Fix template error when comment review doesn't exist

models/fixtures/comment.yml

@@ -75,3 +75,11 @@
   content: "comment in private pository"
   created_unix: 946684811
   updated_unix: 946684811
+
+-
+  id: 9
+  type: 22 # review
+  poster_id: 2
+  issue_id: 2 # in repo_id 1
+  review_id: 20
+  created_unix: 946684810

models/fixtures/review.yml

@@ -170,3 +170,12 @@
   content: "review request for user15"
   updated_unix: 946684835
   created_unix: 946684835
+
+-
+  id: 20
+  type: 22
+  reviewer_id: 1
+  issue_id: 2
+  content: "Review Comment"
+  updated_unix: 946684810
+  created_unix: 946684810

routers/web/repo/pull_review_test.go

@@ -4,6 +4,7 @@
 package repo
 
 import (
+	"net/http"
 	"net/http/httptest"
 	"testing"
 
@@ -73,4 +74,20 @@ func TestRenderConversation(t *testing.T) {
 		renderConversation(ctx, preparedComment, "timeline")
 		assert.Contains(t, resp.Body.String(), `<div id="code-comments-`)
 	})
+	run("diff non-existing review", func(t *testing.T, ctx *context.Context, resp *httptest.ResponseRecorder) {
+		err := db.TruncateBeans(db.DefaultContext, &issues_model.Review{})
+		assert.NoError(t, err)
+		ctx.Data["ShowOutdatedComments"] = true
+		renderConversation(ctx, preparedComment, "diff")
+		assert.Equal(t, http.StatusOK, resp.Code)
+		assert.NotContains(t, resp.Body.String(), `status-page-500`)
+	})
+	run("timeline non-existing review", func(t *testing.T, ctx *context.Context, resp *httptest.ResponseRecorder) {
+		err := db.TruncateBeans(db.DefaultContext, &issues_model.Review{})
+		assert.NoError(t, err)
+		ctx.Data["ShowOutdatedComments"] = true
+		renderConversation(ctx, preparedComment, "timeline")
+		assert.Equal(t, http.StatusOK, resp.Code)
+		assert.NotContains(t, resp.Body.String(), `status-page-500`)
+	})
 }

templates/repo/diff/comments.tmpl

@@ -37,7 +37,7 @@
 						{{ctx.Locale.Tr "repo.issues.review.outdated"}}
 					</a>
 				{{end}}
-				{{if and .Review}}
+				{{if .Review}}
 					{{if eq .Review.Type 0}}
 						<div class="ui label basic small yellow pending-label" data-tooltip-content="{{ctx.Locale.Tr "repo.issues.review.pending.tooltip" (ctx.Locale.Tr "repo.diff.review") (ctx.Locale.Tr "repo.diff.review.approve") (ctx.Locale.Tr "repo.diff.review.comment") (ctx.Locale.Tr "repo.diff.review.reject")}}">
 						{{ctx.Locale.Tr "repo.issues.review.pending"}}

