Fix milestone deadline and date related problems (#32339)

Use zero instead of 9999-12-31 for deadline
Fix #32291

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>

models/actions/schedule_spec_test.go

@@ -7,19 +7,17 @@ import (
 	"testing"
 	"time"
 
+	"code.gitea.io/gitea/modules/test"
+
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
 func TestActionScheduleSpec_Parse(t *testing.T) {
 	// Mock the local timezone is not UTC
-	local := time.Local
 	tz, err := time.LoadLocation("Asia/Shanghai")
 	require.NoError(t, err)
-	defer func() {
+	defer test.MockVariableValue(&time.Local, tz)()
-		time.Local = local
-	}()
-	time.Local = tz
 
 	now, err := time.Parse(time.RFC3339, "2024-07-31T15:47:55+08:00")
 	require.NoError(t, err)

models/issues/milestone.go

@@ -84,10 +84,9 @@ func (m *Milestone) BeforeUpdate() {
 // this object.
 func (m *Milestone) AfterLoad() {
 	m.NumOpenIssues = m.NumIssues - m.NumClosedIssues
-	if m.DeadlineUnix.Year() == 9999 {
+	if m.DeadlineUnix == 0 {
 		return
 	}
-
 	m.DeadlineString = m.DeadlineUnix.FormatDate()
 	if m.IsClosed {
 		m.IsOverdue = m.ClosedDateUnix >= m.DeadlineUnix

models/migrations/migrations.go

@@ -364,6 +364,7 @@ func prepareMigrationTasks() []*migration {
 		newMigration(304, "Add index for release sha1", v1_23.AddIndexForReleaseSha1),
 		newMigration(305, "Add Repository Licenses", v1_23.AddRepositoryLicenses),
 		newMigration(306, "Add BlockAdminMergeOverride to ProtectedBranch", v1_23.AddBlockAdminMergeOverrideBranchProtection),
+		newMigration(307, "Fix milestone deadline_unix when there is no due date", v1_23.FixMilestoneNoDueDate),
 	}
 	return preparedMigrations
 }

models/migrations/v1_23/v307.go

@@ -0,0 +1,21 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func FixMilestoneNoDueDate(x *xorm.Engine) error {
+	type Milestone struct {
+		DeadlineUnix timeutil.TimeStamp
+	}
+	// Wednesday, December 1, 9999 12:00:00 AM GMT+00:00
+	_, err := x.Table("milestone").Where("deadline_unix > 253399622400").
+		Cols("deadline_unix").
+		Update(&Milestone{DeadlineUnix: 0})
+	return err
+}

modules/gitgraph/graph.go

@@ -32,7 +32,7 @@ func GetCommitGraph(r *git.Repository, page, maxAllowedColors int, hidePRRefs bo
 		graphCmd.AddArguments("--all")
 	}
 
-	graphCmd.AddArguments("-C", "-M", "--date=iso").
+	graphCmd.AddArguments("-C", "-M", "--date=iso-strict").
 		AddOptionFormat("-n %d", setting.UI.GraphMaxCommitNum*page).
 		AddOptionFormat("--pretty=format:%s", format)
 

modules/gitgraph/graph_models.go

@@ -8,6 +8,7 @@ import (
 	"context"
 	"fmt"
 	"strings"
+	"time"
 
 	asymkey_model "code.gitea.io/gitea/models/asymkey"
 	"code.gitea.io/gitea/models/db"
@@ -192,6 +193,14 @@ var RelationCommit = &Commit{
 	Row: -1,
 }
 
+func parseGitTime(timeStr string) time.Time {
+	t, err := time.Parse(time.RFC3339, timeStr)
+	if err != nil {
+		return time.Unix(0, 0)
+	}
+	return t
+}
+
 // NewCommit creates a new commit from a provided line
 func NewCommit(row, column int, line []byte) (*Commit, error) {
 	data := bytes.SplitN(line, []byte("|"), 5)
@@ -206,7 +215,7 @@ func NewCommit(row, column int, line []byte) (*Commit, error) {
 		// 1 matches git log --pretty=format:%H => commit hash
 		Rev: string(data[1]),
 		// 2 matches git log --pretty=format:%ad => author date (format respects --date= option)
-		Date: string(data[2]),
+		Date: parseGitTime(string(data[2])),
 		// 3 matches git log --pretty=format:%h => abbreviated commit hash
 		ShortRev: string(data[3]),
 		// 4 matches git log --pretty=format:%s => subject
@@ -245,7 +254,7 @@ type Commit struct {
 	Column       int
 	Refs         []git.Reference
 	Rev          string
-	Date         string
+	Date         time.Time
 	ShortRev     string
 	Subject      string
 }

