精简后的项目：仅保留 api/ui 源码、文档、构建依赖

api/graphql/models/utils.go

@@ -0,0 +1,46 @@
+package models
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+func FormatSQL(tx *gorm.DB, order *Ordering, paginate *Pagination) *gorm.DB {
+
+	if paginate != nil {
+		if paginate.Limit != nil {
+			tx.Limit(*paginate.Limit)
+		}
+
+		if paginate.Offset != nil {
+			tx.Offset(*paginate.Offset)
+		}
+	}
+
+	if order != nil && order.OrderBy != nil {
+		desc := false
+		if order.OrderDirection != nil && order.OrderDirection.IsValid() {
+			if *order.OrderDirection == OrderDirectionDesc {
+				desc = true
+			}
+		}
+
+		tx.Order(clause.OrderByColumn{
+			Column: clause.Column{
+				Name: *order.OrderBy,
+			},
+			Desc: desc,
+		})
+	}
+
+	return tx
+}
+
+// MD5Hash hashes value to a 32 length digest, the result is the same as the MYSQL function md5()
+func MD5Hash(value string) string {
+	hash := md5.Sum([]byte(value))
+	return hex.EncodeToString(hash[:])
+}