Jinja2 Extension for template debugging.
Project description
Jinja2-template_info is Jinja2 Extension module and piece of code to generate and show some template information which could help with debuging templates.
template_info
render(template, path, **kwargs)
That is simple function, which return rendered string from Jinja2. If there is debug variable set to positive variable in kawrgs, TemplateInfoExtension is used and attributes data and template was set.
- template:
template file name
- path:
path or paths, where jinja could find the template
- **kwargs:
data, which are send to template
>>> try:
... from importlib.resources import files
... except ImportError:
... from importlib_resources import files
>>> from jinja2_template_info import render
>>> path = (files('jinja2_template_info'), "./")
>>> render("test.html", path, debug=True,
... code_variable="Variable from code")
... # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
'<!DOCTYPE html>...</html>'class TemplateInfoExtension(Extension)
Extension class, which append TemplateInfo instance to template in template_info variable. This class contains own Undefined class, which is use to store undefined variables names. They are in template_info.undefined.
>>> try:
... from importlib.resources import files
... except ImportError:
... from importlib_resources import files
>>> from jinja2 import Environment, FileSystemLoader
>>> from jinja2_template_info import TemplateInfoExtension
>>> data = {"title":"Title"}
>>> path = (files('jinja2_template_info'), "./")
>>> env = Environment(loader=FileSystemLoader(path),
... extensions=[TemplateInfoExtension])
>>> env.globals["template_info"].data = data.copy()
>>> env.globals["template_info"].template = "test.html"
>>> template = env.get_template("test.html")
>>> template.render(data) # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
'<!DOCTYPE html>...</html>'template_info.html
This file contains some macros for better html output of variables. Becouse local template variables are readed only from each template, that must be used as macro argument.
render_info(local_variables=none)
Append debug output to template. Output is labeled with section name, some sections are shown only if they are set.
- Local Variables:
Variables from template, where render_info is call. Local variable could be get with template_info.context().get_exported()) call.
- Template:
Template file name (template_info variable).
- Input Variables:
kwargs data from render function (template_info variable).
- Context:
Context content without variables. There are all functions, macros and other objects set to environment.globals.
- Undefined objects:
List of undefined variables,functions, macros and other objects, which is not found and template want use it.
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