题是;我正在使用该查询：

SELECT DISTINCT `kgsim_towns`.`name` as town, `kgsim_districts`.`name` as district, `status`, `category`, `type`, `attribute`
FROM (`ad_general`)
LEFT JOIN `kgsim_towns` ON `kgsim_towns`.`id` = `ad_general`.`town`
LEFT JOIN `kgsim_districts` ON `kgsim_districts`.`id` = `ad_general`.`district`

得到结果（不仅如此，但这足以让你了解）：

我想像这样构建一个superfish menu：

<ul>
    <li>
    Choose Category
            <ul>
                <li>
                Town 1
                    <ul>
                        <li>
                        District 1
                                <ul>
                                    <li>
                                        Status 1
                                            <ul>
                                                <li>
                                                    Category 1 
                                                        <ul>
                                                            <li>
                                                                Type 9 
                                                                    <ul>
                                                                        <li>
                                                                            attiribute 6
                                                                        </li>
                                                                    </ul>
                                                            </li>
                                                        </ul>
                                                </li>
                                            </ul>
                                    </li>
                                    <li>Status 2</li>
                                </ul>
                        </li>
                        <li>District 2</li>
                        <li>District 3</li>
                    </ul>
                </li>
                <li>Town 2</li>
                <li>Town 3</li>
                <li>Etc</li>
            </ul>
    </li>
<ul>

问题是如何实现这一目标？

Answer 1

第一种方法

修改选择以包含顺序：

SELECT DISTINCT 
   `kgsim_towns`.`name` as town, 
   `kgsim_districts`.`name` as district, 
   `status`, 
   `category`, 
   `type`, 
   `attribute`
FROM (`ad_general`)
LEFT JOIN `kgsim_towns` ON `kgsim_towns`.`id` = `ad_general`.`town`
LEFT JOIN `kgsim_districts` ON `kgsim_districts`.`id` = `ad_general`.`district`
ORDER BY 1,2,3,4,5,6

写数组数组（我用伪代码写，对不起）：

previous_town = ''
previous_district = ''
for each row in results:
   if previus_town != row.town
      array[row.town] = array()
      previous_town = row.town
      previous_district = ''
   if preious_district != row.district
      array[row.town][row.district] = array()
      previous_district = row.district
   ...

此时你有一组数组数组......

现在创建一个递归函数，将其转换为<ul><li>。有点像这样。（我用伪代码写的，对不起）：

function toli( array ) {

   str = "<ul>"
   for each key, value in array
     str += "<li>" + key +
            iif( value is array, toli(value), value )
            + "</li>"
   str += "</ul>

}

编辑，简单方法

为了减少问题的复杂性，您可以在嵌套循环中创建菜单：如果想要进行单个大查询，则应将此查询拆分为几个小问题：

$str = '<ul><li>Choose Category<ul>'
SELECT DISTINCT 
   `kgsim_towns`.`name` as town
FROM (`ad_general`)
LEFT JOIN `kgsim_towns` ON `kgsim_towns`.`id` = `ad_general`.`town`
LEFT JOIN `kgsim_districts` ON `kgsim_districts`.`id` = `ad_general`.`district`
ORDER BY 1,2,3,4,5,6
For each $town selected:
   $str = $str . '<li>' . $town . '<ul>'
   SELECT DISTINCT 
       `kgsim_districts`.`name` as district
   FROM (`ad_general`)
   LEFT JOIN `kgsim_towns` ON `kgsim_towns`.`id` = `ad_general`.`town`
   LEFT JOIN `kgsim_districts` ON `kgsim_districts`.`id` = `ad_general`.`district`
   WHERE
      `kgsim_towns`.`name` = $town
   ORDER BY 1,2,3,4,5,6
   For each $district selected:
      $str = $str . '<li>' . $district . '<ul>'
      SELECT DISTINCT 
       `status`
      FROM (`ad_general`)
      LEFT JOIN `kgsim_towns` ON `kgsim_towns`.`id` = `ad_general`.`town`
      LEFT JOIN `kgsim_districts` ON `kgsim_districts`.`id` = `ad_general`.`district`
      WHERE
        `kgsim_towns`.`name` = $town and
       `kgsim_districts`.`name` = $district
      ORDER BY 1,2,3,4,5,6
      For each $status selected:
         $str = $str . '<li>' . $status . '<ul>'

         //etc for category, type attribute ...

         $str = $str . '</ul>' //close status ul

      $str = $str . '</ul>'  //close district ul

   $str = $str . '</ul>'  //close town ul

Answer 2

最后我完成了这个功能。可能它不是最好的方法，例如，可能不需要为每一行运行array_unique函数。但仍然是迄今为止唯一可行的解决方案。

function superfish($array = array(), $array_language) {
foreach ($array as $key => $option) {
// town start
$town = $option['town'];
$array_new['town'][$key] = $town;
$array_new['town_unique'] = array_unique($array_new['town']);
// town finish

// district start
$district = $option['district'];
$town_district = $array_new['town'][$key];
$town_district .= "_district";
$town_district_unique = $town_district."_unique";
$array_new[$town_district][$key] = $district;
$array_new[$town_district_unique] = array_unique($array_new[$town_district]);
// district finish

