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Code Issues Releases Wiki Activity

Implements the EXIST filter operator

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This commit is contained in:
Loïc Lecrenier 2022-05-25 11:55:16 +02:00
parent a8641b42a7
commit 72452f0cb2
4 changed files with 55 additions and 8 deletions
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27
filter-parser/src/lib.rs
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@ -6,8 +6,9 @@
//! or = and (~ "OR" ~ and)
//! and = not (~ "AND" not)*
//! not = ("NOT" ~ not) | primary
//! primary = (WS* ~ "(" expression ")" ~ WS*) | geoRadius | condition | to
//! primary = (WS* ~ "(" expression ")" ~ WS*) | geoRadius | condition | exist | to
//! condition = value ("==" | ">" ...) value
//! exist = value EXIST
//! to = value value TO value
//! value = WS* ~ ( word | singleQuoted | doubleQuoted) ~ WS*
//! singleQuoted = "'" .* all but quotes "'"
@ -42,6 +43,7 @@ mod value;
use std::fmt::Debug;
use std::str::FromStr;
use condition::parse_exist;
pub use condition::{parse_condition, parse_to, Condition};
use error::{cut_with_err, NomErrorExt};
pub use error::{Error, ErrorKind};
@ -248,6 +250,7 @@ fn parse_primary(input: Span) -> IResult<FilterCondition> {
),
parse_geo_radius,
parse_condition,
parse_exist,
parse_to,
// the next lines are only for error handling and are written at the end to have the less possible performance impact
parse_geo_point,
@ -420,6 +423,20 @@ pub mod tests {
op: Condition::LowerThan(rtok("NOT subscribers >= ", "1000")),
},
),
(
"subscribers EXIST",
Fc::Condition {
fid: rtok("", "subscribers"),
op: Condition::Exist,
},
),
(
"NOT subscribers EXIST",
Fc::Condition {
fid: rtok("NOT ", "subscribers"),
op: Condition::NotExist,
},
),
(
"subscribers 100 TO 1000",
Fc::Condition {
@ -577,10 +594,10 @@ pub mod tests {
("channel = ", "Was expecting a value but instead got nothing."),
("channel = 🐻", "Was expecting a value but instead got `🐻`."),
("channel = 🐻 AND followers < 100", "Was expecting a value but instead got `🐻`."),
("OR", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO` or `_geoRadius` at `OR`."),
("AND", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO` or `_geoRadius` at `AND`."),
("channel Ponce", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO` or `_geoRadius` at `channel Ponce`."),
("channel = Ponce OR", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO` or `_geoRadius` but instead got nothing."),
("OR", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO`, `EXIST`, or `_geoRadius` at `OR`."),
("AND", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO`, `EXIST`, or `_geoRadius` at `AND`."),
("channel Ponce", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO`, `EXIST`, or `_geoRadius` at `channel Ponce`."),
("channel = Ponce OR", "Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `TO`, `EXIST`, or `_geoRadius` but instead got nothing."),
("_geoRadius", "The `_geoRadius` filter expects three arguments: `_geoRadius(latitude, longitude, radius)`."),
("_geoRadius = 12", "The `_geoRadius` filter expects three arguments: `_geoRadius(latitude, longitude, radius)`."),
("_geoPoint(12, 13, 14)", "`_geoPoint` is a reserved keyword and thus can't be used as a filter expression. Use the `_geoRadius(latitude, longitude, distance) built-in rule to filter on `_geo` coordinates."),