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/// 新增或更新数据 ，返回 sql 语句。
/// 第二个参数为指定 不重复的字段。
/// 如果第二个参数里的字段同时存在，则更新其他字段的值，否则新增。
/// ```
/// let sql = mysetupdate!("for_test", "uid,title", {
/// "title": "set 新增",
/// "content": info,
/// "total": "null", // 新增字段为NULL
/// "total2": None, // 忽略该字段（默认值DEFAULT）
/// "uid": 8,
/// "price": Some(88.2), // 将新增为88.2
/// });
/// let id = my_run_drop(&mut conn, sql).unwrap();
/// ```
#[macro_export]
macro_rules! mysetupdate {
($t:expr, $i:expr, {$($k:tt: $v:expr),+$(,)?}) => {
{
fn type_of<T>(_: T) -> &'static str {
std::any::type_name::<T>()
}
fn get_v_type(t: &'static str) -> &'static str {
match t {
"&&str" | "&alloc::string::String" | "&&alloc::string::String" => {
t
},
"&u8" | "&u16" | "&u32" | "&u64" | "&u128" | "&usize" |
"&i8" | "&i16" | "&i32" | "&i64" | "&i128" | "&isize" |
"&f32" | "&f64" | "&f128" | "&bool" => {
t
},
"&&u8" | "&&u16" | "&&u32" | "&&u64" | "&&u128" | "&&usize" |
"&&i8" | "&&i16" | "&&i32" | "&&i64" | "&&i128" | "&&isize" |
"&&f32" | "&&f64" | "&&f128" | "&&bool" => {
t
},
"&core::option::Option<&str>" |
"&core::option::Option<alloc::string::String>" |
"&core::option::Option<&alloc::string::String>" => {
"&&str"
},
"&&core::option::Option<&str>" |
"&&core::option::Option<alloc::string::String>" |
"&&core::option::Option<&alloc::string::String>" => {
"&&str"
},
"&core::option::Option<u8>" |
"&core::option::Option<u16>" |
"&core::option::Option<u32>" |
"&core::option::Option<u64>" |
"&core::option::Option<u128>" |
"&core::option::Option<usize>" |
"&core::option::Option<i8>" |
"&core::option::Option<i16>" |
"&core::option::Option<i32>" |
"&core::option::Option<i64>" |
"&core::option::Option<i128>" |
"&core::option::Option<isize>" |
"&core::option::Option<f32>" |
"&core::option::Option<f64>" |
"&core::option::Option<f128>" |
"&core::option::Option<bool>" => {
"&u8"
},
"&&core::option::Option<u8>" |
"&&core::option::Option<u16>" |
"&&core::option::Option<u32>" |
"&&core::option::Option<u64>" |
"&&core::option::Option<u128>" |
"&&core::option::Option<usize>" |
"&&core::option::Option<i8>" |
"&&core::option::Option<i16>" |
"&&core::option::Option<i32>" |
"&&core::option::Option<i64>" |
"&&core::option::Option<i128>" |
"&&core::option::Option<isize>" |
"&&core::option::Option<f32>" |
"&&core::option::Option<f64>" |
"&&core::option::Option<f128>" |
"&&core::option::Option<bool>" => {
"&u8"
},
_ => {
"&&str"
},
}
}
let mut keys = String::from("");
let mut values = String::from("");
let mut values_upd = String::from("");
let unique_keys = $i.split(",").collect::<Vec<&str>>();
$(
let temp_op = $v;
let op_v_type = type_of(&temp_op);
let mut temp_v: String;
let mut v_type = "&&str";
let mut is_option_none = false;
if op_v_type.contains("&core::option::Option") {
let op_str = format!("{:?}", temp_op);
if op_str == "None".to_string() {
temp_v = "null".to_string();
is_option_none = true;
} else {
let mut t = op_str.replace("Some(", "");
t.pop();
temp_v = t;
v_type = get_v_type(op_v_type)
}
} else {
temp_v = format!("{:?}", temp_op);
v_type = get_v_type(op_v_type)
}
let item_k = $k;
if !is_option_none {
if temp_v.as_str() == "null" || temp_v.as_str() == "\"null\"" {
values = values + "NULL,";
if !unique_keys.contains(&item_k) {
values_upd = values_upd + item_k + " = VALUES(" + item_k + "),";
}
} else {
match v_type {
"&&str" | "&alloc::string::String" | "&&alloc::string::String" => {
temp_v.remove(0);
temp_v.pop();
// let mut v_r = temp_v.as_str().replace("\\", "\\\\");
// v_r = v_r.replace("\"", "\\\"");
values = values + "\"" + &temp_v + "\",";
if !unique_keys.contains(&item_k) {
values_upd = values_upd + item_k + " = VALUES(" + item_k + "),";
}
},
"&u8" | "&u16" | "&u32" | "&u64" | "&u128" | "&usize" |
"&i8" | "&i16" | "&i32" | "&i64" | "&i128" | "&isize" |
"&f32" | "&f64" | "&f128" | "&bool" => {
values = values + temp_v.as_str() + ",";
if !unique_keys.contains(&item_k) {
values_upd = values_upd + item_k + " = VALUES(" + item_k + "),";
}
},
"&&u8" | "&&u16" | "&&u32" | "&&u64" | "&&u128" | "&&usize" |
"&&i8" | "&&i16" | "&&i32" | "&&i64" | "&&i128" | "&&isize" |
"&&f32" | "&&f64" | "&&f128" | "&&bool" => {
values = values + temp_v.as_str() + ",";
if !unique_keys.contains(&item_k) {
values_upd = values_upd + item_k + " = VALUES(" + item_k + "),";
}
},
_ => {
"".to_string();
},
};
}
keys = keys + item_k + ",";
}
)+
keys.pop();
values.pop();
values_upd.pop();
let sql: String = "INSERT INTO ".to_string() + $t + " ( " + keys.as_str() + " ) "
+ " VALUES ( " + values.as_str() + " )" + " ON DUPLICATE KEY UPDATE " + values_upd.as_str();
sql
}
};
}