modules/templates/util_date.go

@@ -27,7 +27,7 @@ func (du *DateUtils) AbsoluteShort(time any) template.HTML {
 
 // AbsoluteLong renders in "January 01, 2006" format
 func (du *DateUtils) AbsoluteLong(time any) template.HTML {
-	return dateTimeFormat("short", time)
+	return dateTimeFormat("long", time)
 }
 
 // FullTime renders in "Jan 01, 2006 20:33:44" format

routers/api/v1/repo/issue.go

@@ -26,6 +26,7 @@ import (
 	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/api/v1/utils"
+	"code.gitea.io/gitea/routers/common"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
 	issue_service "code.gitea.io/gitea/services/issue"
@@ -1046,18 +1047,11 @@ func UpdateIssueDeadline(ctx *context.APIContext) {
 		return
 	}
 
-	var deadlineUnix timeutil.TimeStamp
+	deadlineUnix, _ := common.ParseAPIDeadlineToEndOfDay(form.Deadline)
-	var deadline time.Time
-	if form.Deadline != nil && !form.Deadline.IsZero() {
-		deadline = time.Date(form.Deadline.Year(), form.Deadline.Month(), form.Deadline.Day(),
-			23, 59, 59, 0, time.Local)
-		deadlineUnix = timeutil.TimeStamp(deadline.Unix())
-	}
-
 	if err := issues_model.UpdateIssueDeadline(ctx, issue, deadlineUnix, ctx.Doer); err != nil {
 		ctx.Error(http.StatusInternalServerError, "UpdateIssueDeadline", err)
 		return
 	}
 
-	ctx.JSON(http.StatusCreated, api.IssueDeadline{Deadline: &deadline})
+	ctx.JSON(http.StatusCreated, api.IssueDeadline{Deadline: deadlineUnix.AsTimePtr()})
 }

routers/api/v1/repo/milestone.go

@@ -7,7 +7,6 @@ package repo
 import (
 	"net/http"
 	"strconv"
-	"time"
 
 	"code.gitea.io/gitea/models/db"
 	issues_model "code.gitea.io/gitea/models/issues"
@@ -16,6 +15,7 @@ import (
 	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/api/v1/utils"
+	"code.gitea.io/gitea/routers/common"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
 )
@@ -155,16 +155,16 @@ func CreateMilestone(ctx *context.APIContext) {
 	//     "$ref": "#/responses/notFound"
 	form := web.GetForm(ctx).(*api.CreateMilestoneOption)
 
-	if form.Deadline == nil {
+	var deadlineUnix int64
-		defaultDeadline, _ := time.ParseInLocation("2006-01-02", "9999-12-31", time.Local)
+	if form.Deadline != nil {
-		form.Deadline = &defaultDeadline
+		deadlineUnix = form.Deadline.Unix()
 	}
 
 	milestone := &issues_model.Milestone{
 		RepoID:       ctx.Repo.Repository.ID,
 		Name:         form.Title,
 		Content:      form.Description,
-		DeadlineUnix: timeutil.TimeStamp(form.Deadline.Unix()),
+		DeadlineUnix: timeutil.TimeStamp(deadlineUnix),
 	}
 
 	if form.State == "closed" {
@@ -225,9 +225,7 @@ func EditMilestone(ctx *context.APIContext) {
 	if form.Description != nil {
 		milestone.Content = *form.Description
 	}
-	if form.Deadline != nil && !form.Deadline.IsZero() {
+	milestone.DeadlineUnix, _ = common.ParseAPIDeadlineToEndOfDay(form.Deadline)
-		milestone.DeadlineUnix = timeutil.TimeStamp(form.Deadline.Unix())
-	}
 
