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Address review comments r=rnewman

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This commit is contained in:
Emily Toop 2017-06-23 12:59:54 +01:00
parent 9c677a5bb1
commit 58e43a878a
3 changed files with 22 additions and 15 deletions
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9
query-algebrizer/src/clauses/mod.rs
View file

@ -611,15 +611,8 @@ impl ConjoiningClauses {
}
/// Ensure that the given place has the correct types to be a tx-id.
/// Right now this is mostly unimplemented: we fail hard if anything but a placeholder is
/// present.
fn constrain_to_tx(&mut self, tx: &PatternNonValuePlace) {
match *tx {
PatternNonValuePlace::Variable(ref v) => self.constrain_var_to_type(v.clone(), ValueType::Ref),
PatternNonValuePlace::Placeholder |
PatternNonValuePlace::Entid(_) |
PatternNonValuePlace::Ident(_) => (),
}
self.constrain_to_ref(tx);
}
/// Ensure that the given place can be an entity, and is congruent with existing types.

5
query-algebrizer/src/clauses/pattern.rs
View file

@ -241,14 +241,15 @@ impl ConjoiningClauses {
},
}
// TODO pattern.tx -> like handling entity place
// carefully read Datomic query doc to check for correct handling
match pattern.tx {
PatternNonValuePlace::Placeholder => (),
PatternNonValuePlace::Variable(ref v) => {
self.bind_column_to_var(schema, col.clone(), DatomsColumn::Tx, v.clone());
},
PatternNonValuePlace::Entid(entid) => {
// TODO: we want to check whether the tx-id is within range for the database's tx partition.
// (That applies after ident lookup, too.)
// Possible solution: https://github.com/mozilla/mentat/tree/fluffyemily/tx-id-check
self.constrain_column_to_entity(col.clone(), DatomsColumn::Tx, entid);
},
PatternNonValuePlace::Ident(ref ident) => {

23
tests/query.rs
View file

@ -263,10 +263,16 @@ fn test_tx() {
[:db/add "s" :db/ident :foo/uuid]
[:db/add "s" :db/valueType :db.type/uuid]
[:db/add "s" :db/cardinality :db.cardinality/one]
]"#).unwrap();
]"#).expect("successful transaction");
let t = conn.transact(&mut c, r#"[
[:db/add "u" :foo/uuid #uuid "cf62d552-6569-4d1b-b667-04703041dfc4"]
]"#).unwrap();
]"#).expect("successful transaction");
conn.transact(&mut c, r#"[
[:db/add "u" :foo/uuid #uuid "550e8400-e29b-41d4-a716-446655440000"]
]"#).expect("successful transaction");
let r = conn.q_once(&mut c,
r#"[:find ?tx
:where [?x :foo/uuid #uuid "cf62d552-6569-4d1b-b667-04703041dfc4" ?tx]]"#, None);
@ -288,10 +294,17 @@ fn test_tx_as_input() {
[:db/add "s" :db/ident :foo/uuid]
[:db/add "s" :db/valueType :db.type/uuid]
[:db/add "s" :db/cardinality :db.cardinality/one]
]"#).unwrap();
]"#).expect("successful transaction");
conn.transact(&mut c, r#"[
[:db/add "u" :foo/uuid #uuid "550e8400-e29b-41d4-a716-446655440000"]
]"#).expect("successful transaction");
let t = conn.transact(&mut c, r#"[
[:db/add "u" :foo/uuid #uuid "cf62d552-6569-4d1b-b667-04703041dfc4"]
]"#).unwrap();
]"#).expect("successful transaction");
conn.transact(&mut c, r#"[
[:db/add "u" :foo/uuid #uuid "267bab92-ee39-4ca2-b7f0-1163a85af1fb"]
]"#).expect("successful transaction");
let tx = (Variable::from_valid_name("?tx"), TypedValue::Ref(t.tx_id));
let inputs = QueryInputs::with_value_sequence(vec![tx]);
let r = conn.q_once(&mut c,
@ -301,7 +314,7 @@ fn test_tx_as_input() {
match r {
Result::Ok(QueryResults::Rel(ref v)) => {
assert_eq!(*v, vec![
vec![TypedValue::Uuid(Uuid::from_str("cf62d552-6569-4d1b-b667-04703041dfc4").unwrap()),]
vec![TypedValue::Uuid(Uuid::from_str("cf62d552-6569-4d1b-b667-04703041dfc4").expect("Valid UUID")),]
]);
},
_ => panic!("Expected query to work."),