templates/repo/diff/conversation.tmpl

@@ -1,9 +1,12 @@
-{{$resolved := (index .comments 0).IsResolved}}
-{{$invalid := (index .comments 0).Invalidated}}
-{{$resolveDoer := (index .comments 0).ResolveDoer}}
-{{$isNotPending := (not (eq (index .comments 0).Review.Type 0))}}
-{{$referenceUrl := printf "%s#%s" $.Issue.Link (index .comments 0).HashTag}}
-<div class="conversation-holder" data-path="{{(index .comments 0).TreePath}}" data-side="{{if lt (index .comments 0).Line 0}}left{{else}}right{{end}}" data-idx="{{(index .comments 0).UnsignedLine}}">
+{{if len .comments}}
+	{{$comment := index .comments 0}}
+	{{$resolved := $comment.IsResolved}}
+	{{$invalid := $comment.Invalidated}}
+	{{$resolveDoer := $comment.ResolveDoer}}
+	{{$hasReview := and $comment.Review}}
+	{{$isReviewPending := and $hasReview (eq $comment.Review.Type 0)}}
+	{{$referenceUrl := printf "%s#%s" $.Issue.Link $comment.HashTag}}
+	<div class="conversation-holder" data-path="{{$comment.TreePath}}" data-side="{{if lt $comment.Line 0}}left{{else}}right{{end}}" data-idx="{{$comment.UnsignedLine}}">
 		{{if $resolved}}
 			<div class="ui attached header resolved-placeholder gt-df gt-ac gt-sb">
 				<div class="ui grey text gt-df gt-ac gt-fw gt-gap-2">
@@ -20,18 +23,18 @@
 					{{end}}
 				</div>
 				<div class="gt-df gt-ac gt-gap-3">
-				<button id="show-outdated-{{(index .comments 0).ID}}" data-comment="{{(index .comments 0).ID}}" class="ui tiny labeled button show-outdated gt-df gt-ac">
+					<button id="show-outdated-{{$comment.ID}}" data-comment="{{$comment.ID}}" class="ui tiny labeled button show-outdated gt-df gt-ac">
 						{{svg "octicon-unfold" 16 "gt-mr-3"}}
 						{{ctx.Locale.Tr "repo.issues.review.show_resolved"}}
 					</button>
-				<button id="hide-outdated-{{(index .comments 0).ID}}" data-comment="{{(index .comments 0).ID}}" class="ui tiny labeled button hide-outdated gt-df gt-ac gt-hidden">
+					<button id="hide-outdated-{{$comment.ID}}" data-comment="{{$comment.ID}}" class="ui tiny labeled button hide-outdated gt-df gt-ac gt-hidden">
 						{{svg "octicon-fold" 16 "gt-mr-3"}}
 						{{ctx.Locale.Tr "repo.issues.review.hide_resolved"}}
 					</button>
 				</div>
 			</div>
 		{{end}}
-	<div id="code-comments-{{(index  .comments 0).ID}}" class="field comment-code-cloud {{if $resolved}}gt-hidden{{end}}">
+		<div id="code-comments-{{$comment.ID}}" class="field comment-code-cloud {{if $resolved}}gt-hidden{{end}}">
 			<div class="comment-list">
 				<ui class="ui comments">
 					{{template "repo/diff/comments" dict "root" $ "comments" .comments}}
@@ -46,8 +49,8 @@
 						{{svg "octicon-arrow-down" 12 "icon"}} {{ctx.Locale.Tr "repo.issues.next"}}
 					</button>
 				</div>
-			{{if and $.CanMarkConversation $isNotPending}}
-				<button class="ui icon tiny basic button resolve-conversation" data-origin="diff" data-action="{{if not $resolved}}Resolve{{else}}UnResolve{{end}}" data-comment-id="{{(index .comments 0).ID}}" data-update-url="{{$.RepoLink}}/issues/resolve_conversation">
+				{{if and $.CanMarkConversation $hasReview (not $isReviewPending)}}
+					<button class="ui icon tiny basic button resolve-conversation" data-origin="diff" data-action="{{if not $resolved}}Resolve{{else}}UnResolve{{end}}" data-comment-id="{{$comment.ID}}" data-update-url="{{$.RepoLink}}/issues/resolve_conversation">
 						{{if $resolved}}
 							{{ctx.Locale.Tr "repo.issues.review.un_resolve_conversation"}}
 						{{else}}
@@ -61,6 +64,9 @@
 					</button>
 				{{end}}
 			</div>
-		{{template "repo/diff/comment_form_datahandler" dict "hidden" true "reply" (index .comments 0).ReviewID "root" $ "comment" (index .comments 0)}}
+			{{template "repo/diff/comment_form_datahandler" dict "hidden" true "reply" $comment.ReviewID "root" $ "comment" $comment}}
 		</div>
 	</div>
+{{else}}
+	{{template "repo/diff/conversation_outdated"}}
+{{end}}

templates/repo/issue/view_content/comments.tmpl

@@ -371,27 +371,31 @@
 		{{else if eq .Type 22}}
 			<div class="timeline-item-group" id="{{.HashTag}}">
 				<div class="timeline-item event">
+					{{$reviewType := -1}}
+					{{if .Review}}{{$reviewType = .Review.Type}}{{end}}
 					{{if not .OriginalAuthor}}
 					{{/* Some timeline avatars need a offset to correctly align with their speech
 							bubble. The condition depends on review type and for positive reviews whether
 							there is a comment element or not */}}
-					<a class="timeline-avatar{{if or (and (eq .Review.Type 1) (or .Content .Attachments)) (and (eq .Review.Type 2) (or .Content .Attachments)) (eq .Review.Type 3)}} timeline-avatar-offset{{end}}"{{if gt .Poster.ID 0}} href="{{.Poster.HomeLink}}"{{end}}>
+					<a class="timeline-avatar{{if or (and (eq $reviewType 1) (or .Content .Attachments)) (and (eq $reviewType 2) (or .Content .Attachments)) (eq $reviewType 3)}} timeline-avatar-offset{{end}}"{{if gt .Poster.ID 0}} href="{{.Poster.HomeLink}}"{{end}}>
 						{{ctx.AvatarUtils.Avatar .Poster 40}}
 					</a>
 					{{end}}
-					<span class="badge{{if eq .Review.Type 1}} tw-bg-green tw-text-white{{else if eq .Review.Type 3}} tw-bg-red tw-text-white{{end}}">{{svg (printf "octicon-%s" .Review.Type.Icon)}}</span>
+					<span class="badge{{if eq $reviewType 1}} tw-bg-green tw-text-white{{else if eq $reviewType 3}} tw-bg-red tw-text-white{{end}}">
+						{{if .Review}}{{svg (printf "octicon-%s" .Review.Type.Icon)}}{{end}}
+					</span>
 					<span class="text grey muted-links">
 						{{template "repo/issue/view_content/comments_authorlink" dict "ctxData" $ "comment" .}}
-						{{if eq .Review.Type 1}}
+						{{if eq $reviewType 1}}
 							{{ctx.Locale.Tr "repo.issues.review.approve" $createdStr}}
-						{{else if eq .Review.Type 2}}
+						{{else if eq $reviewType 2}}
 							{{ctx.Locale.Tr "repo.issues.review.comment" $createdStr}}
-						{{else if eq .Review.Type 3}}
+						{{else if eq $reviewType 3}}
 							{{ctx.Locale.Tr "repo.issues.review.reject" $createdStr}}
 						{{else}}
 							{{ctx.Locale.Tr "repo.issues.review.comment" $createdStr}}
 						{{end}}
-						{{if .Review.Dismissed}}
+						{{if and .Review .Review.Dismissed}}
 							<div class="ui small label">{{ctx.Locale.Tr "repo.issues.review.dismissed_label"}}</div>
 						{{end}}
 					</span>
@@ -451,7 +455,7 @@
 				</div>
 				{{end}}
 