 	oldIsClosed := milestone.IsClosed
 	if form.State != nil {

routers/common/deadline.go

@@ -0,0 +1,31 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package common
+
+import (
+	"time"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+func ParseDeadlineDateToEndOfDay(date string) (timeutil.TimeStamp, error) {
+	if date == "" {
+		return 0, nil
+	}
+	deadline, err := time.ParseInLocation("2006-01-02", date, setting.DefaultUILocation)
+	if err != nil {
+		return 0, err
+	}
+	deadline = time.Date(deadline.Year(), deadline.Month(), deadline.Day(), 23, 59, 59, 0, deadline.Location())
+	return timeutil.TimeStamp(deadline.Unix()), nil
+}
+
+func ParseAPIDeadlineToEndOfDay(t *time.Time) (timeutil.TimeStamp, error) {
+	if t == nil || t.IsZero() || t.Unix() == 0 {
+		return 0, nil
+	}
+	deadline := time.Date(t.Year(), t.Month(), t.Day(), 23, 59, 59, 0, setting.DefaultUILocation)
+	return timeutil.TimeStamp(deadline.Unix()), nil
+}

routers/web/repo/issue.go

@@ -17,7 +17,6 @@ import (
 	"sort"
 	"strconv"
 	"strings"
-	"time"
 
 	activities_model "code.gitea.io/gitea/models/activities"
 	"code.gitea.io/gitea/models/db"
@@ -45,9 +44,9 @@ import (
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/modules/templates/vars"
-	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
+	"code.gitea.io/gitea/routers/common"
 	"code.gitea.io/gitea/routers/utils"
 	shared_user "code.gitea.io/gitea/routers/web/shared/user"
 	asymkey_service "code.gitea.io/gitea/services/asymkey"
@@ -2329,7 +2328,6 @@ func UpdateIssueContent(ctx *context.Context) {
 
 // UpdateIssueDeadline updates an issue deadline
 func UpdateIssueDeadline(ctx *context.Context) {
-	form := web.GetForm(ctx).(*api.EditDeadlineOption)
 	issue, err := issues_model.GetIssueByIndex(ctx, ctx.Repo.Repository.ID, ctx.PathParamInt64(":index"))
 	if err != nil {
 		if issues_model.IsErrIssueNotExist(err) {
@@ -2345,20 +2343,13 @@ func UpdateIssueDeadline(ctx *context.Context) {
 		return
 	}
 
-	var deadlineUnix timeutil.TimeStamp
+	deadlineUnix, _ := common.ParseDeadlineDateToEndOfDay(ctx.FormString("deadline"))
-	var deadline time.Time
-	if form.Deadline != nil && !form.Deadline.IsZero() {
-		deadline = time.Date(form.Deadline.Year(), form.Deadline.Month(), form.Deadline.Day(),
-			23, 59, 59, 0, time.Local)
-		deadlineUnix = timeutil.TimeStamp(deadline.Unix())
-	}
-
 	if err := issues_model.UpdateIssueDeadline(ctx, issue, deadlineUnix, ctx.Doer); err != nil {
 		ctx.Error(http.StatusInternalServerError, "UpdateIssueDeadline", err.Error())
 		return
 	}
 
-	ctx.JSON(http.StatusCreated, api.IssueDeadline{Deadline: &deadline})
+	ctx.JSONRedirect("")
 }
 
 // UpdateIssueMilestone change issue's milestone

routers/web/repo/milestone.go

@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
-	"time"
 
 	"code.gitea.io/gitea/models/db"
 	issues_model "code.gitea.io/gitea/models/issues"
@@ -16,8 +15,8 @@ import (
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
-	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/web"
+	"code.gitea.io/gitea/routers/common"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/forms"
 	"code.gitea.io/gitea/services/issue"
@@ -134,22 +133,18 @@ func NewMilestonePost(ctx *context.Context) {
 		return
 	}
 
-	if len(form.Deadline) == 0 {
+	deadlineUnix, err := common.ParseDeadlineDateToEndOfDay(form.Deadline)
-		form.Deadline = "9999-12-31"
-	}
-	deadline, err := time.ParseInLocation("2006-01-02", form.Deadline, time.Local)
 	if err != nil {
 		ctx.Data["Err_Deadline"] = true
 		ctx.RenderWithErr(ctx.Tr("repo.milestones.invalid_due_date_format"), tplMilestoneNew, &form)
 		return
 	}
 
