✨Fix api/v1/users/condition end point can not handle filter with Chinese

[Eric-Guo]

GPT 5 prompt

I guess due to chinese_name is utf8 input cause above error, can you propose a fix in sponge framework?

example payload

## Get a users by custom condition
# Returns a single users that matches the specified filter conditions.
curl -X "POST" "/api/v1/users/condition" \
     -H 'Accept: *' \
     -H 'Authorization: Bearer' \
     -H 'Content-Type: application/json; charset=utf-8' \
     -d $'{
  "columns": [
    {
      "name": "chinese_name",
      "exp": "like",
      "value": "过%"
    }
  ]
}'

error log

2025-09-03 09:00:54.318	INFO	middleware/logging.go:230	>>>>	{"code": 200, "method": "POST", "url": "/api/v1/users/condition", "time_us": 4108, "size": 1362, "body": "{\"code\":0,\"msg\":\"ok\",\"data\":{\"users\":{\"id\":1,\"email\":\"[email protected]\",\"encryptedPassword\":\"$2a$11$pc3izhrvG9kYisahCXTavuaOWKafPEUsXpeAXCUDkgUADao7lIZpi\",\"resetPasswordToken\":\"\",\"resetPasswordSentAt\":null,\"rememberCreatedAt\":\"2025-04-15T07:20:07+08:00\",\"signInCount\":17845,\"currentS ...... ", "request_id": "K1KyxAQ43T"}
2025-09-03 09:01:11.201	INFO	middleware/logging.go:199	<<<<	{"method": "POST", "url": "/api/v1/users/condition", "size": 68, "body": "{\"columns\":[{\"name\":\"chinese_name\",\"exp\":\"like\",\"value\":\"\\u8fc7%\"}]}", "request_id": "Erq8Ap6sdv"}
2025-09-03 09:01:11.201	WARN	glog/glog.go:94	Gorm msg	{"error": "Error 3988 (HY000): Conversion from collation utf8mb3_general_ci into utf8mb4_0900_ai_ci impossible for parameter", "sql": "SELECT * FROM `users` WHERE chinese_name LIKE 'è\ufffd\ufffd%' ORDER BY `users`.`id` LIMIT 1", "rows": 0, "ms": 0.473583, "file_line": "dao/users.go:339", "request_id": "Erq8Ap6sdv"}
2025-09-03 09:01:11.201	ERROR	handler/users.go:307	GetByCondition error	{"error": "Error 3988 (HY000): Conversion from collation utf8mb3_general_ci into utf8mb4_0900_ai_ci impossible for parameter", "form": {"columns":[{"name":"chinese_name","exp":"like","value":"过%","logic":""}]}, "request_id": "Erq8Ap6sdv"}
test-user-server/internal/handler.(*usersHandler).GetByCondition
	/Users/guochunzhong/git/user_server-web-http/internal/handler/users.go:307
github.com/gin-gonic/gin.(*Context).Next
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185
github.com/go-dev-frame/sponge/pkg/gin/middleware/metrics.Metrics.func1
	/Users/guochunzhong/git/oss/sponge/pkg/gin/middleware/metrics/metrics.go:121
github.com/gin-gonic/gin.(*Context).Next
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185
github.com/go-dev-frame/sponge/pkg/gin/middleware.Logging.func1
	/Users/guochunzhong/git/oss/sponge/pkg/gin/middleware/logging.go:214
github.com/gin-gonic/gin.(*Context).Next
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185
github.com/go-dev-frame/sponge/pkg/gin/middleware.RequestID.func1
	/Users/guochunzhong/git/oss/sponge/pkg/gin/middleware/requstid.go:102
github.com/gin-gonic/gin.(*Context).Next
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185
github.com/gin-gonic/gin.CustomRecoveryWithWriter.func1
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/recovery.go:102
github.com/gin-gonic/gin.(*Context).Next
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185
github.com/gin-gonic/gin.(*Engine).handleHTTPRequest
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:644
github.com/gin-gonic/gin.(*Engine).ServeHTTP
	/Users/guochunzhong/go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:600
net/http.serverHandler.ServeHTTP
	/opt/homebrew/Cellar/go/1.24.6/libexec/src/net/http/server.go:3301
net/http.(*conn).serve
	/opt/homebrew/Cellar/go/1.24.6/libexec/src/net/http/server.go:2102
2025-09-03 09:01:11.202	ERROR	middleware/logging.go:228	>>>>	{"code": 500, "method": "POST", "url": "/api/v1/users/condition", "time_us": 982, "size": 53, "body": "{\"code\":500,\"msg\":\"Internal Server Error\",\"data\":{}}", "request_id": "Erq8Ap6sdv"}