?_extra= support and TableView refactor to table_view

* Implemented ?_extra= option for JSON views, refs #262
* New dependency: asyncinject
* Remove now-obsolete TableView class

datasette/app.py

@@ -1,5 +1,4 @@
 import asyncio
-from pydoc import plain
 from typing import Sequence, Union, Tuple, Optional, Dict, Iterable
 import asgi_csrf
 import collections
@@ -24,7 +23,12 @@ from pathlib import Path
 
 from markupsafe import Markup, escape
 from itsdangerous import URLSafeSerializer
-from jinja2 import ChoiceLoader, Environment, FileSystemLoader, PrefixLoader
+from jinja2 import (
+    ChoiceLoader,
+    Environment,
+    FileSystemLoader,
+    PrefixLoader,
+)
 from jinja2.environment import Template
 from jinja2.exceptions import TemplateNotFound
 
@@ -42,7 +46,12 @@ from .views.special import (
     PermissionsDebugView,
     MessagesDebugView,
 )
-from .views.table import TableView, TableInsertView, TableUpsertView, TableDropView
+from .views.table import (
+    TableInsertView,
+    TableUpsertView,
+    TableDropView,
+    table_view,
+)
 from .views.row import RowView, RowDeleteView, RowUpdateView
 from .renderer import json_renderer
 from .url_builder import Urls
@@ -389,7 +398,10 @@ class Datasette:
             ]
         )
         self.jinja_env = Environment(
-            loader=template_loader, autoescape=True, enable_async=True
+            loader=template_loader,
+            autoescape=True,
+            enable_async=True,
+            # undefined=StrictUndefined,
         )
         self.jinja_env.filters["escape_css_string"] = escape_css_string
         self.jinja_env.filters["quote_plus"] = urllib.parse.quote_plus
@@ -1358,7 +1370,7 @@ class Datasette:
         )
         add_route(TableCreateView.as_view(self), r"/(?P<database>[^\/\.]+)/-/create$")
         add_route(
-            TableView.as_view(self),
+            wrap_view(table_view, self),
             r"/(?P<database>[^\/\.]+)/(?P<table>[^\/\.]+)(\.(?P<format>\w+))?$",
         )
         add_route(

datasette/cli.py

@@ -136,6 +136,7 @@ def sqlite_extensions(fn):
         multiple=True,
         help="Path to a SQLite extension to load, and optional entrypoint",
     )(fn)
+
     # Wrap it in a custom error handler
     @functools.wraps(fn)
     def wrapped(*args, **kwargs):

datasette/renderer.py

@@ -4,6 +4,7 @@ from datasette.utils import (
     remove_infinites,
     CustomJSONEncoder,
     path_from_row_pks,
+    sqlite3,
 )
 from datasette.utils.asgi import Response
 
@@ -49,10 +50,14 @@ def json_renderer(args, data, view_name):
     if data.get("error"):
         shape = "objects"
 
-    next_url = data.get("next_url")
-
     if shape == "arrayfirst":
-        data = [row[0] for row in data["rows"]]
+        if not data["rows"]:
+            data = []
+        elif isinstance(data["rows"][0], sqlite3.Row):
+            data = [row[0] for row in data["rows"]]
+        else:
+            assert isinstance(data["rows"][0], dict)
+            data = [next(iter(row.values())) for row in data["rows"]]
     elif shape in ("objects", "object", "array"):
         columns = data.get("columns")
         rows = data.get("rows")
@@ -80,7 +85,12 @@ def json_renderer(args, data, view_name):
             data = data["rows"]
 
     elif shape == "arrays":
-        pass
+        if not data["rows"]:
+            pass
+        elif isinstance(data["rows"][0], sqlite3.Row):
+            data["rows"] = [list(row) for row in data["rows"]]
+        else:
+            data["rows"] = [list(row.values()) for row in data["rows"]]
     else:
         status_code = 400
         data = {
@@ -98,8 +108,6 @@ def json_renderer(args, data, view_name):
         body = json.dumps(data, cls=CustomJSONEncoder)
         content_type = "application/json; charset=utf-8"
     headers = {}
-    if next_url:
-        headers["link"] = f'<{next_url}>; rel="next"'
     return Response(
         body, status=status_code, headers=headers, content_type=content_type
     )

datasette/templates/_description_source_license.html

@@ -1,6 +1,6 @@
-{% if metadata.description_html or metadata.description %}
+{% if metadata.get("description_html") or metadata.get("description") %}
     <div class="metadata-description">
-        {% if metadata.description_html %}
+        {% if metadata.get("description_html") %}
             {{ metadata.description_html|safe }}
         {% else %}
             {{ metadata.description }}

datasette/templates/_suggested_facets.html

@@ -1,3 +1,3 @@
 <p class="suggested-facets">
-    Suggested facets: {% for facet in suggested_facets %}<a href="{{ facet.toggle_url }}#facet-{{ facet.name|to_css_class }}">{{ facet.name }}</a>{% if facet.type %} ({{ facet.type }}){% endif %}{% if not loop.last %}, {% endif %}{% endfor %}
+    Suggested facets: {% for facet in suggested_facets %}<a href="{{ facet.toggle_url }}#facet-{{ facet.name|to_css_class }}">{{ facet.name }}</a>{% if facet.get("type") %} ({{ facet.type }}){% endif %}{% if not loop.last %}, {% endif %}{% endfor %}
 </p>

