Include views on homepage, fix table counts

If we have less than 5 tables we now also show one or more views in the
summary on the homepage.

Also corrected the logic for the row counts - we now count hidden and
visible tables separately.

Closes #373, Refs #460

datasette/templates/index.html

@@ -12,16 +12,16 @@
 {% for database in databases %}
     <h2 style="padding-left: 10px; border-left: 10px solid #{{ database.color }}"><a href="{{ database.path }}">{{ database.name }}</a></h2>
     <p>
-        {{ "{:,}".format(database.table_rows_sum) }} rows in {{ database.tables_count }} table{% if database.tables_count != 1 %}s{% endif %}{% if database.tables_count and database.hidden_tables_count %}, {% endif %}
-        {% if database.hidden_tables_count %}
-            {{ "{:,}".format(database.hidden_table_rows_sum) }} rows in {{ database.hidden_tables_count }} hidden table{% if database.hidden_tables_count != 1 %}s{% endif %}
-        {% endif %}
-        {% if database.views_count %}
-            {% if database.tables_count or database.hidden_tables_count %} - {% endif %}
+        {{ "{:,}".format(database.table_rows_sum) }} rows in {{ database.tables_count }} table{% if database.tables_count != 1 %}s{% endif %}{% if database.tables_count and database.hidden_tables_count %}, {% endif -%}
+        {% if database.hidden_tables_count -%}
+            {{ "{:,}".format(database.hidden_table_rows_sum) }} rows in {{ database.hidden_tables_count }} hidden table{% if database.hidden_tables_count != 1 %}s{% endif -%}
+        {% endif -%}
+        {% if database.views_count -%}
+            {% if database.tables_count or database.hidden_tables_count %}, {% endif -%}
             {{ "{:,}".format(database.views_count) }} view{% if database.views_count != 1 %}s{% endif %}
         {% endif %}
     </p>
-    <p>{% for table in database.tables_truncated %}<a href="{{ database.path }}/{{ table.name|quote_plus }}" title="{{ table.count }} rows">{{ table.name }}</a>{% if not loop.last %}, {% endif %}{% endfor %}{% if database.tables_more %}, <a href="{{ database.path }}">...</a>{% endif %}</p>
+    <p>{% for table in database.tables_and_views_truncated %}<a href="{{ database.path }}/{{ table.name|quote_plus }}"{% if table.count %} title="{{ table.count }} rows"{% endif %}>{{ table.name }}</a>{% if not loop.last %}, {% endif %}{% endfor %}{% if database.tables_and_views_more %}, <a href="{{ database.path }}">...</a>{% endif %}</p>
 {% endfor %}
 
 {% endblock %}

datasette/views/index.py

@@ -14,6 +14,9 @@ from datasette.version import __version__
 from .base import HASH_LENGTH, RenderMixin
 
 
+TRUNCATE_AT = 5
+
+
 class IndexView(RenderMixin):
     name = "index"
 
@@ -42,6 +45,21 @@ class IndexView(RenderMixin):
                     ),
                 }
             hidden_tables = [t for t in tables.values() if t["hidden"]]
+            visible_tables = [t for t in tables.values() if not t["hidden"]]
+
+            tables_and_views_truncated = list(
+                sorted(
+                    (t for t in tables.values() if t not in hidden_tables),
+                    key=lambda t: t["count"] or 0,
+                    reverse=True,
+                )[:TRUNCATE_AT]
+            )
+
+            # Only add views if this is less than TRUNCATE_AT
+            if len(tables_and_views_truncated) < TRUNCATE_AT:
+                num_views_to_add = TRUNCATE_AT - len(tables_and_views_truncated)
+                for view_name in views[:num_views_to_add]:
+                    tables_and_views_truncated.append({"name": view_name})
 
             databases.append(
                 {
@@ -51,13 +69,10 @@ class IndexView(RenderMixin):
                     if db.hash
                     else hashlib.md5(name.encode("utf8")).hexdigest()[:6],
                     "path": self.database_url(name),
-                    "tables_truncated": sorted(
-                        (t for t in tables.values() if t not in hidden_tables),
-                        key=lambda t: t["count"] or 0,
-                        reverse=True,
-                    )[:5],
-                    "tables_count": len(tables),
-                    "tables_more": len(tables) > 5,
+                    "tables_and_views_truncated": tables_and_views_truncated,
+                    "tables_and_views_more": (len(visible_tables) + len(views))
+                    > TRUNCATE_AT,
+                    "tables_count": len(visible_tables),
                     "table_rows_sum": sum((t["count"] or 0) for t in tables.values()),
                     "hidden_table_rows_sum": sum(
                         t["count"] for t in hidden_tables if t["count"] is not None

tests/fixtures.py

@@ -612,6 +612,8 @@ CREATE TABLE searchable (
   text2 text
 );
 
+CREATE VIEW searchable_view AS SELECT * FROM searchable;
+
 INSERT INTO searchable VALUES (1, 'barry cat', 'terry dog');
 INSERT INTO searchable VALUES (2, 'terry dog', 'sara weasel');
 

tests/test_api.py

@@ -24,9 +24,9 @@ def test_homepage(app_client):
     assert response.json.keys() == {"fixtures": 0}.keys()
     d = response.json["fixtures"]
     assert d["name"] == "fixtures"
-    assert d["tables_count"] == 26
-    assert len(d["tables_truncated"]) == 5
-    assert d["tables_more"] is True
+    assert d["tables_count"] == 21
+    assert len(d["tables_and_views_truncated"]) == 5
+    assert d["tables_and_views_more"] is True
     # 4 hidden FTS tables + no_primary_key (hidden in metadata)
     assert d["hidden_tables_count"] == 5
     # 201 in no_primary_key, plus 5 in other hidden tables:
@@ -448,8 +448,8 @@ def test_no_files_uses_memory_database(app_client_no_files):
             "path": "/:memory:",
             "table_rows_sum": 0,
             "tables_count": 0,
-            "tables_more": False,
-            "tables_truncated": [],
+            "tables_and_views_more": False,
+            "tables_and_views_truncated": [],
             "views_count": 0,
         }
     } == response.json

tests/test_html.py

@@ -32,16 +32,17 @@ def test_homepage(app_client_two_attached_databases):
     h2 = soup.select("h2")[1]
     assert "extra_database" == h2.text.strip()
     counts_p, links_p = h2.find_all_next("p")
-    assert "7 rows in 5 tables, 5 rows in 4 hidden tables" == counts_p.text.strip().replace(
-        "  ", ""
-    ).replace(
-        "\n", ""
+    assert (
+        "7 rows in 1 table, 5 rows in 4 hidden tables, 1 view" == counts_p.text.strip()
     )
     # We should only show visible, not hidden tables here:
     table_links = [
         {"href": a["href"], "text": a.text.strip()} for a in links_p.findAll("a")
     ]
-    assert [{"href": "/extra_database/searchable", "text": "searchable"}] == table_links
+    assert [
+        {"href": "/extra_database/searchable", "text": "searchable"},
+        {"href": "/extra_database/searchable_view", "text": "searchable_view"},
+    ] == table_links
 
 
 def test_memory_database_page(app_client_with_memory):