从名称列生成 slug 名称列的简单方法？答案

【问题标题】：Easy way of generating a slug name column from the name column?从名称列生成 slug 名称列的简单方法？
【发布时间】：2013-04-17 16:24:20
【问题描述】：

db_products表：

| ID | Name         |
| 40 | Foo Bar!~~~~ |

我要生成一个slug名称列：

| ID | Name         | Slug_Name |
| 40 | Foo Bar!~~~~ | foo-bar   |

这实际上可以通过 SQL 完成吗？还是我需要使用不同的语言编写脚本？

编辑：我正在使用这个函数在 PHP 中生成 slug：

function toSlug($string,$space="-") {
    if (function_exists('iconv')) {
        $string = @iconv('UTF-8', 'ASCII//TRANSLIT', $string);
    }
    $string = preg_replace("/[^a-zA-Z0-9 -]/", "", $string);
    $string = strtolower($string);
    $string = str_replace(" ", $space, $string);
    return $string;
}

到目前为止，我的 SQL 技能相当基本。

ALTER TABLE db_products ADD Slug_Name VARCHAR

如何循环遍历每一行并设置Slug_Name = toSlug(Name) 但在 SQL 中？

【问题讨论】：

到目前为止你尝试过什么？ MySQL 有几个字符串操作函数。您可能需要专门查看 replace()、lower()、trim() 和 regexp()。

标签： mysql sql

【解决方案1】：

这里是一个简单的查询解决方案：

UPDATE `my_table` SET alias = lower(name),
alias = replace(alias, '.', ' '),
alias = replace(alias, '\'', '-'),
alias = replace(alias,'š','s'),
alias = replace(alias,'Ð','Dj'),
alias = replace(alias,'ž','z'),
alias = replace(alias,'Þ','B'),
alias = replace(alias,'ß','Ss'),
alias = replace(alias,'à','a'),
alias = replace(alias,'á','a'),
alias = replace(alias,'â','a'),
alias = replace(alias,'ã','a'),
alias = replace(alias,'ä','a'),
alias = replace(alias,'å','a'),
alias = replace(alias,'æ','a'),
alias = replace(alias,'ç','c'),
alias = replace(alias,'è','e'),
alias = replace(alias,'é','e'),
alias = replace(alias,'ê','e'),
alias = replace(alias,'ë','e'),
alias = replace(alias,'ì','i'),
alias = replace(alias,'í','i'),
alias = replace(alias,'î','i'),
alias = replace(alias,'ï','i'),
alias = replace(alias,'ð','o'),
alias = replace(alias,'ñ','n'),
alias = replace(alias,'ò','o'),
alias = replace(alias,'ó','o'),
alias = replace(alias,'ô','o'),
alias = replace(alias,'õ','o'),
alias = replace(alias,'ö','o'),
alias = replace(alias,'ø','o'),
alias = replace(alias,'ù','u'),
alias = replace(alias,'ú','u'),
alias = replace(alias,'û','u'),
alias = replace(alias,'ý','y'),
alias = replace(alias,'ý','y'),
alias = replace(alias,'þ','b'),
alias = replace(alias,'ÿ','y'),
alias = replace(alias,'ƒ','f'),
alias = replace(alias, 'œ', 'oe'),
alias = replace(alias, '€', 'euro'),
alias = replace(alias, '$', 'dollars'),
alias = replace(alias, '£', ''),
alias = trim(alias),
alias = replace(alias, ' ', '-'),
alias = replace(alias, '--', '-') ;

在这个例子中：

'my_table' 是表的名称，
'name' 是原始字段
'alias' 是我的 slug 字段的名称

希望对你有帮助！

【讨论】：

第 5 行出错，最后少了一个逗号。

【解决方案2】：

您当然可以使用 MySQL 进行字符串替换。 official documentation 列出了很多您可能会觉得有用的字符串函数。

SELECT REPLACE('Foo Bar!~~~~', '~', '');
SELECT LOWER('Foo Bar!');

我也遇到过这个blog post 在 MySQL 中使用正则表达式。

更新：我提到的博客文章中的详细信息：

所以我建议创建一个函数来进行正则表达式替换：

DELIMITER $$
FUNCTION `regex_replace`(pattern varchar(1000),replacement varchar(1000),original varchar(1000))
RETURNS varchar(1000)
DETERMINISTIC
BEGIN
DECLARE temp VARCHAR(1000);
DECLARE ch VARCHAR(1);
DECLARE i INT;
SET i = 1;
SET temp = original;
IF original REGEXP pattern THEN
    SET temp = "";
    loop_label: LOOP
    IF i>CHAR_LENGTH(original) THEN
        LEAVE loop_label;
    END IF;
    SET ch = SUBSTRING(original,i,1);
    IF NOT ch REGEXP pattern THEN
        SET temp = CONCAT(temp,ch);
    ELSE
        SET temp = CONCAT(temp,replacement);
    END IF;
    SET i=i+1;
END LOOP;
END IF;
RETURN temp;
END$$
DELIMITER ;

