pub struct PgFunc;
Available on crate feature backend-postgres only.
Expand description

Function call helper.

Implementations§

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impl PgFunc

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pub fn to_tsquery<T>(expr: T, regconfig: Option<u32>) -> FunctionCall
where T: Into<SimpleExpr>,

Call TO_TSQUERY function. Postgres only.

The parameter regconfig represents the OID of the text search configuration. If the value is None the argument is omitted from the query, and hence the database default used.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::to_tsquery("a & b", None))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT TO_TSQUERY('a & b')"#
);
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pub fn to_tsvector<T>(expr: T, regconfig: Option<u32>) -> FunctionCall
where T: Into<SimpleExpr>,

Call TO_TSVECTOR function. Postgres only.

The parameter regconfig represents the OID of the text search configuration. If the value is None the argument is omitted from the query, and hence the database default used.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::to_tsvector("a b", None))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT TO_TSVECTOR('a b')"#
);
source

pub fn phraseto_tsquery<T>(expr: T, regconfig: Option<u32>) -> FunctionCall
where T: Into<SimpleExpr>,

Call PHRASE_TO_TSQUERY function. Postgres only.

The parameter regconfig represents the OID of the text search configuration. If the value is None the argument is omitted from the query, and hence the database default used.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::phraseto_tsquery("a b", None))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT PHRASETO_TSQUERY('a b')"#
);
source

pub fn plainto_tsquery<T>(expr: T, regconfig: Option<u32>) -> FunctionCall
where T: Into<SimpleExpr>,

Call PLAIN_TO_TSQUERY function. Postgres only.

The parameter regconfig represents the OID of the text search configuration. If the value is None the argument is omitted from the query, and hence the database default used.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::plainto_tsquery("a b", None))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT PLAINTO_TSQUERY('a b')"#
);
source

pub fn websearch_to_tsquery<T>(expr: T, regconfig: Option<u32>) -> FunctionCall
where T: Into<SimpleExpr>,

Call WEBSEARCH_TO_TSQUERY function. Postgres only.

The parameter regconfig represents the OID of the text search configuration. If the value is None the argument is omitted from the query, and hence the database default used.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::websearch_to_tsquery("a b", None))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT WEBSEARCH_TO_TSQUERY('a b')"#
);
source

pub fn ts_rank<T>(vector: T, query: T) -> FunctionCall
where T: Into<SimpleExpr>,

Call TS_RANK function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::ts_rank("a b", "a&b"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT TS_RANK('a b', 'a&b')"#
);
source

pub fn ts_rank_cd<T>(vector: T, query: T) -> FunctionCall
where T: Into<SimpleExpr>,

Call TS_RANK_CD function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::ts_rank_cd("a b", "a&b"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT TS_RANK_CD('a b', 'a&b')"#
);
source

pub fn any<T>(expr: T) -> FunctionCall
where T: Into<SimpleExpr>,

Call ANY function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select().expr(PgFunc::any(vec![0, 1])).to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT ANY(ARRAY [0,1])"#
);
source

pub fn some<T>(expr: T) -> FunctionCall
where T: Into<SimpleExpr>,

Call SOME function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select().expr(PgFunc::some(vec![0, 1])).to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT SOME(ARRAY [0,1])"#
);
source

pub fn all<T>(expr: T) -> FunctionCall
where T: Into<SimpleExpr>,

Call ALL function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select().expr(PgFunc::all(vec![0, 1])).to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT ALL(ARRAY [0,1])"#
);
source

pub fn starts_with<T, P>(text: T, prefix: P) -> FunctionCall
where T: Into<SimpleExpr>, P: Into<SimpleExpr>,

Call STARTS_WITH function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select()
    .expr(PgFunc::starts_with("123", "1"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT STARTS_WITH('123', '1')"#
);
source

pub fn gen_random_uuid() -> FunctionCall

Call GEN_RANDOM_UUID function. Postgres only.

Examples
use sea_query::{tests_cfg::*, *};

let query = Query::select().expr(PgFunc::gen_random_uuid()).to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT GEN_RANDOM_UUID()"#
);

Trait Implementations§

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impl Clone for PgFunc

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fn clone(&self) -> PgFunc

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for PgFunc

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.