🧑‍💻 Add internal kernel API /api/attr/batchGetBlockAttrs https://github.com/siyuan-note/siyuan/issues/11786

kernel/api/attr.go

@@ -33,6 +33,24 @@ func getBookmarkLabels(c *gin.Context) {
 	ret.Data = model.BookmarkLabels()
 }
 
+func batchGetBlockAttrs(c *gin.Context) {
+	ret := gulu.Ret.NewResult()
+	defer c.JSON(http.StatusOK, ret)
+
+	arg, ok := util.JsonArg(c, ret)
+	if !ok {
+		return
+	}
+
+	ids := arg["ids"].([]interface{})
+	var idList []string
+	for _, id := range ids {
+		idList = append(idList, id.(string))
+	}
+
+	ret.Data = model.BatchGetBlockAttrs(idList)
+}
+
 func getBlockAttrs(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)

kernel/api/router.go

@@ -221,6 +221,7 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/attr/setBlockAttrs", model.CheckAuth, model.CheckAdminRole, model.CheckReadonly, setBlockAttrs)
 	ginServer.Handle("POST", "/api/attr/batchSetBlockAttrs", model.CheckAuth, model.CheckAdminRole, model.CheckReadonly, batchSetBlockAttrs)
 	ginServer.Handle("POST", "/api/attr/getBlockAttrs", model.CheckAuth, getBlockAttrs)
+	ginServer.Handle("POST", "/api/attr/batchGetBlockAttrs", model.CheckAuth, batchGetBlockAttrs)
 
 	ginServer.Handle("POST", "/api/cloud/getCloudSpace", model.CheckAuth, model.CheckAdminRole, getCloudSpace)
 

kernel/model/attribute_view.go

@@ -1430,7 +1430,7 @@ func (tx *Transaction) doRemoveAttrViewView(operation *Operation) (ret *TxErr) {
 func getMirrorBlocksNodes(avID string) (trees []*parse.Tree, nodes []*ast.Node) {
 	mirrorBlocks := treenode.GetMirrorAttrViewBlockIDs(avID)
 	mirrorBlockTree := map[string]*parse.Tree{}
-	treeMap := map[string]*parse.Tree{}
+	treeCache := map[string]*parse.Tree{}
 	for _, mirrorBlock := range mirrorBlocks {
 		bt := treenode.GetBlockTree(mirrorBlock)
 		if nil == bt {
@@ -1445,7 +1445,7 @@ func getMirrorBlocksNodes(avID string) (trees []*parse.Tree, nodes []*ast.Node)
 				logging.LogErrorf("load tree by block ID [%s] failed", mirrorBlock)
 				continue
 			}
-			treeMap[tree.ID] = tree
+			treeCache[tree.ID] = tree
 			mirrorBlockTree[mirrorBlock] = tree
 		}
 	}
@@ -1460,7 +1460,7 @@ func getMirrorBlocksNodes(avID string) (trees []*parse.Tree, nodes []*ast.Node)
 		nodes = append(nodes, node)
 	}
 
-	for _, tree := range treeMap {
+	for _, tree := range treeCache {
 		trees = append(trees, tree)
 	}
 	return
@@ -1702,21 +1702,21 @@ func getAvNames(avIDs string) (ret string) {
 
 func getAttrViewBoundNodes(attrView *av.AttributeView) (ret []*ast.Node) {
 	blockKeyValues := attrView.GetBlockKeyValues()
-	treeMap := map[string]*parse.Tree{}
+	treeCache := map[string]*parse.Tree{}
 	for _, blockKeyValue := range blockKeyValues.Values {
 		if blockKeyValue.IsDetached {
 			continue
 		}
 
 		var tree *parse.Tree
-		tree = treeMap[blockKeyValue.BlockID]
+		tree = treeCache[blockKeyValue.BlockID]
 		if nil == tree {
 			tree, _ = LoadTreeByBlockID(blockKeyValue.BlockID)
 		}
 		if nil == tree {
 			continue
 		}
-		treeMap[blockKeyValue.BlockID] = tree
+		treeCache[blockKeyValue.BlockID] = tree
 
 		node := treenode.GetNodeInTree(tree, blockKeyValue.BlockID)
 		if nil == node {

kernel/model/blockial.go

@@ -30,6 +30,7 @@ import (
 	"github.com/araddon/dateparse"
 	"github.com/siyuan-note/logging"
 	"github.com/siyuan-note/siyuan/kernel/cache"
+	"github.com/siyuan-note/siyuan/kernel/filesys"
 	"github.com/siyuan-note/siyuan/kernel/sql"
 	"github.com/siyuan-note/siyuan/kernel/treenode"
 	"github.com/siyuan-note/siyuan/kernel/util"
@@ -287,6 +288,36 @@ func ResetBlockAttrs(id string, nameValues map[string]string) (err error) {
 	return
 }
 
