Filters

Visualizer Templates: Filters

  • Evoq Engage

You can perform additional processing before displaying the value by passing the output through one or more filters separated by the pipeline (|).

Math

Filter Description Example
divided_by Divides the piped value by the specified integer. Rounds the result. Also see modulo.

{{ 10 | divided_by: 3 }}
                        
3
                        
minus Subtracts the specified value from the piped value. Also see plus.

{{ 4 | minus: 2 }}
                        
2
                        
modulo Returns the modulo (remainder) when the piped value is divided by the specified value. Also see divided_by.

{{ 3 | modulo: 2 }}
                        
1
                        
plus Adds the piped value and the specified value. If the values are numeric strings, the numbers are converted to integers, then added. Also see minus.

{{ 1 | plus: 1 }}
                        
2
                        
times Multiplies the piped value with the specified value.

{{ 5 | times: 4 }}
                        
20
                        

Strings

Filter Description Example
append Appends the specified string to the end of the piped string. Also see prepend.

{{ "the quick brown fox" | append: " jumped over" }}
                        
the quick brown fox jumped over
                        
capitalize Capitalizes the first letters of words in the piped string. Also see upcase and downcase.

{{ "the quick brown fox" | capitalize }}
{{ "jUmPeD OvEr tHe lAzY dOg" | capitalize }}
                        
The Quick Brown Fox
Jumped Over The Lazy Dog
                        
downcase Converts the piped string to lowercase. Also see upcase and capitalize.

{{ "THE QUICK BROWN FOX" | downcase }}
{{ "The QUICK Brown foX" | downcase }}
                        
the quick brown fox
the quick brown fox
                        
prepend Prepends a string. Also see append.

{{ "the lazy dog" | prepend: "jumped over " }}
                        
jumped over the lazy dog
                        
remove_first Removes the first occurrence of the specified string from the piped string. Also see remove and replace.

{{ "peppers" | remove_first: "pe" }}
                        
ppers
                        
remove Removes every occurrence of the specified string from the piped string. Also see remove_first and replace.

{{ "peppers" | remove: "pe" }}
                        
prs
                        
replace_first Replaces the first occurrence of the first specified string with the second specified string. Also see replace and remove_first.

{{ "peppers" | replace_first: "pe", "to" }}
                        
toppers
                        
replace Replaces every occurrence of the first specified string with the second specified string. Also see replace_first and remove.

{{ "peppers" | replace: "pe", "to" }}
                        
toptors
                        
size Returns the size of the piped array or string.

{{ "hello" | size }}
                        
5
                        
slice Returns a substring from the piped string, from the specified offset and with the specified number of characters. A negative offset will start counting from the end of the string.

{{ "hello" | slice: 1, 2 }}
{{ "hello" | slice: -3, 3 }}
                        
el
llo
                        
split Splits the piped string where the specified pattern is found, not including the search pattern. Also see Arrays.
Note: Arrays are converted to a string for display by simply concatenating the elements. The join can be used to format the array with a delimiter between each element.

{{ "a,b" | split: "," }}
{{ "a,b" | split: "," | join: "|"  }}
                        
ab
a|b
                        
strip_newlines Removes all newline characters ("\n") from the piped string.

If myMultiLineField is set to:


Twinkle, twinkle,
little star.
How I wonder
what you are.
                        

{{ myMultiLineText | strip_newlines }}
                        
Twinkle, twinkle,little star.How I wonderwhat you are.
                        
truncate Truncates the piped string and appends the optional second parameter, so that the length of the final result is the first parameter.

{{ "supercalifragilistic" | truncate: 8, "man" }}
{{ "supercalifragilistic" | truncate: 5, "nny" }}
                        
superman
sunny
                        
upcase Converts the piped string to uppercase.

{{ "hello" | upcase }}
                        
HELLO
                        

HTML and URL Encodings for Strings

The following filters can be used if the field contains a string.

Filter Description Example
escape_once Converts special characters in the string into HTML escape characters without affecting characters that are already HTML-escaped.  
escape Converts special characters in the string into HTML escape characters.  
newline_to_br Replaces each newline ("\n") with an HTML break (<br/>).  
strip_html Removes all HTML-encoded characters from the piped string.  
url_encode Converts the piped string to URL encoding.  

Link Creation for URLs

The following filters can be used if the field contains a URL. The examples use the {{ linkedIn }} field placeholder.

Filter Description Example
(no filter) Returns the URL as plain text.

{{ linkedIn }}
                        
http://www.linkedin.com/in/myexample
                        
link_new Creates a link that would load the target page in a new browser tab.