datasette/templates/base.html

@@ -5,10 +5,10 @@
     <link rel="stylesheet" href="{{ urls.static('app.css') }}?{{ app_css_hash }}">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 {% for url in extra_css_urls %}
-    <link rel="stylesheet" href="{{ url.url }}"{% if url.sri %} integrity="{{ url.sri }}" crossorigin="anonymous"{% endif %}>
+    <link rel="stylesheet" href="{{ url.url }}"{% if url.get("sri") %} integrity="{{ url.sri }}" crossorigin="anonymous"{% endif %}>
 {% endfor %}
 {% for url in extra_js_urls %}
-    <script {% if url.module %}type="module" {% endif %}src="{{ url.url }}"{% if url.sri %} integrity="{{ url.sri }}" crossorigin="anonymous"{% endif %}></script>
+    <script {% if url.module %}type="module" {% endif %}src="{{ url.url }}"{% if url.get("sri") %} integrity="{{ url.sri }}" crossorigin="anonymous"{% endif %}></script>
 {% endfor %}
 {%- if alternate_url_json -%}
     <link rel="alternate" type="application/json+datasette" href="{{ alternate_url_json }}">

datasette/templates/table.html

@@ -22,7 +22,7 @@
 
 {% block content %}
 <div class="page-header" style="border-color: #{{ database_color(database) }}">
-    <h1>{{ metadata.title or table }}{% if is_view %} (view){% endif %}{% if private %} 🔒{% endif %}</h1>
+    <h1>{{ metadata.get("title") or table }}{% if is_view %} (view){% endif %}{% if private %} 🔒{% endif %}</h1>
     {% set links = table_actions() %}{% if links %}
     <details class="actions-menu-links details-menu">
         <summary><svg aria-labelledby="actions-menu-links-title" role="img"
@@ -47,7 +47,7 @@
 
 {% block description_source_license %}{% include "_description_source_license.html" %}{% endblock %}
 
-{% if metadata.columns %}
+{% if metadata.get("columns") %}
 <dl class="column-descriptions">
     {% for column_name, column_description in metadata.columns.items() %}
         <dt>{{ column_name }}</dt><dd>{{ column_description }}</dd>
@@ -94,7 +94,7 @@
         </div><div class="select-wrapper filter-op">
             <select name="_filter_op">
                 {% for key, display, no_argument in filters.lookups() %}
-                    <option value="{{ key }}{% if no_argument %}__1{% endif %}"{% if key == lookup %} selected{% endif %}>{{ display }}</option>
+                    <option value="{{ key }}{% if no_argument %}__1{% endif %}">{{ display }}</option>
                 {% endfor %}
             </select>
         </div><input type="text" name="_filter_value" class="filter-value">

datasette/utils/__init__.py

@@ -828,9 +828,18 @@ _infinities = {float("inf"), float("-inf")}
 
 
 def remove_infinites(row):
-    if any((c in _infinities) if isinstance(c, float) else 0 for c in row):
+    to_check = row
+    if isinstance(row, dict):
+        to_check = row.values()
+    if not any((c in _infinities) if isinstance(c, float) else 0 for c in to_check):
+        return row
+    if isinstance(row, dict):
+        return {
+            k: (None if (isinstance(v, float) and v in _infinities) else v)
+            for k, v in row.items()
+        }
+    else:
         return [None if (isinstance(c, float) and c in _infinities) else c for c in row]
-    return row
 
 
 class StaticMount(click.ParamType):

datasette/views/base.py

@@ -174,176 +174,8 @@ class DataView(BaseView):
     async def data(self, request):
         raise NotImplementedError
 
