Use jinja2 for rendering
It does multi-line tags, which are really useful
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8 changed files with 35 additions and 105 deletions
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@ -2,7 +2,7 @@
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title: Test
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tags:
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- tag-1
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runtime_render: false
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runtime_render: true
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media: ./media.txt
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---
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@ -4,3 +4,5 @@ gunicorn
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markdown
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chrono
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django-debug-toolbar
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django-jinja
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jinja2-simple-tags
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@ -1,4 +1,3 @@
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{% load core_tags %}
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<head>
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<title>{{ page.title }}</title>
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</head>
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@ -1,12 +1,12 @@
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from django.db import models
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import markdown
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from django.utils.functional import cached_property
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from django.template import Template, Context
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from django.core.files.storage import storages
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from django.core.files import File
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from pathlib import Path
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import os.path
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from django.template import engines
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from django_jinja.backend import Origin
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class Tag(models.Model):
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__yamdl__ = True
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@ -72,13 +72,18 @@ class Page(models.Model):
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@cached_property
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def content_template(self):
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if self.runtime_render:
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return Template(self.content, name=self.slug)
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if (cached_template := self._template_cache.get(self.slug)) is None:
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cached_template = self._template_cache[self.slug] = Template(self.content, name=self.slug)
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if cached_template := self._template_cache.get(self.slug):
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return cached_template
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template = engines["jinja2"].from_string(self.content)
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template.origin = Origin(name=self.slug, template_name=self.slug)
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template.name = self.slug
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if not self.runtime_render:
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self._template_cache[self.slug] = template
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return template
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def get_context(self):
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return {
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"page": self
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@ -88,4 +93,4 @@ class Page(models.Model):
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if extra_context is None:
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extra_context = {}
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return self.content_template.render(Context({**self.get_context(), **extra_context}))
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return self.content_template.render({**self.get_context(), **extra_context})
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@ -1,86 +0,0 @@
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from inspect import getfullargspec, unwrap
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from django.template.library import parse_bits, SimpleNode
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from django.template.exceptions import TemplateSyntaxError
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from functools import wraps
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class SimpleBlockNode(SimpleNode):
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def __init__(self, nodelist, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.nodelist = nodelist
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def get_resolved_arguments(self, context):
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resolved_args, resolved_kwargs = super().get_resolved_arguments(context)
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# Restore the "content" argument.
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# It will move depending on whether takes_context was passed.
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resolved_args.insert(
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1 if self.takes_context else 0, self.nodelist.render(context)
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)
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return resolved_args, resolved_kwargs
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def simple_block_tag(register, takes_context=None, name=None):
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def dec(func):
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(
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params,
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varargs,
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varkw,
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defaults,
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kwonly,
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kwonly_defaults,
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_,
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) = getfullargspec(unwrap(func))
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function_name = name or func.__name__
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@wraps(func)
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def compile_func(parser, token):
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tag_params = params.copy()
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if takes_context:
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if len(tag_params) >= 2 and tag_params[1] == "content":
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del tag_params[1]
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else:
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raise TemplateSyntaxError(
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f"'{function_name}' is decorated with takes_context=True so"
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" it must have a first argument of 'context' and a second "
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"argument of 'content'"
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)
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else:
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if tag_params and tag_params[0] == "content":
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del tag_params[0]
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else:
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raise TemplateSyntaxError(
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f"'{function_name}' must have a first argument of 'content'"
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)
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bits = token.split_contents()[1:]
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target_var = None
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if len(bits) >= 2 and bits[-2] == "as":
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target_var = bits[-1]
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bits = bits[:-2]
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nodelist = parser.parse((f"end{function_name}",))
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parser.delete_first_token()
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args, kwargs = parse_bits(
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parser,
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bits,
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tag_params,
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varargs,
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varkw,
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defaults,
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kwonly,
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kwonly_defaults,
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takes_context,
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function_name,
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)
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return SimpleBlockNode(
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nodelist, func, takes_context, args, kwargs, target_var
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)
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register.tag(function_name, compile_func)
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return func
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return dec
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10
yamdl_playground/core/templatetags/__init__.py
Normal file
10
yamdl_playground/core/templatetags/__init__.py
Normal file
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@ -0,0 +1,10 @@
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from django_jinja import library
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from jinja2_simple_tags import ContainerTag
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@library.extension
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class MyTag(ContainerTag):
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tags = {"mytag"}
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def render(self, caller=None):
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return "foo{}bar".format(caller())
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@ -1,9 +0,0 @@
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from yamdl_playground.core.simple_tags import simple_block_tag
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from django import template
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register = template.Library()
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@simple_block_tag(register, takes_context=True)
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def mytag(context, content):
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return "foo{}bar".format(content)
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@ -58,6 +58,15 @@ TEMPLATES = [
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],
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},
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},
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{
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'BACKEND': 'django_jinja.jinja2.Jinja2',
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'DIRS': [],
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'APP_DIRS': True,
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'OPTIONS': {
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'app_dirname': "jinja2",
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"match_extension": ".html"
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}
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},
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]
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WSGI_APPLICATION = 'yamdl_playground.wsgi.application'
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