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json.rs
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json.rs
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use crate::{error::*, FromQueryResult, QueryResult};
use serde_json::Map;
pub use serde_json::Value as JsonValue;
impl FromQueryResult for JsonValue {
#[allow(unused_variables, unused_mut)]
fn from_query_result(res: &QueryResult, pre: &str) -> Result<Self, DbErr> {
let mut map = Map::new();
#[allow(unused_macros)]
macro_rules! try_get_type {
( $type: ty, $col: ident ) => {
if let Ok(v) = res.try_get::<Option<$type>>(pre, &$col) {
map.insert($col.to_owned(), json!(v));
continue;
}
};
}
match &res.row {
#[cfg(feature = "sqlx-mysql")]
crate::QueryResultRow::SqlxMySql(row) => {
use serde_json::json;
use sqlx::{Column, MySql, Row, Type};
for column in row.columns() {
let col = if !column.name().starts_with(pre) {
continue;
} else {
column.name().replacen(pre, "", 1)
};
let col_type = column.type_info();
macro_rules! match_mysql_type {
( $type: ty ) => {
if <$type as Type<MySql>>::type_info().eq(col_type) {
try_get_type!($type, col)
}
};
}
macro_rules! match_mysql_compatible_type {
( $type: ty ) => {
if <$type as Type<MySql>>::compatible(col_type) {
try_get_type!($type, col)
}
};
}
match_mysql_type!(bool);
match_mysql_type!(i8);
match_mysql_type!(i16);
match_mysql_type!(i32);
match_mysql_type!(i64);
match_mysql_type!(u8);
match_mysql_type!(u16);
match_mysql_type!(u32);
match_mysql_type!(u64);
match_mysql_type!(f32);
match_mysql_type!(f64);
match_mysql_type!(String);
#[cfg(feature = "with-chrono")]
match_mysql_type!(chrono::NaiveDate);
#[cfg(feature = "with-chrono")]
match_mysql_type!(chrono::NaiveTime);
#[cfg(feature = "with-chrono")]
match_mysql_type!(chrono::NaiveDateTime);
#[cfg(feature = "with-chrono")]
match_mysql_type!(chrono::DateTime<chrono::Utc>);
#[cfg(feature = "with-time")]
match_mysql_type!(time::Date);
#[cfg(feature = "with-time")]
match_mysql_type!(time::Time);
#[cfg(feature = "with-time")]
match_mysql_type!(time::PrimitiveDateTime);
#[cfg(feature = "with-time")]
match_mysql_type!(time::OffsetDateTime);
#[cfg(feature = "with-rust_decimal")]
match_mysql_type!(rust_decimal::Decimal);
match_mysql_compatible_type!(String);
#[cfg(feature = "with-json")]
try_get_type!(serde_json::Value, col);
#[cfg(feature = "with-uuid")]
try_get_type!(uuid::Uuid, col);
try_get_type!(Vec<u8>, col);
}
Ok(JsonValue::Object(map))
}
#[cfg(feature = "sqlx-postgres")]
crate::QueryResultRow::SqlxPostgres(row) => {
use serde_json::json;
use sqlx::{postgres::types::Oid, Column, Postgres, Row, Type};
for column in row.columns() {
let col = if !column.name().starts_with(pre) {
continue;
} else {
column.name().replacen(pre, "", 1)
};
let col_type = column.type_info();
macro_rules! match_postgres_type {
( $type: ty ) => {
match col_type.kind() {
#[cfg(feature = "postgres-array")]
sqlx::postgres::PgTypeKind::Array(_) => {
if <Vec<$type> as Type<Postgres>>::type_info().eq(col_type) {
try_get_type!(Vec<$type>, col);
}
}
_ => {
if <$type as Type<Postgres>>::type_info().eq(col_type) {
try_get_type!($type, col);
}
}
}
};
}
match_postgres_type!(bool);
match_postgres_type!(i8);
match_postgres_type!(i16);
match_postgres_type!(i32);
match_postgres_type!(i64);
// match_postgres_type!(u8); // unsupported by SQLx Postgres
// match_postgres_type!(u16); // unsupported by SQLx Postgres
// Since 0.6.0, SQLx has dropped direct mapping from PostgreSQL's OID to Rust's `u32`;
// Instead, `u32` was wrapped by a `sqlx::Oid`.
