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Improve syntax of EXISTS filter, allow “value NOT EXISTS”

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This commit is contained in:
Loïc Lecrenier
2022-06-14 16:42:09 +02:00
parent 72452f0cb2
commit dc64170a69
4 changed files with 46 additions and 31 deletions
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22
filter-parser/src/condition.rs
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@ -19,8 +19,8 @@ pub enum Condition<'a> {
GreaterThanOrEqual(Token<'a>),
Equal(Token<'a>),
NotEqual(Token<'a>),
Exist,
NotExist,
Exists,
NotExists,
LowerThan(Token<'a>),
LowerThanOrEqual(Token<'a>),
Between { from: Token<'a>, to: Token<'a> },
@ -35,8 +35,8 @@ impl<'a> Condition<'a> {
GreaterThanOrEqual(n) => (LowerThan(n), None),
Equal(s) => (NotEqual(s), None),
NotEqual(s) => (Equal(s), None),
Exist => (NotExist, None),
NotExist => (Exist, None),
Exists => (NotExists, None),
NotExists => (Exists, None),
LowerThan(n) => (GreaterThanOrEqual(n), None),
LowerThanOrEqual(n) => (GreaterThan(n), None),
Between { from, to } => (LowerThan(from), Some(GreaterThan(to))),
@ -62,11 +62,17 @@ pub fn parse_condition(input: Span) -> IResult<FilterCondition> {
Ok((input, condition))
}
/// exist = value EXIST
pub fn parse_exist(input: Span) -> IResult<FilterCondition> {
let (input, key) = terminated(parse_value, tag("EXIST"))(input)?;
/// exist = value NOT EXISTS
pub fn parse_exists(input: Span) -> IResult<FilterCondition> {
let (input, key) = terminated(parse_value, tag("EXISTS"))(input)?;
Ok((input, FilterCondition::Condition { fid: key.into(), op: Exist }))
Ok((input, FilterCondition::Condition { fid: key.into(), op: Exists }))
}
/// exist = value NOT EXISTS
pub fn parse_not_exists(input: Span) -> IResult<FilterCondition> {
let (input, key) = terminated(parse_value, tag("NOT EXISTS"))(input)?;
Ok((input, FilterCondition::Condition { fid: key.into(), op: NotExists }))
}
/// to = value value TO value