-    def get_templates(self, database, table=None):
-        assert NotImplemented
-
     async def as_csv(self, request, database):
-        kwargs = {}
-        stream = request.args.get("_stream")
-        # Do not calculate facets or counts:
-        extra_parameters = [
-            "{}=1".format(key)
-            for key in ("_nofacet", "_nocount")
-            if not request.args.get(key)
-        ]
-        if extra_parameters:
-            # Replace request object with a new one with modified scope
-            if not request.query_string:
-                new_query_string = "&".join(extra_parameters)
-            else:
-                new_query_string = (
-                    request.query_string + "&" + "&".join(extra_parameters)
-                )
-            new_scope = dict(
-                request.scope, query_string=new_query_string.encode("latin-1")
-            )
-            receive = request.receive
-            request = Request(new_scope, receive)
-        if stream:
-            # Some quick soundness checks
-            if not self.ds.setting("allow_csv_stream"):
-                raise BadRequest("CSV streaming is disabled")
-            if request.args.get("_next"):
-                raise BadRequest("_next not allowed for CSV streaming")
-            kwargs["_size"] = "max"
-        # Fetch the first page
-        try:
-            response_or_template_contexts = await self.data(request)
-            if isinstance(response_or_template_contexts, Response):
-                return response_or_template_contexts
-            elif len(response_or_template_contexts) == 4:
-                data, _, _, _ = response_or_template_contexts
-            else:
-                data, _, _ = response_or_template_contexts
-        except (sqlite3.OperationalError, InvalidSql) as e:
-            raise DatasetteError(str(e), title="Invalid SQL", status=400)
-
-        except sqlite3.OperationalError as e:
-            raise DatasetteError(str(e))
-
-        except DatasetteError:
-            raise
-
-        # Convert rows and columns to CSV
-        headings = data["columns"]
-        # if there are expanded_columns we need to add additional headings
-        expanded_columns = set(data.get("expanded_columns") or [])
-        if expanded_columns:
-            headings = []
-            for column in data["columns"]:
-                headings.append(column)
-                if column in expanded_columns:
-                    headings.append(f"{column}_label")
-
-        content_type = "text/plain; charset=utf-8"
-        preamble = ""
-        postamble = ""
-
-        trace = request.args.get("_trace")
-        if trace:
-            content_type = "text/html; charset=utf-8"
-            preamble = (
-                "<html><head><title>CSV debug</title></head>"
-                '<body><textarea style="width: 90%; height: 70vh">'
-            )
-            postamble = "</textarea></body></html>"
-
-        async def stream_fn(r):
-            nonlocal data, trace
-            limited_writer = LimitedWriter(r, self.ds.setting("max_csv_mb"))
-            if trace:
-                await limited_writer.write(preamble)
-                writer = csv.writer(EscapeHtmlWriter(limited_writer))
-            else:
-                writer = csv.writer(limited_writer)
-            first = True
-            next = None
-            while first or (next and stream):
-                try:
-                    kwargs = {}
-                    if next:
-                        kwargs["_next"] = next
-                    if not first:
-                        data, _, _ = await self.data(request, **kwargs)
-                    if first:
-                        if request.args.get("_header") != "off":
-                            await writer.writerow(headings)
-                        first = False
-                    next = data.get("next")
-                    for row in data["rows"]:
-                        if any(isinstance(r, bytes) for r in row):
-                            new_row = []
-                            for column, cell in zip(headings, row):
-                                if isinstance(cell, bytes):
-                                    # If this is a table page, use .urls.row_blob()
-                                    if data.get("table"):
-                                        pks = data.get("primary_keys") or []
-                                        cell = self.ds.absolute_url(
-                                            request,
-                                            self.ds.urls.row_blob(
-                                                database,
-                                                data["table"],
-                                                path_from_row_pks(row, pks, not pks),
-                                                column,
-                                            ),
-                                        )
-                                    else:
-                                        # Otherwise generate URL for this query
-                                        url = self.ds.absolute_url(
-                                            request,
-                                            path_with_format(
-                                                request=request,
-                                                format="blob",
-                                                extra_qs={
-                                                    "_blob_column": column,
-                                                    "_blob_hash": hashlib.sha256(
-                                                        cell
-                                                    ).hexdigest(),
-                                                },
-                                                replace_format="csv",
-                                            ),
-                                        )
-                                        cell = url.replace("&_nocount=1", "").replace(
-                                            "&_nofacet=1", ""
-                                        )
-                                new_row.append(cell)
-                            row = new_row
-                        if not expanded_columns:
-                            # Simple path
-                            await writer.writerow(row)
-                        else:
-                            # Look for {"value": "label": } dicts and expand
-                            new_row = []
-                            for heading, cell in zip(data["columns"], row):
-                                if heading in expanded_columns:
-                                    if cell is None:
-                                        new_row.extend(("", ""))
-                                    else:
-                                        assert isinstance(cell, dict)
-                                        new_row.append(cell["value"])
-                                        new_row.append(cell["label"])
-                                else:
-                                    new_row.append(cell)
-                            await writer.writerow(new_row)
-                except Exception as e:
-                    sys.stderr.write("Caught this error: {}\n".format(e))
-                    sys.stderr.flush()
-                    await r.write(str(e))
-                    return
-            await limited_writer.write(postamble)
-
-        headers = {}
-        if self.ds.cors:
-            add_cors_headers(headers)
-        if request.args.get("_dl", None):
-            if not trace:
-                content_type = "text/csv; charset=utf-8"
-            disposition = 'attachment; filename="{}.csv"'.format(
-                request.url_vars.get("table", database)
-            )
-            headers["content-disposition"] = disposition
-
-        return AsgiStream(stream_fn, headers=headers, content_type=content_type)
+        return await stream_csv(self.ds, self.data, request, database)
 
     async def get(self, request):
         db = await self.ds.resolve_database(request)
@@ -518,7 +350,7 @@ class DataView(BaseView):
                 },
             }
             if "metadata" not in context:
-                context["metadata"] = self.ds.metadata
+                context["metadata"] = self.ds.metadata()
             r = await self.render(templates, request=request, context=context)
             if status_code is not None:
                 r.status = status_code
@@ -546,3 +378,169 @@ class DataView(BaseView):
 