然后类似于以下内容

SELECT regex_replace('[^a-zA-Z0-9]+', '', '%$&?/’|test><+-,][)(' )

如果您对这种方法不满意，您可以随时使用 replace 运行一些更新调用

update db_products set Slug_Name = replace(Name, '~', '');

【讨论】：

结合TRIGGER这可能非常有效。没用过，不过好像应该是CREATE TRIGGER BEFORE INSERT FOR EACH ROW SET new.slug = COOL_REPLACE_FUNCTION(new.title);
所以，请帮助我了解您的要求。您在 PHP 中拥有看起来非常好的解决方案。您想更新数据库中已有的行吗？
不，创建一个新列，其中包含每一行的 slug 名称。

【解决方案3】：

我对 Erwan Dupeux-Maire 的回答进行了一些编辑，以解决我在 name 字段中的一些缺失字符：'、'、'&' 和 '/'

UPDATE `table` SET slug = lower(name),
slug = replace(slug, '.', ''),
slug = replace(slug, '\'', '-'),
slug = replace(slug, '/', '-'),
slug = replace(slug,'š','s'),
slug = replace(slug,'Ð','Dj'),
slug = replace(slug,'ž','z'),
slug = replace(slug,'Þ','B'),
slug = replace(slug,'ß','Ss'),
slug = replace(slug,'à','a'),
slug = replace(slug,'á','a'),
slug = replace(slug,'â','a'),
slug = replace(slug,'ã','a'),
slug = replace(slug,'ä','a'),
slug = replace(slug,'å','a'),
slug = replace(slug,'æ','a'),
slug = replace(slug,'ç','c'),
slug = replace(slug,'è','e'),
slug = replace(slug,'é','e'),
slug = replace(slug,'ê','e'),
slug = replace(slug,'ë','e'),
slug = replace(slug,'ì','i'),
slug = replace(slug,'í','i'),
slug = replace(slug,'î','i'),
slug = replace(slug,'ï','i'),
slug = replace(slug,'ð','o'),
slug = replace(slug,'ñ','n'),
slug = replace(slug,'ò','o'),
slug = replace(slug,'ó','o'),
slug = replace(slug,'ô','o'),
slug = replace(slug,'õ','o'),
slug = replace(slug,'ö','o'),
slug = replace(slug,'ø','o'),
slug = replace(slug,'ù','u'),
slug = replace(slug,'ú','u'),
slug = replace(slug,'û','u'),
slug = replace(slug,'ý','y'),
slug = replace(slug,'ý','y'),
slug = replace(slug,'þ','b'),
slug = replace(slug,'ÿ','y'),
slug = replace(slug,'ƒ','f'),
slug = replace(slug, 'œ', 'oe'),
slug = replace(slug, '€', 'euro'),
slug = replace(slug, '$', 'dollars'),
slug = replace(slug, '£', ''),
slug = trim(slug),
slug = replace(slug, ',', ''),
slug = replace(slug, '&', ''),
slug = replace(slug, ' ', '-'),
slug = replace(slug, '--', '-');

【讨论】：

【解决方案4】：

更改您的 tbl_name 和 field_name 和 slug_field_name

SELECT field_name,
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 LOWER(TRIM(field_name)), ':', ''), ')', ''), '(', ''), ',', ''), '\\', ''), '\/', ''), '\"', ''), '?', ''), '\'', ''), '&', ''), '!', ''), '.', ''), ' ', '-'), '--', '-'), '--', '-')
AS `slug_field_name`
FROM tbl_name

对于测试'Your String'结果your-string：

SELECT
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 LOWER(TRIM('Your String')), ':', ''), ')', ''), '(', ''), ',', ''), '\\', ''), '\/', ''), '\"', ''), '?', ''), '\'', ''), '&', ''), '!', ''), '.', ''), ' ', '-'), '--', '-'), '--', '-')
AS `slug_test`

对于特殊字符：

附加一个 [REPLACE(] 和一个 [, ':', '')]

例如此字符串中的 ö 字符“Hallo schöne Welt”

结果是“hallo-schone-welt”

SELECT
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
 REPLACE(
 LOWER(TRIM('Hallo schöne Welt')), 'ö', 'o'), ':', ''), ')', ''), '(', ''), ',', ''), '\\', ''), '\/', ''), '\"', ''), '?', ''), '\'', ''), '&', ''), '!', ''), '.', ''), ' ', '-'), '--', '-'), '--', '-')
AS `slug_test`

【讨论】：