{{ linkedIn | link_new }}
                        
<a href="http://www.linkedin.com/in/myexample" target="_blank">
    http://www.linkedin.com/in/myexample</a>
                        

Arrays

Array indexes are zero-based; i.e., the first element's index is 0, and the last element's index is the number of elements minus 1. Example: If an array contains five elements, the index range is from 0 (for the first element) to 4 (for the last element).

Fields that are of the type Assets (images and documents) contain arrays; therefore, you can also use these filters with those fields.

These examples accept a string with comma-separated values, which is split into an array before the filter is applied. If the result is an array, the join filter combines the elements into a string with the tilde "~" as separator.

Note: Arrays are converted to a string for display by simply concatenating the elements. The join can be used to format the array with a delimiter between each element.
Filter Description Example
first Returns the first element of the piped array. Also see last.

{{ "dddd,bb,ccc,a" | split: "," | first }}
                        
dddd
                        
index_at Returns the URL of the element at the specified index. If the specified index is outside the valid range (0 to number of elements minus 1), nothing is returned.

{{ "dddd,bb,ccc,a" | split: "," | index_at: 2 }}
                        
ccc
                        
join Combines the elements of the piped array with the specified character inserted between each element.

{{ "dddd,bb,ccc,a" | split: "," | join "~" }}
                        
dddd~bb~ccc~a
                        
last Returns the last element of the piped array. Also see first.

{{ "dddd,bb,ccc,a" | split: "," | last }}
                        
a
                        
size Returns the size of the piped array or string.

{{ "dddd,bb,ccc,a" | split: "," | size }}
                        
4
                        
sort Sorts the elements of the array. See reverse.

{{ "dddd,bb,ccc,a" | split: "," | sort | join "~" }}
                        
a~bb~ccc~dddd
                        

Multiple Choice

These filters apply only to fields of the type Multiple Choice.

Filter Description Example
(no filter) For single-choice fields, returns the value of the selection. For multiple-selection fields, returns the list of the selections as a comma-separated list.

{{ mySingleSelection }}
{{ myMultipleSelection }}
                        
Choice 1
Choice 1, Choice 2
                        
list Returns an unordered list of the user's selections.

{{ myMultipleSelection | list }}
                        
<ul>
    <li>Choice 1</li>
    <li>Choice 2</li>
</ul>
                        
numberedlist Returns an ordered list of the user's selections, in the order of the selection.

{{ myMultipleSelection | numberedlist }}
                        
<ol>
    <li>Choice 1</li>
    <li>Choice 2</li>
</ol>
                        

Assets (Images and Documents)

These filters apply only to fields of the type Assets.

Filter Description Example
(no filter) Returns all images/documents. Images are wrapped in <img/> tags. Documents are wrapped in <a/> tags.

{{ myImages }}
{{ myDocuments }}
                        
<img src="https://dnn-centralsupport.zendesk.com/hc/article_attachments/360005751854/my-image-1.png" alt="my image 1" />
<img src="https://dnn-centralsupport.zendesk.com/hc/article_attachments/360005779473/my-image-2.png" alt="my image 2" />
<a target="__blank" href="https://example.com/doc-folder/my-document-1.pdf">Title of My Document 1</a>
<a target="__blank" href="https://example.com/doc-folder/my-document-2.pdf">Title of My Document 2</a>
                        

(Formatted for legibility.)

images_url Returns all the URLs of the images as plain text.

{{ myImages | images_url }}
                        
https://example.com/img-folder/my-image-1.png
https://example.com/img-folder/my-image-2.png
                        

(Formatted for legibility.)

images_list Returns an unordered list containing the images wrapped in <img /> tags.

{{ myImages | images_list }}
                        
<ul>
    <li><img src="https://dnn-centralsupport.zendesk.com/hc/article_attachments/360005751854/my-image-1.png" alt="my image 1" /></li>
    <li><img src="https://dnn-centralsupport.zendesk.com/hc/article_attachments/360005779473/my-image-2.png" alt="my image 2" /></li>
</ul>
                        
documents_url Returns all the URLs of the documents as plain text.

{{ myDocuments | documents_url }}
                        
https://example.com/doc-folder/my-document-1.pdf
https://example.com/doc-folder/my-document-2.pdf
                        

(Formatted for legibility.)

documents_list Returns an unordered list containing the document URLs wrapped in <href /> tags.

{{ myDocuments | documents_list }}
                        
<ul>
    <li><a target="__blank" href="https://example.com/doc-folder/my-document-1.pdf">Title of My Document 1</a></li>
    <li><a target="__blank" href="https://example.com/doc-folder/my-document-2.pdf">Title of My Document 2</a></li>
</ul>
                        

Misc

Filter Description Example
date Reformats a date. (See Datetime.)

{{ meetingTimeslot | date: "HH:mm" }}
                        
18:00
                        

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