From c7df032a1aeffcfddff8a4d54213f22b51be7514 Mon Sep 17 00:00:00 2001
From: PopCorn <popcorn@192.168.1.68>
Date: Tue, 11 Nov 2025 16:41:38 +0800
Subject: [PATCH] init

---
 go.mod   |  3 +++
 tools.go | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 go.mod
 create mode 100644 tools.go

diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..2993646
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.whblueocean.cn/blueocean-go/utils
+
+go 1.25.3
diff --git a/tools.go b/tools.go
new file mode 100644
index 0000000..517b43c
--- /dev/null
+++ b/tools.go
@@ -0,0 +1,22 @@
+package utils
+
+import "reflect"
+
+func GetColumnsFromJsonTag(v interface{}) map[string]bool {
+	columns := make(map[string]bool)
+	t := reflect.TypeOf(v)
+
+	if t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	for i := 0; i < t.NumField(); i++ {
+		field := t.Field(i)
+		jsonTag := field.Tag.Get("json")
+		if jsonTag == "" || jsonTag == "-" {
+			continue
+		}
+		columns[jsonTag] = true
+	}
+	return columns
+}