From 844feae395060d7f1f28a80fadd41fa3dcc46093 Mon Sep 17 00:00:00 2001
From: Denis Bykhov <bykhov.denis@gmail.com>
Date: Mon, 13 Apr 2026 09:50:09 +0500
Subject: [PATCH] EmptyValue process function (#10756)

* EmptyValue process function

Signed-off-by: Denis Bykhov <bykhov.denis@gmail.com>

* Fix formatting

Signed-off-by: Denis Bykhov <bykhov.denis@gmail.com>

---------

Signed-off-by: Denis Bykhov <bykhov.denis@gmail.com>
---
 models/process/src/functions.ts               | 12 +++++++
 models/server-process/src/index.ts            |  4 +++
 .../src/components/CardGridView.svelte        | 33 ++++++++++---------
 .../ActivitySetAttributeViewer.svelte         |  2 +-
 plugins/process-assets/lang/cs.json           |  3 +-
 plugins/process-assets/lang/de.json           |  3 +-
 plugins/process-assets/lang/en.json           |  3 +-
 plugins/process-assets/lang/es.json           |  3 +-
 plugins/process-assets/lang/fr.json           |  3 +-
 plugins/process-assets/lang/it.json           |  3 +-
 plugins/process-assets/lang/ja.json           |  3 +-
 plugins/process-assets/lang/pt-br.json        |  3 +-
 plugins/process-assets/lang/pt.json           |  3 +-
 plugins/process-assets/lang/ru.json           |  3 +-
 plugins/process-assets/lang/tr.json           |  3 +-
 plugins/process-assets/lang/zh.json           |  3 +-
 plugins/process-resources/src/plugin.ts       |  1 +
 plugins/process-resources/src/utils.ts        |  2 +-
 plugins/process/src/index.ts                  |  1 +
 .../src/components/StringPresenter.svelte     |  6 ++--
 server-plugins/process-resources/src/index.ts |  2 ++
 .../process-resources/src/transform.ts        |  4 +++
 server-plugins/process-resources/src/utils.ts |  4 +--
 server-plugins/process/src/index.ts           |  1 +
 24 files changed, 74 insertions(+), 34 deletions(-)

diff --git a/models/process/src/functions.ts b/models/process/src/functions.ts
index 62f49afee9..5beae3ee06 100644
--- a/models/process/src/functions.ts
+++ b/models/process/src/functions.ts
@@ -461,6 +461,18 @@ export function defineFunctions (builder: Builder): void {
     process.function.RoleContext
   )
 
+  builder.createDoc(
+    process.class.ProcessFunction,
+    core.space.Model,
+    {
+      of: core.class.TypeAny,
+      category: 'attribute',
+      label: process.string.EmptyValue,
+      type: 'context'
+    },
+    process.function.EmptyValue
+  )
+
   builder.createDoc(
     process.class.ProcessFunction,
     core.space.Model,
diff --git a/models/server-process/src/index.ts b/models/server-process/src/index.ts
index ad39002e89..8f53293117 100644
--- a/models/server-process/src/index.ts
+++ b/models/server-process/src/index.ts
@@ -343,6 +343,10 @@ export function createModel (builder: Builder): void {
     func: serverProcess.transform.RemoveLast
   })
 
+  builder.mixin(process.function.EmptyValue, process.class.ProcessFunction, serverProcess.mixin.FuncImpl, {
+    func: serverProcess.transform.EmptyValue
+  })
+
   builder.mixin(process.function.EmptyArray, process.class.ProcessFunction, serverProcess.mixin.FuncImpl, {
     func: serverProcess.transform.EmptyArray
   })
diff --git a/plugins/card-resources/src/components/CardGridView.svelte b/plugins/card-resources/src/components/CardGridView.svelte
index 6fdad5b8a1..0c758c72d5 100644
--- a/plugins/card-resources/src/components/CardGridView.svelte
+++ b/plugins/card-resources/src/components/CardGridView.svelte
@@ -13,9 +13,10 @@
 // limitations under the License.
 -->
 <script lang="ts">
-  import type { Class, Doc, DocumentQuery, FindOptions, Ref, WithLookup } from '@hcengineering/core'
   import { type Card } from '@hcengineering/card'
+  import type { Class, Doc, DocumentQuery, FindOptions, Ref, WithLookup } from '@hcengineering/core'
   import { ActionContext, createQuery, getClient } from '@hcengineering/presentation'
+  import { Scroller } from '@hcengineering/ui'
   import { BuildModelKey, ViewOptions } from '@hcengineering/view'
   import { ListSelectionProvider, SelectDirection, buildConfigLookup, focusStore } from '@hcengineering/view-resources'
   import CardGridItem from './CardGridItem.svelte'
@@ -71,20 +72,22 @@
 
 <ActionContext context={{ mode: 'browser' }} />
 
-<div class="grid-container">
-  {#each objects as object, i}
-    {@const selected = selection === i}
-    <div class="grid-cell">
-      <CardGridItem
-        {object}
-        {selected}
-        on:obj-focus={(evt) => {
-          listProvider.updateFocus(evt.detail)
-        }}
-      />
-    </div>
-  {/each}
-</div>
+<Scroller fade={{ multipler: { top: 3, bottom: 2.5 } }} padding={'0 1rem'} checkForHeaders>
+  <div class="grid-container">
+    {#each objects as object, i}
+      {@const selected = selection === i}
+      <div class="grid-cell">
+        <CardGridItem
+          {object}
+          {selected}
+          on:obj-focus={(evt) => {
+            listProvider.updateFocus(evt.detail)
+          }}
+        />
+      </div>
+    {/each}
+  </div>
+</Scroller>
 
 <style lang="scss">
   .grid-container {
diff --git a/plugins/communication-resources/src/components/message/activity/ActivitySetAttributeViewer.svelte b/plugins/communication-resources/src/components/message/activity/ActivitySetAttributeViewer.svelte
index dc4cfc901a..85758955ab 100644
--- a/plugins/communication-resources/src/components/message/activity/ActivitySetAttributeViewer.svelte
+++ b/plugins/communication-resources/src/components/message/activity/ActivitySetAttributeViewer.svelte
@@ -31,7 +31,7 @@
   <span class="flex-presenter">
     <span class="mr-1"><Icon {icon} size="small" /></span>
     <Label label={communication.string.Unset} />
-    <span class="lower"><Label label={model.label} /></span>
+    <span class="lower ml-1"><Label label={model.label} /></span>
   </span>
 {:else}
   <ActivityAttributeValue {model} {icon} values={value}>
diff --git a/plugins/process-assets/lang/cs.json b/plugins/process-assets/lang/cs.json
index 8f39f477f5..5c292d2dfd 100644
--- a/plugins/process-assets/lang/cs.json
+++ b/plugins/process-assets/lang/cs.json
@@ -163,7 +163,8 @@
     "YearFromDate": "Rok z data",
     "MonthFromDate": "Měsíc z data",
     "DayFromDate": "Den z data",
-    "DateDifference": "Rozdíl dat"
+    "DateDifference": "Rozdíl dat",
+    "EmptyValue": "Prázdná hodnota"
   },
   "error": {
     "MethodNotFound": "Metoda nenalezena: {methodId}",
diff --git a/plugins/process-assets/lang/de.json b/plugins/process-assets/lang/de.json
index 7fef53bfdb..05a1a39f03 100644
--- a/plugins/process-assets/lang/de.json
+++ b/plugins/process-assets/lang/de.json
@@ -163,7 +163,8 @@
     "YearFromDate": "Jahr aus Datum",
     "MonthFromDate": "Monat aus Datum",
     "DayFromDate": "Tag aus Datum",
-    "DateDifference": "Datumsdifferenz"
+    "DateDifference": "Datumsdifferenz",
+    "EmptyValue": "Leerer Wert"
   },
   "error": {
     "MethodNotFound": "Methode nicht gefunden: {methodId}",
diff --git a/plugins/process-assets/lang/en.json b/plugins/process-assets/lang/en.json
index 63961b48f2..8c1829fddb 100644
--- a/plugins/process-assets/lang/en.json
+++ b/plugins/process-assets/lang/en.json
@@ -168,7 +168,8 @@
     "YearFromDate": "Year from date",
     "MonthFromDate": "Month from date",
     "DayFromDate": "Day from date",
-    "DateDifference": "Date difference"
+    "DateDifference": "Date difference",
+    "EmptyValue": "Empty value"
   },
   "error": {
     "MethodNotFound": "Method not found: {methodId}",
diff --git a/plugins/process-assets/lang/es.json b/plugins/process-assets/lang/es.json
