mirror of
https://github.com/go-gitea/gitea
synced 2024-06-15 00:48:48 +02:00
bd820aa9c5
To avoid duplicated load of the same data in an HTTP request, we can set
a context cache to do that. i.e. Some pages may load a user from a
database with the same id in different areas on the same page. But the
code is hidden in two different deep logic. How should we share the
user? As a result of this PR, now if both entry functions accept
`context.Context` as the first parameter and we just need to refactor
`GetUserByID` to reuse the user from the context cache. Then it will not
be loaded twice on an HTTP request.
But of course, sometimes we would like to reload an object from the
database, that's why `RemoveContextData` is also exposed.
The core context cache is here. It defines a new context
```go
type cacheContext struct {
ctx context.Context
data map[any]map[any]any
lock sync.RWMutex
}
var cacheContextKey = struct{}{}
func WithCacheContext(ctx context.Context) context.Context {
return context.WithValue(ctx, cacheContextKey, &cacheContext{
ctx: ctx,
data: make(map[any]map[any]any),
})
}
```
Then you can use the below 4 methods to read/write/del the data within
the same context.
```go
func GetContextData(ctx context.Context, tp, key any) any
func SetContextData(ctx context.Context, tp, key, value any)
func RemoveContextData(ctx context.Context, tp, key any)
func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error)
```
Then let's take a look at how `system.GetString` implement it.
```go
func GetSetting(ctx context.Context, key string) (string, error) {
return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) {
return cache.GetString(genSettingCacheKey(key), func() (string, error) {
res, err := GetSettingNoCache(ctx, key)
if err != nil {
return "", err
}
return res.SettingValue, nil
})
})
}
```
First, it will check if context data include the setting object with the
key. If not, it will query from the global cache which may be memory or
a Redis cache. If not, it will get the object from the database. In the
end, if the object gets from the global cache or database, it will be
set into the context cache.
An object stored in the context cache will only be destroyed after the
context disappeared.
241 lines
10 KiB
Handlebars
241 lines
10 KiB
Handlebars
<div class="ui stackable grid">
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{{if .Flash}}
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<div class="sixteen wide column">
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{{template "base/alert" .}}
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</div>
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{{end}}
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{{if not .Issue.IsPull}}
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{{template "repo/issue/view_title" .}}
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{{end}}
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<!-- I know, there is probably a better way to do this (moved from sidebar.tmpl, original author: 6543 @ 2021-02-28) -->
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<!-- Agree, there should be a better way, eg: introduce window.config.pageData (original author: wxiaoguang @ 2021-09-05) -->
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<input type="hidden" id="repolink" value="{{$.RepoRelPath}}">
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<input type="hidden" id="repoId" value="{{.Repository.ID}}">
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<input type="hidden" id="issueIndex" value="{{.Issue.Index}}"/>
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<input type="hidden" id="type" value="{{.IssueType}}">
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{{$createdStr:= TimeSinceUnix .Issue.CreatedUnix $.locale}}
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<div class="twelve wide column comment-list prevent-before-timeline">
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<ui class="ui timeline">
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<div id="{{.Issue.HashTag}}" class="timeline-item comment first">
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{{if .Issue.OriginalAuthor}}
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<span class="timeline-avatar"><img src="{{AppSubUrl}}/assets/img/avatar_default.png"></span>
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{{else}}
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<a class="timeline-avatar" {{if gt .Issue.Poster.ID 0}}href="{{.Issue.Poster.HomeLink}}"{{end}}>
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{{avatar $.Context .Issue.Poster}}
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</a>
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{{end}}
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<div class="content comment-container">
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<div class="ui top attached header comment-header gt-df gt-ac gt-sb">
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<div class="comment-header-left gt-df gt-ac">
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{{if .Issue.OriginalAuthor}}
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<span class="text black gt-bold">
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{{svg (MigrationIcon .Repository.GetOriginalURLHostname)}}
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{{.Issue.OriginalAuthor}}
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</span>
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<span class="text grey">
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{{.locale.Tr "repo.issues.commented_at" (.Issue.HashTag|Escape) $createdStr | Safe}}
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</span>
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<span class="text migrate">
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{{if .Repository.OriginalURL}} ({{$.locale.Tr "repo.migrated_from" (.Repository.OriginalURL|Escape) (.Repository.GetOriginalURLHostname|Escape) | Safe}}){{end}}
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</span>
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{{else}}
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<a class="inline-timeline-avatar" href="{{.Issue.Poster.HomeLink}}">
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{{avatar $.Context .Issue.Poster}}
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</a>
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<span class="text grey">
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{{template "shared/user/authorlink" .Issue.Poster}}
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{{.locale.Tr "repo.issues.commented_at" (.Issue.HashTag|Escape) $createdStr | Safe}}
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</span>
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{{end}}
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</div>
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<div class="comment-header-right actions gt-df gt-ac">
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{{if gt .Issue.ShowRole 0}}
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{{if (.Issue.ShowRole.HasRole "Writer")}}
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<div class="ui basic label role-label">
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{{$.locale.Tr "repo.issues.collaborator"}}
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</div>
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{{end}}
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{{if (.Issue.ShowRole.HasRole "Owner")}}
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<div class="ui basic label role-label">
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{{$.locale.Tr "repo.issues.owner"}}
