Add follow organization and fix the logic of following page (#24345)

![image](https://user-images.githubusercontent.com/18380374/234740589-066f2e5c-30c7-4fc3-a539-066100e1f138.png)

![image](https://user-images.githubusercontent.com/18380374/234740605-88efe55d-7eaa-422e-ab86-0b5a402ca11c.png)

Maybe we can fix user card tmpl in #24319?
Or maybe a list is better here

![image](https://user-images.githubusercontent.com/18380374/234451417-7f93df20-4b19-4abb-a62d-4c67e1aa2220.png)

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Giteabot <teabot@gitea.io>

models/user/user.go

@@ -346,7 +346,7 @@ func GetUserFollowing(ctx context.Context, u, viewer *User, listOptions db.ListO
 		Select("`user`.*").
 		Join("LEFT", "follow", "`user`.id=follow.follow_id").
 		Where("follow.user_id=?", u.ID).
-		And("`user`.type=?", UserTypeIndividual).
+		And("`user`.type IN (?, ?)", UserTypeIndividual, UserTypeOrganization).
 		And(isUserVisibleToViewerCond(viewer))
 
 	if listOptions.Page != 0 {
@@ -1210,23 +1210,25 @@ func isUserVisibleToViewerCond(viewer *User) builder.Cond {
 	return builder.Neq{
 		"`user`.visibility": structs.VisibleTypePrivate,
 	}.Or(
+		// viewer's following
 		builder.In("`user`.id",
 			builder.
 				Select("`follow`.user_id").
 				From("follow").
 				Where(builder.Eq{"`follow`.follow_id": viewer.ID})),
+		// viewer's org user
 		builder.In("`user`.id",
 			builder.
 				Select("`team_user`.uid").
 				From("team_user").
-				Join("INNER", "`team_user` AS t2", "`team_user`.id = `t2`.id").
+				Join("INNER", "`team_user` AS t2", "`team_user`.org_id = `t2`.org_id").
 				Where(builder.Eq{"`t2`.uid": viewer.ID})),
+		// viewer's org
 		builder.In("`user`.id",
 			builder.
-				Select("`team_user`.uid").
+				Select("`team_user`.org_id").
 				From("team_user").
-				Join("INNER", "`team_user` AS t2", "`team_user`.org_id = `t2`.org_id").
-				Where(builder.Eq{"`t2`.uid": viewer.ID})))
+				Where(builder.Eq{"`team_user`.uid": viewer.ID})))
 }
 
 // IsUserVisibleToViewer check if viewer is able to see user profile

routers/web/org/home.go

@@ -10,6 +10,7 @@ import (
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/organization"
 	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/markup"
@@ -143,6 +144,11 @@ func Home(ctx *context.Context) {
 		return
 	}
 
+	var isFollowing bool
+	if ctx.Doer != nil {
+		isFollowing = user_model.IsFollowing(ctx.Doer.ID, ctx.ContextUser.ID)
+	}
+
 	ctx.Data["Repos"] = repos
 	ctx.Data["Total"] = count
 	ctx.Data["MembersTotal"] = membersCount
@@ -150,6 +156,7 @@ func Home(ctx *context.Context) {
 	ctx.Data["Teams"] = ctx.Org.Teams
 	ctx.Data["DisableNewPullMirrors"] = setting.Mirror.DisableNewPull
 	ctx.Data["PageIsViewRepositories"] = true
+	ctx.Data["IsFollowing"] = isFollowing
 
 	pager := context.NewPagination(int(count), setting.UI.User.RepoPagingNum, page, 5)
 	pager.SetDefaultParams(ctx)

routers/web/user/profile.go

@@ -167,30 +167,31 @@ func Profile(ctx *context.Context) {
 	language := ctx.FormTrim("language")
 	ctx.Data["Language"] = language
 
+	followers, numFollowers, err := user_model.GetUserFollowers(ctx, ctx.ContextUser, ctx.Doer, db.ListOptions{
+		PageSize: pagingNum,
+		Page:     page,
+	})
+	if err != nil {
+		ctx.ServerError("GetUserFollowers", err)
+		return
+	}
+	ctx.Data["NumFollowers"] = numFollowers
+	following, numFollowing, err := user_model.GetUserFollowing(ctx, ctx.ContextUser, ctx.Doer, db.ListOptions{
+		PageSize: pagingNum,
+		Page:     page,
+	})
+	if err != nil {
+		ctx.ServerError("GetUserFollowing", err)
+		return
+	}
+	ctx.Data["NumFollowing"] = numFollowing
+
 	switch tab {
 	case "followers":
-		items, count, err := user_model.GetUserFollowers(ctx, ctx.ContextUser, ctx.Doer, db.ListOptions{
-			PageSize: pagingNum,
-			Page:     page,
-		})
-		if err != nil {
-			ctx.ServerError("GetUserFollowers", err)
-			return
-		}
-		ctx.Data["Cards"] = items
-
+		ctx.Data["Cards"] = followers
 		total = int(count)
 	case "following":
-		items, count, err := user_model.GetUserFollowing(ctx, ctx.ContextUser, ctx.Doer, db.ListOptions{
-			PageSize: pagingNum,
-			Page:     page,
-		})
-		if err != nil {
-			ctx.ServerError("GetUserFollowing", err)
-			return
-		}
-		ctx.Data["Cards"] = items
-
+		ctx.Data["Cards"] = following
 		total = int(count)
 	case "activity":
 		date := ctx.FormString("date")

templates/org/home.tmpl

@@ -19,6 +19,18 @@
 				{{if .Org.Website}}<div class="item">{{svg "octicon-link"}} <a target="_blank" rel="noopener noreferrer me" href="{{.Org.Website}}">{{.Org.Website}}</a></div>{{end}}
 			</div>
 		</div>
+		<div class="right stackable menu">
+			<form method="post" action="{{.Link}}?action={{if $.IsFollowing}}unfollow{{else}}follow{{end}}&redirect_to={{$.Link}}">
+				{{$.CsrfTokenHtml}}
+				<button type="submit" class="ui basic button gt-mr-0">
+					{{if $.IsFollowing}}
+						{{.locale.Tr "user.unfollow"}}
+					{{else}}
+						{{.locale.Tr "user.follow"}}
+					{{end}}
+				</button>
+			</form>
+		</div>
 	</div>
 
 	{{template "org/menu" .}}

templates/user/profile.tmpl

@@ -22,7 +22,7 @@
 							<a href="{{.ContextUser.HomeLink}}.rss"><i class="ui text grey gt-ml-3" data-tooltip-content="{{.locale.Tr "rss_feed"}}">{{svg "octicon-rss" 18}}</i></a>
 						{{end}}
 						<div class="gt-mt-3">
-							<a class="muted" href="{{.ContextUser.HomeLink}}?tab=followers">{{svg "octicon-person" 18 "gt-mr-2"}}{{.ContextUser.NumFollowers}} {{.locale.Tr "user.followers"}}</a> · <a class="muted" href="{{.ContextUser.HomeLink}}?tab=following">{{.ContextUser.NumFollowing}} {{.locale.Tr "user.following"}}</a>
+							<a class="muted" href="{{.ContextUser.HomeLink}}?tab=followers">{{svg "octicon-person" 18 "gt-mr-2"}}{{.NumFollowers}} {{.locale.Tr "user.followers"}}</a> · <a class="muted" href="{{.ContextUser.HomeLink}}?tab=following">{{.NumFollowing}} {{.locale.Tr "user.following"}}</a>
 						</div>
 					</div>
 					<div class="extra content gt-word-break">