diff --git a/datasette/app.py b/datasette/app.py index 32a911c2..5fa4955c 100644 --- a/datasette/app.py +++ b/datasette/app.py @@ -631,6 +631,44 @@ class Datasette: else: return [] + async def _crumb_items(self, request, table=None, database=None): + crumbs = [] + # Top-level link + if await self.permission_allowed( + actor=request.actor, action="view-instance", default=True + ): + crumbs.append({"href": self.urls.instance(), "label": "home"}) + # Database link + if database: + if await self.permission_allowed( + actor=request.actor, + action="view-database", + resource=database, + default=True, + ): + crumbs.append( + { + "href": self.urls.database(database), + "label": database, + } + ) + # Table link + if table: + assert database, "table= requires database=" + if await self.permission_allowed( + actor=request.actor, + action="view-table", + resource=(database, table), + default=True, + ): + crumbs.append( + { + "href": self.urls.table(database, table), + "label": table, + } + ) + return crumbs + async def permission_allowed(self, actor, action, resource=None, default=False): """Check permissions using the permissions_allowed plugin hook""" result = None @@ -1009,6 +1047,8 @@ class Datasette: template_context = { **context, **{ + "request": request, + "crumb_items": self._crumb_items, "urls": self.urls, "actor": request.actor if request else None, "menu_links": menu_links, diff --git a/datasette/templates/_crumbs.html b/datasette/templates/_crumbs.html new file mode 100644 index 00000000..bd1ff0da --- /dev/null +++ b/datasette/templates/_crumbs.html @@ -0,0 +1,15 @@ +{% macro nav(request, database=None, table=None) -%} +{% if crumb_items is defined %} + {% set items=crumb_items(request=request, database=database, table=table) %} + {% if items %} +

+ {% for item in items %} + {{ item.label }} + {% if not loop.last %} + / + {% endif %} + {% endfor %} +

+ {% endif %} +{% endif %} +{%- endmacro %} diff --git a/datasette/templates/base.html b/datasette/templates/base.html index c3a71acb..87c939ac 100644 --- a/datasette/templates/base.html +++ b/datasette/templates/base.html @@ -1,4 +1,4 @@ - +{% import "_crumbs.html" as crumbs with context %} {% block title %}{% endblock %} @@ -17,7 +17,7 @@
-