-	deadline = time.Date(deadline.Year(), deadline.Month(), deadline.Day(), 23, 59, 59, 0, deadline.Location())
+	if err := issues_model.NewMilestone(ctx, &issues_model.Milestone{
-	if err = issues_model.NewMilestone(ctx, &issues_model.Milestone{
 		RepoID:       ctx.Repo.Repository.ID,
 		Name:         form.Title,
 		Content:      form.Content,
-		DeadlineUnix: timeutil.TimeStamp(deadline.Unix()),
+		DeadlineUnix: deadlineUnix,
 	}); err != nil {
 		ctx.ServerError("NewMilestone", err)
 		return
@@ -194,17 +189,13 @@ func EditMilestonePost(ctx *context.Context) {
 		return
 	}
 
-	if len(form.Deadline) == 0 {
+	deadlineUnix, err := common.ParseDeadlineDateToEndOfDay(form.Deadline)
-		form.Deadline = "9999-12-31"
-	}
-	deadline, err := time.ParseInLocation("2006-01-02", form.Deadline, time.Local)
 	if err != nil {
 		ctx.Data["Err_Deadline"] = true
 		ctx.RenderWithErr(ctx.Tr("repo.milestones.invalid_due_date_format"), tplMilestoneNew, &form)
 		return
 	}
 
-	deadline = time.Date(deadline.Year(), deadline.Month(), deadline.Day(), 23, 59, 59, 0, deadline.Location())
 	m, err := issues_model.GetMilestoneByRepoID(ctx, ctx.Repo.Repository.ID, ctx.PathParamInt64(":id"))
 	if err != nil {
 		if issues_model.IsErrMilestoneNotExist(err) {
@@ -216,7 +207,7 @@ func EditMilestonePost(ctx *context.Context) {
 	}
 	m.Name = form.Title
 	m.Content = form.Content
-	m.DeadlineUnix = timeutil.TimeStamp(deadline.Unix())
+	m.DeadlineUnix = deadlineUnix
 	if err = issues_model.UpdateMilestone(ctx, m, m.IsClosed); err != nil {
 		ctx.ServerError("UpdateMilestone", err)
 		return

routers/web/web.go

@@ -1208,7 +1208,7 @@ func registerRoutes(m *web.Router) {
 			m.Group("/{index}", func() {
 				m.Post("/title", repo.UpdateIssueTitle)
 				m.Post("/content", repo.UpdateIssueContent)
-				m.Post("/deadline", web.Bind(structs.EditDeadlineOption{}), repo.UpdateIssueDeadline)
+				m.Post("/deadline", repo.UpdateIssueDeadline)
 				m.Post("/watch", repo.IssueWatch)
 				m.Post("/ref", repo.UpdateIssueRef)
 				m.Post("/pin", reqRepoAdmin, repo.IssuePinOrUnpin)

services/convert/issue.go

@@ -260,7 +260,7 @@ func ToAPIMilestone(m *issues_model.Milestone) *api.Milestone {
 	if m.IsClosed {
 		apiMilestone.Closed = m.ClosedDateUnix.AsTimePtr()
 	}
-	if m.DeadlineUnix.Year() < 9999 {
+	if m.DeadlineUnix > 0 {
 		apiMilestone.Deadline = m.DeadlineUnix.AsTimePtr()
 	}
 	return apiMilestone

templates/repo/graph/commits.tmpl

@@ -56,7 +56,7 @@
 							{{end}}
 						{{end}}
 					</span>
-					<span class="author tw-flex tw-items-center tw-mr-2 tw-gap-[1px]">
+					<span class="author tw-flex tw-items-center tw-mr-2 tw-gap-1">
 						{{$userName := $commit.Commit.Author.Name}}
 						{{if $commit.User}}
 							{{if and $commit.User.FullName DefaultShowFullName}}