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</div>
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{{end}}
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{{end}}
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{{if not $.Repository.IsArchived}}
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{{template "repo/issue/view_content/add_reaction" Dict "ctx" $ "ActionURL" (Printf "%s/issues/%d/reactions" $.RepoLink .Issue.Index)}}
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{{template "repo/issue/view_content/context_menu" Dict "ctx" $ "item" .Issue "delete" false "issue" true "diff" false "IsCommentPoster" $.IsIssuePoster}}
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{{end}}
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</div>
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</div>
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<div class="ui attached segment comment-body">
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<div class="render-content markup" {{if or $.Permission.IsAdmin $.HasIssuesOrPullsWritePermission $.IsIssuePoster}}data-can-edit="true"{{end}}>
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{{if .Issue.RenderedContent}}
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{{.Issue.RenderedContent|Str2html}}
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{{else}}
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<span class="no-content">{{.locale.Tr "repo.issues.no_content"}}</span>
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{{end}}
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</div>
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<div id="issue-{{.Issue.ID}}-raw" class="raw-content hide">{{.Issue.Content}}</div>
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<div class="edit-content-zone hide" data-write="issue-{{.Issue.ID}}-write" data-preview="issue-{{.Issue.ID}}-preview" data-update-url="{{$.RepoLink}}/issues/{{.Issue.Index}}/content" data-context="{{.RepoLink}}" data-attachment-url="{{$.RepoLink}}/issues/{{.Issue.Index}}/attachments" data-view-attachment-url="{{$.RepoLink}}/issues/{{.Issue.Index}}/view-attachments"></div>
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{{if .Issue.Attachments}}
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{{template "repo/issue/view_content/attachments" Dict "ctx" $ "Attachments" .Issue.Attachments "Content" .Issue.RenderedContent}}
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{{end}}
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</div>
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{{$reactions := .Issue.Reactions.GroupByType}}
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{{if $reactions}}
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<div class="ui attached segment reactions">
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{{template "repo/issue/view_content/reactions" Dict "ctx" $ "ActionURL" (Printf "%s/issues/%d/reactions" $.RepoLink .Issue.Index) "Reactions" $reactions}}
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</div>
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{{end}}
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</div>
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</div>
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{{template "repo/issue/view_content/comments" .}}
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{{if and .Issue.IsPull (not $.Repository.IsArchived)}}
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{{template "repo/issue/view_content/pull".}}
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{{end}}
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{{if .IsSigned}}
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{{if and (or .IsRepoAdmin .HasIssuesOrPullsWritePermission (not .Issue.IsLocked)) (not .Repository.IsArchived)}}
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<div class="timeline-item comment form">
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<a class="timeline-avatar" href="{{.SignedUser.HomeLink}}">
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{{avatar $.Context .SignedUser}}
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</a>
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<div class="content">
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<form class="ui segment form" id="comment-form" action="{{$.RepoLink}}/issues/{{.Issue.Index}}/comments" method="post">
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{{template "repo/issue/comment_tab" .}}
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{{.CsrfTokenHtml}}
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<input id="status" name="status" type="hidden">
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<div class="field footer">
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<div class="text right">
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{{if and (or .HasIssuesOrPullsWritePermission .IsIssuePoster) (not .DisableStatusChange)}}
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{{if .Issue.IsClosed}}
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<div id="status-button" class="ui green basic button" tabindex="6" data-status="{{.locale.Tr "repo.issues.reopen_issue"}}" data-status-and-comment="{{.locale.Tr "repo.issues.reopen_comment_issue"}}" data-status-val="reopen">
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{{.locale.Tr "repo.issues.reopen_issue"}}
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</div>
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{{else}}
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<div id="status-button" class="ui red basic button" tabindex="6" data-status="{{.locale.Tr "repo.issues.close_issue"}}" data-status-and-comment="{{.locale.Tr "repo.issues.close_comment_issue"}}" data-status-val="close">
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{{.locale.Tr "repo.issues.close_issue"}}
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</div>
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{{end}}
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{{end}}
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<button class="ui green button loading-button" tabindex="5">
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{{.locale.Tr "repo.issues.create_comment"}}
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</button>
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</div>
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</div>
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</form>
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</div>
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</div>
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{{else if .Repository.IsArchived}}
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<div class="ui warning message">
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{{if .Issue.IsPull}}
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{{.locale.Tr "repo.archive.pull.nocomment"}}
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{{else}}
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{{.locale.Tr "repo.archive.issue.nocomment"}}
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{{end}}
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</div>
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{{end}}
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{{else}}
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{{if .Repository.IsArchived}}
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<div class="ui warning message">
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{{if .Issue.IsPull}}
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{{.locale.Tr "repo.archive.pull.nocomment"}}