// status start
$status = $option['status'];
$town_district_status = $town."_".$district."_status";
$town_district_status_unique = $town_district_status."_unique";
$array_new[$town_district_status][$key] = $status;
$array_new[$town_district_status_unique] = array_unique($array_new[$town_district_status]);
// status finish

// category start
$category = $option['category'];
$town_district_status_category = $town."_".$district."_".$status."_category";
$town_district_status_category_unique = $town_district_status_category."_unique";
$array_new[$town_district_status_category][$key] = $category;
$array_new[$town_district_status_category_unique] = array_unique($array_new[$town_district_status_category]);
// category finish

// type start
$type = $option['type'];
$town_district_status_category_type = $town."_".$district."_".$status."_".$category."_type";
$town_district_status_category_type_unique = $town_district_status_category_type."_unique";
$array_new[$town_district_status_category_type][$key] = $type;
$array_new[$town_district_status_category_type_unique] = array_unique($array_new[$town_district_status_category_type]);
// type finish

// özellik start
$attribute = $option['attribute'];
$town_district_status_category_type_attribute = $town."_".$district."_".$status."_".$category."_".$type."_attribute";
$town_district_status_category_type_attribute_unique = $town_district_status_category_type_attribute."_unique";
$array_new[$town_district_status_category_type_attribute][$key] = $attribute;
$array_new[$town_district_status_category_type_attribute_unique] = array_unique($array_new[$town_district_status_category_type_attribute]);     
// özellik finish


/*  $array_new['town']['district'][$key] = $option['district'];
$array_new['town']['district']['status'][$key] = $option['status'];
$array_new['town']['district']['status']['category'][$key] = $option['category'];
$array_new['town']['district']['status']['category']['type'] = $option['type'];
$array_new['town']['district']['status']['category']['type']['attribute'] = $option['attribute']; */
}

if(is_array($array_new['town_unique'])) {
// $array_superfish = "<div class=\"navbar\">";
$array_superfish = "<ul>";

foreach ($array_new['town_unique'] as $town) {
$array_superfish .= "<li><a><span class=\"menu-title\">";
$array_superfish .= $town;  
$array_superfish .= "</span></a>";
$town_district_unique = $town."_district_unique";
    if(is_array($array_new[$town_district_unique])) {
    $array_superfish .= "<ul>";
        foreach ($array_new[$town_district_unique] as $district) {
        $array_superfish .= "<li><a><span class=\"menu-title\">";
        $array_superfish .= $district;
        $array_superfish .= "</span></a>";
        $town_district_status_unique = $town."_".$district."_status_unique";
            if(is_array($array_new[$town_district_status_unique])) {
            $array_superfish .= "<ul>";
                foreach ($array_new[$town_district_status_unique] as $status) { 
                $array_superfish .= "<li><a><span class=\"menu-title\">";
                $array_superfish .= $array_language[11][$status];
                $array_superfish .= "</span></a>";
                $town_district_status_category_unique = $town."_".$district."_".$status."_category_unique";
                    if(is_array($array_new[$town_district_status_category_unique])) {
                    $array_superfish .= "<ul>";
                        foreach ($array_new[$town_district_status_category_unique] as $category) {
                        $array_superfish .= "<li><a><span class=\"menu-title\">";
                        $array_superfish .= $array_language[21][$category];
                        $array_superfish .= "</span></a>";
                        $town_district_status_category_type_unique = $town."_".$district."_".$status."_".$category."_type_unique";
                            if(is_array($array_new[$town_district_status_category_type_unique])) {
                            $array_superfish .= "<ul>";
                                foreach ($array_new[$town_district_status_category_type_unique] as $type) {
                                if($category==3 or $category==NULL)
                                $category = 2;  
                                $type_code = ''.$category.'31';
                                $array_superfish .= "<li><a><span class=\"menu-title\">";
                                $array_superfish .= $array_language[$type_code][$type];
                                $array_superfish .= "</span></a>";
                                $town_district_status_category_type_attribute_unique = $town."_".$district."_".$status."_".$category."_".$type."_attribute_unique";
                                    if(is_array($array_new[$town_district_status_category_type_attribute_unique])) {
                                    $array_superfish .= "<ul>";
                                        foreach ($array_new[$town_district_status_category_type_attribute_unique] as $attribute) {
                                            $array_superfish .= "<li><a><span class=\"menu-title\">";
                                            $genel_attribute_code = $array_language[101][$category]*10+2;
                                            $genel_attribute_metin = $array_language[$genel_attribute_code][$attribute];    
                                            $array_superfish .= $array_language[$genel_attribute_code][$attribute];
                                            $array_superfish .= "</span></a>";
                                            $array_superfish .= "</li>";
                                        }
                                    $array_superfish .= "</ul>";
                                    }

                                $array_superfish .= "</li>";    
                                }
                            $array_superfish .= "</ul>";
                            }
                        $array_superfish .= "</li>";
                        }
                    $array_superfish .= "</ul>";
                    }
                $array_superfish .= "</li>";
                }
            $array_superfish .= "</ul>";
            }
        $array_superfish .= "</li>";
        }
    $array_superfish .= "</ul>";
    }
$array_superfish .= "</li>";
}
$array_superfish .= "</ul>";
}   
//  $array_superfish .= "</div>";
return $array_superfish;
}

如何将SQL查询结果更改为superfish下拉菜单？

2 个答案: