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use super::SchemaQueryBuilder;
use crate::sqlx_types::postgres::PgRow;
use sea_query::{Expr, Order, Query, SelectStatement};
#[derive(Debug, sea_query::Iden)]
pub enum PgType {
#[iden = "pg_type"]
Table,
#[iden = "typname"]
TypeName,
#[iden = "oid"]
Oid,
}
#[derive(Debug, sea_query::Iden)]
pub enum PgEnum {
#[iden = "pg_enum"]
Table,
#[iden = "enumlabel"]
EnumLabel,
#[iden = "enumtypid"]
EnumTypeId,
}
#[derive(Debug, Default)]
pub struct EnumQueryResult {
pub typename: String,
pub enumlabel: String,
}
impl SchemaQueryBuilder {
pub fn query_enums(&self) -> SelectStatement {
Query::select()
.column((PgType::Table, PgType::TypeName))
.column((PgEnum::Table, PgEnum::EnumLabel))
.from(PgType::Table)
.inner_join(
PgEnum::Table,
Expr::tbl(PgEnum::Table, PgEnum::EnumTypeId).equals(PgType::Table, PgType::Oid),
)
.order_by((PgType::Table, PgType::TypeName), Order::Asc)
.order_by((PgEnum::Table, PgEnum::EnumLabel), Order::Asc)
.take()
}
}
#[cfg(feature = "sqlx-postgres")]
impl From<&PgRow> for EnumQueryResult {
fn from(row: &PgRow) -> Self {
use crate::sqlx_types::Row;
Self {
typename: row.get(0),
enumlabel: row.get(1),
}
}
}
#[cfg(not(feature = "sqlx-postgres"))]
impl From<&PgRow> for EnumQueryResult {
fn from(row: &PgRow) -> Self {
Self::default()
}
}