æ·feat: commplete init process

pkg/util/pagination.go

@@ -0,0 +1,29 @@
+package util
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/unknwon/com"
+
+	"message-nest/pkg/setting"
+)
+
+// GetPage get page parameters
+func GetPage(c *gin.Context) int {
+	result := 0
+	page := com.StrTo(c.Query("page")).MustInt()
+	if page > 0 {
+		result = (page - 1) * setting.AppSetting.PageSize
+	}
+
+	return result
+}
+
+func GetPageSize(c *gin.Context) (int, int) {
+	result := 0
+	page := com.StrTo(c.Query("page")).MustInt()
+	size := com.StrTo(c.Query("size")).MustInt()
+	if page > 0 {
+		result = (page - 1) * size
+	}
+	return result, size
+}