-				{{if .Review.CodeComments}}
+				{{if and .Review .Review.CodeComments}}
 				<div class="timeline-item event">
 					{{range $filename, $lines := .Review.CodeComments}}
 						{{range $line, $comms := $lines}}
@@ -607,11 +611,13 @@
 					<span class="text grey muted-links">
 						{{template "shared/user/authorlink" .Poster}}
 						{{$reviewerName := ""}}
+						{{if .Review}}
 							{{if eq .Review.OriginalAuthor ""}}
 								{{$reviewerName = .Review.Reviewer.Name}}
 							{{else}}
 								{{$reviewerName = .Review.OriginalAuthor}}
 							{{end}}
+						{{end}}
 						{{ctx.Locale.Tr "repo.issues.review.dismissed" $reviewerName $createdStr}}
 					</span>
 				</div>

templates/repo/issue/view_content/conversation.tmpl

@@ -1,11 +1,14 @@
-{{$invalid := (index .comments 0).Invalidated}}
-{{$resolved := (index .comments 0).IsResolved}}
-{{$resolveDoer := (index .comments 0).ResolveDoer}}
-{{$isNotPending := (not (eq (index .comments 0).Review.Type 0))}}
+{{if len .comments}}
+	{{$comment := index .comments 0}}
+	{{$invalid := $comment.Invalidated}}
+	{{$resolved := $comment.IsResolved}}
+	{{$resolveDoer := $comment.ResolveDoer}}
+	{{$hasReview := and $comment.Review}}
+	{{$isReviewPending := and $hasReview (eq $comment.Review.Type 0)}}
 	<div class="ui segments conversation-holder">
 		<div class="ui segment collapsible-comment-box gt-py-3 gt-df gt-ac gt-sb">
 			<div class="gt-df gt-ac">
-			<a href="{{(index .comments 0).CodeCommentLink ctx}}" class="file-comment gt-ml-3 gt-word-break">{{(index .comments 0).TreePath}}</a>
+				<a href="{{$comment.CodeCommentLink ctx}}" class="file-comment gt-ml-3 gt-word-break">{{$comment.TreePath}}</a>
 				{{if $invalid}}
 					<span class="ui label basic small gt-ml-3" data-tooltip-content="{{ctx.Locale.Tr "repo.issues.review.outdated_description"}}">
 						{{ctx.Locale.Tr "repo.issues.review.outdated"}}
@@ -14,15 +17,15 @@
 			</div>
 			<div>
 				{{if or $invalid $resolved}}
-				<button id="show-outdated-{{(index .comments 0).ID}}" data-comment="{{(index .comments 0).ID}}" class="{{if not $resolved}}gt-hidden {{end}}ui compact labeled button show-outdated gt-df gt-ac">
+					<button id="show-outdated-{{$comment.ID}}" data-comment="{{$comment.ID}}" class="{{if not $resolved}}gt-hidden {{end}}ui compact labeled button show-outdated gt-df gt-ac">
 						{{svg "octicon-unfold" 16 "gt-mr-3"}}
 						{{if $resolved}}
 							{{ctx.Locale.Tr "repo.issues.review.show_resolved"}}
 						{{else}}
 							{{ctx.Locale.Tr "repo.issues.review.show_outdated"}}
 						{{end}}
 					</button>
-				<button id="hide-outdated-{{(index .comments 0).ID}}" data-comment="{{(index .comments 0).ID}}" class="{{if $resolved}}gt-hidden {{end}}ui compact labeled button hide-outdated gt-df gt-ac">
+					<button id="hide-outdated-{{$comment.ID}}" data-comment="{{$comment.ID}}" class="{{if $resolved}}gt-hidden {{end}}ui compact labeled button hide-outdated gt-df gt-ac">
 						{{svg "octicon-fold" 16 "gt-mr-3"}}
 						{{if $resolved}}
 							{{ctx.Locale.Tr "repo.issues.review.hide_resolved"}}
@@ -33,10 +36,10 @@
 				{{end}}
 			</div>
 		</div>
-	{{$diff := (CommentMustAsDiff ctx (index .comments 0))}}
+		{{$diff := (CommentMustAsDiff ctx $comment)}}
 		{{if $diff}}
 			{{$file := (index $diff.Files 0)}}
