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Facet results now have "truncated" field

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To indicate if there was more than 20 distinct values. Refs #255
This commit is contained in:
Simon Willison 2018-05-15 06:50:27 -03:00 • committed by Simon Willison
commit 142a550a99
3 changed files with 128 additions and 95 deletions
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14
datasette/views/table.py
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@ -490,6 +490,7 @@ class TableView(RowTableShared):
)
# facets support
FACET_SIZE = 20
try:
facets = request.args["_facet"]
except KeyError:
@ -499,18 +500,23 @@ class TableView(RowTableShared):
facet_sql = """
select {col} as value, count(*) as count
{from_sql} {and_or_where} {col} is not null
group by {col} order by count desc limit 20
group by {col} order by count desc limit {limit}
""".format(
col=escape_sqlite(column),
from_sql=from_sql,
and_or_where='and' if where_clauses else 'where',
limit=FACET_SIZE+1,
)
try:
facet_rows = await self.execute(
name, facet_sql, params, truncate=False, custom_time_limit=200
)
facet_results[column] = []
for row in facet_rows:
facet_results[column] = {
"name": column,
"results": [],
"truncated": len(facet_rows) > FACET_SIZE,
}
for row in facet_rows[:FACET_SIZE]:
selected = str(other_args.get(column)) == str(row["value"])
if selected:
toggle_path = path_with_removed_args(
@ -520,7 +526,7 @@ class TableView(RowTableShared):
toggle_path = path_with_added_args(
request, {column: row["value"]}
)
facet_results[column].append({
facet_results[column]["results"].append({
"value": row["value"],
"count": row["count"],
"toggle_url": urllib.parse.urljoin(