File size: 3,387 Bytes
2d8be8f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | // Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
use serde_json::Value as JsonValue;
use sqlx::{postgres::PgValueRef, TypeInfo, Value, ValueRef};
use time::{Date, OffsetDateTime, PrimitiveDateTime, Time};
use crate::Error;
pub(crate) fn to_json(v: PgValueRef) -> Result<JsonValue, Error> {
if v.is_null() {
return Ok(JsonValue::Null);
}
let res = match v.type_info().name() {
"CHAR" | "VARCHAR" | "TEXT" | "NAME" | "UUID" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode() {
JsonValue::String(v)
} else {
JsonValue::Null
}
}
"FLOAT4" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<f32>() {
JsonValue::from(v)
} else {
JsonValue::Null
}
}
"FLOAT8" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<f64>() {
JsonValue::from(v)
} else {
JsonValue::Null
}
}
"INT2" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<i16>() {
JsonValue::Number(v.into())
} else {
JsonValue::Null
}
}
"INT4" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<i32>() {
JsonValue::Number(v.into())
} else {
JsonValue::Null
}
}
"INT8" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<i64>() {
JsonValue::Number(v.into())
} else {
JsonValue::Null
}
}
"BOOL" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode() {
JsonValue::Bool(v)
} else {
JsonValue::Null
}
}
"DATE" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<Date>() {
JsonValue::String(v.to_string())
} else {
JsonValue::Null
}
}
"TIME" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<Time>() {
JsonValue::String(v.to_string())
} else {
JsonValue::Null
}
}
"TIMESTAMP" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<PrimitiveDateTime>() {
JsonValue::String(v.to_string())
} else {
JsonValue::Null
}
}
"TIMESTAMPTZ" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<OffsetDateTime>() {
JsonValue::String(v.to_string())
} else {
JsonValue::Null
}
}
"JSON" | "JSONB" => ValueRef::to_owned(&v).try_decode().unwrap_or_default(),
"BYTEA" => {
if let Ok(v) = ValueRef::to_owned(&v).try_decode::<Vec<u8>>() {
JsonValue::Array(v.into_iter().map(|n| JsonValue::Number(n.into())).collect())
} else {
JsonValue::Null
}
}
"VOID" => JsonValue::Null,
_ => return Err(Error::UnsupportedDatatype(v.type_info().name().to_string())),
};
Ok(res)
}
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