-		<div id="code-preview-{{(index .comments 0).ID}}" class="ui table segment{{if $resolved}} gt-hidden{{end}}">
+			<div id="code-preview-{{$comment.ID}}" class="ui table segment{{if $resolved}} gt-hidden{{end}}">
 				<div class="diff-file-box diff-box file-content {{TabSizeClass $.Editorconfig $file.Name}}">
 					<div class="file-body file-code code-view code-diff code-diff-unified unicode-escaped">
 						<table>
@@ -48,7 +51,7 @@
 				</div>
 			</div>
 		{{end}}
-	<div id="code-comments-{{(index .comments 0).ID}}" class="comment-code-cloud ui segment{{if $resolved}} gt-hidden{{end}}">
+		<div id="code-comments-{{$comment.ID}}" class="comment-code-cloud ui segment{{if $resolved}} gt-hidden{{end}}">
 			<div class="ui comments gt-mb-0">
 				{{range .comments}}
 					{{$createdSubStr:= TimeSinceUnix .CreatedUnix ctx.Locale}}
@@ -116,8 +119,8 @@
 					{{end}}
 				</div>
 				<div class="code-comment-buttons-buttons">
-				{{if and $.CanMarkConversation $isNotPending}}
-					<button class="ui tiny basic button resolve-conversation" data-origin="timeline" data-action="{{if not $resolved}}Resolve{{else}}UnResolve{{end}}" data-comment-id="{{(index .comments 0).ID}}" data-update-url="{{$.RepoLink}}/issues/resolve_conversation">
+					{{if and $.CanMarkConversation $hasReview (not $isReviewPending)}}
+						<button class="ui tiny basic button resolve-conversation" data-origin="timeline" data-action="{{if not $resolved}}Resolve{{else}}UnResolve{{end}}" data-comment-id="{{$comment.ID}}" data-update-url="{{$.RepoLink}}/issues/resolve_conversation">
 							{{if $resolved}}
 								{{ctx.Locale.Tr "repo.issues.review.un_resolve_conversation"}}
 							{{else}}
@@ -132,6 +135,9 @@
 					{{end}}
 				</div>
 			</div>
-		{{template "repo/diff/comment_form_datahandler" dict "hidden" true "reply" (index .comments 0).ReviewID "root" $ "comment" (index .comments 0)}}
+			{{template "repo/diff/comment_form_datahandler" dict "hidden" true "reply" $comment.ReviewID "root" $ "comment" $comment}}
 		</div>
 	</div>
+{{else}}
+	{{template "repo/diff/conversation_outdated"}}
+{{end}}

tests/integration/pull_review_test.go

@@ -14,6 +14,7 @@ import (
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/test"
 	repo_service "code.gitea.io/gitea/services/repository"
 	files_service "code.gitea.io/gitea/services/repository/files"
 	"code.gitea.io/gitea/tests"
@@ -26,10 +27,19 @@ func TestPullView_ReviewerMissed(t *testing.T) {
 	session := loginUser(t, "user1")
 
 	req := NewRequest(t, "GET", "/pulls")
-	session.MakeRequest(t, req, http.StatusOK)
+	resp := session.MakeRequest(t, req, http.StatusOK)
+	assert.True(t, test.IsNormalPageCompleted(resp.Body.String()))
 
 	req = NewRequest(t, "GET", "/user2/repo1/pulls/3")
-	session.MakeRequest(t, req, http.StatusOK)
+	resp = session.MakeRequest(t, req, http.StatusOK)
+	assert.True(t, test.IsNormalPageCompleted(resp.Body.String()))
+
+	// if some reviews are missing, the page shouldn't fail
+	err := db.TruncateBeans(db.DefaultContext, &issues_model.Review{})
+	assert.NoError(t, err)
+	req = NewRequest(t, "GET", "/user2/repo1/pulls/2")
+	resp = session.MakeRequest(t, req, http.StatusOK)
+	assert.True(t, test.IsNormalPageCompleted(resp.Body.String()))
 }
 
 func TestPullView_CodeOwner(t *testing.T) {