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Code Issues Releases Wiki Activity

Prefer returning None instead of the Empty Filter state

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This commit is contained in:
Clément Renault 2021-12-09 11:13:12 +01:00
parent 80dcfd5c3e
commit ef59762d8e
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GPG Key ID: 92ADA4E935E71FA4
4 changed files with 47 additions and 43 deletions
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12
filter-parser/src/lib.rs
View File

@ -109,7 +109,6 @@ pub enum FilterCondition<'a> {
And(Box<Self>, Box<Self>),
GeoLowerThan { point: [Token<'a>; 2], radius: Token<'a> },
GeoGreaterThan { point: [Token<'a>; 2], radius: Token<'a> },
Empty,
}
impl<'a> FilterCondition<'a> {
@ -144,18 +143,17 @@ impl<'a> FilterCondition<'a> {
},
Or(a, b) => And(a.negate().into(), b.negate().into()),
And(a, b) => Or(a.negate().into(), b.negate().into()),
Empty => Empty,
GeoLowerThan { point, radius } => GeoGreaterThan { point, radius },
GeoGreaterThan { point, radius } => GeoLowerThan { point, radius },
}
}
pub fn parse(input: &'a str) -> Result<Self, Error> {
pub fn parse(input: &'a str) -> Result<Option<Self>, Error> {
if input.trim().is_empty() {
return Ok(Self::Empty);
return Ok(None);
}
let span = Span::new_extra(input, input);
parse_filter(span).finish().map(|(_rem, output)| output)
parse_filter(span).finish().map(|(_rem, output)| Some(output))
}
}
@ -560,7 +558,7 @@ pub mod tests {
result.unwrap_err()
);
let filter = result.unwrap();
assert_eq!(filter, expected, "Filter `{}` failed.", input);
assert_eq!(filter, Some(expected), "Filter `{}` failed.", input);
}
}
@ -605,7 +603,7 @@ pub mod tests {
#[test]
fn depth() {
let filter = FilterCondition::parse("account_ids=1 OR account_ids=2 OR account_ids=3 OR account_ids=4 OR account_ids=5 OR account_ids=6").unwrap();
let filter = FilterCondition::parse("account_ids=1 OR account_ids=2 OR account_ids=3 OR account_ids=4 OR account_ids=5 OR account_ids=6").unwrap().unwrap();
assert!(filter.token_at_depth(5).is_some());
}
}

50
milli/src/search/facet/filter.rs
View File

@ -86,7 +86,8 @@ impl<'a> Filter<'a> {
Either::Left(array) => {
let mut ors = None;
for rule in array {
let condition = Self::from_str(rule.as_ref())?.condition;
if let Some(filter) = Self::from_str(rule.as_ref())? {
let condition = filter.condition;
ors = match ors.take() {
Some(ors) => {
Some(FilterCondition::Or(Box::new(ors), Box::new(condition)))
@ -94,6 +95,7 @@ impl<'a> Filter<'a> {
None => Some(condition),
};
}
}
if let Some(rule) = ors {
ands = match ands.take() {
@ -105,7 +107,8 @@ impl<'a> Filter<'a> {
}
}
Either::Right(rule) => {
let condition = Self::from_str(rule.as_ref())?.condition;
if let Some(filter) = Self::from_str(rule.as_ref())? {
let condition = filter.condition;
ands = match ands.take() {
Some(ands) => {
Some(FilterCondition::And(Box::new(ands), Box::new(condition)))
@ -115,6 +118,7 @@ impl<'a> Filter<'a> {
}
}
}
}
if let Some(token) = ands.as_ref().and_then(|fc| fc.token_at_depth(MAX_FILTER_DEPTH)) {
return Err(token.as_external_error(FilterError::TooDeep).into());
@ -123,9 +127,10 @@ impl<'a> Filter<'a> {
Ok(ands.map(|ands| Self { condition: ands }))
}
pub fn from_str(expression: &'a str) -> Result<Self> {
pub fn from_str(expression: &'a str) -> Result<Option<Self>> {
let condition = match FilterCondition::parse(expression) {
Ok(fc) => Ok(fc),
Ok(Some(fc)) => Ok(fc),
Ok(None) => return Ok(None),
Err(e) => Err(Error::UserError(UserError::InvalidFilter(e.to_string()))),
}?;
@ -133,7 +138,7 @@ impl<'a> Filter<'a> {
return Err(token.as_external_error(FilterError::TooDeep).into());
}
Ok(Self { condition })
Ok(Some(Self { condition }))
}
}
@ -377,7 +382,6 @@ impl<'a> Filter<'a> {
let rhs = Self::evaluate(&(rhs.as_ref().clone()).into(), rtxn, index)?;
Ok(lhs & rhs)
}
FilterCondition::Empty => Ok(RoaringBitmap::new()),
FilterCondition::GeoLowerThan { point, radius } => {
let filterable_fields = index.filterable_fields(rtxn)?;
if filterable_fields.contains("_geo") {
@ -451,20 +455,20 @@ mod tests {
fn from_array() {
// Simple array with Left
let condition = Filter::from_array(vec![Either::Left(["channel = mv"])]).unwrap().unwrap();
let expected = Filter::from_str("channel = mv").unwrap();
let expected = Filter::from_str("channel = mv").unwrap().unwrap();
assert_eq!(condition, expected);
// Simple array with Right
let condition = Filter::from_array::<_, Option<&str>>(vec![Either::Right("channel = mv")])
.unwrap()
.unwrap();
let expected = Filter::from_str("channel = mv").unwrap();
let expected = Filter::from_str("channel = mv").unwrap().unwrap();
assert_eq!(condition, expected);
// Array with Left and escaped quote
let condition =
Filter::from_array(vec![Either::Left(["channel = \"Mister Mv\""])]).unwrap().unwrap();
let expected = Filter::from_str("channel = \"Mister Mv\"").unwrap();
let expected = Filter::from_str("channel = \"Mister Mv\"").unwrap().unwrap();
assert_eq!(condition, expected);
// Array with Right and escaped quote
@ -472,13 +476,13 @@ mod tests {
Filter::from_array::<_, Option<&str>>(vec![Either::Right("channel = \"Mister Mv\"")])
.unwrap()
.unwrap();
let expected = Filter::from_str("channel = \"Mister Mv\"").unwrap();
let expected = Filter::from_str("channel = \"Mister Mv\"").unwrap().unwrap();
assert_eq!(condition, expected);
// Array with Left and escaped simple quote
let condition =
Filter::from_array(vec![Either::Left(["channel = 'Mister Mv'"])]).unwrap().unwrap();
let expected = Filter::from_str("channel = 'Mister Mv'").unwrap();
let expected = Filter::from_str("channel = 'Mister Mv'").unwrap().unwrap();
assert_eq!(condition, expected);
// Array with Right and escaped simple quote
@ -486,13 +490,13 @@ mod tests {
Filter::from_array::<_, Option<&str>>(vec![Either::Right("channel = 'Mister Mv'")])
.unwrap()
.unwrap();
let expected = Filter::from_str("channel = 'Mister Mv'").unwrap();
let expected = Filter::from_str("channel = 'Mister Mv'").unwrap().unwrap();
assert_eq!(condition, expected);
// Simple with parenthesis
let condition =