templates/repo/issue/milestone_new.tmpl

@@ -30,9 +30,9 @@
 				<div class="field {{if .Err_Deadline}}error{{end}}">
 					<label>
 						{{ctx.Locale.Tr "repo.milestones.due_date"}}
-						<a id="clear-date">{{ctx.Locale.Tr "repo.milestones.clear"}}</a>
+						<a id="milestone-clear-deadline">{{ctx.Locale.Tr "repo.milestones.clear"}}</a>
 					</label>
-					<input type="date" id="deadline" name="deadline" value="{{.deadline}}" placeholder="{{ctx.Locale.Tr "repo.issues.due_date_form"}}">
+					<input type="date" name="deadline" class="tw-w-auto" value="{{.deadline}}" placeholder="{{ctx.Locale.Tr "repo.issues.due_date_form"}}">
 				</div>
 				<div class="field">
 					<label>{{ctx.Locale.Tr "repo.milestones.desc"}}</label>

templates/repo/issue/view_content/sidebar.tmpl

@@ -358,44 +358,31 @@
 
 	<div class="divider"></div>
 	<span class="text"><strong>{{ctx.Locale.Tr "repo.issues.due_date"}}</strong></span>
-	<div class="ui form" id="deadline-loader">
+	<div class="ui form tw-mt-2">
-		<div class="ui negative message tw-hidden" id="deadline-err-invalid-date">
+		{{if .Issue.DeadlineUnix}}
-			{{svg "octicon-x" 16 "close icon"}}
+			<div class="tw-flex tw-justify-between tw-items-center tw-gap-2">
-			{{ctx.Locale.Tr "repo.issues.due_date_invalid"}}
-		</div>
-		{{if ne .Issue.DeadlineUnix 0}}
-			<p>
-				<div class="tw-flex tw-justify-between tw-items-center">
 				<div class="due-date {{if .Issue.IsOverdue}}text red{{end}}" {{if .Issue.IsOverdue}}data-tooltip-content="{{ctx.Locale.Tr "repo.issues.due_date_overdue"}}"{{end}}>
-						{{svg "octicon-calendar" 16 "tw-mr-2"}}
+					{{svg "octicon-calendar"}} {{DateUtils.AbsoluteLong .Issue.DeadlineUnix}}
-						{{DateUtils.AbsoluteLong .Issue.DeadlineUnix}}
 				</div>
-					<div>
+				<div class="flex-text-block">
 					{{if and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
-							<a class="issue-due-edit muted" data-tooltip-content="{{ctx.Locale.Tr "repo.issues.due_date_form_edit"}}">{{svg "octicon-pencil" 16 "tw-mr-1"}}</a>
+						<a class="issue-due-edit muted" data-tooltip-content="{{ctx.Locale.Tr "repo.issues.due_date_form_edit"}}">{{svg "octicon-pencil"}}</a>
 						<a class="issue-due-remove muted" data-tooltip-content="{{ctx.Locale.Tr "repo.issues.due_date_form_remove"}}">{{svg "octicon-trash"}}</a>
 					{{end}}
 				</div>
 			</div>
-			</p>
 		{{else}}
-			<p>{{ctx.Locale.Tr "repo.issues.due_date_not_set"}}</p>
+			{{ctx.Locale.Tr "repo.issues.due_date_not_set"}}
 		{{end}}
 
 		{{if and .HasIssuesOrPullsWritePermission (not .Repository.IsArchived)}}
-			<div {{if ne .Issue.DeadlineUnix 0}} class="tw-hidden"{{end}} id="deadlineForm">
+			<form class="ui fluid action input issue-due-form form-fetch-action tw-mt-2 {{if .Issue.DeadlineUnix}}tw-hidden{{end}}"
-				<form class="ui fluid action input issue-due-form" action="{{AppSubUrl}}/{{PathEscape .Repository.Owner.Name}}/{{PathEscape .Repository.Name}}/issues/{{.Issue.Index}}/deadline" method="post" id="update-issue-deadline-form">
+						method="post" action="{{AppSubUrl}}/{{PathEscape .Repository.Owner.Name}}/{{PathEscape .Repository.Name}}/issues/{{.Issue.Index}}/deadline"
+			>
 				{{$.CsrfTokenHtml}}
-					<input required placeholder="{{ctx.Locale.Tr "repo.issues.due_date_form"}}" {{if gt .Issue.DeadlineUnix 0}}value="{{.Issue.DeadlineUnix.FormatDate}}"{{end}} type="date" name="deadlineDate" id="deadlineDate">
+				<input required type="date" name="deadline" placeholder="{{ctx.Locale.Tr "repo.issues.due_date_form"}}" {{if .Issue.DeadlineUnix}}value="{{.Issue.DeadlineUnix.FormatDate}}"{{end}}>
-					<button class="ui icon button">
+				<button class="ui icon button">{{Iif .Issue.DeadlineUnix (svg "octicon-pencil") (svg "octicon-plus")}}</button>
-						{{if ne .Issue.DeadlineUnix 0}}
-							{{svg "octicon-pencil"}}
-						{{else}}
-							{{svg "octicon-plus"}}
-						{{end}}
-					</button>
 			</form>
-			</div>
 		{{end}}
 	</div>
 

