1. Summary
I can't set use variable inside variable in my Jinja2 example.
Solution must be Pelican-compatible.
2. MCVE
2.1. Expected behavior
Any text
Goddess Kira greatest of all time!
Goddess Kristina greatest of all time!
Another text
Goddess Sasha greatest of all time!
Goddess Katya greatest of all time!
2.2. my attempt
"""Jinja2 nested variables example."""
from jinja2 import Template
KIRA_BLOCK = """
{% set first_list = ['Kira', 'Kristina'] %}
Any text
{% for name in first_list %}
Goddess {{name}} greatest of all time!
{% endfor %}
{% set second_list = ['Sasha', 'Katya'] %}
Another text
{% for name in second_list %}
Goddess {{name}} greatest of all time!
{% endfor %}
"""
print(Template(KIRA_BLOCK).render())
2.3. Problem
I have duplicate Goddess and greatest of all time! in loops. Can I don't use duplicates?
3. Not helped
3.1. Similar questions
This, this, this and many others Stack Overflow questions.
3.2. Nested variables
For example, this code doesn't work:
"""Jinja2 nested variables example."""
from jinja2 import Template
KIRA_BLOCK = """
{% set she_greatest = 'Goddess' {{name}} 'greatest of all time!' %}
{% set first_list = ['Kira', 'Kristina'] %}
Any text
{% for name in first_list %}
{{she_greatest}}
{% endfor %}
{% set second_list = ['Sasha', 'Katya'] %}
Another text
{% for name in second_list %}
{{she_greatest}}
{% endfor %}
"""
print(Template(KIRA_BLOCK).render())
I get traceback:
Traceback (most recent call last):
File "KiraJinja2.py", line 18, in <module>
print(Template(KIRA_BLOCK).render())
File "C:\Python37\lib\site-packages\jinja2\environment.py", line 945, in __new__
return env.from_string(source, template_class=cls)
File "C:\Python37\lib\site-packages\jinja2\environment.py", line 880, in from_string
return cls.from_code(self, self.compile(source), globals, None)
File "C:\Python37\lib\site-packages\jinja2\environment.py", line 591, in compile
self.handle_exception(exc_info, source_hint=source_hint)
File "C:\Python37\lib\site-packages\jinja2\environment.py", line 780, in handle_exception
reraise(exc_type, exc_value, tb)
File "C:\Python37\lib\site-packages\jinja2\_compat.py", line 37, in reraise
raise value.with_traceback(tb)
File "<unknown>", line 2, in template
File "C:\Python37\lib\site-packages\jinja2\environment.py", line 497, in _parse
return Parser(self, source, name, encode_filename(filename)).parse()
File "C:\Python37\lib\site-packages\jinja2\parser.py", line 901, in parse
result = nodes.Template(self.subparse(), lineno=1)
File "C:\Python37\lib\site-packages\jinja2\parser.py", line 888, in subparse
self.stream.expect('block_end')
File "C:\Python37\lib\site-packages\jinja2\lexer.py", line 384, in expect
self.name, self.filename)
jinja2.exceptions.TemplateSyntaxError: expected token 'end of statement block', got '{'
4. Real example
For preventing XY Problem I post truncated real code:
4.1. Expected behavior
<div class="KiraCategory">First</div>
<a onclick="KiraFunction(document.all.sitename.value, 'https://Alpha.com');" class="Foo">Alpha</a>
<a onclick="KiraFunction(document.all.sitename.value, 'https://Bravo.ru');" class="Bar">Beta</a>
<div class="KiraCategory">Second</div>
<a onclick="KiraFunction(document.all.sitename.value, 'https://Charlie.net');" class="Baz">Gamma</a>
The example shows where static is and where variables.
4.2. my attempt
"""Jinja2 nested variables example."""
from jinja2 import Template
KIRA_BLOCK = """
{% set first_list = [
('https://Alpha.com', 'Foo', 'Alpha'),
('https://Bravo.ru', 'Bar', 'Beta')
] %}
<div class="KiraCategory">First</div>
{% for url, color, sitename in first_list %}
<a onclick="KiraFunction(document.all.sitename.value, '{{url}}');" class="{{color}}">{{sitename}}</a>
{% endfor %}
{% set second_list = [
('https://Charlie.net', 'Baz', 'Gamma'),
] %}
<div class="KiraCategory">Second</div>
{% for url, color, sitename in second_list %}
<a onclick="KiraFunction(document.all.sitename.value, '{{url}}');" class="{{color}}">{{sitename}}</a>
{% endfor %}
"""
print(Template(KIRA_BLOCK).render())
Duplicates in my attempt.