How to perform case conversion or capitalize the first letter of a string in AnQi CMS?

In website content operation, the way text is presented often affects the reading experience of users and the brand image.Whether it is to unify brand style, improve the readability of the title, or highlight text in specific scenarios, converting strings to uppercase or title case is a common requirement.English CMS (EnglishCMS) provides several simple and efficient methods for handling these string formatting tasks with its flexible Django template engine syntax.

These operations do not require complex backend code modifications, just apply the corresponding filters in the template file, and it can be easily achieved.Below, let's take a detailed look at how to use these built-in features in the AnQi CMS to convert strings to uppercase and lowercase or capitalize the first letter.

Unified to lowercase:lowerFilter

When we want to convert all the English letters in a text to lowercase, we can uselowerFilter. This filter is very direct, it will traverse each English character in the string and convert it to lowercase.

The usage is very simple, just add after the variable to be converted|loweras follows:

{{ 你的变量 |lower }}

For example, if we have a variablemessage = "HELLO WORLD":

{{ message|lower }}

The output result will be:hello world

It is worth noting that,lowerThe filter only affects English letters, and it will not make any changes to Chinese characters or other non-English characters.

Convert to uppercase:upperFilter

WithlowerFilter relative, if we want to convert all the English letters in the text to uppercase,upperFilter is your ideal choice. It ensures that all English characters in the string are presented in uppercase.

The usage is also concise and clear, just add it after the variable|upperas follows:

{{ 你的变量 |upper }}

Suppose we have a variabletext = "hello world":

{{ text|upper }}

The output will be:HELLO WORLD

Similarly,upperThe filter only affects English letters and does not affect Chinese content.

Capitalization of the first letter: capfirstFilter

Sometimes, we may just need to capitalize the first letter of a sentence while keeping the rest of the sentence unchanged. At this time,capfirstThe filter comes into play. It identifies the first English letter in a string and converts it to uppercase.

The usage is as follows:

{{ 你的变量 |capfirst }}

For example, when the variablephrase = "hello there!":

{{ phrase|capfirst }}

The output result will be:Hello there!

This filter is especially suitable for processing irregular user input text, such as the first sentence of comments or messages, to ensure basic grammatical standards.

Each word with the first letter capitalized:titleFilter

When dealing with titles, names, or brand names, we often need to capitalize the first letter of each word.titleThe filter is designed for this purpose. It identifies each word in the string and converts the first letter to uppercase while the rest are converted to lowercase.

Usage instructions:

{{ 你的变量 |title }}

For example, when the variableheadline = "anqicms content management system":

{{ headline|title }}

The output will be:Anqicms Content Management System

This is very practical for maintaining the overall style consistency of the website content, especially when displaying article titles, product names, or list items.

Summarize the value of these tools

The AQCMS greatly simplifies the need for string formatting in content operation with these intuitive and powerful template filters.They make the display of front-end content more flexible, allowing for rapid response to brand standards and user experience requirements.Whether we want to unify the display format or personalize the processing in a specific context, these filters provide a convenient solution that can be easily implemented directly at the template level without delving into the code.

---

Common Questions and Answers (FAQ)

Q1: Are these case conversion filters effective for Chinese content?

A1:No.lower/upper/capfirstandtitleThese filters are mainly aimed at converting the case of English characters.When applied to a string containing Chinese characters, they will only process the English letters part, and Chinese characters will remain unchanged.{{ "安企CMS是一个好系统"|upper }}The output is still安企CMS是一个好系统.

Q2: Can I set the text case format directly in the content editor of the Anqi CMS backend?

A2:In general, the content editor (rich text editor) of the security CMS backend is mainly responsible for content input and basic layout, such as bold, italic, lists, etc.It usually does not provide the functionality to automatically convert text to a specific case format.The case conversion function mentioned above takes effect at the template level, meaning the content is stored in its original format in the database. It is only displayed as specified uppercase or lowercase according to the filter rules when rendered on the front-end page.

Q3: If I need to convert a string containing numbers and special characters (for example, “web3.0 is great!”) to have the first letter of each word capitalized,titlehow will the filter handle it?

A3: titleThe filter will try to identify words and convert their first letter.For strings containing numbers or special characters, it uses spaces or certain punctuation marks as word delimiters.Numbers and special characters themselves are not converted to uppercase or lowercase, but the English letters next to them may be affected.{{ "web3.0 is great!"|title }}it may outputWeb3.0 Is Great!Numbers and punctuation marks will be retained, and the first letter of each word will be capitalized.