In the daily content operation of AnQiCMS, we often encounter the need to limit the number of characters or words in user submitted content to ensure the quality and standardization of the content. Then, what does AnQiCMS provide?wordcountCan the filter help us achieve this goal? This article will delve deeper.wordcountThe function, usage, and application of the filter in content management, and point out its limitations, to help you better utilize this tool.

wordcountThe role of the filter

wordcountThe filter is a practical tool in the AnQiCMS template engine, as the name implies, it is mainly used to calculate the number of 'words' in a given text.It will identify and count words based on spaces in the content.wordcountThe filter will treat the entire text as a single word. In the end, it will return an integer value representing the number of words in the text.

This filter is particularly convenient when you need to make a rough assessment of the text length, or when dealing with text in a multilingual environment where words are separated by spaces.

How to use in AnQiCMS templatewordcountFilter

wordcountFilter can be found in the AnQiCMS template files (usually.htmlUsed directly in the suffix file), whether it is operating on a variable or calculating the content of a code block.

1. Apply to the variablewordcountFilter:This is the most common usage, simply add it after the variable that needs to be counted.|wordcountFor example, if we want to count the number of words in the content of a document:

{# 假设 archive.Content 存储了文档的内容 #}
<p>这篇文章包含 {{ archive.Content|wordcount }} 个单词。</p>

2. Apply to the code block contentwordcountFilter:If you need to count the number of words in a more complex content block dynamically generated by template tags, you can use{% filter %}{% endfilter %}structure. For example:

{% filter wordcount as total_words %}
    {% lorem 50 w %} {# 这里使用 lorem 标签生成50个单词的随机文本 #}
    这是额外添加的一些文本。
{% endfilter %}
<p>生成的文本总共有 {{ total_words }} 个单词。</p>

In this example,{% lorem 50 w %}It will generate 50 random words,wordcountThe filter calculates the total word count including additional text.

Check if the user's submitted content meets the minimum word count requirement.

Back to our original question: can we usewordcountThe filter to check the minimum word count requirement for user submitted content? The answer is:Yes, but it needs to be clarified in terms of its scenarios and limitations in specific applications.

wordcountThe filter is mainly used totemplate layerProcess and display the content.This means that it can perform word count on the content when it has already been stored in the database and called by the template.presentationStatistical results, or some actions based on this resultConditional judgmenttoPromptUser.

For example, you can check if the content reaches the minimum word count and receive corresponding prompts by the following methods on the article detail page or editing preview page.

{% set content_words = archive.Content|wordcount %}
{% set minimum_words_required = 100 %} {# 定义最低单词数要求 #}

{% if content_words < minimum_words_required %}
    <p style="color: red; font-weight: bold;">温馨提示：您提交的内容单词数量不足 {{ minimum_words_required }} 个，当前为 {{ content_words }} 个。请补充更多内容。</p>
{% else %}
    <p>内容单词数量符合要求，当前为 {{ content_words }} 个。</p>
{% endif %}

This code can be dynamically evaluated in the template.archive.ContentThe word count, and provide different feedback based on theminimum_words_requiredpreset value.

However, it should be emphasized that:If you want to display in the userSubmit content and enforce word count restrictions immediatelyand prevent the release of content that does not meet the requirements, which usually requires combining with the AnQiCMSbackend validation mechanismFor example, setting field validation rules in the content model orFront-end JavaScript real-time validationTo implement, not just what front-end template filters can do independently. Template filters are executed when the content is rendered, and cannot intercept the content before it is submitted to the server.

UsewordcountThe precautions and limitations to be taken

AlthoughwordcountThe filter is convenient, but in practical applications, we must pay attention to the following points:

  1. The impact of language differences on statistics: wordcountThe filter isspacesAs a word delimiter. This means that for languages such as Chinese, Japanese, and Korean that do not have obvious word delimiters,wordcountThe filter may not be able to count "word" or "number of wordswordcountThe filter may be considered as "1 word" (because it does not have spaces). If you need to count the number of Chinese characters,wordcountFilter is not applicable, you may need to look for other filters that can count the number of characters (such aslengthfilter) or a custom solution.

  2. Cooperation between frontend hints and backend verification:Template inwordcountsuitable for providinguser-friendly front-end hints, so that they can understand the length status of the content. But in order to ensure data integrity and prevent malicious submissions,backend server sideThe ultimate verification is indispensable.**Practice is usually: the front-end provides real-time word count and preliminary verification through JavaScript, and the back-end performs final strict verification after receiving the data.

  3. Accuracy and purpose:If your 'Minimum word count requirement' is very strict and needs to be accurate to the semantic level of each word,wordcountThe filter (based on spaces) may not fully meet your needs. It provides a statistical method based on text structure (spaces).

Summary

wordcountThe filter is a simple and efficient template tool in AnQiCMS, which can help us quickly count the number of words separated by spaces in the template level.It is very useful in scenarios such as providing content length hints, conditional display, etc., especially when dealing with Western language content.But when it comes to the word count requirements of languages that are not separated by spaces, such as Chinese, or when strict backend submission validation is required, we need to combine other features or technical means to achieve this.Understanding its working principle and limitations will help us use this feature more wisely and optimize our content operation strategy.

Common Questions (FAQ)

Q1:wordcountCan the filter accurately count the number of Chinese characters?A1: No.wordcountThe filter is based on spaces to distinguish words.For Chinese, Japanese, Korean and other languages that are not separated by spaces, it considers an entire text without spaces as a single word.Therefore, it cannot accurately count the actual number of Chinese characters.lengthFilter.

Q2: I want to limit the number of characters when the user submits content to the form.wordcountCan the filter be implemented directly?A2:wordcountThe filter is part of AnQiCMS template engine, which executes during server-side page rendering.It cannot intercept in real-time at the moment when the user fills out the form and clicks the submit button.To implement real-time word count and restriction before submission, it usually requires combining JavaScript code on the front end; at the same time, in order to ensure the规范性 of the content, the back end should also set corresponding validation rules.

Q3: BesideswordcountAnQiCMS also has what filters can be used to check the length of content?A3: AnQiCMS also provideslengthAn English filter to calculate the number of characters in a string (including Chinese characters, with each Chinese character counted as one), as well aslength_isThe filter to determine if the content length is equal to the specified value, returns a boolean result. You can choose the appropriate filter to check the content length according to your actual needs.