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extra_css_urls and extra_js_urls for render_template()

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This commit is contained in:
Simon Willison 2020-02-04 08:22:04 -08:00
commit e05777d74f
2 changed files with 31 additions and 34 deletions
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31
datasette/app.py
View file

@ -1,6 +1,7 @@
import asyncio
import collections
import hashlib
import itertools
import json
import os
import re
@ -585,6 +586,8 @@ class Datasette:
"zip": zip,
"body_scripts": body_scripts,
"format_bytes": format_bytes,
"extra_css_urls": self._asset_urls("extra_css_urls", template, context),
"extra_js_urls": self._asset_urls("extra_js_urls", template, context),
},
**extra_template_vars,
}
@ -596,6 +599,34 @@ class Datasette:
)
return Response.html(await template.render_async(template_context))
def _asset_urls(self, key, template, context):
# Flatten list-of-lists from plugins:
seen_urls = set()
for url_or_dict in itertools.chain(
itertools.chain.from_iterable(
getattr(pm.hook, key)(
template=template.name,
database=context.get("database"),
table=context.get("table"),
datasette=self,
)
),
(self.metadata(key) or []),
):
if isinstance(url_or_dict, dict):
url = url_or_dict["url"]
sri = url_or_dict.get("sri")
else:
url = url_or_dict
sri = None
if url in seen_urls:
continue
seen_urls.add(url)
if sri:
yield {"url": url, "sri": sri}
else:
yield {"url": url}
def app(self):
"Returns an ASGI app function that serves the whole of Datasette"
default_templates = str(app_root / "datasette" / "templates")

34
datasette/views/base.py
View file

@ -72,34 +72,6 @@ class BaseView(AsgiView):
def database_color(self, database):
return "ff0000"
def _asset_urls(self, key, template, context):
# Flatten list-of-lists from plugins:
seen_urls = set()
for url_or_dict in itertools.chain(
itertools.chain.from_iterable(
getattr(pm.hook, key)(
template=template.name,
database=context.get("database"),
table=context.get("table"),
datasette=self.ds,
)
),
(self.ds.metadata(key) or []),
):
if isinstance(url_or_dict, dict):
url = url_or_dict["url"]
sri = url_or_dict.get("sri")
else:
url = url_or_dict
sri = None
if url in seen_urls:
continue
seen_urls.add(url)
if sri:
yield {"url": url, "sri": sri}
else:
yield {"url": url}
async def render(self, templates, request, context):
template = self.ds.jinja_env.select_template(templates)
return await self.ds.render_template(
@ -109,12 +81,6 @@ class BaseView(AsgiView):
**{
"database_url": self.database_url,
"database_color": self.database_color,
"extra_css_urls": self._asset_urls(
"extra_css_urls", template, context
),
"extra_js_urls": self._asset_urls(
"extra_js_urls", template, context
),
},
},
request=request,