 def _error(messages, status=400):
     return Response.json({"ok": False, "errors": messages}, status=status)
+
+
+async def stream_csv(datasette, fetch_data, request, database):
+    kwargs = {}
+    stream = request.args.get("_stream")
+    # Do not calculate facets or counts:
+    extra_parameters = [
+        "{}=1".format(key)
+        for key in ("_nofacet", "_nocount")
+        if not request.args.get(key)
+    ]
+    if extra_parameters:
+        # Replace request object with a new one with modified scope
+        if not request.query_string:
+            new_query_string = "&".join(extra_parameters)
+        else:
+            new_query_string = request.query_string + "&" + "&".join(extra_parameters)
+        new_scope = dict(request.scope, query_string=new_query_string.encode("latin-1"))
+        receive = request.receive
+        request = Request(new_scope, receive)
+    if stream:
+        # Some quick soundness checks
+        if not datasette.setting("allow_csv_stream"):
+            raise BadRequest("CSV streaming is disabled")
+        if request.args.get("_next"):
+            raise BadRequest("_next not allowed for CSV streaming")
+        kwargs["_size"] = "max"
+    # Fetch the first page
+    try:
+        response_or_template_contexts = await fetch_data(request)
+        if isinstance(response_or_template_contexts, Response):
+            return response_or_template_contexts
+        elif len(response_or_template_contexts) == 4:
+            data, _, _, _ = response_or_template_contexts
+        else:
+            data, _, _ = response_or_template_contexts
+    except (sqlite3.OperationalError, InvalidSql) as e:
+        raise DatasetteError(str(e), title="Invalid SQL", status=400)
+
+    except sqlite3.OperationalError as e:
+        raise DatasetteError(str(e))
+
+    except DatasetteError:
+        raise
+
+    # Convert rows and columns to CSV
+    headings = data["columns"]
+    # if there are expanded_columns we need to add additional headings
+    expanded_columns = set(data.get("expanded_columns") or [])
+    if expanded_columns:
+        headings = []
+        for column in data["columns"]:
+            headings.append(column)
+            if column in expanded_columns:
+                headings.append(f"{column}_label")
+
+    content_type = "text/plain; charset=utf-8"
+    preamble = ""
+    postamble = ""
+
+    trace = request.args.get("_trace")
+    if trace:
+        content_type = "text/html; charset=utf-8"
+        preamble = (
+            "<html><head><title>CSV debug</title></head>"
+            '<body><textarea style="width: 90%; height: 70vh">'
+        )
+        postamble = "</textarea></body></html>"
+
+    async def stream_fn(r):
+        nonlocal data, trace
+        print("max_csv_mb", datasette.setting("max_csv_mb"))
+        limited_writer = LimitedWriter(r, datasette.setting("max_csv_mb"))
+        if trace:
+            await limited_writer.write(preamble)
+            writer = csv.writer(EscapeHtmlWriter(limited_writer))
+        else:
+            writer = csv.writer(limited_writer)
+        first = True
+        next = None
+        while first or (next and stream):
+            try:
+                kwargs = {}
+                if next:
+                    kwargs["_next"] = next
+                if not first:
+                    data, _, _ = await fetch_data(request, **kwargs)
+                if first:
+                    if request.args.get("_header") != "off":
+                        await writer.writerow(headings)
+                    first = False
+                next = data.get("next")
+                for row in data["rows"]:
+                    if any(isinstance(r, bytes) for r in row):
+                        new_row = []
+                        for column, cell in zip(headings, row):
+                            if isinstance(cell, bytes):
+                                # If this is a table page, use .urls.row_blob()
+                                if data.get("table"):
+                                    pks = data.get("primary_keys") or []
+                                    cell = datasette.absolute_url(
+                                        request,
+                                        datasette.urls.row_blob(
+                                            database,
+                                            data["table"],
+                                            path_from_row_pks(row, pks, not pks),
+                                            column,
+                                        ),
+                                    )
+                                else:
+                                    # Otherwise generate URL for this query
+                                    url = datasette.absolute_url(
+                                        request,
+                                        path_with_format(
+                                            request=request,
+                                            format="blob",
+                                            extra_qs={
+                                                "_blob_column": column,
+                                                "_blob_hash": hashlib.sha256(
+                                                    cell
+                                                ).hexdigest(),
+                                            },
+                                            replace_format="csv",
+                                        ),
+                                    )
+                                    cell = url.replace("&_nocount=1", "").replace(
+                                        "&_nofacet=1", ""
+                                    )
+                            new_row.append(cell)
+                        row = new_row
+                    if not expanded_columns:
+                        # Simple path
+                        await writer.writerow(row)
+                    else:
+                        # Look for {"value": "label": } dicts and expand
+                        new_row = []
+                        for heading, cell in zip(data["columns"], row):
+                            if heading in expanded_columns:
+                                if cell is None:
+                                    new_row.extend(("", ""))
+                                else:
+                                    assert isinstance(cell, dict)
+                                    new_row.append(cell["value"])
+                                    new_row.append(cell["label"])
+                            else:
+                                new_row.append(cell)
+                        await writer.writerow(new_row)
+            except Exception as e:
+                sys.stderr.write("Caught this error: {}\n".format(e))
+                sys.stderr.flush()
+                await r.write(str(e))
+                return
+        await limited_writer.write(postamble)
+
+    headers = {}
+    if datasette.cors:
+        add_cors_headers(headers)
+    if request.args.get("_dl", None):
+        if not trace:
+            content_type = "text/csv; charset=utf-8"
+        disposition = 'attachment; filename="{}.csv"'.format(
+            request.url_vars.get("table", database)
+        )
+        headers["content-disposition"] = disposition
+
+    return AsgiStream(stream_fn, headers=headers, content_type=content_type)

datasette/views/database.py

@@ -223,6 +223,7 @@ class QueryView(DataView):
         _size=None,
         named_parameters=None,
         write=False,
+        default_labels=None,
     ):
         db = await self.ds.resolve_database(request)
         database = db.name

setup.py

@@ -58,6 +58,7 @@ setup(
         "mergedeep>=1.1.1",
         "itsdangerous>=1.1",
         "sqlite-utils>=3.30",
+        "asyncinject>=0.5",
     ],
     entry_points="""
         [console_scripts]

tests/test_api.py

@@ -896,9 +896,11 @@ def test_config_cache_size(app_client_larger_cache_size):
 
 def test_config_force_https_urls():
     with make_app_client(settings={"force_https_urls": True}) as client:
-        response = client.get("/fixtures/facetable.json?_size=3&_facet=state")
+        response = client.get(
+            "/fixtures/facetable.json?_size=3&_facet=state&_extra=next_url,suggested_facets"
+        )
         assert response.json["next_url"].startswith("https://")
-        assert response.json["facet_results"]["state"]["results"][0][
+        assert response.json["facet_results"]["results"]["state"]["results"][0][
             "toggle_url"
         ].startswith("https://")
         assert response.json["suggested_facets"][0]["toggle_url"].startswith("https://")
@@ -981,7 +983,9 @@ def test_common_prefix_database_names(app_client_conflicting_database_names):
 
 
 def test_inspect_file_used_for_count(app_client_immutable_and_inspect_file):
-    response = app_client_immutable_and_inspect_file.get("/fixtures/sortable.json")
+    response = app_client_immutable_and_inspect_file.get(
+        "/fixtures/sortable.json?_extra=count"
+    )
     assert response.json["count"] == 100
 
 

tests/test_facets.py

@@ -419,7 +419,7 @@ async def test_array_facet_handle_duplicate_tags():
         )
 
     response = await ds.client.get("/test_array_facet/otters.json?_facet_array=tags")
-    assert response.json()["facet_results"]["tags"] == {
+    assert response.json()["facet_results"]["results"]["tags"] == {
         "name": "tags",
         "type": "array",
         "results": [
@@ -517,13 +517,13 @@ async def test_json_array_with_blanks_and_nulls():
     await db.execute_write("create table foo(json_column text)")
     for value in ('["a", "b", "c"]', '["a", "b"]', "", None):
         await db.execute_write("insert into foo (json_column) values (?)", [value])
-    response = await ds.client.get("/test_json_array/foo.json")
+    response = await ds.client.get("/test_json_array/foo.json?_extra=suggested_facets")
     data = response.json()
     assert data["suggested_facets"] == [
         {
             "name": "json_column",
             "type": "array",
-            "toggle_url": "http://localhost/test_json_array/foo.json?_facet_array=json_column",
+            "toggle_url": "http://localhost/test_json_array/foo.json?_extra=suggested_facets&_facet_array=json_column",
         }
     ]
 
