In website content operation, the way content is presented often determines the first impression and reading experience of users.How to ensure that the text information displayed in website templates is uniform, beautiful, and professional is a concern for many operators.AnQiCMS as a content management system that focuses on user experience and high customization, is well-versed in this field, and its powerful template engine provides a variety of practical filters to help us easily achieve string alignment control.

Today, let's delve deeper intocenter/ljustandrjustThese three filters and how they make strings flexible for alignment within a specified width, thus optimizing the visual layout of our website.

Master string alignment to enhance page aesthetics

In the daily website management, whether it is displaying product names, article summaries, or handling text in navigation menus or data tables, we may encounter scenarios where we need to accurately control the alignment of strings.If it is not aligned, the page will look scattered and affect the professionalism.The flexibility of AnQiCMS templates is largely due to its class Django-like template engine syntax, which includes these powerful string processing tools.

These three filters can fill strings within the specified width to achieve centering, left alignment, or right alignment.They are core idea is: If the length of your string is less than the total width you set, the system will automatically fill the remaining space with spaces.

centerFilter: Center content within a specified width

Imagine you have a fixed-width area where you want the title or phrase to be centered.centerThe filter comes into play. It adds spaces evenly on both sides of the string, making the string centered within the specified width.

For example, if you want the word 'test' to be centered within an area of 20 character width, you can use it like this:

'{{ "test"|center:20 }}'

The output result will be:' test '

Here, 'test' occupies 4 characters, and the remaining 16 characters are filled with spaces.centerThe filter will distribute these spaces as evenly as possible on both sides.If the number of remaining spaces is odd, it will slightly adjust to make the number of spaces on the right one less than on the left (or another strategy, depending on the implementation, but the purpose is visual centering).lengthFilter verification, you can see that the total length of the final string is indeed 20 characters.

{{ "test"|center:20|length }}

Output result:20

ljustFilter: Align the content to the left within the specified width.

If you want the string to always be displayed from the left, with all the extra whitespace left on the right,ljustThe filter is exactly what you need. It will keep the string aligned to the left and fill it with enough spaces on the right until it reaches the specified total width.

For example, align 'test' to the left within a width of 20 characters:

'{{ "test"|ljust:20 }}'

The output will be:'test '

You can see that 'test' is aligned closely to the left, and there are 16 spaces filled to the right.

rjustFilter: Align content to the right within a specified width

WithljustOn the contrary, when you need to display strings to the right and have all padding spaces on the left, you can userjustFilter. This is very useful for aligning numbers, dates, or prices, etc., making them look more orderly in tables or lists.

For example, align 'test' to the right within 20 character width:

'{{ "test"|rjust:20 }}'

The output will be:' test'

At this point, 'test' is flush with the right side, and 16 spaces are filled on the left.

Application scenarios and tips

These filters are very practical in the template customization of AnQiCMS.For example, in a multi-site management environment, you may need to maintain a consistent display width and alignment for the same content across different sub-sites (such as prices in product lists) to ensure brand image consistency.

  • Align navigation menuIn responsive design, when menu items need to display with fixed width at certain breakpoints, these filters can help you keep the text centered or aligned to the edge.
  • Product/Article SummaryIn the list page, if the length of the abstract content is uneven, but you want them to be visually aligned at the end or beginning, you can useljustorrjust.
  • Data tableIn custom data tables, these filters are crucial for keeping column content aligned neatly, especially for columns with a mix of numbers and text.

Tip:

  1. Do not truncate if it exceeds the widthAn extremely important behavior is that if the length of your original string has already exceeded the width you specified, these filters will not truncate the string.They will only output the string as it is, without any padding operation.This means you don't have to worry about important information being hidden.
  2. Support for Chinese characters：These filters are also effective for Chinese character strings. The template engine of AnQiCMS will correctly identify and process the length of Chinese characters, with one Chinese character being counted as one character.
  3. Combine use: You can use these alignment filters with other string processing filters (such astruncatecharsLimit length,upperConvert case, etc.) to achieve more complex display effects.

By using flexibilitycenter/ljustandrjustFilter, your AnQiCMS website will be able to present a more exquisite and professional layout, providing users with an excellent reading experience.

Common Questions (FAQ)

Q1：If the content of the string exceeds the width you set, what will the alignment effect be?

A1：When the actual length of your string is greater than the one passed throughcenter/ljustorrjustThe width set by the filter does not truncate the string or perform any padding.The string will be displayed completely according to its original length.This means you do not have to worry that important information will be hidden due to width restrictions.

Q2：These alignment filters support Chinese character strings?

A2：Yes, AnQiCMS's template engine has good support for Chinese characters. Whether it iscenter/ljustOrrjustFilter, when processing Chinese character strings, one Chinese character is correctly counted as one character length, and alignment and padding operations are performed accordingly.

Q3：除了默认的空格，我能用其他字符（例如点号.或星号*）来填充空白区域吗？

A3：目前 AnQiCMS 模板引擎的center/ljustandrjustThe filter defaults to using spaces for padding and does not directly provide an option to specify other padding characters. If you have special requirements, you can consider combining other string replacement filters to achieve this, for example, first align using spaces, then usereplaceThe filter replaces spaces with other characters. However, this increases the complexity of the template, and it is usually recommended to keep the default space padding to maintain simplicity.