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Faceting WIP, refs #495

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This commit is contained in:
Simon Willison 2019-07-07 16:15:33 -07:00
commit 17e65fc26b
2 changed files with 19 additions and 11 deletions
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20
datasette/facets.py
View file

@ -499,22 +499,27 @@ class ManyToManyFacet(Facet):
"outgoing"
]
if len(other_table_outgoing_foreign_keys) == 2:
destination_table = [
fk_from_middle_table_to_other_table = [
t
for t in other_table_outgoing_foreign_keys
if t["other_table"] != self.table
][0]["other_table"]
][0]
destination_table = fk_from_middle_table_to_other_table["other_table"]
middle_table = other_table
m2m_config = json.dumps([
middle_table, destination_table
], separators=(",", ":"), sort_keys=True)
# Only suggest if it's not selected already
if ("_facet_m2m", destination_table) in args:
if ("_facet_m2m", m2m_config) in args:
continue
suggested_facets.append(
{
"name": destination_table,
"name": "{}.{}".format(middle_table, destination_table),
"type": "m2m",
"toggle_url": self.ds.absolute_url(
self.request,
path_with_added_args(
self.request, {"_facet_m2m": destination_table}
self.request, {"_facet_m2m": m2m_config}
),
),
}
@ -536,10 +541,10 @@ class ManyToManyFacet(Facet):
config = source_and_config["config"]
source = source_and_config["source"]
# The destination_table is specified in the _facet_m2m=xxx parameter
destination_table = config.get("column") or config["simple"]
m2m_config = config.get("column") or config["simple"]
# Find middle table - it has fks to self.table AND destination_table
middle_table, destination_table = json.loads(m2m_config)
fks = None
middle_table = None
for fk in incoming:
other_table = fk["other_table"]
other_table_outgoing_foreign_keys = all_foreign_keys[other_table][
@ -554,7 +559,6 @@ class ManyToManyFacet(Facet):
and len(other_table_outgoing_foreign_keys) == 2
):
fks = other_table_outgoing_foreign_keys
middle_table = other_table
break
if middle_table is None or fks is None:
return [], []

10
tests/test_html.py
View file

@ -385,12 +385,16 @@ def test_facet_display(app_client):
] == actual
def test_facets_persist_through_filter_form(app_client):
response = app_client.get("/fixtures/facetable?_facet=planet_int&_facet=city_id")
@pytest.mark.parametrize("path,expected_hiddens", [
("/fixtures/facetable?_facet=planet_int&_facet=city_id", [("_facet", "city_id"), ("_facet", "planet_int")]),
("/fixtures/roadside_attractions?_facet_m2m=attraction_characteristic", [("_facet", "city_id"), ("_facet", "planet_int")]),
])
def test_facets_persist_through_filter_form(app_client, path, expected_hiddens):
response = app_client.get(path)
assert response.status == 200
inputs = Soup(response.body, "html.parser").find("form").findAll("input")
hiddens = [i for i in inputs if i["type"] == "hidden"]
assert [("_facet", "city_id"), ("_facet", "planet_int")] == [
assert expected_hiddens == [
(hidden["name"], hidden["value"]) for hidden in hiddens
]