+func BatchGetBlockAttrs(ids []string) (ret map[string]map[string]string) {
+	WaitForWritingFiles()
+
+	ret = map[string]map[string]string{}
+	trees := map[string]*parse.Tree{}
+	bts := treenode.GetBlockTrees(ids)
+	luteEngine := util.NewLute()
+	for id, bt := range bts {
+		if nil == trees[id] {
+			tree, err := filesys.LoadTree(bt.BoxID, bt.Path, luteEngine)
+			if nil != err {
+				logging.LogErrorf("load tree [%s] failed: %s", bt.Path, err)
+				continue
+			}
+			trees[id] = tree
+		}
+	}
+
+	for _, id := range ids {
+		tree := trees[id]
+		if nil == tree {
+			continue
+		}
+
+		ret[id] = getBlockAttrs0(id, tree)
+		cache.PutBlockIAL(id, ret[id])
+	}
+	return
+}
+
 func GetBlockAttrs(id string) (ret map[string]string) {
 	ret = map[string]string{}
 	if cached := cache.GetBlockIAL(id); nil != cached {
@@ -296,20 +327,7 @@ func GetBlockAttrs(id string) (ret map[string]string) {
 
 	WaitForWritingFiles()
 
-	tree, err := LoadTreeByBlockID(id)
+	ret = getBlockAttrs(id)
-	if nil != err {
-		return
-	}
-
-	node := treenode.GetNodeInTree(tree, id)
-	if nil == node {
-		logging.LogWarnf("block [%s] not found", id)
-		return
-	}
-
-	for _, kv := range node.KramdownIAL {
-		ret[kv[0]] = html.UnescapeAttrVal(kv[1])
-	}
 	cache.PutBlockIAL(id, ret)
 	return
 }
@@ -321,11 +339,25 @@ func GetBlockAttrsWithoutWaitWriting(id string) (ret map[string]string) {
 		return
 	}
 
+	ret = getBlockAttrs(id)
+	cache.PutBlockIAL(id, ret)
+	return
+}
+
+func getBlockAttrs(id string) (ret map[string]string) {
+	ret = map[string]string{}
+
 	tree, err := LoadTreeByBlockID(id)
 	if nil != err {
 		return
 	}
 
+	ret = getBlockAttrs0(id, tree)
+	return
+}
+
+func getBlockAttrs0(id string, tree *parse.Tree) (ret map[string]string) {
+	ret = map[string]string{}
 	node := treenode.GetNodeInTree(tree, id)
 	if nil == node {
 		logging.LogWarnf("block [%s] not found", id)
@@ -335,6 +367,5 @@ func GetBlockAttrsWithoutWaitWriting(id string) (ret map[string]string) {
 	for _, kv := range node.KramdownIAL {
 		ret[kv[0]] = html.UnescapeAttrVal(kv[1])
 	}
-	cache.PutBlockIAL(id, ret)
 	return
 }

kernel/treenode/blocktree.go

@@ -23,6 +23,7 @@ import (
 	"os"
 	"runtime"
 	"runtime/debug"
+	"strings"
 	"sync"
 	"time"
 
@@ -303,6 +304,26 @@ func ExistBlockTree(id string) bool {
 	return 0 < count
 }
 
+func GetBlockTrees(ids []string) (ret map[string]*BlockTree) {
+	ret = map[string]*BlockTree{}
+	sqlStmt := "SELECT * FROM blocktrees WHERE id IN ('" + strings.Join(ids, "','") + "')"
+	rows, err := db.Query(sqlStmt)
+	if nil != err {
+		logging.LogErrorf("sql query [%s] failed: %s", sqlStmt, err)
+		return
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var block BlockTree
+		if err = rows.Scan(&block.ID, &block.RootID, &block.ParentID, &block.BoxID, &block.Path, &block.HPath, &block.Updated, &block.Type); nil != err {
+			logging.LogErrorf("query scan field failed: %s", err)
+			return
+		}
+		ret[block.ID] = &block
+	}
+	return
+}
+
 func GetBlockTree(id string) (ret *BlockTree) {
 	if "" == id {
 		return