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//! For calling built-in Postgres SQL functions.
use crate::{expr::*, func::Function};
/// Functions
#[derive(Debug, Clone)]
pub enum PgFunction {
ToTsquery,
ToTsvector,
PhrasetoTsquery,
PlaintoTsquery,
WebsearchToTsquery,
TsRank,
TsRankCd,
#[cfg(feature = "postgres-array")]
Any,
#[cfg(feature = "postgres-array")]
Some,
#[cfg(feature = "postgres-array")]
All,
}
/// Function call helper.
#[derive(Debug, Clone)]
pub struct PgFunc;
impl PgFunc {
/// 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(Expr::val("a & b"), None))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT TO_TSQUERY('a & b')"#
/// );
/// ```
pub fn to_tsquery<T>(expr: T, regconfig: Option<u32>) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
match regconfig {
Some(config) => {
let config = SimpleExpr::Value(config.into());
Expr::func(Function::PgFunction(PgFunction::ToTsquery))
.args(vec![config, expr.into()])
}
None => Expr::func(Function::PgFunction(PgFunction::ToTsquery)).arg(expr),
}
}
/// 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(Expr::val("a b"), None))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT TO_TSVECTOR('a b')"#
/// );
/// ```
pub fn to_tsvector<T>(expr: T, regconfig: Option<u32>) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
match regconfig {
Some(config) => {
let config = SimpleExpr::Value(config.into());
Expr::func(Function::PgFunction(PgFunction::ToTsvector))
.args(vec![config, expr.into()])
}
None => Expr::func(Function::PgFunction(PgFunction::ToTsvector)).arg(expr),
}
}
/// 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(Expr::val("a b"), None))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT PHRASETO_TSQUERY('a b')"#
/// );
/// ```
pub fn phraseto_tsquery<T>(expr: T, regconfig: Option<u32>) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
match regconfig {
Some(config) => {
let config = SimpleExpr::Value(config.into());
Expr::func(Function::PgFunction(PgFunction::PhrasetoTsquery))
.args(vec![config, expr.into()])
}
None => Expr::func(Function::PgFunction(PgFunction::PhrasetoTsquery)).arg(expr),
}
}
/// 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(Expr::val("a b"), None))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT PLAINTO_TSQUERY('a b')"#
/// );
/// ```
pub fn plainto_tsquery<T>(expr: T, regconfig: Option<u32>) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
match regconfig {
Some(config) => {
let config = SimpleExpr::Value(config.into());
Expr::func(Function::PgFunction(PgFunction::PlaintoTsquery))
.args(vec![config, expr.into()])
}
None => Expr::func(Function::PgFunction(PgFunction::PlaintoTsquery)).arg(expr),
}
}
/// 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(Expr::val("a b"), None))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT WEBSEARCH_TO_TSQUERY('a b')"#
/// );
/// ```
pub fn websearch_to_tsquery<T>(expr: T, regconfig: Option<u32>) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
match regconfig {
Some(config) => {
let config = SimpleExpr::Value(config.into());
Expr::func(Function::PgFunction(PgFunction::WebsearchToTsquery))
.args(vec![config, expr.into()])
}
None => Expr::func(Function::PgFunction(PgFunction::WebsearchToTsquery)).arg(expr),
}
}
/// Call `TS_RANK` function. Postgres only.
///
/// # Examples
///
/// ```
/// use sea_query::{tests_cfg::*, *};
///
/// let query = Query::select()
/// .expr(PgFunc::ts_rank(Expr::val("a b"), Expr::val("a&b")))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT TS_RANK('a b', 'a&b')"#
/// );
/// ```
pub fn ts_rank<T>(vector: T, query: T) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
Expr::func(Function::PgFunction(PgFunction::TsRank)).args(vec![vector, query])
}
/// Call `TS_RANK_CD` function. Postgres only.
///
/// # Examples
///
/// ```
/// use sea_query::{tests_cfg::*, *};
///
/// let query = Query::select()
/// .expr(PgFunc::ts_rank_cd(Expr::val("a b"), Expr::val("a&b")))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT TS_RANK_CD('a b', 'a&b')"#
/// );
/// ```
pub fn ts_rank_cd<T>(vector: T, query: T) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
Expr::func(Function::PgFunction(PgFunction::TsRankCd)).args(vec![vector, query])
}
/// Call `ANY` function. Postgres only.
///
/// # Examples
///
/// ```
/// use sea_query::{tests_cfg::*, *};
///
/// let query = Query::select()
/// .expr(PgFunc::any(Expr::val(vec![0, 1])))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT ANY('{0,1}')"#
/// );
/// ```
#[cfg(feature = "postgres-array")]
pub fn any<T>(expr: T) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
Expr::func(Function::PgFunction(PgFunction::Any)).arg(expr)
}
/// Call `SOME` function. Postgres only.
///
/// # Examples
///
/// ```
/// use sea_query::{tests_cfg::*, *};
///
/// let query = Query::select()
/// .expr(PgFunc::some(Expr::val(vec![0, 1])))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT SOME('{0,1}')"#
/// );
/// ```
#[cfg(feature = "postgres-array")]
pub fn some<T>(expr: T) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
Expr::func(Function::PgFunction(PgFunction::Some)).arg(expr)
}
/// Call `ALL` function. Postgres only.
///
/// # Examples
///
/// ```
/// use sea_query::{tests_cfg::*, *};
///
/// let query = Query::select()
/// .expr(PgFunc::all(Expr::val(vec![0, 1])))
/// .to_owned();
///
/// assert_eq!(
/// query.to_string(PostgresQueryBuilder),
/// r#"SELECT ALL('{0,1}')"#
/// );
/// ```
#[cfg(feature = "postgres-array")]
pub fn all<T>(expr: T) -> SimpleExpr
where
T: Into<SimpleExpr>,
{
Expr::func(Function::PgFunction(PgFunction::All)).arg(expr)
}
}