使用模板工具包从列表中过滤项目

发布于 2024-11-28 22:17:22 字数 334 浏览 3 评论 0原文

如何过滤 Template Toolkit 中动态生成的列表中的某些项目？我有一个 id 列表（也是动态生成的）和一个要排除的 id 列表，我需要只获取未排除的 id。最好的方法是什么？示例代码：

[% SET ids = [1,2,4,10,11,12,13,17,19,20,21,50,51] %]
[% SET id_excluded = [10,11,13,20,50] %]
[% FOREACH pid IN ids %]
    [% IF ?code to filter the ids? %]
        [% pid %]
    [% END %]
[% END %]

原文

How can I filter some items that are in a dynamically generated list in Template Toolkit?
I have a list of ids (also dynamically generated) and a list of ids to be excluded and I need to get just the ids that are not excluded. What the best way to do that??
Sample code:

[% SET ids = [1,2,4,10,11,12,13,17,19,20,21,50,51] %]
[% SET id_excluded = [10,11,13,20,50] %]
[% FOREACH pid IN ids %]
    [% IF ?code to filter the ids? %]
        [% pid %]
    [% END %]
[% END %]

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小忆控 2024-12-05 22:17:22

尝试使用 grep VMethod 来处理列表，例如：

[% SET ids = [1,2,4,10,11,12,13,17,19,20,21,50,51] %]
[% SET id_excluded = [10,11,13,20,50] %]
[% FOREACH pid IN ids %]
    [% UNLESS id_excluded.grep("^$pid\$").size %]
        [% pid %]
    [% END %]
[% END %]

它将产生以下结果：

1 2 4 12 17 19 21 51

Try the grep VMethod for lists, eg:

[% SET ids = [1,2,4,10,11,12,13,17,19,20,21,50,51] %]
[% SET id_excluded = [10,11,13,20,50] %]
[% FOREACH pid IN ids %]
    [% UNLESS id_excluded.grep("^$pid\$").size %]
        [% pid %]
    [% END %]
[% END %]

Which produces the following: