Fixing some issues with updating rows with attachments, there were some UI bugs that had been raised (undefined being displayed) and the uploading from a URL was not working as expected, due to the stream not matching the expected format of the S3 SDK - this has been fixed by converting the stream to a true readable stream with .

packages/backend-core/src/objectStore/utils.ts

@@ -9,6 +9,9 @@ import {
   AutomationAttachmentContent,
   BucketedContent,
 } from "@budibase/types"
+import stream from "stream"
+import streamWeb from "node:stream/web"
+
 /****************************************************
  *      NOTE: When adding a new bucket - name       *
  *     sure that S3 usages (like budibase-infra)    *
@@ -53,12 +56,10 @@ export const bucketTTLConfig = (
     Rules: [lifecycleRule],
   }
 
-  const params = {
+  return {
     Bucket: bucketName,
     LifecycleConfiguration: lifecycleConfiguration,
   }
-
-  return params
 }
 
 async function processUrlAttachment(
@@ -71,7 +72,7 @@ async function processUrlAttachment(
   const fallbackFilename = path.basename(new URL(attachment.url).pathname)
   return {
     filename: attachment.filename || fallbackFilename,
-    content: response.body,
+    content: stream.Readable.fromWeb(response.body as streamWeb.ReadableStream),
   }
 }
 

packages/builder/src/components/automation/SetupPanel/AutomationBlockSetup.svelte

@@ -374,6 +374,16 @@
     return `${value.title || (key === "row" ? "Table" : key)} ${requiredSuffix}`
   }
 
+  function handleAttachmentParams(keyValueObj) {
+    let params = {}
+    if (keyValueObj?.length) {
+      for (let param of keyValueObj) {
+        params[param.url] = param.filename
+      }
+    }
+    return params
+  }
+
   onMount(async () => {
     try {
       await environment.loadVariables()
@@ -381,15 +391,6 @@
       console.error(error)
     }
   })
-  const handleAttachmentParams = keyValuObj => {
-    let params = {}
-    if (keyValuObj?.length) {
-      for (let param of keyValuObj) {
-        params[param.url] = param.filename
-      }
-    }
-    return params
-  }
 </script>
 
 <div class="fields">

packages/builder/src/components/automation/SetupPanel/RowSelectorTypes.svelte

@@ -25,21 +25,21 @@
     return !!schema.constraints?.inclusion?.length
   }
 
-  const handleAttachmentParams = keyValuObj => {
+  function handleAttachmentParams(keyValueObj) {
     let params = {}
 
     if (
       schema.type === FieldType.ATTACHMENT_SINGLE &&
-      Object.keys(keyValuObj).length === 0
+      Object.keys(keyValueObj).length === 0
     ) {
       return []
     }
-    if (!Array.isArray(keyValuObj)) {
-      keyValuObj = [keyValuObj]
+    if (!Array.isArray(keyValueObj) && keyValueObj) {
+      keyValueObj = [keyValueObj]
     }
 
-    if (keyValuObj.length) {
-      for (let param of keyValuObj) {
+    if (keyValueObj.length) {
+      for (let param of keyValueObj) {
         params[param.url] = param.filename
       }
     }

packages/server/src/automations/automationUtils.ts

@@ -163,7 +163,7 @@ async function generateAttachmentRow(attachment: AutomationAttachment) {
 
   try {
     const { filename } = attachment
-    const extension = path.extname(filename)
+    const extension = path.extname(filename).replaceAll(".", "")
     const attachmentResult = await objectStore.processAutomationAttachment(
       attachment
     )
@@ -183,7 +183,7 @@ async function generateAttachmentRow(attachment: AutomationAttachment) {
     return {
       size,
       name: filename,
-      extension,
+      extension: extension,
       key: s3Key,
     }
   } catch (error) {

packages/server/src/automations/steps/updateRow.ts

@@ -94,18 +94,6 @@ export async function run({ inputs, appId, emitter }: AutomationStepInput) {
     }
   }
 
-  // have to clean up the row, remove the table from it
-  const ctx: any = buildCtx(appId, emitter, {
-    body: {
-      ...inputs.row,
-      _id: inputs.rowId,
-    },
-    params: {
-      rowId: inputs.rowId,
-      tableId: tableId,
-    },
-  })
-
   try {
     if (tableId) {
       inputs.row = await automationUtils.cleanUpRow(
@@ -118,6 +106,17 @@ export async function run({ inputs, appId, emitter }: AutomationStepInput) {
         inputs.row
       )
     }
+    // have to clean up the row, remove the table from it
+    const ctx: any = buildCtx(appId, emitter, {
+      body: {
+        ...inputs.row,
+        _id: inputs.rowId,
+      },
+      params: {
+        rowId: inputs.rowId,
+        tableId: tableId,
+      },
+    })
     await rowController.patch(ctx)
     return {
       row: ctx.body,

packages/server/src/utilities/rowProcessor/attachments.ts

@@ -1,6 +1,12 @@
 import { ObjectStoreBuckets } from "../../constants"
 import { context, db as dbCore, objectStore } from "@budibase/backend-core"
-import { FieldType, RenameColumn, Row, Table } from "@budibase/types"
+import {
+  FieldType,
+  RenameColumn,
+  Row,
+  RowAttachment,
+  Table,
+} from "@budibase/types"
 
 export class AttachmentCleanup {
   static async coreCleanup(fileListFn: () => string[]): Promise<void> {
@@ -21,7 +27,7 @@ export class AttachmentCleanup {
 
   private static extractAttachmentKeys(
     type: FieldType,
-    rowData: any
+    rowData: RowAttachment[] | RowAttachment
   ): string[] {
     if (
       type !== FieldType.ATTACHMENTS &&
@@ -34,10 +40,15 @@ export class AttachmentCleanup {
       return []
     }
 
-    if (type === FieldType.ATTACHMENTS) {
-      return rowData.map((attachment: any) => attachment.key)
+    if (type === FieldType.ATTACHMENTS && Array.isArray(rowData)) {
+      return rowData
+        .filter(attachment => attachment.key)
+        .map(attachment => attachment.key)
+    } else if ("key" in rowData) {
+      return [rowData.key]
     }
-    return [rowData.key]
+
+    return []
   }
 
   private static async tableChange(

packages/server/src/utilities/rowProcessor/index.ts

@@ -1,11 +1,11 @@
 import * as linkRows from "../../db/linkedRows"
-import { processFormulas, fixAutoColumnSubType } from "./utils"
+import { fixAutoColumnSubType, processFormulas } from "./utils"
 import { objectStore, utils } from "@budibase/backend-core"
 import { InternalTables } from "../../db/utils"
 import { TYPE_TRANSFORM_MAP } from "./map"
 import {
-  FieldType,
   AutoFieldSubType,
+  FieldType,
   Row,
   RowAttachment,
   Table,
@@ -221,27 +221,31 @@ export async function outputProcessing<T extends Row[] | Row>(
     opts.squash = true
   }
 
-  // process complex types: attachements, bb references...
+  // process complex types: attachments, bb references...
   for (let [property, column] of Object.entries(table.schema)) {
-    if (column.type === FieldType.ATTACHMENTS) {
+    if (
+      column.type === FieldType.ATTACHMENTS ||
+      column.type === FieldType.ATTACHMENT_SINGLE
+    ) {
       for (let row of enriched) {
-        if (row[property] == null || !Array.isArray(row[property])) {
+        if (row[property] == null) {
           continue
         }
-        row[property].forEach((attachment: RowAttachment) => {
-          if (!attachment.url) {
+        const process = (attachment: RowAttachment) => {
+          if (!attachment.url && attachment.key) {
             attachment.url = objectStore.getAppFileUrl(attachment.key)
           }
-        })
-      }
-    } else if (column.type === FieldType.ATTACHMENT_SINGLE) {
-      for (let row of enriched) {
-        if (!row[property] || Object.keys(row[property]).length === 0) {
-          continue
+          return attachment
         }
-
-        if (!row[property].url) {
-          row[property].url = objectStore.getAppFileUrl(row[property].key)
+        if (typeof row[property] === "string") {
+          row[property] = JSON.parse(row[property])
+        }
+        if (Array.isArray(row[property])) {
+          row[property].forEach((attachment: RowAttachment) => {
+            process(attachment)
+          })
+        } else {
+          process(row[property])
         }
       }
     } else if (