feat: db分页取得页码页数量

src/framework/datasource/datasource.go

@@ -9,6 +9,7 @@ import (
 
 	"be.ems/src/framework/config"
 	"be.ems/src/framework/logger"
+	"be.ems/src/framework/utils/parse"
 
 	"gorm.io/driver/mysql"
 	"gorm.io/gorm"
@@ -162,3 +163,19 @@ func ExecDB(source string, sql string, parameters []any) (int64, error) {
 	}
 	return res.RowsAffected, nil
 }
+
+// PageNumSize 分页页码记录数
+func PageNumSize(pageNum, pageSize any) (int, int) {
+	// 记录起始索引
+	num := parse.Number(pageNum)
+	if num < 1 {
+		num = 1
+	}
+
+	// 显示记录数
+	size := parse.Number(pageSize)
+	if size < 0 {
+		size = 10
+	}
+	return int(num - 1), int(size)
+}