Struct Predicate 

pub struct Predicate {
    pub col: String,
    pub op: String,
    pub val: Option<Value>,
}

A single filter predicate.

op is one of eq | neq | gt | gte | lt | lte | like | ilike | in | is_null | is_not_null. val is omitted for the null checks and is an array for in.

Fields

col: String

op: String

val: Option<Value>

Implementations

impl Predicate

pub fn new( col: impl Into<String>, op: impl Into<String>, val: impl Into<JsonValue>, ) -> Self

Binary/like predicate: col op val.

pub fn unary(col: impl Into<String>, op: impl Into<String>) -> Self

A value-less predicate (is_null / is_not_null).

Trait Implementations

impl Clone for Predicate

fn clone(&self) -> Predicate

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Predicate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Predicate

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Predicate

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.