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SQL view-friendly arraycontains/arraynotcontains implementation, refs #448

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This commit is contained in:
Simon Willison 2021-11-15 15:41:07 -08:00
commit 07044bd130
2 changed files with 9 additions and 12 deletions
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10
datasette/filters.py
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@ -149,19 +149,13 @@ class Filters:
TemplatedFilter(
"arraycontains",
"array contains",
"""rowid in (
select {t}.rowid from {t}, json_each([{t}].[{c}]) j
where j.value = :{p}
)""",
""":{p} in (select value from json_each([{t}].[{c}]))""",
'{c} contains "{v}"',
),
TemplatedFilter(
"arraynotcontains",
"array does not contain",
"""rowid not in (
select {t}.rowid from {t}, json_each([{t}].[{c}]) j
where j.value = :{p}
)""",
""":{p} not in (select value from json_each([{t}].[{c}]))""",
'{c} does not contain "{v}"',
),
]

11
tests/test_filters.py
View file

@ -56,12 +56,15 @@ import pytest
# Not in, and JSON array not in
((("foo__notin", "1,2,3"),), ["foo not in (:p0, :p1, :p2)"], ["1", "2", "3"]),
((("foo__notin", "[1,2,3]"),), ["foo not in (:p0, :p1, :p2)"], [1, 2, 3]),
# JSON arraycontains
# JSON arraycontains, arraynotcontains
(
(("Availability+Info__arraycontains", "yes"),),
[
"rowid in (\n select table.rowid from table, json_each([table].[Availability+Info]) j\n where j.value = :p0\n )"
],
[":p0 in (select value from json_each([table].[Availability+Info]))"],
["yes"],
),
(
(("Availability+Info__arraynotcontains", "yes"),),
[":p0 not in (select value from json_each([table].[Availability+Info]))"],
["yes"],
),
],