Filter::from_array(vec![Either::Left(["(channel = mv)"])]).unwrap().unwrap();
let expected = Filter::from_str("(channel = mv)").unwrap();
let expected = Filter::from_str("(channel = mv)").unwrap().unwrap();
assert_eq!(condition, expected);
// Test that the facet condition is correctly generated.
@ -503,7 +507,9 @@ mod tests {
.unwrap()
.unwrap();
let expected =
Filter::from_str("channel = gotaga AND (timestamp = 44 OR channel != ponce)").unwrap();
Filter::from_str("channel = gotaga AND (timestamp = 44 OR channel != ponce)")
.unwrap()
.unwrap();
println!("\nExpecting: {:#?}\nGot: {:#?}\n", expected, condition);
assert_eq!(condition, expected);
}
@ -516,13 +522,13 @@ mod tests {
let index = Index::new(options, &path).unwrap();
let rtxn = index.read_txn().unwrap();
let filter = Filter::from_str("_geoRadius(42, 150, 10)").unwrap();
let filter = Filter::from_str("_geoRadius(42, 150, 10)").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(error.to_string().starts_with(
"Attribute `_geo` is not filterable. Available filterable attributes are: ``."
));
let filter = Filter::from_str("dog = \"bernese mountain\"").unwrap();
let filter = Filter::from_str("dog = \"bernese mountain\"").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(error.to_string().starts_with(
"Attribute `dog` is not filterable. Available filterable attributes are: ``."
@ -539,13 +545,13 @@ mod tests {
let rtxn = index.read_txn().unwrap();
let filter = Filter::from_str("_geoRadius(-100, 150, 10)").unwrap();
let filter = Filter::from_str("_geoRadius(-100, 150, 10)").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(error.to_string().starts_with(
"Attribute `_geo` is not filterable. Available filterable attributes are: `title`."
));
let filter = Filter::from_str("name = 12").unwrap();
let filter = Filter::from_str("name = 12").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(error.to_string().starts_with(
"Attribute `name` is not filterable. Available filterable attributes are: `title`."
@ -570,7 +576,7 @@ mod tests {
let rtxn = index.read_txn().unwrap();
// georadius have a bad latitude
let filter = Filter::from_str("_geoRadius(-100, 150, 10)").unwrap();
let filter = Filter::from_str("_geoRadius(-100, 150, 10)").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(
error.to_string().starts_with(
@ -581,14 +587,14 @@ mod tests {
);
// georadius have a bad latitude
let filter = Filter::from_str("_geoRadius(-90.0000001, 150, 10)").unwrap();
let filter = Filter::from_str("_geoRadius(-90.0000001, 150, 10)").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(error.to_string().contains(
"Bad latitude `-90.0000001`. Latitude must be contained between -90 and 90 degrees."
));
// georadius have a bad longitude
let filter = Filter::from_str("_geoRadius(-10, 250, 10)").unwrap();
let filter = Filter::from_str("_geoRadius(-10, 250, 10)").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(
error.to_string().contains(
@ -599,7 +605,7 @@ mod tests {
);
// georadius have a bad longitude
let filter = Filter::from_str("_geoRadius(-10, 180.000001, 10)").unwrap();
let filter = Filter::from_str("_geoRadius(-10, 180.000001, 10)").unwrap().unwrap();
let error = filter.evaluate(&rtxn, &index).unwrap_err();
assert!(error.to_string().contains(
"Bad longitude `180.000001`. Longitude must be contained between -180 and 180 degrees."

2
milli/src/update/delete_documents.rs
View File

@ -681,7 +681,7 @@ mod tests {
builder.delete_external_id("1_4");
builder.execute().unwrap();
let filter = Filter::from_str("label = sign").unwrap();
let filter = Filter::from_str("label = sign").unwrap().unwrap();
let results = index.search(&wtxn).filter(filter).execute().unwrap();
assert!(results.documents_ids.is_empty());

2
milli/src/update/settings.rs
View File

@ -1060,7 +1060,7 @@ mod tests {
wtxn.commit().unwrap();
let rtxn = index.read_txn().unwrap();
let filter = Filter::from_str("toto = 32").unwrap();
let filter = Filter::from_str("toto = 32").unwrap().unwrap();
let _ = filter.evaluate(&rtxn, &index).unwrap_err();
}