tests/integration/api_issue_milestone_test.go

@@ -59,6 +59,7 @@ func TestAPIIssuesMilestone(t *testing.T) {
 	DecodeJSON(t, resp, &apiMilestone)
 	assert.Equal(t, "wow", apiMilestone.Title)
 	assert.Equal(t, structs.StateClosed, apiMilestone.State)
+	assert.Nil(t, apiMilestone.Deadline)
 
 	var apiMilestones []structs.Milestone
 	req = NewRequest(t, "GET", fmt.Sprintf("/api/v1/repos/%s/%s/milestones?state=%s", owner.Name, repo.Name, "all")).
@@ -66,6 +67,7 @@ func TestAPIIssuesMilestone(t *testing.T) {
 	resp = MakeRequest(t, req, http.StatusOK)
 	DecodeJSON(t, resp, &apiMilestones)
 	assert.Len(t, apiMilestones, 4)
+	assert.Nil(t, apiMilestones[0].Deadline)
 
 	req = NewRequest(t, "GET", fmt.Sprintf("/api/v1/repos/%s/%s/milestones/%s", owner.Name, repo.Name, apiMilestones[2].Title)).
 		AddTokenAuth(token)

tests/integration/issue_test.go

@@ -657,26 +657,21 @@ func TestUpdateIssueDeadline(t *testing.T) {
 	repoBefore := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issueBefore.RepoID})
 	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repoBefore.OwnerID})
 	assert.NoError(t, issueBefore.LoadAttributes(db.DefaultContext))
-	assert.Equal(t, int64(1019307200), int64(issueBefore.DeadlineUnix))
+	assert.Equal(t, "2002-04-20", issueBefore.DeadlineUnix.FormatDate())
 	assert.Equal(t, api.StateOpen, issueBefore.State())
 
 	session := loginUser(t, owner.Name)
+	urlStr := fmt.Sprintf("%s/%s/issues/%d/deadline?_csrf=%s", owner.Name, repoBefore.Name, issueBefore.Index, GetUserCSRFToken(t, session))
 
-	issueURL := fmt.Sprintf("%s/%s/issues/%d", owner.Name, repoBefore.Name, issueBefore.Index)
+	req := NewRequestWithValues(t, "POST", urlStr, map[string]string{"deadline": "2022-04-06"})
-	req := NewRequest(t, "GET", issueURL)
+	session.MakeRequest(t, req, http.StatusOK)
-	resp := session.MakeRequest(t, req, http.StatusOK)
+	issueAfter := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 10})
-	htmlDoc := NewHTMLParser(t, resp.Body)
+	assert.EqualValues(t, "2022-04-06", issueAfter.DeadlineUnix.FormatDate())
-
-	urlStr := issueURL + "/deadline?_csrf=" + htmlDoc.GetCSRF()
-	req = NewRequestWithJSON(t, "POST", urlStr, map[string]string{
-		"due_date": "2022-04-06T00:00:00.000Z",
-	})
-
-	resp = session.MakeRequest(t, req, http.StatusCreated)
-	var apiIssue api.IssueDeadline
-	DecodeJSON(t, resp, &apiIssue)
 
-	assert.EqualValues(t, "2022-04-06", apiIssue.Deadline.Format("2006-01-02"))
+	req = NewRequestWithValues(t, "POST", urlStr, map[string]string{"deadline": ""})
+	session.MakeRequest(t, req, http.StatusOK)
+	issueAfter = unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 10})
+	assert.True(t, issueAfter.DeadlineUnix.IsZero())
 }
 
 func TestIssueReferenceURL(t *testing.T) {

web_src/js/features/repo-issue-sidebar.ts

@@ -3,6 +3,7 @@ import {POST} from '../modules/fetch.ts';
 import {updateIssuesMeta} from './repo-common.ts';
 import {svg} from '../svg.ts';
 import {htmlEscape} from 'escape-goat';
+import {toggleElem} from '../utils/dom.ts';
 
