Trait diesel::prelude::PgTextExpressionMethods

source · 
pub trait PgTextExpressionMethods: Expression + Sized {
    fn ilike<T>(self, other: T) -> ILike<Self, T>
    where
        T: AsExpression<Text>,
    { ... }
    fn not_ilike<T>(self, other: T) -> NotILike<Self, T>
    where
        T: AsExpression<Text>,
    { ... }
    fn similar_to<T>(self, other: T) -> SimilarTo<Self, T>
    where
        T: AsExpression<Text>,
    { ... }
    fn not_similar_to<T>(self, other: T) -> NotSimilarTo<Self, T>
    where
        T: AsExpression<Text>,
    { ... }
}
Available on crate feature postgres_backend only.
Expand description

PostgreSQL specific methods present on text expressions.

Provided Methods§

Creates a PostgreSQL ILIKE expression

Example
let starts_with_s = animals
    .select(species)
    .filter(name.ilike("s%").or(species.ilike("s%")))
    .get_results::<String>(connection)?;
assert_eq!(vec!["spider"], starts_with_s);

Creates a PostgreSQL NOT ILIKE expression

Example
let doesnt_start_with_s = animals
    .select(species)
    .filter(name.not_ilike("s%").and(species.not_ilike("s%")))
    .get_results::<String>(connection)?;
assert_eq!(vec!["dog"], doesnt_start_with_s);

Creates a PostgreSQL SIMILAR TO expression

Example
let starts_with_s = animals
    .select(species)
    .filter(name.similar_to("s%").or(species.similar_to("s%")))
    .get_results::<String>(connection)?;
assert_eq!(vec!["spider"], starts_with_s);

Creates a PostgreSQL NOT SIMILAR TO expression

Example
let doesnt_start_with_s = animals
    .select(species)
    .filter(name.not_similar_to("s%").and(species.not_similar_to("s%")))
    .get_results::<String>(connection)?;
assert_eq!(vec!["dog"], doesnt_start_with_s);

Implementors§