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{{else}}
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{{.locale.Tr "repo.archive.issue.nocomment"}}
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{{end}}
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</div>
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{{else}}
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{{if .IsSigned}}
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{{if .Repository.IsArchived}}
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<div class="timeline-item comment form">
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<a class="timeline-avatar" href="{{.SignedUser.HomeLink}}">
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{{avatar $.Context .SignedUser}}
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</a>
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<div class="content">
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<form class="ui segment form" id="comment-form" action="{{$.RepoLink}}/issues/{{.Issue.Index}}/comments" method="post">
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{{template "repo/issue/comment_tab" .}}
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{{.CsrfTokenHtml}}
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<input id="status" name="status" type="hidden">
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<div class="field footer">
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<div class="text right">
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{{if and (or .HasIssuesOrPullsWritePermission .IsIssuePoster) (not .DisableStatusChange)}}
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{{if .Issue.IsClosed}}
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<div id="status-button" class="ui green basic button" tabindex="6" data-status="{{.locale.Tr "repo.issues.reopen_issue"}}" data-status-and-comment="{{.locale.Tr "repo.issues.reopen_comment_issue"}}" data-status-val="reopen">
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{{.locale.Tr "repo.issues.reopen_issue"}}
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</div>
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{{else}}
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<div id="status-button" class="ui red basic button" tabindex="6" data-status="{{.locale.Tr "repo.issues.close_issue"}}" data-status-and-comment="{{.locale.Tr "repo.issues.close_comment_issue"}}" data-status-val="close">
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{{.locale.Tr "repo.issues.close_issue"}}
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</div>
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{{end}}
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{{end}}
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<button class="ui green button loading-button" tabindex="5">
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{{.locale.Tr "repo.issues.create_comment"}}
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</button>
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</div>
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</div>
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</form>
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</div>
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</div>
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{{end}}
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{{else}}
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<div class="ui warning message">
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{{.locale.Tr "repo.issues.sign_in_require_desc" (.SignInLink|Escape) | Safe}}
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</div>
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{{end}}
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{{end}}
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{{end}}
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</ui>
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</div>
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{{template "repo/issue/view_content/sidebar" .}}
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</div>
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<div class="hide" id="edit-content-form">
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<div class="ui comment form">
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<div class="ui top tabular menu">
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<a class="active write item">{{$.locale.Tr "write"}}</a>
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<a class="preview item" data-url="{{$.Repository.Link}}/markdown" data-context="{{$.RepoLink}}">{{$.locale.Tr "preview"}}</a>
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</div>
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<div class="field">
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<div class="ui bottom active tab write">
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<textarea tabindex="1" name="content" class="js-quick-submit"></textarea>
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</div>
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<div class="ui bottom tab preview markup">
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{{$.locale.Tr "loading"}}
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</div>
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</div>
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{{if .IsAttachmentEnabled}}
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<div class="field">
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{{template "repo/upload" .}}
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</div>
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{{end}}
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<div class="field footer">
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<div class="text right edit">
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<div class="ui basic secondary cancel button" tabindex="3">{{.locale.Tr "repo.issues.cancel"}}</div>
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<div class="ui primary save button" tabindex="2">{{.locale.Tr "repo.issues.save"}}</div>
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</div>
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</div>
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</div>
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</div>
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{{template "repo/issue/view_content/reference_issue_dialog" .}}
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<div class="hide" id="no-content">
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<span class="no-content">{{.locale.Tr "repo.issues.no_content"}}</span>
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</div>
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<div class="ui small basic delete modal">
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<div class="ui icon header">
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{{svg "octicon-trash"}}
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{{.locale.Tr "repo.branch.delete" .HeadTarget}}
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</div>
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<div class="content">
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<p>{{.locale.Tr "repo.branch.delete_desc" | Str2html}}</p>
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</div>
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{{template "base/delete_modal_actions" .}}
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</div>
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