if <Oid as Type<Postgres>>::type_info().eq(col_type) {
try_get_type!(u32, col)
}
// match_postgres_type!(u64); // unsupported by SQLx Postgres
match_postgres_type!(f32);
match_postgres_type!(f64);
#[cfg(feature = "with-chrono")]
match_postgres_type!(chrono::NaiveDate);
#[cfg(feature = "with-chrono")]
match_postgres_type!(chrono::NaiveTime);
#[cfg(feature = "with-chrono")]
match_postgres_type!(chrono::NaiveDateTime);
#[cfg(feature = "with-chrono")]
match_postgres_type!(chrono::DateTime<chrono::FixedOffset>);
#[cfg(feature = "with-time")]
match_postgres_type!(time::Date);
#[cfg(feature = "with-time")]
match_postgres_type!(time::Time);
#[cfg(feature = "with-time")]
match_postgres_type!(time::PrimitiveDateTime);
#[cfg(feature = "with-time")]
match_postgres_type!(time::OffsetDateTime);
#[cfg(feature = "with-rust_decimal")]
match_postgres_type!(rust_decimal::Decimal);
#[cfg(feature = "with-json")]
try_get_type!(serde_json::Value, col);
#[cfg(all(feature = "with-json", feature = "postgres-array"))]
try_get_type!(Vec<serde_json::Value>, col);
try_get_type!(String, col);
#[cfg(feature = "postgres-array")]
try_get_type!(Vec<String>, col);
#[cfg(feature = "with-uuid")]
try_get_type!(uuid::Uuid, col);
#[cfg(all(feature = "with-uuid", feature = "postgres-array"))]
try_get_type!(Vec<uuid::Uuid>, col);
try_get_type!(Vec<u8>, col);
}
Ok(JsonValue::Object(map))
}
#[cfg(feature = "sqlx-sqlite")]
crate::QueryResultRow::SqlxSqlite(row) => {
use serde_json::json;
use sqlx::{Column, Row, Sqlite, Type};
for column in row.columns() {
let col = if !column.name().starts_with(pre) {
continue;
} else {
column.name().replacen(pre, "", 1)
};
let col_type = column.type_info();
macro_rules! match_sqlite_type {
( $type: ty ) => {
if <$type as Type<Sqlite>>::type_info().eq(col_type) {
try_get_type!($type, col)
}
};
}
match_sqlite_type!(bool);
match_sqlite_type!(i8);
match_sqlite_type!(i16);
match_sqlite_type!(i32);
match_sqlite_type!(i64);
match_sqlite_type!(u8);
match_sqlite_type!(u16);
match_sqlite_type!(u32);
// match_sqlite_type!(u64); // unsupported by SQLx Sqlite
match_sqlite_type!(f32);
match_sqlite_type!(f64);
#[cfg(feature = "with-chrono")]
match_sqlite_type!(chrono::NaiveDate);
#[cfg(feature = "with-chrono")]
match_sqlite_type!(chrono::NaiveTime);
#[cfg(feature = "with-chrono")]
match_sqlite_type!(chrono::NaiveDateTime);
#[cfg(feature = "with-time")]
match_sqlite_type!(time::Date);
#[cfg(feature = "with-time")]
match_sqlite_type!(time::Time);
#[cfg(feature = "with-time")]
match_sqlite_type!(time::PrimitiveDateTime);
#[cfg(feature = "with-time")]
match_sqlite_type!(time::OffsetDateTime);
try_get_type!(String, col);
#[cfg(feature = "with-uuid")]
try_get_type!(uuid::Uuid, col);
try_get_type!(Vec<u8>, col);
}
Ok(JsonValue::Object(map))
}
#[cfg(feature = "mock")]
crate::QueryResultRow::Mock(row) => {
for (column, value) in row.clone().into_column_value_tuples() {
let col = if !column.starts_with(pre) {
continue;
} else {
column.replacen(pre, "", 1)
};
map.insert(col, sea_query::sea_value_to_json_value(&value));
}
Ok(JsonValue::Object(map))
}
#[cfg(feature = "proxy")]
crate::QueryResultRow::Proxy(row) => {
for (column, value) in row.clone().into_column_value_tuples() {
let col = if !column.starts_with(pre) {
continue;
} else {
column.replacen(pre, "", 1)
};
map.insert(col, sea_query::sea_value_to_json_value(&value));
}
Ok(JsonValue::Object(map))
}
#[allow(unreachable_patterns)]
_ => unreachable!(),
}
}
}
#[cfg(test)]
#[cfg(feature = "mock")]
mod tests {
use crate::tests_cfg::cake;
use crate::{entity::*, DbBackend, DbErr, MockDatabase};
use sea_query::Value;
#[smol_potat::test]
async fn to_json_1() -> Result<(), DbErr> {
let db = MockDatabase::new(DbBackend::Postgres)
.append_query_results([[maplit::btreemap! {
"id" => Into::<Value>::into(128), "name" => Into::<Value>::into("apple")
}]])
.into_connection();
assert_eq!(
cake::Entity::find().into_json().one(&db).await.unwrap(),
Some(serde_json::json!({
"id": 128,
"name": "apple"
}))
);
Ok(())
}
}