feat: restore page version

server/graph/resolvers/page.js

@@ -385,7 +385,7 @@ module.exports = {
       try {
         const page = await WIKI.models.pages.query().findById(args.id)
         if (!page) {
-          throw new Error('Invalid Page Id')
+          throw new WIKI.Error.PageNotFound()
         }
         await WIKI.models.pages.renderPage(page)
         return {
@@ -394,6 +394,42 @@ module.exports = {
       } catch (err) {
         return graphHelper.generateError(err)
       }
+    },
+    /**
+     * RESTORE PAGE VERSION
+     */
+    async restore (obj, args, context) {
+      try {
+        const page = await WIKI.models.pages.query().select('path', 'localeCode').findById(args.pageId)
+        if (!page) {
+          throw new WIKI.Error.PageNotFound()
+        }
+
+        if (!WIKI.auth.checkAccess(context.req.user, ['write:pages'], {
+          path: page.path,
+          locale: page.localeCode
+        })) {
+          throw new WIKI.Error.PageRestoreForbidden()
+        }
+
+        const targetVersion = await WIKI.models.pageHistory.getVersion({ pageId: args.pageId, versionId: args.versionId })
+        if (!targetVersion) {
+          throw new WIKI.Error.PageNotFound()
+        }
+
+        await WIKI.models.pages.updatePage({
+          ...targetVersion,
+          id: targetVersion.pageId,
+          user: context.req.user,
+          action: 'restored'
+        })
+
+        return {
+          responseResult: graphHelper.generateSuccess('Page version restored successfully.')
+        }
+      } catch (err) {
+        return graphHelper.generateError(err)
+      }
     }
   },
   Page: {

server/graph/schemas/page.graphql

@@ -129,6 +129,11 @@ type PageMutation {
   render(
     id: Int!
   ): DefaultResponse @auth(requires: ["manage:system"])
+
+  restore(
+    pageId: Int!
+    versionId: Int!
+  ): DefaultResponse @auth(requires: ["write:pages", "manage:pages", "manage:system"])
 }
 
 # -----------------------------------------------

server/helpers/error.js

@@ -153,6 +153,10 @@ module.exports = {
     message: 'Destination page path already exists.',
     code: 6006
   }),
+  PageRestoreForbidden: CustomError('PageRestoreForbidden', {
+    message: 'You are not authorized to restore this page version.',
+    code: 6011
+  }),
   PageUpdateForbidden: CustomError('PageUpdateForbidden', {
     message: 'You are not authorized to update this page.',
     code: 6009

server/models/pages.js

@@ -326,7 +326,8 @@ module.exports = class Page extends Model {
     await WIKI.models.pageHistory.addVersion({
       ...ogPage,
       isPublished: ogPage.isPublished === true || ogPage.isPublished === 1,
-      action: 'updated'
+      action: opts.action ? opts.action : 'updated',
+      versionDate: ogPage.updatedAt
     })
 
     // -> Update page
@@ -422,7 +423,8 @@ module.exports = class Page extends Model {
     // -> Create version snapshot
     await WIKI.models.pageHistory.addVersion({
       ...page,
-      action: 'moved'
+      action: 'moved',
+      versionDate: page.updatedAt
     })
 
     const destinationHash = pageHelper.generateHash({ path: opts.destinationPath, locale: opts.destinationLocale, privateNS: opts.isPrivate ? 'TODO' : '' })
@@ -503,7 +505,8 @@ module.exports = class Page extends Model {
     // -> Create version snapshot
     await WIKI.models.pageHistory.addVersion({
       ...page,
-      action: 'deleted'
+      action: 'deleted',
+      versionDate: page.updatedAt
     })
 
     // -> Delete page