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Add Phase 5: link-card fragments, oEmbed endpoints, OG meta

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- fetch_fragment_batch() for N+1 avoidance with per-key Redis cache
- link-card fragment handlers in blog, market, events, federation (single + batch mode)
- link_card.html templates per app with content-specific previews
- shared/infrastructure/oembed.py: build_oembed_response, build_og_meta, build_oembed_link_tag
- GET /oembed routes on blog, market, events
- og_meta + oembed_link rendering in base template <head>
- INTERNAL_URL_ARTDAG in docker-compose.yml for cross-stack fragment fetches

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-02-24 21:44:11 +00:00
parent 4d7f8cfea2
commit b3d853ad35
15 changed files with 601 additions and 0 deletions
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53
market/bp/fragments/routes.py
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@@ -49,6 +49,59 @@ def register():
_handlers["container-nav"] = _container_nav_handler
# --- link-card fragment: product preview card --------------------------------
async def _link_card_handler():
from sqlalchemy import select
from shared.models.market import Product
from shared.infrastructure.urls import market_url
slug = request.args.get("slug", "")
keys_raw = request.args.get("keys", "")
# Batch mode
if keys_raw:
slugs = [k.strip() for k in keys_raw.split(",") if k.strip()]
parts = []
for s in slugs:
parts.append(f"<!-- fragment:{s} -->")
product = (
await g.s.execute(select(Product).where(Product.slug == s))
).scalar_one_or_none()
if product:
parts.append(await render_template(
"fragments/link_card.html",
title=product.title,
image=product.image,
description_short=product.description_short,
brand=product.brand,
regular_price=product.regular_price,
special_price=product.special_price,
link=market_url(f"/product/{product.slug}/"),
))
return "\n".join(parts)
# Single mode
if not slug:
return ""
product = (
await g.s.execute(select(Product).where(Product.slug == slug))
).scalar_one_or_none()
if not product:
return ""
return await render_template(
"fragments/link_card.html",
title=product.title,
image=product.image,
description_short=product.description_short,
brand=product.brand,
regular_price=product.regular_price,
special_price=product.special_price,
link=market_url(f"/product/{product.slug}/"),
)
_handlers["link-card"] = _link_card_handler
bp._fragment_handlers = _handlers
return bp