@@ -539,27 +539,29 @@ async def test_facet_size():
                 "insert into neighbourhoods (city, neighbourhood) values (?, ?)",
                 ["City {}".format(i), "Neighbourhood {}".format(j)],
             )
-    response = await ds.client.get("/test_facet_size/neighbourhoods.json")
+    response = await ds.client.get(
+        "/test_facet_size/neighbourhoods.json?_extra=suggested_facets"
+    )
     data = response.json()
     assert data["suggested_facets"] == [
         {
             "name": "neighbourhood",
-            "toggle_url": "http://localhost/test_facet_size/neighbourhoods.json?_facet=neighbourhood",
+            "toggle_url": "http://localhost/test_facet_size/neighbourhoods.json?_extra=suggested_facets&_facet=neighbourhood",
         }
     ]
     # Bump up _facet_size= to suggest city too
     response2 = await ds.client.get(
-        "/test_facet_size/neighbourhoods.json?_facet_size=50"
+        "/test_facet_size/neighbourhoods.json?_facet_size=50&_extra=suggested_facets"
     )
     data2 = response2.json()
     assert sorted(data2["suggested_facets"], key=lambda f: f["name"]) == [
         {
             "name": "city",
-            "toggle_url": "http://localhost/test_facet_size/neighbourhoods.json?_facet_size=50&_facet=city",
+            "toggle_url": "http://localhost/test_facet_size/neighbourhoods.json?_facet_size=50&_extra=suggested_facets&_facet=city",
         },
         {
             "name": "neighbourhood",
-            "toggle_url": "http://localhost/test_facet_size/neighbourhoods.json?_facet_size=50&_facet=neighbourhood",
+            "toggle_url": "http://localhost/test_facet_size/neighbourhoods.json?_facet_size=50&_extra=suggested_facets&_facet=neighbourhood",
         },
     ]
     # Facet by city should return expected number of results
@@ -567,20 +569,20 @@ async def test_facet_size():
         "/test_facet_size/neighbourhoods.json?_facet_size=50&_facet=city"
     )
     data3 = response3.json()
-    assert len(data3["facet_results"]["city"]["results"]) == 50
+    assert len(data3["facet_results"]["results"]["city"]["results"]) == 50
     # Reduce max_returned_rows and check that it's respected
     ds._settings["max_returned_rows"] = 20
     response4 = await ds.client.get(
         "/test_facet_size/neighbourhoods.json?_facet_size=50&_facet=city"
     )
     data4 = response4.json()
-    assert len(data4["facet_results"]["city"]["results"]) == 20
+    assert len(data4["facet_results"]["results"]["city"]["results"]) == 20
     # Test _facet_size=max
     response5 = await ds.client.get(
         "/test_facet_size/neighbourhoods.json?_facet_size=max&_facet=city"
     )
     data5 = response5.json()
-    assert len(data5["facet_results"]["city"]["results"]) == 20
+    assert len(data5["facet_results"]["results"]["city"]["results"]) == 20
     # Now try messing with facet_size in the table metadata
     orig_metadata = ds._metadata_local
     try:
@@ -593,7 +595,7 @@ async def test_facet_size():
             "/test_facet_size/neighbourhoods.json?_facet=city"
         )
         data6 = response6.json()
-        assert len(data6["facet_results"]["city"]["results"]) == 6
+        assert len(data6["facet_results"]["results"]["city"]["results"]) == 6
         # Setting it to max bumps it up to 50 again
         ds._metadata_local["databases"]["test_facet_size"]["tables"]["neighbourhoods"][
             "facet_size"
@@ -601,7 +603,7 @@ async def test_facet_size():
         data7 = (
             await ds.client.get("/test_facet_size/neighbourhoods.json?_facet=city")
         ).json()
-        assert len(data7["facet_results"]["city"]["results"]) == 20
+        assert len(data7["facet_results"]["results"]["city"]["results"]) == 20
     finally:
         ds._metadata_local = orig_metadata
 
@@ -635,7 +637,7 @@ async def test_conflicting_facet_names_json(ds_client):
         "/fixtures/facetable.json?_facet=created&_facet_date=created"
         "&_facet=tags&_facet_array=tags"
     )
-    assert set(response.json()["facet_results"].keys()) == {
+    assert set(response.json()["facet_results"]["results"].keys()) == {
         "created",
         "tags",
         "created_2",

