🎨 The database template field supports using other template fields https://github.com/siyuan-note/siyuan/issues/15517

kernel/model/attribute_view.go

@@ -1551,33 +1551,34 @@ func GetBlockAttributeViewKeys(nodeID string) (ret []*BlockAttributeViewKeys) {
 		}
 
 		// 再处理模板字段
-
+		templateKeys, _ := sql.GetTemplateKeysByResolutionOrder(attrView)
-		// 渲染模板
 		var renderTemplateErr error
-		for _, kv := range keyValues {
+		for _, templateKey := range templateKeys {
-			switch kv.Key.Type {
+			for _, kv := range keyValues {
-			case av.KeyTypeTemplate:
+				if kv.Key.ID != templateKey.ID || 1 > len(kv.Values) {
-				if 0 < len(kv.Values) {
+					continue
-					var ial map[string]string
+				}
-					block := av.GetKeyBlockValue(keyValues)
-					if nil != block && !block.IsDetached {
-						ial = sql.GetBlockAttrs(block.BlockID)
-					}
-					if nil == ial {
-						ial = map[string]string{}
-					}
-					if nil == kv.Values[0].Template {
-						kv.Values[0] = av.GetAttributeViewDefaultValue(kv.Values[0].ID, kv.Key.ID, nodeID, kv.Key.Type)
-					}
 
-					var renderErr error
+				var ial map[string]string
-					kv.Values[0].Template.Content, renderErr = sql.RenderTemplateField(ial, keyValues, kv.Key.Template)
+				block := av.GetKeyBlockValue(keyValues)
-					if nil != renderErr {
+				if nil != block && !block.IsDetached {
-						renderTemplateErr = fmt.Errorf("database [%s] template field [%s] rendering failed: %s", getAttrViewName(attrView), kv.Key.Name, renderErr)
+					ial = sql.GetBlockAttrs(block.BlockID)
-					}
+				}
+				if nil == ial {
+					ial = map[string]string{}
+				}
+				if nil == kv.Values[0].Template {
+					kv.Values[0] = av.GetAttributeViewDefaultValue(kv.Values[0].ID, kv.Key.ID, nodeID, kv.Key.Type)
+				}
+
+				var renderErr error
+				kv.Values[0].Template.Content, renderErr = sql.RenderTemplateField(ial, keyValues, kv.Key.Template)
+				if nil != renderErr {
+					renderTemplateErr = fmt.Errorf("database [%s] template field [%s] rendering failed: %s", getAttrViewName(attrView), kv.Key.Name, renderErr)
 				}
 			}
 		}
+
 		if nil != renderTemplateErr {
 			util.PushErrMsg(fmt.Sprintf(Conf.Language(44), util.EscapeHTML(renderTemplateErr.Error())), 30000)
 		}

kernel/sql/av.go

@@ -509,7 +509,7 @@ func fillAttributeViewAutoGeneratedValues(attrView *av.AttributeView, collection
 	}
 }
 
-func fillAttributeViewTemplateValues(attrView *av.AttributeView, collection av.Collection, ials map[string]map[string]string, items map[string][]*av.KeyValues, renderedTemplateKeyCollections map[string]av.Collection) (err error) {
+func fillAttributeViewTemplateValues(attrView *av.AttributeView, collection av.Collection, ials map[string]map[string]string, items map[string][]*av.KeyValues) (err error) {
 	existTemplateField := false
 	for _, kVals := range attrView.KeyValues {
 		if av.KeyTypeTemplate == kVals.Key.Type {
@@ -521,40 +521,34 @@ func fillAttributeViewTemplateValues(attrView *av.AttributeView, collection av.C
 		return
 	}
 
-	var renderTemplateErr error
+	templateKeys, _ := GetTemplateKeysByResolutionOrder(attrView)
-	for _, item := range collection.GetItems() {
+	for _, templateKey := range templateKeys {
-		for _, value := range item.GetValues() {
+		for _, item := range collection.GetItems() {
-			itemID := item.GetID()
+			value := item.GetValue(templateKey.ID)
-
+			keyValues := items[item.GetID()]
-			switch value.Type {
+			var ial map[string]string
-			case av.KeyTypeTemplate: // 渲染模板字段
+			blockVal := item.GetBlockValue()
-				keyValues := items[itemID]
+			if nil != blockVal {
-				var ial map[string]string
+				ial = ials[blockVal.Block.ID]
-				blockVal := item.GetBlockValue()
+			}
-				if nil != blockVal {
+			if nil == ial {
-					ial = ials[blockVal.Block.ID]
+				ial = map[string]string{}
-				}
-				if nil == ial {
-					ial = map[string]string{}
-				}
-				content, renderErr := RenderTemplateField(ial, keyValues, value.Template.Content)
-				value.Template.Content = content
-				if nil != renderErr {
-					key, _ := attrView.GetKey(value.KeyID)
-					keyName := ""
-					if nil != key {
-						keyName = key.Name
-					}
-					err = fmt.Errorf("database [%s] template field [%s] rendering failed: %s", getAttrViewName(attrView), keyName, renderErr)
-				}
 			}
 
-			if nil != err {
+			content, renderErr := RenderTemplateField(ial, keyValues, value.Template.Content)
-				renderTemplateErr = err
+			if nil != renderErr {
+				key, _ := attrView.GetKey(value.KeyID)
+				keyName := ""
+				if nil != key {
+					keyName = key.Name
+				}
+				err = fmt.Errorf("database [%s] template field [%s] rendering failed: %s", getAttrViewName(attrView), keyName, renderErr)
 			}
+
+			value.Template.Content = content
+			items[item.GetID()] = append(keyValues, &av.KeyValues{Key: templateKey, Values: []*av.Value{value}})
 		}
 	}
-	err = renderTemplateErr
 	return
 }
 
@@ -765,6 +759,50 @@ func manualSort(view *av.View, collection av.Collection) {
 	collection.SetItems(items)
 }
 
+func GetTemplateKeysByResolutionOrder(attrView *av.AttributeView) (ret []*av.Key, resolved bool) {
+	ret = []*av.Key{}
+
+	resolvedTemplateKeys := map[string]bool{}
+	for i := 0; i < 7; i++ {
+		templateKeyCount := 0
+		for _, keyValues := range attrView.KeyValues {
+			if av.KeyTypeTemplate != keyValues.Key.Type {
+				continue
+			}
+
+			templateKeyCount++
+			vars, err := getTemplateVars(keyValues.Key.Template)
+			if nil != err {
+				resolvedTemplateKeys[keyValues.Key.ID] = true
+				ret = append(ret, keyValues.Key)
+				continue
+			}
+
+			currentTemplateKeyResolved := true
+			for _, kValues := range attrView.KeyValues {
+				if gulu.Str.Contains(kValues.Key.Name, vars) {
+					if av.KeyTypeTemplate == kValues.Key.Type {
+						if _, ok := resolvedTemplateKeys[kValues.Key.ID]; !ok {
+							currentTemplateKeyResolved = false
+							break
+						}
+					}
+				}
+			}
+			if currentTemplateKeyResolved {
+				resolvedTemplateKeys[keyValues.Key.ID] = true
+				ret = append(ret, keyValues.Key)
+			}
+		}
+
+		resolved = len(resolvedTemplateKeys) == templateKeyCount
+		if resolved {
+			break
+		}
+	}
+	return
+}
+
 func GetTemplateKeyRelevantKeys(attrView *av.AttributeView, templateKey *av.Key) (ret []*av.Key) {
 	ret = []*av.Key{}
 	if nil == templateKey || "" == templateKey.Template {