From 7145460c189ffcca410443d9abd1521203ad74b3 Mon Sep 17 00:00:00 2001
From: Daniel <845765@qq.com>
Date: Tue, 24 Oct 2023 09:33:59 +0800
Subject: [PATCH] :art: Shallow clone the corresponding database when the
 template contains database blocks
 https://github.com/siyuan-note/siyuan/issues/9494

---
 kernel/av/av.go          | 39 +++++++++++++++++++++++++++++++++++++++
 kernel/model/template.go | 18 ++++++++++++++++++
 2 files changed, 57 insertions(+)

diff --git a/kernel/av/av.go b/kernel/av/av.go
index c2333f9e7..919f2ee76 100644
--- a/kernel/av/av.go
+++ b/kernel/av/av.go
@@ -46,6 +46,45 @@ type AttributeView struct {
 	Views     []*View      `json:"views"`     // 视图
 }
 
+func CloneAttributeView(av *AttributeView) (ret *AttributeView) {
+	ret = &AttributeView{}
+	data, err := gulu.JSON.MarshalJSON(av)
+	if nil != err {
+		logging.LogErrorf("marshal attribute view [%s] failed: %s", av.ID, err)
+		return nil
+	}
+	if err = gulu.JSON.UnmarshalJSON(data, ret); nil != err {
+		logging.LogErrorf("unmarshal attribute view [%s] failed: %s", av.ID, err)
+		return nil
+	}
+
+	ret.ID = ast.NewNodeID()
+	view, err := ret.GetView()
+	if nil == err {
+		view.ID = ast.NewNodeID()
+		ret.ViewID = view.ID
+	} else {
+		view = NewView()
+		ret.ViewID = view.ID
+		ret.Views = append(ret.Views, view)
+	}
+
+	keyIDMap := map[string]string{}
+	for _, kv := range ret.KeyValues {
+		newID := ast.NewNodeID()
+		keyIDMap[kv.Key.ID] = newID
+		kv.Key.ID = newID
+		kv.Values = []*Value{}
+	}
+
+	view.Table.ID = ast.NewNodeID()
+	for _, column := range view.Table.Columns {
+		column.ID = keyIDMap[column.ID]
+	}
+	view.Table.RowIDs = []string{}
+	return
+}
+
 // KeyValues 描述了属性视图属性列值的结构。
 type KeyValues struct {
 	Key    *Key     `json:"key"`              // 属性视图属性列
diff --git a/kernel/model/template.go b/kernel/model/template.go
index 3881f027f..2d93529cb 100644
--- a/kernel/model/template.go
+++ b/kernel/model/template.go
@@ -20,6 +20,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"github.com/siyuan-note/siyuan/kernel/av"
 	"io/fs"
 	"os"
 	"path/filepath"
@@ -277,6 +278,23 @@ func renderTemplate(p, id string) (string, error) {
 				n.TextMarkInlineMathContent = strings.ReplaceAll(n.TextMarkInlineMathContent, "|", "&#124;")
 			}
 		}
+
+		if ast.NodeAttributeView == n.Type {
+			// 重新生成数据库视图
+			attrView, parseErr := av.ParseAttributeView(n.AttributeViewID)
+			if nil != parseErr {
+				logging.LogErrorf("parse attribute view [%s] failed: %s", n.AttributeViewID, parseErr)
+			} else {
+				cloned := av.CloneAttributeView(attrView)
+				if nil != cloned {
+					n.AttributeViewID = cloned.ID
+					if saveErr := av.SaveAttributeView(cloned); nil != saveErr {
+						logging.LogErrorf("save attribute view [%s] failed: %s", cloned.ID, saveErr)
+					}
+				}
+			}
+		}
+
 		return ast.WalkContinue
 	})
 	for _, n := range nodesNeedAppendChild {