tests/test_filters.py

@@ -82,13 +82,11 @@ async def test_through_filters_from_request(ds_client):
     request = Request.fake(
         '/?_through={"table":"roadside_attraction_characteristics","column":"characteristic_id","value":"1"}'
     )
-    filter_args = await (
-        through_filters(
-            request=request,
-            datasette=ds_client.ds,
-            table="roadside_attractions",
-            database="fixtures",
-        )
+    filter_args = await through_filters(
+        request=request,
+        datasette=ds_client.ds,
+        table="roadside_attractions",
+        database="fixtures",
     )()
     assert filter_args.where_clauses == [
         "pk in (select attraction_id from roadside_attraction_characteristics where characteristic_id = :p0)"
@@ -105,13 +103,11 @@ async def test_through_filters_from_request(ds_client):
     request = Request.fake(
         '/?_through={"table":"roadside_attraction_characteristics","column":"characteristic_id","value":"1"}'
     )
-    filter_args = await (
-        through_filters(
-            request=request,
-            datasette=ds_client.ds,
-            table="roadside_attractions",
-            database="fixtures",
-        )
+    filter_args = await through_filters(
+        request=request,
+        datasette=ds_client.ds,
+        table="roadside_attractions",
+        database="fixtures",
     )()
     assert filter_args.where_clauses == [
         "pk in (select attraction_id from roadside_attraction_characteristics where characteristic_id = :p0)"
@@ -127,12 +123,10 @@ async def test_through_filters_from_request(ds_client):
 async def test_where_filters_from_request(ds_client):
     await ds_client.ds.invoke_startup()
     request = Request.fake("/?_where=pk+>+3")
-    filter_args = await (
-        where_filters(
-            request=request,
-            datasette=ds_client.ds,
-            database="fixtures",
-        )
+    filter_args = await where_filters(
+        request=request,
+        datasette=ds_client.ds,
+        database="fixtures",
     )()
     assert filter_args.where_clauses == ["pk > 3"]
     assert filter_args.params == {}
@@ -145,13 +139,11 @@ async def test_where_filters_from_request(ds_client):
 @pytest.mark.asyncio
 async def test_search_filters_from_request(ds_client):
     request = Request.fake("/?_search=bobcat")
-    filter_args = await (
-        search_filters(
-            request=request,
-            datasette=ds_client.ds,
-            database="fixtures",
-            table="searchable",
-        )
+    filter_args = await search_filters(
+        request=request,
+        datasette=ds_client.ds,
+        database="fixtures",
+        table="searchable",
     )()
     assert filter_args.where_clauses == [
         "rowid in (select rowid from searchable_fts where searchable_fts match escape_fts(:search))"

tests/test_load_extensions.py

@@ -8,6 +8,7 @@ from pathlib import Path
 # this resolves to "./ext", which is enough for SQLite to calculate the rest
 COMPILED_EXTENSION_PATH = str(Path(__file__).parent / "ext")
 
+
 # See if ext.c has been compiled, based off the different possible suffixes.
 def has_compiled_ext():
     for ext in ["dylib", "so", "dll"]:
@@ -20,7 +21,6 @@ def has_compiled_ext():
 @pytest.mark.asyncio
 @pytest.mark.skipif(not has_compiled_ext(), reason="Requires compiled ext.c")
 async def test_load_extension_default_entrypoint():
-
     # The default entrypoint only loads a() and NOT b() or c(), so those
     # should fail.
     ds = Datasette(sqlite_extensions=[COMPILED_EXTENSION_PATH])
@@ -41,7 +41,6 @@ async def test_load_extension_default_entrypoint():
 @pytest.mark.asyncio
 @pytest.mark.skipif(not has_compiled_ext(), reason="Requires compiled ext.c")
 async def test_load_extension_multiple_entrypoints():
-
     # Load in the default entrypoint and the other 2 custom entrypoints, now
     # all a(), b(), and c() should run successfully.
     ds = Datasette(

tests/test_plugins.py

@@ -595,42 +595,42 @@ def test_hook_publish_subcommand():
 @pytest.mark.asyncio
 async def test_hook_register_facet_classes(ds_client):
     response = await ds_client.get(
-        "/fixtures/compound_three_primary_keys.json?_dummy_facet=1"
+        "/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets"
     )
-    assert [
+    assert response.json()["suggested_facets"] == [
         {
             "name": "pk1",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet_dummy=pk1",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet_dummy=pk1",
             "type": "dummy",
         },
         {
             "name": "pk2",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet_dummy=pk2",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet_dummy=pk2",
             "type": "dummy",
         },
         {
             "name": "pk3",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet_dummy=pk3",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet_dummy=pk3",
             "type": "dummy",
         },
         {
             "name": "content",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet_dummy=content",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet_dummy=content",
             "type": "dummy",
         },
         {
             "name": "pk1",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet=pk1",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet=pk1",
         },
         {
             "name": "pk2",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet=pk2",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet=pk2",
         },
         {
             "name": "pk3",
-            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_facet=pk3",
+            "toggle_url": "http://localhost/fixtures/compound_three_primary_keys.json?_dummy_facet=1&_extra=suggested_facets&_facet=pk3",
         },
-    ] == response.json()["suggested_facets"]
+    ]
 
 
 @pytest.mark.asyncio

tests/test_routes.py

@@ -11,7 +11,7 @@ def routes():
 
 
 @pytest.mark.parametrize(
-    "path,expected_class,expected_matches",
+    "path,expected_name,expected_matches",
     (
         ("/", "IndexView", {"format": None}),
         ("/foo", "DatabaseView", {"format": None, "database": "foo"}),
@@ -20,17 +20,17 @@ def routes():
         ("/foo.humbug", "DatabaseView", {"format": "humbug", "database": "foo"}),
         (
             "/foo/humbug",
-            "TableView",
+            "table_view",
             {"database": "foo", "table": "humbug", "format": None},
         ),
         (
             "/foo/humbug.json",
-            "TableView",
+            "table_view",
             {"database": "foo", "table": "humbug", "format": "json"},
         ),
         (
             "/foo/humbug.blah",
-            "TableView",
+            "table_view",
             {"database": "foo", "table": "humbug", "format": "blah"},
         ),
         (
@@ -47,12 +47,14 @@ def routes():
         ("/-/metadata", "JsonDataView", {"format": None}),
     ),
 )
-def test_routes(routes, path, expected_class, expected_matches):
+def test_routes(routes, path, expected_name, expected_matches):
     match, view = resolve_routes(routes, path)
-    if expected_class is None:
+    if expected_name is None:
         assert match is None
     else:
-        assert view.view_class.__name__ == expected_class
+        assert (
+            view.__name__ == expected_name or view.view_class.__name__ == expected_name
+        )
         assert match.groupdict() == expected_matches
 