index 5c0b3b47bc..7d6d098e49 100644
--- a/plugins/process-assets/lang/es.json
+++ b/plugins/process-assets/lang/es.json
@@ -168,7 +168,8 @@
     "YearFromDate": "Año desde fecha",
     "MonthFromDate": "Mes desde fecha",
     "DayFromDate": "Día desde fecha",
-    "DateDifference": "Diferencia de fechas"
+    "DateDifference": "Diferencia de fechas",
+    "EmptyValue": "Valor vacío"
   },
   "error": {
     "MethodNotFound": "Método no encontrado: {methodId}",
diff --git a/plugins/process-assets/lang/fr.json b/plugins/process-assets/lang/fr.json
index de441fc6cc..c87bec0baa 100644
--- a/plugins/process-assets/lang/fr.json
+++ b/plugins/process-assets/lang/fr.json
@@ -168,7 +168,8 @@
     "YearFromDate": "Année depuis date",
     "MonthFromDate": "Mois depuis date",
     "DayFromDate": "Jour depuis date",
-    "DateDifference": "Différence de dates"
+    "DateDifference": "Différence de dates",
+    "EmptyValue": "Valeur vide"
   },
   "error": {
     "MethodNotFound": "Méthode introuvable : {methodId}",
diff --git a/plugins/process-assets/lang/it.json b/plugins/process-assets/lang/it.json
index edfa5e14ca..496731ee37 100644
--- a/plugins/process-assets/lang/it.json
+++ b/plugins/process-assets/lang/it.json
@@ -168,7 +168,8 @@
     "YearFromDate": "Anno da data",
     "MonthFromDate": "Mese da data",
     "DayFromDate": "Giorno da data",
-    "DateDifference": "Differenza di date"
+    "DateDifference": "Differenza di date",
+    "EmptyValue": "Valore vuoto"
   },
   "error": {
     "MethodNotFound": "Metodo non trovato: {methodId}",
diff --git a/plugins/process-assets/lang/ja.json b/plugins/process-assets/lang/ja.json
index 34fa8c7487..80e895f8cc 100644
--- a/plugins/process-assets/lang/ja.json
+++ b/plugins/process-assets/lang/ja.json
@@ -167,7 +167,8 @@
     "YearFromDate": "日付から年",
     "MonthFromDate": "日付から月",
     "DayFromDate": "日付から日",
-    "DateDifference": "日付の差"
+    "DateDifference": "日付の差",
+    "EmptyValue": "空の値"
   },
   "error": {
     "MethodNotFound": "メソッドが見つかりません: {methodId}",
diff --git a/plugins/process-assets/lang/pt-br.json b/plugins/process-assets/lang/pt-br.json
index c3d676f3dd..c9b7d44cad 100644
--- a/plugins/process-assets/lang/pt-br.json
+++ b/plugins/process-assets/lang/pt-br.json
@@ -156,7 +156,8 @@
     "YearFromDate": "Ano de data",
     "MonthFromDate": "Mês de data",
     "DayFromDate": "Dia de data",
-    "DateDifference": "Diferença de datas"
+    "DateDifference": "Diferença de datas",
+    "EmptyValue": "Valor vazio"
   },
   "error": {
     "MethodNotFound": "Método não encontrado: {methodId}",
diff --git a/plugins/process-assets/lang/pt.json b/plugins/process-assets/lang/pt.json
index e6abcac702..d0fbc58cfa 100644
--- a/plugins/process-assets/lang/pt.json
+++ b/plugins/process-assets/lang/pt.json
@@ -168,7 +168,8 @@
     "YearFromDate": "Ano de data",
     "MonthFromDate": "Mês de data",
     "DayFromDate": "Dia de data",
-    "DateDifference": "Diferença de datas"
+    "DateDifference": "Diferença de datas",
+    "EmptyValue": "Valor vazio"
   },
   "error": {
     "MethodNotFound": "Método não encontrado: {methodId}",
diff --git a/plugins/process-assets/lang/ru.json b/plugins/process-assets/lang/ru.json
index a3432c1c6e..055a25df36 100644
--- a/plugins/process-assets/lang/ru.json
+++ b/plugins/process-assets/lang/ru.json
@@ -168,7 +168,8 @@
     "YearFromDate": "Год из даты",
     "MonthFromDate": "Месяц из даты",
     "DayFromDate": "День из даты",
-    "DateDifference": "Разница дат"
+    "DateDifference": "Разница дат",
+    "EmptyValue": "Пустое значение"
   },
   "error": {
     "MethodNotFound": "Метод не найден: {methodId}",
diff --git a/plugins/process-assets/lang/tr.json b/plugins/process-assets/lang/tr.json
index 5cae8eb743..7d85fdd7b3 100644
--- a/plugins/process-assets/lang/tr.json
+++ b/plugins/process-assets/lang/tr.json
@@ -163,7 +163,8 @@
     "YearFromDate": "Tarihten yıl",
     "MonthFromDate": "Tarihten ay",
     "DayFromDate": "Tarihten gün",
-    "DateDifference": "Tarih farkı"
+    "DateDifference": "Tarih farkı",
+    "EmptyValue": "Boş değer"
   },
   "error": {
     "MethodNotFound": "Metod bulunamadı: {methodId}",
diff --git a/plugins/process-assets/lang/zh.json b/plugins/process-assets/lang/zh.json
index cff0efcaa5..736fed7612 100644
--- a/plugins/process-assets/lang/zh.json
+++ b/plugins/process-assets/lang/zh.json
@@ -168,7 +168,8 @@
     "YearFromDate": "日期到年份",
     "MonthFromDate": "日期到月份",
     "DayFromDate": "日期到天",
-    "DateDifference": "日期差异"
+    "DateDifference": "日期差异",
+    "EmptyValue": "空值"
   },
   "error": {
     "MethodNotFound": "找不到方法：{methodId}",
diff --git a/plugins/process-resources/src/plugin.ts b/plugins/process-resources/src/plugin.ts
index 74263da445..1d1104fea0 100644
--- a/plugins/process-resources/src/plugin.ts
+++ b/plugins/process-resources/src/plugin.ts
@@ -233,6 +233,7 @@ export default mergeIds(processId, process, {
     For: '' as IntlString,
     Attribute: '' as IntlString,
     Context: '' as IntlString,
+    EmptyValue: '' as IntlString,
     EmptyArray: '' as IntlString,
     ExecutionInitiator: '' as IntlString,
     ExecutionStarted: '' as IntlString,
diff --git a/plugins/process-resources/src/utils.ts b/plugins/process-resources/src/utils.ts
index db0553edb9..059289cecd 100644
--- a/plugins/process-resources/src/utils.ts
+++ b/plugins/process-resources/src/utils.ts
@@ -331,7 +331,7 @@ function getContextFunctions (
         break
       }
       default: {
-        if (hierarchy.isDerived(func.of, target)) {
+        if (hierarchy.isDerived(func.of, target) || func.of === core.class.TypeAny) {
           matched.push(func._id)
         }
       }
diff --git a/plugins/process/src/index.ts b/plugins/process/src/index.ts
index d25283d2f5..d735a5c9af 100644
--- a/plugins/process/src/index.ts
+++ b/plugins/process/src/index.ts
@@ -373,6 +373,7 @@ export default plugin(processId, {
     ExecutionStarted: '' as Ref<ProcessFunction>,
     ExecutionEmployeeInitiator: '' as Ref<ProcessFunction>,
     ExecutionInitiator: '' as Ref<ProcessFunction>,
+    EmptyValue: '' as Ref<ProcessFunction>,
     EmptyArray: '' as Ref<ProcessFunction>,
     CurrentDate: '' as Ref<ProcessFunction>,
     StringFromNumber: '' as Ref<ProcessFunction>,
diff --git a/plugins/view-resources/src/components/StringPresenter.svelte b/plugins/view-resources/src/components/StringPresenter.svelte
index 495547929e..c246094dfc 100644
--- a/plugins/view-resources/src/components/StringPresenter.svelte
+++ b/plugins/view-resources/src/components/StringPresenter.svelte
@@ -17,14 +17,14 @@
   import { getEmbeddedLabel } from '@hcengineering/platform'
   import { LabelAndProps, LinkWrapper, tooltip } from '@hcengineering/ui'
 
-  export let value: string | string[] | undefined
+  export let value: string | string[] | null | undefined
   export let accent: boolean = false
   export let oneLine: boolean = false
 
   $: tooltipParams = getTooltip(value)
 
-  function getTooltip (value: string | string[] | undefined): LabelAndProps | undefined {
-    if (value === undefined) return
+  function getTooltip (value: string | string[] | null | undefined): LabelAndProps | undefined {
+    if (value == null) return
     let str = ''
     if (Array.isArray(value)) {
       str = value.reduce((acc, curr, i) => (acc += i === 0 ? curr : ` ${curr}`), '')
diff --git a/server-plugins/process-resources/src/index.ts b/server-plugins/process-resources/src/index.ts
index 5067146971..9763cddf15 100644
--- a/server-plugins/process-resources/src/index.ts
+++ b/server-plugins/process-resources/src/index.ts
@@ -94,6 +94,7 @@ import {
   DayFromDate,
   Divide,
   EmptyArray,
+  EmptyValue,
   ExecutionInitiator,
   ExecutionStarted,
   Filter,
@@ -680,6 +681,7 @@ export default async () => ({
     RemoveFirst,
     RemoveLast,
     EmptyArray,
+    EmptyValue,
     ExecutionInitiator,
     ExecutionStarted,
     FirstMatchValue,
diff --git a/server-plugins/process-resources/src/transform.ts b/server-plugins/process-resources/src/transform.ts
index 5b28499b8d..ed24476610 100644
--- a/server-plugins/process-resources/src/transform.ts
+++ b/server-plugins/process-resources/src/transform.ts
@@ -463,6 +463,10 @@ export async function CurrentDate (): Promise<Timestamp> {
   return Date.now()
 }
 
+export function EmptyValue (): null {
+  return null
+}
+
 export function EmptyArray (): any[] {
   return []
 }
diff --git a/server-plugins/process-resources/src/utils.ts b/server-plugins/process-resources/src/utils.ts
index e26f9996ca..bee58d3d97 100644
--- a/server-plugins/process-resources/src/utils.ts
+++ b/server-plugins/process-resources/src/utils.ts
@@ -247,12 +247,12 @@ async function getFunctionValue (
     const funcImpl = control.client.getHierarchy().as(transform, serverProcess.mixin.FuncImpl)
     const f = await getResource(funcImpl.func)
     const val = await f(res, {}, control, execution)
-    if (val == null) {
+    if (val == null && context.func !== process.function.EmptyValue) {
       throw processError(process.error.EmptyFunctionResult, {}, { func: func.label })
     }
     return val
   }
-  if (res == null) {
+  if (res == null && context.func !== process.function.EmptyValue) {
     throw processError(process.error.EmptyFunctionResult, {}, { func: func.label })
   }
   return res
diff --git a/server-plugins/process/src/index.ts b/server-plugins/process/src/index.ts
index 673205e142..48214547c5 100644
--- a/server-plugins/process/src/index.ts
+++ b/server-plugins/process/src/index.ts
@@ -109,6 +109,7 @@ export default plugin(serverProcessId, {
     RemoveLast: '' as Resource<TransformFunc>,
     CurrentUser: '' as Resource<TransformFunc>,
     CurrentDate: '' as Resource<TransformFunc>,
+    EmptyValue: '' as Resource<TransformFunc>,
     EmptyArray: '' as Resource<TransformFunc>,
     Filter: '' as Resource<TransformFunc>,
     FirstMatchValue: '' as Resource<TransformFunc>,