Jinja2: Difference between revisions
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Line 36: | Line 36: | ||
==Conditional== | ==Conditional== | ||
<syntaxhighlight lang='jinja'> | <syntaxhighlight lang='jinja'> | ||
{% if some_var -%} | {%if some_var == "something" -%} | ||
something | something | ||
something else {{ var_1 }} | something else {{ var_1 }} | ||
{% else %} | |||
something completely different {{ var_2 }} | |||
{%- endif %} | {%- endif %} | ||
</syntaxhighlight> | </syntaxhighlight> |
Revision as of 22:55, 2 March 2022
External
- https://medium.com/knoldus/jinja2-template-the-modern-design-friendly-templating-engine-a9218fec96e5
- https://jinja.palletsprojects.com/en/2.11.x/
- https://pypi.org/project/Jinja2/
Internal
Overview
Programming Model
Find out what the latest version is from https://pypi.org/project/Jinja2/
Then add this to your requirements.txt
jinja2 == 3.0.3
Once the virtual environment is updated, use it as such:
from pathlib import Path
from jinja2 import Environment, FileSystemLoader
template_dir = Path('...')
yaml = Environment(loader=FileSystemLoader(template_dir))\
.get_template('my-template.yaml.j2') \
.render(variable_1='some value', variable2='some other value')
Templating Language
Variable
raw content followed by {{ variable1 }}
Conditional
{%if some_var == "something" -%}
something
something else {{ var_1 }}
{% else %}
something completely different {{ var_2 }}
{%- endif %}
Whitespace Management
A leading dash removes all whitespace (including new lines) between the last non space template character and it. A trailing dash removes all whitespace (including new lines) between it and the next non-whitespace character from the template.
{{-
-}}
{%-
-%}