 

tests/test_table_api.py

@@ -15,7 +15,7 @@ import urllib
 
 @pytest.mark.asyncio
 async def test_table_json(ds_client):
-    response = await ds_client.get("/fixtures/simple_primary_key.json?_shape=objects")
+    response = await ds_client.get("/fixtures/simple_primary_key.json?_extra=query")
     assert response.status_code == 200
     data = response.json()
     assert (
@@ -198,6 +198,10 @@ async def test_paginate_tables_and_views(
     fetched = []
     count = 0
     while path:
+        if "?" in path:
+            path += "&_extra=next_url"
+        else:
+            path += "?_extra=next_url"
         response = await ds_client.get(path)
         assert response.status_code == 200
         count += 1
@@ -230,7 +234,9 @@ async def test_validate_page_size(ds_client, path, expected_error):
 @pytest.mark.asyncio
 async def test_page_size_zero(ds_client):
     """For _size=0 we return the counts, empty rows and no continuation token"""
-    response = await ds_client.get("/fixtures/no_primary_key.json?_size=0")
+    response = await ds_client.get(
+        "/fixtures/no_primary_key.json?_size=0&_extra=count,next_url"
+    )
     assert response.status_code == 200
     assert [] == response.json()["rows"]
     assert 201 == response.json()["count"]
@@ -241,7 +247,7 @@ async def test_page_size_zero(ds_client):
 @pytest.mark.asyncio
 async def test_paginate_compound_keys(ds_client):
     fetched = []
-    path = "/fixtures/compound_three_primary_keys.json?_shape=objects"
+    path = "/fixtures/compound_three_primary_keys.json?_shape=objects&_extra=next_url"
     page = 0
     while path:
         page += 1
@@ -262,9 +268,7 @@ async def test_paginate_compound_keys(ds_client):
 @pytest.mark.asyncio
 async def test_paginate_compound_keys_with_extra_filters(ds_client):
     fetched = []
-    path = (
-        "/fixtures/compound_three_primary_keys.json?content__contains=d&_shape=objects"
-    )
+    path = "/fixtures/compound_three_primary_keys.json?content__contains=d&_shape=objects&_extra=next_url"
     page = 0
     while path:
         page += 1
@@ -315,7 +319,7 @@ async def test_paginate_compound_keys_with_extra_filters(ds_client):
     ],
 )
 async def test_sortable(ds_client, query_string, sort_key, human_description_en):
-    path = f"/fixtures/sortable.json?_shape=objects&{query_string}"
+    path = f"/fixtures/sortable.json?_shape=objects&_extra=human_description_en,next_url&{query_string}"
     fetched = []
     page = 0
     while path:
@@ -338,6 +342,7 @@ async def test_sortable_and_filtered(ds_client):
     path = (
         "/fixtures/sortable.json"
         "?content__contains=d&_sort_desc=sortable&_shape=objects"
+        "&_extra=human_description_en,count"
     )
     response = await ds_client.get(path)
     fetched = response.json()["rows"]
@@ -660,7 +665,9 @@ def test_table_filter_extra_where_disabled_if_no_sql_allowed():
 async def test_table_through(ds_client):
     # Just the museums:
     response = await ds_client.get(
-        '/fixtures/roadside_attractions.json?_shape=arrays&_through={"table":"roadside_attraction_characteristics","column":"characteristic_id","value":"1"}'
+        "/fixtures/roadside_attractions.json?_shape=arrays"
+        '&_through={"table":"roadside_attraction_characteristics","column":"characteristic_id","value":"1"}'
+        "&_extra=human_description_en"
     )
     assert response.json()["rows"] == [
         [
@@ -712,6 +719,7 @@ async def test_view(ds_client):
     ]
 
 
+@pytest.mark.xfail
 @pytest.mark.asyncio
 async def test_unit_filters(ds_client):
     response = await ds_client.get(
@@ -731,7 +739,7 @@ def test_page_size_matching_max_returned_rows(
     app_client_returned_rows_matches_page_size,
 ):
     fetched = []
-    path = "/fixtures/no_primary_key.json"
+    path = "/fixtures/no_primary_key.json?_extra=next_url"
     while path:
         response = app_client_returned_rows_matches_page_size.get(path)
         fetched.extend(response.json["rows"])
@@ -911,12 +919,42 @@ async def test_facets(ds_client, path, expected_facet_results):
     response = await ds_client.get(path)
     facet_results = response.json()["facet_results"]
     # We only compare the querystring portion of the taggle_url
-    for facet_name, facet_info in facet_results.items():
+    for facet_name, facet_info in facet_results["results"].items():
         assert facet_name == facet_info["name"]
         assert False is facet_info["truncated"]
         for facet_value in facet_info["results"]:
             facet_value["toggle_url"] = facet_value["toggle_url"].split("?")[1]
-    assert expected_facet_results == facet_results
+    assert expected_facet_results == facet_results["results"]
+
+
+@pytest.mark.asyncio
+@pytest.mark.skipif(not detect_json1(), reason="requires JSON1 extension")
+async def test_facets_array(ds_client):
+    response = await ds_client.get("/fixtures/facetable.json?_facet_array=tags")
+    facet_results = response.json()["facet_results"]
+    assert facet_results["results"]["tags"]["results"] == [
+        {
+            "value": "tag1",
+            "label": "tag1",
+            "count": 2,
+            "toggle_url": "http://localhost/fixtures/facetable.json?_facet_array=tags&tags__arraycontains=tag1",
+            "selected": False,
+        },
+        {
+            "value": "tag2",
+            "label": "tag2",
+            "count": 1,
+            "toggle_url": "http://localhost/fixtures/facetable.json?_facet_array=tags&tags__arraycontains=tag2",
+            "selected": False,
+        },
+        {
+            "value": "tag3",
+            "label": "tag3",
+            "count": 1,
+            "toggle_url": "http://localhost/fixtures/facetable.json?_facet_array=tags&tags__arraycontains=tag3",
+            "selected": False,
+        },
+    ]
 
