Fix #1851

sea-orm-codegen/src/entity/active_enum.rs

@@ -2,6 +2,7 @@ use heck::ToUpperCamelCase;
 use proc_macro2::TokenStream;
 use quote::{format_ident, quote};
 use sea_query::DynIden;
+use std::fmt::Write;
 
 use crate::WithSerde;
 
@@ -29,12 +30,15 @@ impl ActiveEnum {
  let variant_name = v.to_upper_camel_case();
  if variant_name.is_empty() {
  println!("Warning: item '{}' in the enumeration '{}' cannot be converted into a valid Rust enum member name. It will be converted to its corresponding UTF-8 encoding. You can modify it later as needed.", v, enum_name);
- let mut utf_string = String::new();
+ let mut ss = String::new();
  for c in v.chars() {
- utf_string.push('U');
- utf_string.push_str(&format!("{:04X}", c as u32));
+ if c.len_utf8() > 1 {
+ write!(&mut ss, "{c}").unwrap();
+ } else {
+ write!(&mut ss, "U{:04X}", c as u32).unwrap();
+ }
  }
- format_ident!("{}", utf_string)
+ format_ident!("{}", ss)
  } else {
  format_ident!("{}", variant_name)
  }
@@ -248,6 +252,7 @@ mod tests {
  "/",
  "//",
  "A-B-C",
+ "你好",
  ]
  .into_iter()
  .map(|variant| Alias::new(variant).into_iden())
@@ -278,6 +283,8 @@ mod tests {
  U002FU002F,
  #[sea_orm(string_value = "A-B-C")]
  ABC,
+ #[sea_orm(string_value = "你好")]
+ 你好,
  }
  )
  .to_string()