 // if there are draft comments, confirm before reloading, to avoid losing comments
 function reloadConfirmDraftComment() {
@@ -258,8 +259,22 @@ function selectItem(select_id, input_id) {
   });
 }
 
+function initRepoIssueDue() {
+  const form = document.querySelector<HTMLFormElement>('.issue-due-form');
+  if (!form) return;
+  const deadline = form.querySelector<HTMLInputElement>('input[name=deadline]');
+  document.querySelector('.issue-due-edit')?.addEventListener('click', () => {
+    toggleElem(form);
+  });
+  document.querySelector('.issue-due-remove')?.addEventListener('click', () => {
+    deadline.value = '';
+    form.dispatchEvent(new Event('submit', {cancelable: true, bubbles: true}));
+  });
+}
+
 export function initRepoIssueSidebar() {
   initBranchSelector();
+  initRepoIssueDue();
 
   // Init labels and assignees
   initListSubmits('select-label', 'labels');

web_src/js/features/repo-issue.ts

@@ -43,52 +43,6 @@ export function initRepoIssueTimeTracking() {
   });
 }
 
-async function updateDeadline(deadlineString) {
-  hideElem('#deadline-err-invalid-date');
-  document.querySelector('#deadline-loader')?.classList.add('is-loading');
-
-  let realDeadline = null;
-  if (deadlineString !== '') {
-    const newDate = Date.parse(deadlineString);
-
-    if (Number.isNaN(newDate)) {
-      document.querySelector('#deadline-loader')?.classList.remove('is-loading');
-      showElem('#deadline-err-invalid-date');
-      return false;
-    }
-    realDeadline = new Date(newDate);
-  }
-
-  try {
-    const response = await POST(document.querySelector('#update-issue-deadline-form').getAttribute('action'), {
-      data: {due_date: realDeadline},
-    });
-
-    if (response.ok) {
-      window.location.reload();
-    } else {
-      throw new Error('Invalid response');
-    }
-  } catch (error) {
-    console.error(error);
-    document.querySelector('#deadline-loader').classList.remove('is-loading');
-    showElem('#deadline-err-invalid-date');
-  }
-}
-
-export function initRepoIssueDue() {
-  $(document).on('click', '.issue-due-edit', () => {
-    toggleElem('#deadlineForm');
-  });
-  $(document).on('click', '.issue-due-remove', () => {
-    updateDeadline('');
-  });
-  $(document).on('submit', '.issue-due-form', () => {
-    updateDeadline($('#deadlineDate').val());
-    return false;
-  });
-}
-
 /**
  * @param {HTMLElement} item
  */

web_src/js/features/repo-milestone.ts

@@ -1,11 +1,9 @@
-import $ from 'jquery';
-
 export function initRepoMilestone() {
-  // Milestones
+  const page = document.querySelector('.repository.new.milestone');
-  if ($('.repository.new.milestone').length > 0) {
+  if (!page) return;
-    $('#clear-date').on('click', () => {
+
-      $('#deadline').val('');
+  const deadline = page.querySelector<HTMLInputElement>('form input[name=deadline]');
-      return false;
+  document.querySelector('#milestone-clear-deadline').addEventListener('click', () => {
+    deadline.value = '';
   });
-  }
 }

web_src/js/index.ts

@@ -25,7 +25,6 @@ import {initPdfViewer} from './render/pdf.ts';
 
 import {initUserAuthOauth2, initUserCheckAppUrl} from './features/user-auth.ts';
 import {
-  initRepoIssueDue,
   initRepoIssueReferenceRepositorySearch,
   initRepoIssueTimeTracking,
   initRepoIssueWipTitle,
@@ -181,7 +180,6 @@ onDomReady(() => {
     initRepoEditor,
     initRepoGraphGit,
     initRepoIssueContentHistory,
-    initRepoIssueDue,
     initRepoIssueList,
     initRepoIssueSidebarList,
     initArchivedLabelHandler,