...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
Excerpt |
---|
Tags are special blocks that perform operations on sections of the template and Expressions are literal expressions similar to those in javascript. |
On this page:
Table of Contents |
---|
You might want to look here for some more built-in tags and expressions in Nunjucks.
Tags
set
The set
tag creates or modifies a variable.
...
{% set comments = issue.fields.comment.comments %}
sets the comments variable with all the comment objects of the issue.
setContextVar
The setContextVar
tag creates or modifies a context variable. Context variables are used to pass information between post-functions in a Sequence of post-functions, a Shared Action or a Scheduled Action. Context variables are available through the transition.context
global variable. For example, if you create a context variable myVar
in the first post-function of the sequence:
Code Block |
---|
{% setContextVar myVar = "a value" %} |
This variable will then be available to subsequent post-functions as:
Code Block |
---|
{{ transition.context.myVar }} |
if
The if
tag tests a condition.
For example:
...
returns This is a task
if and only if the issue type is "Task".
for
The for
tag iterates over an array of values or objects.
...
iterates over the comments variable and displays each comment body.
include
The include tag pulls in other templates in place. It It's useful when you need to share smaller chunks across several templates. An An included template does not participate in the block structure of its including template; it has a totally separate inheritance tree and block namespace. In other words, an include
is not a an include
is not a pre-processor that pulls the included template code into the including template before rendering; instead, it fires off a separate render of the included template, and the results of that render are included.
Syntax:
Code Block |
---|
{% include "Test" %} |
where Test
is the name of the shared Nunjucks template saved in the Admin page.
import
The import
tag loads a template and allows you to access its exported values. Macros and top-level assignments are assignments are exported from templates, allowing you to access them in your current template.
Syntax:
Code Block |
---|
{% import "Test" as Test1 %} {{Test1.sum(2,3)}} {# Calling the macro sum #} |
...
Shared Nunjucks template:
Name of the template : Mappings
Code Block |
---|
{% macro priorityFromImpact(impact) %} {%- if impact == "Company wide" %} Highest {% elseif impact == "More than one project" %} High {% elseif impact == "Single project" or impact == "Individual" %} Medium {% else %} Low {% endif %} {% endmacro -%} |
...
Code Block |
---|
{% import "Mappings" as Mappings %} {{Mappings.priorityFromImpact(issue.fields.Impact)}} |
Whitespace control
The Nunjucks script outputs everything outside of variable and tag blocks verbatim, with all the whitespace (spaces, tabs, newlines,...) as it is in the script. For example, the following script:
Code Block | ||
---|---|---|
| ||
This issue is {% if issue.fields.priority.name == "Blocker" %} urgent {% else %} not urgent {% endif %} |
will result in the following output:
Code Block | ||
---|---|---|
| ||
This issue is not urgent |
If you don't want the extra whitespace between Nunjucks tags, then you can add the minus the minus sign (-
) to the start or end block to strip leading or trailing whitespace. For example:
Code Block | ||
---|---|---|
| ||
This issue is {%- if issue.fields.priority.name == "Blocker" %} urgent {%- else %} not urgent {%- endif %} |
will result in the following output:
Code Block | linenumbers | true
---|
This issue is not urgent |
See the Nunjucks documentation for more details.
Info |
---|
We already automatically remove spaces and carriage returns surrounding template result values in most post-functions. |
Expressions
Mathematical expressions
Nunjucks allows you to do simple calculations on numbers.
...
{{ OriginalEstimate*2 }}
doubles the original estimate of the issue.
Comparisons
Nunjucks allows you to compare two values or objects.
For example:
{{
issue.fields.issuetype.name
== "Task" }}
compares both values.
If
Nunjucks allows you to use if as an inline expression.
...