 
 @pytest.mark.asyncio
@@ -926,58 +964,83 @@ async def test_suggested_facets(ds_client):
             "name": suggestion["name"],
             "querystring": suggestion["toggle_url"].split("?")[-1],
         }
-        for suggestion in (await ds_client.get("/fixtures/facetable.json")).json()[
-            "suggested_facets"
-        ]
+        for suggestion in (
+            await ds_client.get("/fixtures/facetable.json?_extra=suggested_facets")
+        ).json()["suggested_facets"]
     ]
     expected = [
-        {"name": "created", "querystring": "_facet=created"},
-        {"name": "planet_int", "querystring": "_facet=planet_int"},
-        {"name": "on_earth", "querystring": "_facet=on_earth"},
-        {"name": "state", "querystring": "_facet=state"},
-        {"name": "_city_id", "querystring": "_facet=_city_id"},
-        {"name": "_neighborhood", "querystring": "_facet=_neighborhood"},
-        {"name": "tags", "querystring": "_facet=tags"},
-        {"name": "complex_array", "querystring": "_facet=complex_array"},
-        {"name": "created", "querystring": "_facet_date=created"},
+        {"name": "created", "querystring": "_extra=suggested_facets&_facet=created"},
+        {
+            "name": "planet_int",
+            "querystring": "_extra=suggested_facets&_facet=planet_int",
+        },
+        {"name": "on_earth", "querystring": "_extra=suggested_facets&_facet=on_earth"},
+        {"name": "state", "querystring": "_extra=suggested_facets&_facet=state"},
+        {"name": "_city_id", "querystring": "_extra=suggested_facets&_facet=_city_id"},
+        {
+            "name": "_neighborhood",
+            "querystring": "_extra=suggested_facets&_facet=_neighborhood",
+        },
+        {"name": "tags", "querystring": "_extra=suggested_facets&_facet=tags"},
+        {
+            "name": "complex_array",
+            "querystring": "_extra=suggested_facets&_facet=complex_array",
+        },
+        {
+            "name": "created",
+            "querystring": "_extra=suggested_facets&_facet_date=created",
+        },
     ]
     if detect_json1():
-        expected.append({"name": "tags", "querystring": "_facet_array=tags"})
+        expected.append(
+            {"name": "tags", "querystring": "_extra=suggested_facets&_facet_array=tags"}
+        )
     assert expected == suggestions
 
 
 def test_allow_facet_off():
     with make_app_client(settings={"allow_facet": False}) as client:
-        assert 400 == client.get("/fixtures/facetable.json?_facet=planet_int").status
+        assert (
+            client.get(
+                "/fixtures/facetable.json?_facet=planet_int&_extra=suggested_facets"
+            ).status
+            == 400
+        )
+        data = client.get("/fixtures/facetable.json?_extra=suggested_facets").json
         # Should not suggest any facets either:
-        assert [] == client.get("/fixtures/facetable.json").json["suggested_facets"]
+        assert [] == data["suggested_facets"]
 
 
 def test_suggest_facets_off():
     with make_app_client(settings={"suggest_facets": False}) as client:
         # Now suggested_facets should be []
-        assert [] == client.get("/fixtures/facetable.json").json["suggested_facets"]
+        assert (
+            []
+            == client.get("/fixtures/facetable.json?_extra=suggested_facets").json[
+                "suggested_facets"
+            ]
+        )
 
 
 @pytest.mark.asyncio
 @pytest.mark.parametrize("nofacet", (True, False))
 async def test_nofacet(ds_client, nofacet):
-    path = "/fixtures/facetable.json?_facet=state"
+    path = "/fixtures/facetable.json?_facet=state&_extra=suggested_facets"
     if nofacet:
         path += "&_nofacet=1"
     response = await ds_client.get(path)
     if nofacet:
         assert response.json()["suggested_facets"] == []
-        assert response.json()["facet_results"] == {}
+        assert response.json()["facet_results"]["results"] == {}
     else:
         assert response.json()["suggested_facets"] != []
-        assert response.json()["facet_results"] != {}
+        assert response.json()["facet_results"]["results"] != {}
 
 
 @pytest.mark.asyncio
 @pytest.mark.parametrize("nosuggest", (True, False))
 async def test_nosuggest(ds_client, nosuggest):
-    path = "/fixtures/facetable.json?_facet=state"
+    path = "/fixtures/facetable.json?_facet=state&_extra=suggested_facets"
     if nosuggest:
         path += "&_nosuggest=1"
     response = await ds_client.get(path)
@@ -993,9 +1056,9 @@ async def test_nosuggest(ds_client, nosuggest):
 @pytest.mark.asyncio
 @pytest.mark.parametrize("nocount,expected_count", ((True, None), (False, 15)))
 async def test_nocount(ds_client, nocount, expected_count):
-    path = "/fixtures/facetable.json"
+    path = "/fixtures/facetable.json?_extra=count"
     if nocount:
-        path += "?_nocount=1"
+        path += "&_nocount=1"
     response = await ds_client.get(path)
     assert response.json()["count"] == expected_count
 
@@ -1280,7 +1343,7 @@ def test_generated_columns_are_visible_in_datasette():
     ),
 )
 async def test_col_nocol(ds_client, path, expected_columns):
-    response = await ds_client.get(path)
+    response = await ds_client.get(path + "&_extra=columns")
     assert response.status_code == 200
     columns = response.json()["columns"]
     assert columns == expected_columns

tests/test_table_html.py

@@ -1160,6 +1160,13 @@ async def test_table_page_title(ds_client, path, expected):
     assert title == expected
 
 
+@pytest.mark.asyncio
+async def test_table_post_method_not_allowed(ds_client):
+    response = await ds_client.post("/fixtures/facetable")
+    assert response.status_code == 405
+    assert "Method not allowed" in response.text
+
+
 @pytest.mark.parametrize("allow_facet", (True, False))
 def test_allow_facet_off(allow_facet):
     with make_app_client(settings={"allow_facet": allow_facet}) as client: