fix: move form data retrieval logic to client (#5411)

* fix: only execute onChange if form modified

* fix: move document loading logic from RSC to DocumentInfoProvider

* fix: make it work for globals

* chore: remove unnecessary diffs

---------

Co-authored-by: Jarrod Flesch <jarrodmflesch@gmail.com>

packages/next/src/views/Document/index.tsx

@@ -67,10 +67,11 @@ export const Document: React.FC<AdminViewProps> = async ({
   let DefaultView: EditViewComponent
   let ErrorView: AdminViewComponent = NotFoundView
 
+  /**
   let data: DocumentType
-  let docPermissions: DocumentPermissions
   let preferencesKey: string
-  let fields: Field[]
+  let fields: Field[] **/
+  let docPermissions: DocumentPermissions
   let hasSavePermission: boolean
   let apiURL: string
   let action: string
@@ -88,7 +89,8 @@ export const Document: React.FC<AdminViewProps> = async ({
       return <NotFoundClient />
     }
 
-    fields = collectionConfig.fields
+    /**
+    fields = collectionConfig.fields **/
     action = `${serverURL}${apiRoute}/${collectionSlug}${isEditing ? `/${id}` : ''}`
 
     hasSavePermission =
@@ -120,6 +122,7 @@ export const Document: React.FC<AdminViewProps> = async ({
       return <ErrorView initPageResult={initPageResult} searchParams={searchParams} />
     }
 
+    /**
     if (id) {
       try {
         data = await payload.findByID({
@@ -140,13 +143,15 @@ export const Document: React.FC<AdminViewProps> = async ({
 
       preferencesKey = `collection-${collectionSlug}-${id}`
     }
+    **/
   }
 
   if (globalConfig) {
     docPermissions = permissions?.globals?.[globalSlug]
-    fields = globalConfig.fields
     hasSavePermission = isEditing && docPermissions?.update?.permission
     action = `${serverURL}${apiRoute}/globals/${globalSlug}`
+    /**
+    fields = globalConfig.fields **/
 
     apiURL = `${serverURL}${apiRoute}/${globalSlug}?locale=${locale.code}${
       globalConfig.versions?.drafts ? '&draft=true' : ''
@@ -172,6 +177,7 @@ export const Document: React.FC<AdminViewProps> = async ({
         return <ErrorView initPageResult={initPageResult} searchParams={searchParams} />
       }
 
+      /**
       try {
         data = await payload.findGlobal({
           slug: globalSlug,
@@ -188,10 +194,11 @@ export const Document: React.FC<AdminViewProps> = async ({
         return <NotFoundClient />
       }
 
-      preferencesKey = `global-${globalSlug}`
+      preferencesKey = `global-${globalSlug}` **/
     }
   }
 
+  /**
    const { docs: [{ value: docPreferences } = { value: null }] = [] } = (await payload.find({
    collection: 'payload-preferences',
    depth: 0,
@@ -211,6 +218,7 @@ export const Document: React.FC<AdminViewProps> = async ({
    preferences: docPreferences,
    req,
    })
+   */
 
   const viewComponentProps: ServerSideEditViewProps = {
     initPageResult,
@@ -228,9 +236,9 @@ export const Document: React.FC<AdminViewProps> = async ({
       globalSlug={globalConfig?.slug}
       hasSavePermission={hasSavePermission}
       id={id}
+      /**
       initialData={data}
       initialState={initialState}
-      isEditing={isEditing}
       title={formatDocTitle({
         collectionConfig,
         data,
@@ -238,7 +246,8 @@ export const Document: React.FC<AdminViewProps> = async ({
         fallback: id?.toString(),
         globalConfig,
         i18n,
-      })}
+      })} **/
+      isEditing={isEditing}
     >
       {!ViewOverride && (
         <DocumentHeader

packages/ui/src/forms/Form/index.tsx

@@ -546,7 +546,7 @@ export const Form: React.FC<FormProps> = (props) => {
         }
       }
 
-      void executeOnChange() // eslint-disable-line @typescript-eslint/no-floating-promises
+      if (modified) void executeOnChange()
     },
     150,
     [fields, dispatchFields, onChange],

packages/ui/src/providers/DocumentInfo/index.tsx

@@ -1,10 +1,14 @@
 'use client'
 import type { PaginatedDocs, TypeWithVersion } from 'payload/database'
-import type { TypeWithTimestamps } from 'payload/types'
+import type { FormState, TypeWithTimestamps } from 'payload/types'
 import type { DocumentPermissions, DocumentPreferences, TypeWithID, Where } from 'payload/types'
 
+import { LoadingOverlay } from '@payloadcms/ui/elements/Loading'
+import usePayloadAPI from '@payloadcms/ui/hooks/usePayloadAPI'
+import { formatDocTitle } from '@payloadcms/ui/utilities/formatDocTitle'
+import { getFormState } from '@payloadcms/ui/utilities/getFormState'
 import qs from 'qs'
-import React, { createContext, useCallback, useContext, useEffect, useState } from 'react'
+import React, { createContext, useCallback, useContext, useEffect, useRef, useState } from 'react'
 
 import type { DocumentInfoContext, DocumentInfoProps } from './types.js'
 
@@ -24,12 +28,15 @@ export const DocumentInfoProvider: React.FC<
   DocumentInfoProps & {
     children: React.ReactNode
   }
-> = ({ children, ...props }) => {
-  const [documentTitle, setDocumentTitle] = useState(props.title)
+> = ({ children, initialState: initialStateFromProps, title: titleFromProps, ...props }) => {
+  const [documentTitle, setDocumentTitle] = useState(titleFromProps)
+
+  const [initialState, setInitialState] = useState<FormState>(initialStateFromProps)
 
   const { id, collectionSlug, globalSlug } = props
 
   const {
+    admin: { dateFormat },
     collections,
     globals,
     routes: { api },
@@ -73,6 +80,66 @@ export const DocumentInfoProvider: React.FC<
     }
   }
 
+  /**
+   *
+   *
+   * Fetching state from Server on the Client. Should be moved back to Document/index.tsx once next allows us to disable the router cache
+   *
+   *
+   */
+  const hasInitializedState = useRef(!!initialStateFromProps)
+
+  // no need to an additional requests when creating new documents
+  const isEditing = Boolean(id)
+
+  const [{ data, isError, isLoading: isLoadingDocument }] = usePayloadAPI(
+    !hasInitializedState.current
+      ? `${baseURL}/${globalSlug ? 'globals/' : ''}${slug}${collectionSlug ? `/${id}` : ''}`
+      : null,
+    { initialParams: { depth: 0, draft: 'true', 'fallback-locale': 'null' } },
+  )
+
+  useEffect(() => {
+    if (!hasInitializedState.current && data) {
+      const getInitialState = async () => {
+        let docPreferences: DocumentPreferences = { fields: {} }
+
+        if (id) {
+          docPreferences = await getPreference(
+            `${id ? 'collection' : 'global'}-${collectionSlug}-${id}`,
+          )
+        }
+
+        const result = await getFormState({
+          apiRoute: api,
+          body: {
+            id,
+            collectionSlug,
+            data: data || {},
+            docPreferences,
+            globalSlug,
+            operation: isEditing ? 'update' : 'create',
+            schemaPath: collectionSlug || globalSlug,
+          },
+          serverURL,
+        })
+
+        setInitialState(result)
+        hasInitializedState.current = true
+      }
+
+      void getInitialState()
+    }
+  }, [api, data, isEditing, collectionSlug, serverURL, id, getPreference, globalSlug])
+
+  /**
+   *
+   *
+   * Fetching state from Server on the Client DONE
+   *
+   *
+   */
+
   const getVersions = useCallback(async () => {
     let versionFetchURL
     let publishedFetchURL
@@ -264,8 +331,21 @@ export const DocumentInfoProvider: React.FC<
   }, [getVersions])
 
   useEffect(() => {
-    setDocumentTitle(props.title)
-  }, [props.title])
+    if (titleFromProps) {
+      setDocumentTitle(titleFromProps)
+    } else {
+      setDocumentTitle(
+        formatDocTitle({
+          collectionConfig,
+          data,
+          dateFormat,
+          fallback: id?.toString(),
+          globalConfig,
+          i18n,
+        }),
+      )
+    }
+  }, [collectionConfig, data, dateFormat, i18n, titleFromProps, id, globalConfig])
 
   useEffect(() => {
     const loadDocPermissions = async () => {
@@ -292,6 +372,12 @@ export const DocumentInfoProvider: React.FC<
     globalSlug,
   ])
 
+  if (!initialState || isLoadingDocument) {
+    return <LoadingOverlay />
+  }
+
+  if (isError) return null
+
   const value: DocumentInfoContext = {
     ...props,
     docConfig,
@@ -300,6 +386,7 @@ export const DocumentInfoProvider: React.FC<
     getDocPreferences,
     getVersions,
     hasSavePermission,
+    initialState,
     onSave: props.onSave,
     publishedDoc,
     setDocFieldPreferences,

test/auth/config.ts

@@ -209,6 +209,10 @@ export default buildConfigWithDefaults({
           type: 'relationship',
           relationTo: 'users',
         },
+        {
+          name: 'text',
+          type: 'text',
+        },
       ],
     },
   ],

test/auth/e2e.spec.ts

@@ -42,7 +42,7 @@ describe('auth', () => {
     page = await context.newPage()
     initPageConsoleErrorCatch(page)
 
-    //await delayNetwork({ context, page, delay: 'Fast 3G' })
+    //await delayNetwork({ context, page, delay: 'Slow 4G' })
 
     await login({
       page,

test/helpers.ts

@@ -25,12 +25,12 @@ const networkConditions = {
   'Fast 3G': {
     download: ((1.6 * 1000 * 1000) / 8) * 0.9,
     upload: ((750 * 1000) / 8) * 0.9,
-    latency: 150 * 3.75,
+    latency: 1000,
   },
   'Slow 4G': {
     download: ((4 * 1000 * 1000) / 8) * 0.8,
     upload: ((3 * 1000 * 1000) / 8) * 0.8,
-    latency: 20 * 3.75,
+    latency: 1000,
   },
 }